Find a nested value
{"users":[{"id":7,"profile":{"name":"Ada"}}]}The Paths view exposes $.users[0].profile.name and the RFC 6901 pointer /users/0/profile/name, both copyable.
{}JSON FormatterReady
Paste JSON or open a local fileLocal processing · 5.00 MB file limit
Parsing, formatting, tree rendering, path discovery and code generation happen in this browser. Files are not uploaded. The 5 MB limit protects the tab from blocking on unexpectedly large documents; generated schemas and types are starting points that still require domain review.
Capability checkedVerified September 9, 2026
What works
- Parse standard JSON, report a line and column when the browser supplies a parse position, and jump there on request
- Format with 2, 4, or 8 spaces, minify, and recursively sort object keys
- Explore values as a tree or filtered path list
Important limits
- Comments, trailing commas, JSON5, and other non-standard JSON syntax are rejected
- Schema and TypeScript output are inferences from one sample, not complete contracts or validation results
What the JSON Formatter does—and does not do
Exact supported inputs, outputs, limits, and primary sources for the current implementation.
Accepted input
- Standard JSON text pasted into the editor
- .json files up to 5 MB opened or dropped from the local device
- Object, array, string, number, boolean, and null root values
Produced output
- Validated and formatted or minified JSON
- An expandable tree view plus searchable readable paths and RFC 6901 JSON Pointers
- Document statistics including keys, values, depth, objects, arrays, and input size
- Inferred JSON Schema Draft 2020-12 and TypeScript declarations
- Copyable or downloadable JSON, schema, and TypeScript text
Operational limits
- Opened or dropped files are limited to 5 MB; pasted text has no fixed size cap
- The path view is capped at 5,000 entries
- Each expanded tree container displays its first 250 children
Known limitations
- Comments, trailing commas, JSON5, and other non-standard JSON syntax are rejected
- Schema and TypeScript output are inferences from one sample, not complete contracts or validation results
- Parsing uses JavaScript number semantics, so integers beyond the safe-integer range can lose precision and duplicate object keys cannot be preserved
- Very large pasted documents can be limited by browser memory and responsiveness
Standards and primary sources
Capability claims last reviewed September 9, 2026. Review dates describe the implementation audit, not content freshness by itself.
Use the JSON Formatter with the right expectations
Keep one source document while switching between formatted output, an expandable tree, searchable paths, interoperable JSON Pointers, inferred JSON Schema, and generated TypeScript. The workbench can jump to the first parse location it identifies and states its browser limits instead of claiming unlimited file support.
When it is the right tool
- Repairing malformed API responses and configuration files
- Exploring an unfamiliar JSON document
- Finding copyable paths or RFC 6901 pointers for nested values
- Creating a reviewed starting point for a schema or TypeScript type
A deliberate choice
Tooleras keeps this page specific to the job above instead of claiming support for adjacent formats, platforms, or edge cases it cannot verify. Open the capability guide for the exact inputs, outputs, limits, and sources.
Checked examples
Diagnose invalid syntax
{"active": true,}Validation rejects the trailing comma and shows the available line and column context.
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