PNG to JPG Converter
Image ToolsConvert PNG images to JPG/JPEG format with adjustable quality. Free, private — all processing in your browser.
Drop a PNG and download it as a JPG. It converts in your browser and shows the before/after file sizes so you can see the savings — which are usually large, because JPG's lossy compression makes photos far smaller than PNG. You can adjust the JPG quality to balance size against fidelity.
The most important thing to know: JPG doesn't support transparency. If your PNG has transparent areas, they'll be filled with white when converted (that's what this tool does), because JPG has to put something there. So this is ideal for photos and screenshots saved as PNG, and a poor fit for logos or icons that rely on a transparent background.
Nothing is uploaded — the image is processed locally on a canvas and stays on your device. Convert a screenshot for an email, shrink a photo someone sent as a bloated PNG, or get an image under an upload limit, all without installing anything.
What the PNG to JPG Converter can do
Adjustable quality
Slider from 1-100. Quality 85 is the web sweet spot. Live preview shows the tradeoff.
Batch conversion
Drop multiple PNGs at once. All convert with the same quality setting and download individually or as a ZIP.
Custom background color
PNG transparency is flattened. Choose white (default), black, or any color to fill transparent areas.
Live preview
See original PNG and converted JPG side-by-side before downloading. Zoom in to check quality.
File size display
Shows original vs converted size and compression ratio — typically 70-90% smaller for photos.
Metadata removal
EXIF data (including GPS location) is stripped by default for privacy. Optional: keep metadata.
No upload, no account
Runs entirely in your browser. No file uploads, no registration, no watermarks on output.
Handle large images
Multi-megapixel PNGs convert smoothly. Browser memory is the only limit.
Step by step
- 1
Drop your PNG files
Drag and drop one or multiple PNGs, or click to select. PNG files over 100 MB may slow your browser.
- 2
Set quality
85% is the sweet spot — imperceptible quality loss, maximum file size savings. Adjust up for higher quality, down for smaller files.
- 3
Choose background color
If your PNG has transparent areas, choose what color to fill them with. White is standard for photos.
- 4
Compare and adjust
Side-by-side preview shows original and converted. Zoom to inspect fine detail. Adjust quality if needed.
- 5
Download
Individual JPGs or a ZIP of all converted files. Originals are not modified — only new JPG files are created.
Where this helps
Web performance
- →Reduce page load time: Photos as JPG are 10× smaller than PNG. Hero images, gallery photos, product shots all benefit.
- →Lower bandwidth costs: CDN and hosting bandwidth costs less with smaller images. Convert photos before uploading.
- →Better mobile experience: Users on 3G/4G see faster image loads. JPG at 85% is the mobile-friendly standard.
- →Core Web Vitals: Smaller hero images improve LCP (Largest Contentful Paint) — a Google ranking factor.
Ecommerce
- →Product catalog images: Photo product shots are better as JPG. Transparent product cutouts (no background) should stay PNG or convert to WebP.
- →Marketplace listings: Amazon, eBay, Etsy: JPG is universally accepted and smaller files upload faster.
- →Email marketing images: Product images in email campaigns — JPG to keep emails under 25 MB total size limit.
Content and social
- →Blog post photos: Feature images in blog posts — JPG for photos, PNG for diagrams/screenshots.
- →Social media uploads: Instagram, Twitter, Facebook all accept JPG and recompress aggressively. Start with high-quality JPG for best results.
- →Email attachments: Send photos in email — JPG keeps attachments small enough to pass through email size limits.
Storage and archive
- →Cloud storage optimization: Google Drive, Dropbox, iCloud — convert redundant PNGs to JPGs to save storage space.
- →Photo archives: For long-term photo storage, JPG at 95% quality is space-efficient and visually identical to original.
- →Backup batch reduction: Before backing up a phone's photo library, convert PNGs to JPGs to reduce backup size.
Worked examples
Typical photo conversion
DSLR or phone photo.
Source: vacation.png (4.2 MB, 3000×2000) Quality: 85
vacation.jpg Size: 420 KB (10× smaller) Quality: visually indistinguishable
Transparent PNG with white background
Flatten transparency.
