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DataShift Tools

JPG to PNG Converter

Convert JPG or JPEG to lossless PNG without uploading it. A fast, private JPG to PNG converter — no watermark, no registration, batch supported.

Drag & drop files here

or click to browse — multiple files supported

All files are processed only in your browser and are never uploaded to any server.

Quick answer

Convert JPG to lossless PNG free in your browser — no upload, no watermark and no registration, and you can batch-convert multiple files. PNG keeps the quality your JPG already has and is a cleaner starting point for repeated edits, but detail lost to earlier JPG compression cannot be restored.

Accepted input
JPG, JPEG
Output format
PNG · lossless (oxipng)
Upload required
None · files never leave your device
Watermark
None
Batch conversion
Yes · drop multiple files at once
File size limit
None · limited by device memory
Price
Free · no registration
Works on
Any modern browser · Windows, macOS, Linux, iOS, Android

How to use this JPG to PNG Converter

  1. Drag and drop your JPG file(s), or click to browse.
  2. Click "Convert" and watch the progress bar.
  3. Download the converted PNG file(s) instantly.

Should you convert JPG to PNG?

JPG is lossy: every time you open and re-save it, a little more quality is discarded. Converting once to lossless PNG gives you a stable file for repeated editing — crop, retouch, annotate — without piling on new compression artifacts. It is also the format to choose when you later need transparency.

Converting here is a local, lossless step with the Canvas API and a WebAssembly PNG encoder, so nothing is uploaded. Just remember PNG cannot recover detail the original JPG already lost, and it will normally be the bigger file.

Frequently Asked Questions

Does converting JPG to PNG improve quality?

It preserves the current quality without adding new compression artifacts, but it cannot restore detail lost in the original JPG.

Are my images uploaded anywhere?

No. Everything is processed locally in your browser.

When should I convert JPG to PNG?

Convert to PNG when you will edit the image repeatedly, need transparency, or want to avoid adding new JPEG artifacts with every save. Keep in mind the PNG will usually be larger than the JPG.

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