BMP to JPG Converter
Convert BMP files (released 1986 (Microsoft), None (uncompressed) or RLE) to JPEG (Lossy, typically Small — typically 50–80% lighter than PNG for photos). Runs in your browser — no upload, no signup.
Based on 12,431+ conversions delivered
Every BMP to JPG conversion here runs inside your browser — your files are read, converted, and handed back without ever being uploaded to a server. That matters when the images are personal photos, client work, or anything you'd rather not hand to a cloud service. BMP is None (uncompressed) or RLE and suits Legacy Windows tools, embedded devices, industrial scanners; JPEG is Lossy and fits Photographs, hero images, anything where small file matters more than transparency better. In our sample set, BMP files came out about 87% smaller as JPG. Drop one file or a whole batch — the conversion is identical either way and nothing leaves your device. Below you'll find how the two formats compare and the details worth checking before you convert at scale.
Looking to programmatically convert BMP to JPG?
Same engine, available as a JSON API. Drop a file or URL via REST and get the converted output back — no browser, no UI, no rate limits on paid tiers.
Sub-second response on common pairs
Webhook delivery for batch jobs
100+ format pairs supported
BMP vs JPG — side-by-side
The numbers and capabilities at a glance, so you know what you're trading.
BMP
- Year released
- 1986 (Microsoft)
- Compression
- None (uncompressed) or RLE
- Transparency
- Limited (32-bit BMP only)
- Animation
- No
- Browser support
- Universal — read by every browser since the 90s
- Best for
- Legacy Windows tools, embedded devices, industrial scanners
JPEG
- Year released
- 1992
- Compression
- Lossy
- Transparency
- No
- Animation
- No
- Browser support
- Universal — older than the web itself
- Best for
- Photographs, hero images, anything where small file matters more than transparency
Real BMP → JPG file sizes
We ran a fixed set of sample images through this exact converter so you can see the typical size impact before converting your own files.
| Sample image | BMP size | JPG size | Change |
|---|---|---|---|
| Photo | 192.1 KB | 79.2 KB | -59% smaller |
| Screenshot / UI | 256.1 KB | 6.0 KB | -98% smaller |
| Logo / transparency | 256.1 KB | 9.1 KB | -96% smaller |
Measured on a 256×256 sample set with this converter on 2026-05-28. Real-world files vary with resolution, colour and content.
Heads up before converting BMP → JPG
What changes — and what your conversion will cost — based on how BMP and JPEG differ.
Transparency will be flattened
BMP carries an alpha channel; JPEG does not. Every transparent pixel in your source becomes solid white (or whatever background colour your renderer falls back to) in the JPEG output. If your image relies on transparency for layering — UI screenshots with rounded corners, logos meant to sit on coloured backgrounds, sticker assets — pick a target that supports alpha (PNG, WebP, AVIF, GIF, ICO, TIFF) instead.
Re-encoding loses pixel-perfect fidelity
BMP is a lossless source — every pixel is preserved exactly. JPEG encodes lossily by default, so the conversion introduces compression artifacts you can't undo by converting back. The visual difference is usually imperceptible at typical viewing distance, but if BMP is your master copy, keep it: convert to JPEG for delivery, not as an archive.
Chroma subsampling kicks in
BMP stores full-resolution colour channels. JPEG's default lossy mode subsamples chroma (typically 4:2:0) — half the colour information thrown away to save bytes. The effect is invisible on photos but visible on sharp text, fine lines, and saturated edges (chromatic aberration around text, halos on logos). For UI screenshots and graphic content, prefer a target without chroma subsampling (PNG, WebP-lossless, AVIF 4:4:4) instead.
Best practices for BMP → JPG
Concrete settings to pick before you convert BMP to JPEG.
- Always preview the JPEG output before bulk-downloading — colour shifts, transparency surprises, and quality artifacts show up in the preview before they ship.
- Strip EXIF metadata if file size or privacy matters — camera GPS coordinates, timestamps, and serial numbers travel inside the image bytes by default.
- For photographic content, target a JPEG quality between 80 and 85 — that's the sweet spot where most encoders stop showing visible artifacts and the file size curve flattens.
When NOT to convert BMP → JPG
Honest cases where this conversion is the wrong call — pick a different format or keep your BMP source.
Skip if this is your archival source
BMP keeps every pixel intact; JPEG doesn't. Each round-trip through a lossy format compounds compression artifacts. If this file is the canonical source you might re-export from later (book scan, asset master, before/after baseline), keep the BMP and convert copies on demand instead of replacing the original.
The importance of a good image conversion
Why getting BMP → JPG right matters more than you think.
Frequently asked
The basics everyone asks before dropping a file.
Convert BMP to other formats