All tools
240 free tools organized by category. Every tool runs in your browser — your data never leaves your device.
Formatters & Beautifiers
Format and beautify code, JSON, XML, SQL and more
JSON Formatter
Format, validate, and beautify JSON instantly in your browser
SQL Formatter
Format and beautify SQL queries for any dialect (MySQL, PostgreSQL, etc.)
HTML Formatter
Format, indent, and beautify HTML, XHTML, and HTML5 markup
CSS Formatter
Beautify and indent CSS, SCSS, LESS code — configurable style, production-ready output
XML Formatter
Beautify and validate XML documents — SOAP, RSS, SVG, configs
JavaScript Formatter
Beautify JavaScript, TypeScript, JSX with Prettier-style formatting
YAML Formatter
Format YAML for Kubernetes, Docker, CI configs — indent properly, validate syntax
TOML Formatter
Format TOML config files — Cargo.toml, pyproject.toml, Hugo configs
TypeScript Formatter
Format TypeScript and TSX with type annotations, interfaces, generics preserved
Python Formatter
Format Python code with Black-compatible style — PEP 8 compliant, consistent
Encoders & Decoders
Encode and decode Base64, URL, HTML, JWT and more
Base64 Encoder/Decoder
Encode and decode Base64 strings, files, and images instantly
URL Encoder/Decoder
Percent-encode and decode URLs, query strings, and form data
HTML Entity Encoder/Decoder
Encode special characters to HTML entities (&, <, ", ©) or decode entities back to their literal characters.
JWT Decoder
Decode and inspect JSON Web Token (JWT) headers, payloads, and signatures
Unicode Converter
Convert text between Unicode codepoints (U+XXXX), UTF-8 byte sequences, UTF-16 code units, HTML entities, and escaped forms.
Generators
Generate UUIDs, passwords, lorem ipsum, hashes and more
UUID Generator
Generate UUID v4, v1, v7 and GUIDs — bulk or single, instantly
Password Generator
Generate strong, cryptographically secure random passwords
Lorem Ipsum Generator
Generate Lorem Ipsum or alternative placeholder text for designs and mockups
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes for text and files
Regex Tester
Test and debug regular expressions with live matching and explanation
Cron Expression Generator
Build and understand cron expressions — visual editor, plain English explanation
Random Number Generator
Generate random integers or decimals within any range, with uniqueness, distribution options, and cryptographically strong output.
Random String Generator
Generate random strings with configurable length, character sets, and patterns for tokens, IDs, passwords, and test data.
Random Color Generator
Generate random colors in hex, RGB, or HSL with control over saturation, lightness, and hue range for specific moods or palettes.
Placeholder Image Generator
Generate placeholder images with custom dimensions, colors, and text labels for mockups, wireframes, and development.
Fake Data Generator
Generate realistic fake test data — names, emails, addresses, phones, dates, UUIDs, and more — for development and demos.
WiFi QR Code Generator
Create a Wi-Fi QR code so guests can join your network by scanning it with their phone. Supports WPA/WPA2, WPA3, WEP, and open networks with full emoji and special character support.
vCard QR Code Generator
Generate a vCard QR code that saves your contact info to any phone with one scan. Include name, phone, email, address, website, social handles, and photo in a scannable QR image.
Bulk QR Code Generator
Batch generate hundreds of QR codes at once from a CSV or plain text list. Download as a ZIP of PNG or SVG files with custom size, color, error correction, and file naming.
Barcode Generator
Generate barcodes in Code 128, Code 39, EAN-13, UPC-A, ITF-14, Codabar, and more formats with custom size and label options. Download as PNG or SVG for print, shipping, or inventory.
Regex Generator
Describe what you want to match in plain English and get a working regular expression with tested patterns, flavor-specific variants, and live match testing for multiple languages.
Color Name Finder
Find the nearest named color for any hex, RGB, or HSL value from CSS web colors, X11 standard colors, and Pantone approximations.
