Convert JPG to PNG
Quietly. In your browser. No upload.
Drop your .jpg file
or click to browse · max 50MB
or paste with ⌘V
Converting JPG to PNG is the right move when you need a lossless copy of an image — for further editing, for compositing on top of another image, or because a tool you're handing the file to (a printer, a design app, a stock photo platform) requires a lossless format. The JPG you start from is already lossy, so the PNG can't recover detail that wasn't in the JPG to begin with — but every subsequent edit will be lossless from this point on.
When you'd use it
Stop generation loss
Each save of a JPG re-encodes and discards a little more detail. Converting once to PNG and continuing edits there means no further degradation, no matter how many times you save.
Edit with transparency
PNG supports an alpha channel. If you plan to remove a background or add transparency, you need PNG (or a format like WebP) — JPG simply can't represent transparent pixels.
Submit to platforms that require PNG
Some printers, app icon stores, and stock platforms reject JPG outright. Converting first avoids the back-and-forth.
How it works
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Your file never leaves the browser.
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Conversion runs locally via WebAssembly and Canvas.
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Download. No account, no history.
Technical notes
PNG files are larger than the JPG they came from — usually 3–8× larger for photographic content, sometimes more. That's the tradeoff for the lossless guarantee. Note that converting JPG → PNG does not reverse JPG's compression artifacts; if your JPG has visible blocking or ringing, the PNG will preserve those artifacts exactly. PNG keeps the alpha channel field even when the source has none, so the converted file is technically capable of transparency even if the input was opaque.
Frequently asked
What happens to my JPG files?
Nothing leaves your browser. The conversion runs locally on your device using WebAssembly and the Canvas API. No file is uploaded to a server — including ours.
Is the converted PNG identical to the original?
PNG is a lossless format. Pixel data round-trips exactly when the input is also lossless.
Is there a file size limit?
There is no hard cap, but very large files (hundreds of MB) may be slow on older devices because everything happens in your browser's memory.
Do you collect data on my file or my use?
Your file is invisible to us — it never leaves your browser. For aggregate page-view counts we use Cloudflare's server-side edge logs (no JavaScript beacon runs in your browser). We display Google AdSense ads on conversion result pages; the AdSense script loads on every page and may set advertising cookies after you accept the consent banner (Google Consent Mode v2 asks first). The ads see the page URL and standard browsing signals — they never see your file, because the file never leaves your device.
Will the PNG look better than the JPG?
No — the PNG will look identical to the JPG, because every pixel is copied byte-for-byte. The benefit is that further edits won't compound the JPG's existing quality loss.
Should I always convert to PNG before editing?
For one or two edits, no — modern photo editors are smart about re-encoding. For long editing sessions with many saves, or when you'll hand the file to another tool, converting to PNG (or a layered format like PSD) protects the image from generational quality loss.