Source: logo_transparent.png (280 KB) Background: white Quality: 90
logo_with_bg.jpg (45 KB) Transparent areas filled with white
Batch convert 50 photos
Bulk conversion for website.
50 PNG photos, total 180 MB Quality: 85
50 JPG photos, total 18 MB (10× reduction) Total time: ~2 minutes
High-quality archive
Minimum loss for long-term storage.
Source: family_photo.png (8 MB) Quality: 95
family_photo.jpg (2.1 MB) Size: 4× smaller Quality: near-lossless
When NOT to use JPG
Graphics with text or sharp edges.
Source: logo.png (50 KB, solid colors)
⚠ Warning: logo has sharp edges and solid colors JPG compression introduces visible artifacts on edges Recommendation: keep as PNG or use SVG
How it works
The PNG is drawn onto an HTML canvas and exported with canvas.toDataURL("image/jpeg", quality). Before drawing, the canvas is filled with white, so any transparent pixels in the source become white rather than black in the JPG. The quality slider maps to the JPEG encoder's quality setting; lower values discard more detail for a smaller file. The result size is estimated from the encoded data.
Converting PNG to JPG is a one-way loss: JPG compression is lossy, so fine detail and sharp edges (especially text and flat-color regions) can pick up compression artifacts. For photographs this is rarely noticeable at 85%+ quality; for screenshots with crisp text and solid backgrounds, artifacts show up sooner, and PNG or WebP may be the better format. Re-encoding also strips EXIF and color-profile metadata. All processing happens client-side.
Troubleshooting
⚠Transparency becomes white
JPG has no alpha channel, so transparent areas in the PNG are filled with white. If your image needs a transparent background (logos, icons, overlays), convert to WebP instead of JPG.
⚠Text and sharp edges get artifacts
JPG's lossy compression blurs crisp edges. Screenshots with text or solid-color UI can look worse as JPG than as PNG. Keep those as PNG, or use high quality and check the preview.
⚠The conversion is lossy and one-way
Detail discarded by JPG can't be recovered by converting back to PNG later. Keep your original PNG if you might need full quality again.
⚠Metadata is dropped
Re-encoding removes EXIF and color-profile data. Good for privacy, but embedded orientation or profile information won't carry to the JPG.
⚠Very low quality shows blocking
Pushing quality far down introduces visible blocky artifacts. For photos, 80–90% is usually the right range; go lower only when you truly need a tiny file.
How it compares
Versus a desktop editor, the win here is speed and privacy: no upload, no install, instant size comparison. For photos saved as oversized PNGs, converting to JPG at a sensible quality is the single biggest size win you can make.
If you need to keep transparency, JPG is the wrong target — use WebP, which supports both transparency and strong compression. And if your image is line art, a logo, or a screenshot with sharp text, JPG's artifacts may look worse than a well-compressed PNG. Match the format to the content: JPG for photographs, PNG/WebP for graphics and transparency.
Questions and answers
▶Why did my transparent PNG get a white background?
Because JPG doesn't support transparency. The tool fills transparent areas with white before converting. If you need to keep transparency, convert to WebP instead.
▶Will converting to JPG reduce the file size?
Usually a lot, for photos. JPG's lossy compression is far more efficient than PNG for photographic content. The tool shows the before and after sizes so you can see the exact savings.
▶Does converting lose quality?
JPG is lossy, so some detail is discarded — minimal at high quality for photos, more noticeable on text and sharp edges. Keep your original PNG in case you need full quality later.
▶Is my image uploaded to a server?
No. The conversion runs in your browser on a canvas. Your PNG never leaves your device.
▶When should I not convert PNG to JPG?
When the image has transparency, or is a logo, icon, or screenshot with sharp text and flat colors. Those look better as PNG or WebP; JPG artifacts are more visible on that kind of content.
Useful references
- PNG Specification — Official W3C specification for PNG format.
- JPEG Committee — Standards organization behind JPEG.
- Image Formats Compared — Google Dev — Google's image optimization guide.
- MozJPEG — Improved JPEG encoder producing smaller files.
- Image Formats — Tooleras blog — Our comparison of web image formats.
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