Meme Generator
Create shareable memes from popular templates or your own image with custom top and bottom text, color, stroke, font, and emoji support. Export as PNG for instant sharing.
Invoice Generator
Generate professional PDF invoices with line items, taxes, discounts, and custom branding. Multiple currencies, tax templates (VAT, GST, sales tax), and print-ready output for freelancers and small businesses.
Resume Builder
Build professional, ATS-friendly resumes with customizable sections for experience, skills, education, and projects. Multiple modern templates, PDF export, and zero account or data storage.
Converters
Convert between formats like JSON to YAML, CSV to JSON, Markdown to HTML
JSON to YAML Converter
Convert JSON to YAML or YAML to JSON — preserves structure, nested objects
CSV to JSON Converter
Convert CSV files to JSON arrays or objects with custom delimiters
Markdown to HTML
Convert Markdown to clean HTML — GFM, tables, code highlighting
Number Base Converter
Convert numbers between binary, octal, decimal, hexadecimal, and any base from 2 to 36 with clear step-by-step output.
Color Converter
Convert between HEX, RGB, HSL, HSV, CMYK, Lab, LCH color formats
Unix Timestamp Converter
Convert between Unix timestamps (epoch) and human-readable dates
JSON to CSV
Flatten nested JSON into CSV rows — ready for Excel, Google Sheets, analysis
YAML to JSON
Transform YAML configuration and data into equivalent JSON with full support for anchors, aliases, flow style, and multi-line strings.
HTML to Markdown
Convert HTML to clean, readable Markdown preserving structure and formatting
Pixels to REM Converter
Convert pixels to rem, em, and percentages with a configurable root font size so your typography, spacing, and layouts scale with user settings and stay accessible.
Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, Rankine, and Réaumur with the conversion formula displayed for every result.
Text to Binary
Convert text to binary representation with ASCII or UTF-8 encoding and configurable output format (spaces, dashes, or continuous).
Text to Hex
Convert text to hexadecimal byte sequences with ASCII or UTF-8 encoding and flexible output formatting (0x prefix, spaces, or continuous).
Roman Numeral Converter
Convert Arabic numbers to Roman numerals and vice versa. Handles any number from 1 to 3999 with proper notation.
Length Converter
Convert lengths and distances between metric and imperial units including meters, feet, inches, miles, kilometers, and yards.
Weight Converter
Convert weight and mass values between metric units (kg, g, mg, tonne) and imperial units (lb, oz, stone, ton) with exact conversion factors.
Speed Converter
Convert speeds between km/h, mph, m/s, ft/s, knots, and Mach number for driving, aviation, running, and scientific contexts.
JSON to XML Converter
Convert between JSON and XML — for SOAP APIs, legacy integration, data migration
XML to JSON Converter
Convert XML documents into clean, structured JSON with full support for attributes, namespaces, and nested elements.
Date Formatter
Format dates in any pattern — ISO 8601, US, European, custom strftime tokens — with full timezone and locale support.
SQL to MongoDB
Translate SQL SELECT statements into equivalent MongoDB find() queries and aggregation pipelines. Handles WHERE, JOIN, GROUP BY, ORDER BY, and LIMIT with step-by-step pipeline explanation.
JSON to SQL
Generate SQL INSERT statements and CREATE TABLE from JSON arrays
CSV to SQL
Convert CSV data to SQL INSERT statements with auto type detection, escaping, and configurable table name and SQL dialect.
Markdown to Plain Text
Strip Markdown syntax to produce plain readable text. Removes headers, bold, italic, links, code, and other formatting markers.
TSV to CSV
Convert TSV (tab-separated) to CSV (comma-separated) format with proper quoting for fields containing commas or quotes.
Markdown Table Generator
Build and format GitHub-flavored markdown tables with a visual editor. Align columns, add rows, paste from spreadsheets, and export clean, aligned markdown ready for READMEs and docs.
HTML Table to CSV
Convert HTML tables to CSV format for data analysis. Handles rowspan, colspan, and extracts clean tabular data.
