Image
JPG to PNG Converter
Move JPEG photos into PNG for lossless editing - fully on-device. Processing stays on your device — no upload, no account.
How to use JPG to PNG Converter
- Drop a JPG or JPEG file into the zone.
- Preview the photo, then convert to PNG.
- Download the PNG for editing or compositing.
Why use this free jpg to png tool?
- All processing happens locally in your browser. Your files are never uploaded to a server.
- Lossless PNG container for further edits.
- Native canvas pipeline - lightweight and fast.
- Works with common JPEG MIME types and extensions.
Technical details
JPEG discards information during compression. Converting to PNG does not restore lost detail; it freezes the current pixels in a lossless container so subsequent edits (overlays, UI mockups) avoid another JPEG generation loss.
We decode with the browser Image element, draw to canvas, and export image/png. Orientation depends on how the browser applies EXIF; if a phone photo appears rotated, rotate in an editor or re-export from the camera roll first.
PNG output is often larger than the source JPEG. That is expected. If you only need a smaller web asset, prefer PNG to WebP or Image Resizer instead.
No network upload occurs - useful for client-confidential photos and screenshots.
JPG to PNG Converter FAQ
Does JPG→PNG improve quality?
No. It preserves current pixels losslessly going forward; it cannot recover detail JPEG already discarded.
Are files uploaded?
No. All processing happens locally in your browser. Your files are never uploaded to a server.
Can I add transparency?
This tool keeps the opaque JPEG raster. Remove backgrounds in an editor, then save PNG.
What about progressive JPEGs?
Browsers decode them normally; the exported PNG is a standard non-progressive raster.
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