Convert PNG to QOI — free, private, in your browser
Decoded with OxiPNG, encoded with qoi — entirely on your device. No upload, no queue, no watermark.
Why convert PNG to QOI?
Convert PNG (lossless with full transparency. the standard for screenshots, logos and ui graphics) to QOI — the conversion can preserve every pixel, and transparency carries over. Drop files below: decoding and encoding run entirely in your browser via WebAssembly, so images are never uploaded to a server.
How to convert PNG to QOI
- 1Drop your PNG files onto the tool above (or click to browse, or paste from the clipboard). Batches are fine.
- 2QOI is pre-selected as the output. QOI is lossless, so there is no quality to lose. Optionally cap the maximum dimension to also downscale.
- 3Each file converts in your browser and shows its new size. Download files individually or grab everything as a ZIP.
PNG vs QOI
| PNG | QOI | |
|---|---|---|
| Introduced | 1996 (PNG Development Group (W3C)) | 2021 (Dominic Szablewski) |
| Compression | Lossless | Lossless |
| Transparency | Yes | Yes |
| Animation | No | No |
| HDR / wide gamut | No | No |
| Browser display | All browsers | Not displayable |
| Typical use | Screenshots | Game asset pipelines |
About PNG full guide →
Lossless with full transparency. The standard for screenshots, logos and UI graphics.
About QOI full guide →
A tiny, blazing-fast lossless format loved by game developers.
Frequently asked questions
Is it safe to convert PNG to QOI online?+
With EditItAll, your files are never uploaded: decoding and encoding run inside your browser using WebAssembly (Squoosh-grade codecs (MozJPEG, libwebp, libavif, libjxl, OxiPNG) to decode, Squoosh-grade codecs (MozJPEG, libwebp, libavif, libjxl, OxiPNG) to encode). The images stay on your device from start to finish, and the whole thing works offline once the page has loaded.
Will converting PNG to QOI lose quality?+
No. QOI is lossless: every pixel of the decoded PNG is preserved exactly.
Is there a file size or count limit?+
No hard limits and no accounts — processing uses your own device's memory and CPU, so very large images are only constrained by your browser (multi-hundred-megapixel images may fail on low-memory devices). Batch as many files as you like; they are processed in sequence.
Can I convert QOI back to PNG?+
Yes — use the QOI to PNG converter, or just change the output format dropdown after dropping files.