CSV to Markdown Table
Convert CSV or TSV data into clean GitHub-flavored markdown tables, bullet lists, or numbered lists with configurable delimiters, alignment, and pipe escaping.
Data Rate Converter
Convert data transfer rates between bits per second and bytes per second units including Kbps, Mbps, Gbps, KB/s, MB/s, GB/s.
Angle Converter
Convert angles between degrees, radians, gradians, arcminutes, and arcseconds with instant results and precise calculations.
Pressure Converter
Convert pressure between PSI, Pascal, Bar, Atmosphere, Torr, mmHg, kPa, MPa, and other common pressure units instantly.
Time Zone Converter
Convert time between any two timezones with DST awareness and multi-city comparison for scheduling meetings across the globe.
Inches to CM
Convert inches to centimeters and centimeters to inches with exact 2.54 factor for height, fabric, design, and technical applications.
KG to LBS
Convert kilograms to pounds and vice versa with exact conversion factor. Includes stones, ounces for complete weight conversion.
Miles to KM
Convert miles to kilometers and kilometers to miles with precision 1.609 factor for travel, driving, and fitness contexts.
Cups to ML
Convert volumes between cups and milliliters for cooking, baking, and recipe conversions. Supports US, UK, and metric cups.
Text Tools
Word counter, case converter, diff checker, string utilities
Word Counter
Count words, characters, sentences, paragraphs, and estimate reading time
Case Converter
Convert between upper, lower, title, camel, snake, kebab, Pascal, CONSTANT cases
Text Diff Checker
Compare two text blocks — see additions, deletions, and changes highlighted
String Escape/Unescape
Escape or unescape strings for JSON, XML, HTML, JavaScript, SQL embedding
Text to Slug Converter
Convert titles to URL-friendly slugs — SEO-ready, handles Unicode and accents
Text Repeater
Repeat any text a specified number of times with optional separators, line breaks, or custom delimiters for test data and patterns.
Remove Duplicate Lines
Remove duplicate lines from text with case-sensitive or case-insensitive matching, preserving original order or sorting the result.
Line Counter
Count lines in text with separate totals for blank lines, non-blank lines, words, characters, and paragraphs for detailed statistics.
Text Reverser
Reverse text character-by-character, word-by-word, line-by-line, or sentence-by-sentence with proper Unicode and emoji handling.
Add Line Numbers
Prepend line numbers to every line of text with configurable starting number, padding width, and separator.
Remove Line Breaks
Remove line breaks from text, convert to spaces, or keep paragraph breaks while flattening unwanted newlines.
Sort Lines
Sort text lines alphabetically, numerically, by length, randomly, or in reverse, with options for case sensitivity and duplicate removal.
Find and Replace
Find and replace text with regex support, case sensitivity, whole-word matching, and preview of all changes before applying.
Extract Emails from Text
Extract every email address from pasted text with validation, deduplication, and clean export to CSV or line-separated list.
Extract URLs from Text
Extract every URL from pasted text with deduplication, validation, and export to CSV, JSON, or newline-separated list.
Text to ASCII Art
Turn words into ASCII art banners using Figlet-style fonts. Pick from dozens of font faces and paste the result into READMEs, terminal welcome messages, or code comments.
Whitespace Remover
Remove extra whitespace — leading, trailing, or internal — collapse multiple spaces, and strip tabs or line breaks from any text.
Character Map
Browse and copy any Unicode character including emoji, symbols, arrows, mathematical signs, and non-Latin scripts.
Lorem Ipsum Alternatives
Generate themed placeholder text with alternatives to lorem ipsum — pirate, hipster, corporate, bacon, cupcake, zombie, and other styles perfect for mockups, demos, and presentations that need personality.
Remove HTML Tags
Strip HTML tags from text while keeping content readable, with options to preserve specific tags and decode HTML entities.
Extract Phone Numbers
Extract phone numbers from pasted text in US, UK, EU, and international formats, deduplicate, and export to CSV, JSON, or plain list.
