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Convert JPG to PNG in your browser

Convert any JPG to a lossless PNG in your browser. Useful for editing downstream — no quality loss on subsequent re-saves.

4.8· 59 votes
An image converter re-encodes an image from one format to another — PNG, JPG, WebP, GIF and more — without downloading desktop software. StuHub renders through the Canvas API so input can be any format the browser decodes, and output can be any of the standard web formats.
Your file never leaves this browser. Everything runs on your device — no uploads, no server storage, no retention.How it works →

Convert JPG to PNG in your browser

Use JPG-to-PNG when you plan to edit the image further (crop, rotate, colour-grade) and don't want each save to accumulate JPG compression artefacts. PNG is lossless — every re-save of a PNG produces byte-identical output. The file will be larger than the JPG (often 3–5×), but that's the trade-off for lossless editing. Runs in your browser via the Canvas API.

Drop an image
PNG, JPG, WEBP, GIF, BMP — up to 50 MB
More image converter presets

What is Convert JPG to PNG in your browser?

Convert images between PNG, JPG, and WebP in a click. Useful when a site or app insists on a specific format, when you want WebP for smaller downloads, or when you need PNG for transparent-background logos. The tool renders through Canvas so colour profiles are preserved as much as the source allows. Input can be any format modern browsers decode — including GIF, BMP, and AVIF in many browsers.

How do I use Convert JPG to PNG in your browser?

  1. Drop any image onto the upload zone.
  2. Choose the target format: PNG, JPG, or WebP.
  3. For JPG/WebP, optionally adjust quality (90% is a safe default).
  4. Click Download to save the converted file.

Convert JPG to PNG in your browser by the numbers

Formats in
PNG, JPG, WebP, GIF, BMP, AVIF, HEIC*
Formats out
PNG, JPG, WebP
Max input
50 MB
Quality control
JPG + WebP: 1–100 slider
HEIC note
Safari only (browser limitation)

Common use cases for Convert JPG to PNG in your browser

  • Converting an HEIC photo from an iPhone to JPG for a Windows upload.
  • Swapping PNGs to WebP to save bandwidth on a site deploy.
  • Preparing a transparent logo in PNG after receiving it as JPG.
  • Bulk-translating camera AVIFs to JPG for a legacy editor.
  • Downloading a favicon as ICO after designing it as PNG.

Common pitfalls and how to avoid them

  • Transparency disappeared after JPGJPG has no alpha channel. Use PNG or WebP if transparency matters.
  • Output is huge after PNG → PNGPNG is lossless; there is nothing to recompress. Try WebP lossless or skip the conversion.
  • HEIC does not decodeSafari supports HEIC natively; Chromium does not. In Chrome/Firefox, convert the HEIC with a desktop tool first.

When should I use Convert JPG to PNG in your browser?

Choose Image Converter for format switches. If you also need smaller file size, Image Compressor exposes a quality slider with a split-view preview. To change resolution at the same time as format, Image Resizer handles both in one pass.

Frequently asked
Why is my PNG so much bigger?

JPG is lossy; PNG is lossless. Photographic content encoded losslessly just is larger. If size matters, WebP lossless is a middle ground.

Will this restore lost JPG detail?

No. The JPG's compression artefacts are baked in. You're locking in the current state lossless, not recovering quality.

Is my file uploaded anywhere?

No. Everything runs in your browser — the file never leaves your device, and there is no server component for this tool.

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