Convert JPEG to BMP — free, private, in your browser
Decoded with MozJPEG, encoded with ImageMagick WASM — entirely on your device. No upload, no queue, no watermark.
Why convert JPEG to BMP?
Convert JPEG (the universal photo format. small files, opens everywhere, no transparency) to BMP. Drop files below: decoding and encoding run entirely in your browser via WebAssembly, so images are never uploaded to a server.
How to convert JPEG to BMP
- 1Drop your JPEG files onto the tool above (or click to browse, or paste from the clipboard). Batches are fine.
- 2BMP is pre-selected as the output. BMP 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.
JPEG vs BMP
| JPEG | BMP | |
|---|---|---|
| Introduced | 1992 (Joint Photographic Experts Group) | 1990 (Microsoft) |
| Compression | Lossy | Lossless |
| Transparency | No | No |
| Animation | No | No |
| HDR / wide gamut | No | No |
| Browser display | All browsers | All browsers |
| Typical use | Photographs on the web | Legacy Windows applications |
About JPEG full guide →
The universal photo format. Small files, opens everywhere, no transparency.
About BMP full guide →
Uncompressed Windows bitmaps. Huge files — almost always worth converting.
Frequently asked questions
Is it safe to convert JPEG to BMP 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, ImageMagick compiled to WebAssembly 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 JPEG to BMP lose quality?+
No. BMP is lossless: every pixel of the decoded JPEG 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 BMP back to JPEG?+
Yes — use the BMP to JPEG converter, or just change the output format dropdown after dropping files.