Number to Words
Convert numbers to written English words for checks, legal documents, and anywhere a numeric value needs to be spelled out.
Uppercase to Lowercase
Convert text between lowercase, uppercase, title case, sentence case, and programming cases like camelCase with proper Unicode handling.
Text to Speech
Convert text to natural-sounding speech in dozens of languages using browser speech synthesis. Adjust rate, pitch, and volume, preview voices, and download MP3 for videos, accessibility, and apps.
Fancy Text Generator
Convert plain text into dozens of fancy Unicode font styles (bold, italic, script, monospace, double-struck, circled, bubble, and more) ready to paste into social media bios and messages.
Invisible Character Generator
Generate invisible characters like zero-width space, zero-width non-joiner, and the Hangul filler so you can paste blank-looking text into fields that reject empty input.
Web Tools
Meta tag generator, Open Graph preview, robots.txt generator, sitemap tools
Meta Tag Generator
Generate SEO meta tags, Open Graph, Twitter Cards, and canonical tags
Open Graph Preview
Preview how pages appear when shared on Facebook, LinkedIn, Twitter, WhatsApp, and other platforms by rendering Open Graph metadata.
Robots.txt Generator
Generate robots.txt files with allow and disallow rules, sitemap references, and user-agent targeting to control search engine crawling.
HTTP Status Code Reference
Complete reference for every HTTP status code with meaning, usage guidelines, and examples for REST API design.
Sitemap Generator
Quickly generate XML sitemaps from a pasted URL list or auto-generated for simple sites, with essential fields for submission to search engines.
Htaccess Generator
Generate Apache .htaccess files with redirects, URL rewrites, password protection, compression, caching, and security headers.
CSP Header Generator
Generate Content Security Policy headers with a structured form for all CSP directives, trusted sources, and advanced features.
Mailto Link Generator
Generate mailto links with subject, body, CC, BCC, and pre-filled content, plus ready-to-use HTML anchor tags for contact buttons, footers, and documentation.
Table of Contents Generator
Auto-generate a table of contents from markdown headings or HTML with custom depth, anchor slugs, numbering, and output styles for READMEs, documentation, and articles.
What Is My IP
Show your current public IP address, approximate location, ISP, and the details websites can see about you from your connection.
User Agent Parser
Parse User-Agent strings to identify browser, version, operating system, device type, and rendering engine for logs and analytics.
ARIA Role Reference
Complete reference for WAI-ARIA roles, states, and properties with usage examples, screen reader behavior, and accessibility guidance.
PWA Manifest Generator
Build a complete PWA manifest.json file with icons, theme colors, display mode, shortcuts, and share targets. Validate against the W3C spec and preview the install experience.
IP Address Lookup
Look up IP address details including approximate location, ISP, organization, ASN, timezone, and reverse DNS.
DNS Lookup
Query DNS records for any domain — A, AAAA, MX, TXT, CNAME, NS, SOA, CAA — with resolver path and TTL details.
SSL Certificate Checker
Check SSL/TLS certificate validity, expiration, issuer, cipher suites, and chain details for any HTTPS domain.
Website Speed Test
Test website speed with real Core Web Vitals (LCP, INP, CLS), performance scores, resource sizes, and waterfall timing. Get specific, actionable recommendations for faster pages.
Broken Link Checker
Scan any webpage or sitemap for broken links, 404 errors, excessive redirect chains, and mixed-content issues. Get detailed response reports and fix suggestions for SEO and UX.
