JPG to PNG
Convert JPG to PNG in your browser. Free, private, no upload. Get a lossless copy for editing or tools that require PNG.
About this tool
Some tools, from design software to government portals, insist on PNG. This converter turns any JPG into a PNG right in your browser, with no upload and no quality loss in the conversion itself.
One honest note: converting JPG to PNG cannot recover quality the JPG already lost, and the PNG will be larger. What it gives you is a lossless container, so any further editing will not degrade the image more.
Common uses
- Satisfy upload forms and tools that only accept PNG
- Create a working copy that will not degrade with repeated edits and saves
- Prepare a JPG for a pipeline or script that expects PNG input
Automate via API
The same conversion is available as a REST endpoint for scripts, pipelines, and backends. POST the file, get the converted file back:
curl -X POST https://formatably.com/api/v1/tools/jpg-to-png \ -H "X-Api-Key: YOUR_API_KEY" \ --data-binary @photo.jpg \ -o photo.png
Direct requests accept up to 4 MB; the large-file flow handles up to 100 MB. Both are covered in the API documentation · Get an API key
JPG notes
JPG (JPEG) is the universal photo format: every camera, phone, website, printer, and government upload form accepts it. It compresses photos well but does not support transparency, and each re-save loses a little quality.
- JPG has no transparency; transparent areas are filled with white during conversion.
- JPG is lossy: converting into it trades a small amount of quality for compatibility and size.
PNG notes
PNG is the lossless workhorse: screenshots, logos, UI graphics, and anything needing transparency. Every device and program on earth opens it. The tradeoff is size: photos stored as PNG are several times larger than JPEG.
- PNG is lossless, so converting into PNG never loses quality, but converting a photo to PNG can triple its size.
- Transparency is preserved in PNG; JPG has no transparency at all.
Frequently asked questions
Will JPG to PNG improve image quality?
No; nothing can restore detail the JPG compression already discarded. The PNG is a pixel-exact copy of the decoded JPG. The benefit is that from now on, edits and re-saves are lossless.
Why is the PNG bigger than the JPG?
JPG discards detail to compress; PNG stores every pixel exactly. A 1 MB photo commonly becomes a 4-8 MB PNG. That is the price of losslessness, and it is only worth paying when you plan to edit the image or a tool demands PNG.
Are my files uploaded to a server?
No. The conversion runs entirely in your browser using WebAssembly and the canvas API; your files never leave your device. There are no ads and no trackers on tool pages. You can verify this yourself: open your browser's developer tools, watch the Network tab while converting, and you will see no upload requests. It even works offline once the page has loaded.
Is there a file size limit?
In the browser there is no hard limit; you are bounded only by your device's memory, and files of a few hundred megabytes are usually fine. The REST API accepts files up to 4 MB in a direct request, or up to 100 MB using the large-file upload flow described in the API docs.
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