CSS Tools
CSS minifier, gradient generator, flexbox playground, unit converter
CSS Gradient Generator
Create linear, radial, and conic CSS gradients with live preview
CSS Flexbox Playground
Build flex layouts interactively — see changes live, copy production CSS
CSS Box Shadow Generator
Create realistic CSS box shadows — single, layered, inset, neumorphism styles
CSS Unit Converter
Convert between CSS units — px, rem, em, vw, vh, %, pt, cm — for responsive design
CSS Border Radius Generator
Generate CSS border-radius — from simple rounded corners to organic blob shapes
CSS Text Shadow Generator
Create text glow, emboss, outline, and 3D effects with CSS text-shadow
CSS Grid Generator
Design CSS Grid layouts visually — define rows, columns, areas, copy code
CSS Clip Path Generator
Create custom CSS shapes with clip-path — polygons, circles, ellipses, SVG paths
CSS Animation Generator
Build CSS keyframe animations and transitions with live preview and easing curves
Tailwind CSS Converter
Convert between plain CSS and Tailwind utility classes. Paste CSS rules and get the equivalent Tailwind classes, or reverse the process to see what utilities expand to.
Crypto & Security
Hash generators, encryption tools, password strength checker
Password Strength Checker
Test password strength with entropy score, crack-time estimate, and breach check
HMAC Generator
Generate HMAC signatures (SHA-256, SHA-512) for API auth and webhook verification
Bcrypt Hash Generator
Hash passwords with bcrypt and verify existing hashes — configurable rounds
RSA Key Generator
Generate RSA and EC key pairs (2048/3072/4096-bit) for SSH, TLS, JWT — PEM format
Privacy Policy Generator
Generate a compliant privacy policy covering GDPR, CCPA, and common privacy regulations. Customize sections for data collection, cookies, analytics, third parties, and user rights.
Terms of Service Generator
Build comprehensive terms of service for websites, apps, and SaaS products covering usage rules, liability limits, IP ownership, acceptable use, termination, and governing law.
Math & Numbers
Number base converter, percentage calculator, unix timestamp tools
Percentage Calculator
Calculate percentages, percentage change, increase or decrease, and reverse percentages with step-by-step working shown.
Byte Converter
Convert digital storage units between bytes, KB, MB, GB, TB, PB with support for both binary (base-1024) and decimal (base-1000) conventions.
Scientific Calculator
Free online scientific calculator with trigonometric, logarithmic, exponential, and statistical functions for science, engineering, and math.
Aspect Ratio Calculator
Calculate image and video aspect ratios. Resize dimensions while maintaining ratio for common 16:9, 4:3, 1:1 and custom formats.
Age Calculator
Calculate exact age from a birth date in years, months, days, and smaller units with leap-year-accurate arithmetic.
Stopwatch & Timer
Start a stopwatch with lap tracking or a countdown timer with alarms. Millisecond precision, keyboard shortcuts, and background-safe operation for timing workouts, focus sessions, and tests.
Date Difference Calculator
Calculate exact difference between two dates in years, months, weeks, days, hours with optional weekend or holiday exclusion.
BMI Calculator
Calculate body mass index (BMI) in metric or imperial units with WHO category classification and healthy weight range for your height.
GPA Calculator
Calculate GPA on 4.0 scale for college or high school. Supports weighted (AP/Honors) and unweighted GPA calculations.
Finance & Money
Calculators for loans, salary, interest, discounts, and everyday money decisions. No signup, no data collected.
Mortgage Calculator
Free mortgage calculator with PMI auto-removal at 80% LTV, full amortization schedule, extra payments, and biweekly comparison. No signup.
Refinance Calculator
Mortgage refinance calculator with break-even analysis, lifetime interest comparison, matched-term and cash-out modes, and no-closing-cost modeling. Runs in your browser.
Mortgage Affordability Calculator
How much house can you afford? Three ceilings side by side: lender max, conservative 28/36 budget, and your actual comfort ceiling. FHA, VA (with residual income), conventional, self-employed, student-loan-aware.
Credit Card Payoff Calculator
Credit card payoff calculator with the minimum-payment trap always visible, plus avalanche vs snowball for multi-card debt and balance-transfer scenario modeling. Runs in your browser.
Tip Calculator
Calculate tip amount, total with tip, and split the bill among any number of people with customizable tip percentages.
Auto Loan Calculator
Car loan calculator with trade-in, negative-equity handling, 50-state sales tax, and honest 36/48/60/72/84-month term comparison. 2026 APR defaults, no signup.
Loan Calculator
Calculate monthly payment, total interest, and a full amortization schedule for mortgages, auto loans, student loans, and personal loans.
Discount Calculator
Calculate sale price, discount amount, and total savings with support for percentage-off, dollar-off, and stacked discount scenarios.
Salary Calculator
Convert between hourly, monthly, and annual salary with tax deductions, hours worked, and common scenarios.
Compound Interest Calculator
Calculate compound interest on investments with configurable rate, frequency, duration, and optional monthly contributions.
Image Tools
Color picker, image to Base64, SVG optimizer, favicon generator
Color Picker
Pick colors interactively and get HEX, RGB, HSL, HSV, and CMYK values with alpha, plus save swatches to build palettes you can copy straight into CSS, Figma, or code.
Image to Base64
Convert any image to Base64-encoded data URI for embedding directly in HTML src, CSS background, or JSON data fields.
SVG Optimizer
Optimize SVG files by removing unnecessary metadata, cleaning attributes, and minifying code for smaller file size with no visual change.
Image Resizer
Resize PNG, JPG, WebP images by pixels or percentage with aspect lock
Image Cropper
Crop any image with drag-to-select interface, aspect ratio presets (1:1, 16:9, 4:3), and precise pixel-level control.
Image Compressor
Compress JPG, PNG, WebP images — reduce file size by up to 90%
PNG to JPG Converter
Convert PNG images to JPG/JPEG format with adjustable quality
JPG to PNG Converter
Convert JPG/JPEG images to PNG format for transparency or lossless editing
Image to WebP Converter
Convert PNG, JPG, GIF images to WebP format — 25-35% smaller files
WebP to PNG Converter
Convert WebP images to PNG format preserving transparency and quality, suitable for systems that don\u2019t support WebP.
Image Flipper
Flip images horizontally (mirror) or vertically with lossless quality, supporting all common image formats.
Image Rotator
Rotate images by 90, 180, or 270 degrees, or by any custom angle. Works with all common image formats and preserves quality.
Image Grayscale Converter
Convert any image to grayscale or black and white with adjustable intensity and choice of conversion algorithm.
Image Blur Tool
Apply Gaussian blur, motion blur, or radial blur to any image with adjustable intensity for artistic effects or privacy.
Image Brightness/Contrast
Adjust brightness, contrast, and exposure on any image with real-time preview. Free, browser-based, preserves original quality.
Favicon Generator
Generate favicons in all sizes — ICO, PNG, Apple Touch, Android Chrome
Image Watermark
Add customizable text watermarks to images with font, size, color, opacity, position, and rotation controls.
Image Color Picker
Click on any image to pick colors and get hex, RGB, and HSL values. Extract exact colors from photos, screenshots, or designs.
Image Sepia Filter
Apply sepia tone to any image for vintage look with adjustable intensity and classic brown color processing.
Image Invert Colors
Invert image colors to create a negative or color-reversed effect. Useful for creative effects, X-ray look, and film negative simulation.
Image Pixelate
Pixelate any image with configurable block size for censoring faces, creating retro 8-bit style, or adding artistic pixelation.
Image Border Adder
Add customizable borders and frames to images with choice of color, width, style, and rounded corners for polished presentation.
Image Background Remover
Automatically remove backgrounds from images using AI-based segmentation. Produces transparent PNG output ready for design use.
Image to PDF
Convert images to PDF documents. Supports multiple images combined into one PDF with configurable page size, orientation, and margins.
Screenshot to Code
Turn UI screenshots into HTML, React, or Tailwind code. Upload a design or screenshot and get a layout approximation with sensible components, colors, and typography for quick prototyping.
SVG to PNG Converter
Convert SVG vector graphics to PNG raster images at any resolution. Preserves transparency and allows custom output dimensions.
SVG Editor
Edit SVG code with live visual preview, syntax highlighting, and real-time validation for quick changes and experimentation.
PNG to SVG Tracer
Convert PNG raster images to SVG vector format using automatic tracing. Best results on simple graphics, logos, and high-contrast images.
Image to Text (OCR)
Extract text from images using OCR technology. Works with photos, screenshots, scanned documents, and supports dozens of languages.
Image Collage Maker
Combine multiple photos into a single collage image using grid or custom layouts with adjustable spacing and borders.
Image Overlay Text
Add text overlays to any image with customizable font, color, size, position, shadow, and background for memes and social media.
PDF Tools
Merge, split, compress, and convert PDF files
PDF Merge
Combine multiple PDFs into one file with drag-to-reorder — no upload needed
PDF Split
Split PDF files by page ranges, specific pages, or every N pages to extract sections or divide large documents.
PDF Compress
Reduce PDF file size with configurable compression levels. Balance between file size and quality for email, web, and storage.
PDF to Image
Convert PDF pages to JPG, PNG, or WebP images with configurable resolution and the ability to export specific pages or entire documents.
Image to PDF
Combine multiple images into a single PDF with configurable page size, orientation, margins, and reorder via drag-and-drop.
PDF Page Rotator
Rotate PDF pages by 90, 180, or 270 degrees individually, by range, or entire document with quality preserved.
PDF Page Reorder
Reorder PDF pages by drag-and-drop, remove unwanted pages, or duplicate pages with visual thumbnail preview.
Add Watermark to PDF
Add customizable text watermarks to every page of a PDF with control over font, color, size, opacity, rotation, and position.
PDF to Text
Extract plain text from PDF files with options for layout preservation, multi-column handling, and OCR for scanned documents.
JSON Tools
Validate, compare, flatten, and transform JSON data
JSON Validator
Validate JSON syntax and schema — pinpoint errors by line and column
JSON to TypeScript
Generate TypeScript interfaces and types from JSON — handle nested, optional, arrays
JSON Path Finder
Explore JSON documents interactively and copy the exact JSONPath or JMESPath query for any value. Perfect for API tests, data pipelines, and debugging complex nested structures.
JSON Diff
Compare two JSON objects — find added, removed, and changed properties
JSON Minifier
Compact JSON by removing whitespace — reduce file size by up to 80%
JSON Tree Viewer
Explore deeply nested JSON with collapsible tree view — search, copy paths
Developer Utilities
Chmod calculator, cron builder, HTTP headers, and more
Chmod Calculator
Calculate Unix file permissions — convert between symbolic and octal notation
HTTP Headers Lookup
Complete reference for HTTP request and response headers with usage examples, RFC references, and common values.
Epoch Converter
Convert between Unix epoch timestamps (seconds and milliseconds) and human-readable dates in any timezone with multiple format options.
JSON Escape/Unescape
Escape JSON for embedding in code or unescape JSON strings back to readable format
Diff Checker
Compare two text documents side by side with line-by-line diff highlighting for quick change identification.
QR Code Generator
Generate QR codes for URLs, Wi-Fi, vCards, SMS, email — download PNG or SVG
JSON Path Evaluator
Query JSON with JSONPath — test expressions like $.users[0].name, filter, extract
Regex to English
Paste any regular expression and get a plain-English, token-by-token explanation of what it matches. Essential for debugging inherited patterns, learning regex, and catching subtle bugs.
Crontab Guru
Translate cron expressions into plain English, calculate next run times, and explore common scheduling patterns.
HTTP Status Code Lookup
Quick lookup tool for HTTP status codes — enter any status number and get the meaning, category, and usage guidelines instantly.
JWT Generator
Create signed JSON Web Tokens (JWT) with custom claims — HS256, RS256, ES256
API Request Builder
Build and test HTTP API requests with method, headers, body, authentication, and query parameters — inspect full response in your browser.
.env File Validator
Validate .env files for syntax errors, missing required variables, secret leaks, and compare against .env.example templates.
Git Commit Message Generator
Create conventional commit messages — feat, fix, docs, with scope and breaking changes
.gitignore Generator
Create .gitignore files for 100+ languages, OS, IDEs — combinable templates
Dockerfile Generator
Generate production Dockerfiles for any stack — multi-stage, optimized, secure
Docker Compose Generator
Generate docker-compose.yml for multi-container apps — databases, caches, services
cURL to Code Converter
Convert cURL commands to equivalent code in Python (requests), JavaScript (fetch), PHP, Go, Ruby, Node, and other languages.
Kubernetes YAML Generator
Generate Kubernetes manifests — Deployment, Service, Ingress, ConfigMap, Secret
Code Diff Viewer
Compare two code files side by side with syntax highlighting, line-by-line diff, and support for any programming language.
Color Tools
Color palettes, contrast checkers, gradient generators, and color scheme tools
Color Palette Generator
Generate harmonious color palettes from any base color with complementary, analogous, triadic, and monochromatic schemes.
Color Contrast Checker
Check color contrast ratios between foreground and background for WCAG 2.1 AA and AAA compliance with live preview.
Tailwind CSS Color Finder
Find the nearest Tailwind CSS color from any hex or RGB input and get the exact Tailwind class name (bg-blue-500, text-red-400, etc.).
Gradient CSS Generator
Design linear, radial, and conic CSS gradients visually with draggable color stops, direction controls, and copy-ready CSS output for any modern browser.
Color Blindness Simulator
Simulate how colors and images appear to users with protanopia, deuteranopia, tritanopia, achromatopsia, and other color vision deficiencies.
Color Shades Generator
Generate tints (lighter), shades (darker), and tones (desaturated) from any base color for design systems and UI states.
Image Color Palette Extractor
Extract dominant colors from any image using color quantization algorithms to build palettes for design projects.
SEO Tools
Meta tag analyzers, keyword tools, sitemap generators, and SEO checkers
SEO Meta Tag Analyzer
Analyze any URL for title, meta description, Open Graph, Twitter Card, and other SEO tags with quality and length scoring.
Keyword Density Checker
Analyze keyword density in text with single-word and multi-word phrase frequencies, percentages, and SEO recommendations.
Google SERP Preview
Preview how your page will appear in Google search results with accurate title, URL, and meta description rendering for desktop and mobile.
Schema Markup Generator
Generate schema.org JSON-LD structured data for articles, products, recipes, FAQs, events, local business, and more.
XML Sitemap Generator
Generate XML sitemaps conforming to the sitemaps.org protocol with URL, priority, change frequency, and lastmod dates for SEO.
Canonical URL Checker
Check canonical URL tags on any page and detect missing, wrong, or conflicting canonicals that cause SEO duplicate content issues.
Open Graph Debugger
Debug Open Graph and Twitter Card metadata — inspect raw tags, validate requirements, and get links to force social platform cache refresh.
Heading Structure Checker
Analyze H1-H6 heading structure on any page — detect missing headings, multiple H1s, broken hierarchy, and accessibility problems.
Minifiers
Minify CSS, JavaScript, HTML, and SVG to reduce file sizes
Encoding Tools
Encode and decode text in various formats
Morse Code Translator
Translate between text and Morse code with support for letters, numbers, punctuation, and audio playback of the encoded signal.
Binary to Text Converter
Convert binary code (0s and 1s) to readable text in ASCII or Unicode, with configurable grouping and separator options.
Hex to Text Converter
Convert hexadecimal byte sequences to readable ASCII or UTF-8 text with flexible input formatting.
ROT13 Encoder/Decoder
Apply the ROT13 cipher to any text — letters rotate 13 positions in the alphabet. Self-inverse, so the same tool encodes and decodes.
Punycode Converter
Encode internationalized domain names to Punycode and decode xn-- prefixed ASCII back to Unicode so non-Latin domains work in DNS, email, and the web.
URL Shortener
Turn long URLs into short, shareable links with custom aliases, automatic QR code generation, and UTM parameter templating. Perfect for social media, print materials, and marketing campaigns.