BMP to JPG Converter
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Supports: BMP
Advanced Options - Our defaults are optimized for the best results. We recommend you keeping the defaults unless you have a specific need.
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Need help?Convert BMP to JPG Online
BMP stores every pixel uncompressed, so a single Windows bitmap can run an order of magnitude larger than it needs to be — often 10 to 20 times the size of the same picture as a JPG. Converting to JPG applies lossy compression that strips data your eye is unlikely to miss, producing a file that is far smaller and that opens in any browser, photo viewer, email client, or upload form. Files are uploaded over an encrypted connection, converted on our servers, and deleted automatically a few hours after conversion — no sign-up, no watermark, never shared or made public.
How to Convert BMP to JPG
- Upload Your BMP File: Drag and drop your bitmap onto the page, or click "+ Add Files" to browse. You can queue several BMPs and convert them in one batch.
- Pick a Quality Preset: Under Image Compression, leave the Quality Preset on "Very High (Recommended)" for near-original results, or drop it to High or Medium to shrink the JPG further when size matters more than fine detail.
- Set a Specific File Size (Optional): Switch Image Compression to "Specific file size" to target an exact output — useful for an upload form or email cap — or use Image resolution to scale the pixel dimensions down.
- Convert and Download: Click "Convert" and save your JPG. No sign-up, no watermark.
BMP vs JPG: What Changes in the Conversion
| Property | BMP (input) | JPG (output) |
|---|---|---|
| Compression | Uncompressed by default (optional RLE) | Lossy, ~10:1 typical |
| Typical file size | Very large | Roughly 1/10 to 1/20 of the BMP |
| Quality | Pixel-exact | Slight, usually invisible loss |
| Transparency | Alpha supported but rarely used (usually opaque) | None |
| Best for | Editing masters, Windows-native pipelines | Web, email, sharing, storage |
| Native origin | Microsoft Windows bitmap | JPEG standard (ISO/IEC 10918-1, 1992) |
Frequently Asked Questions
How much smaller will the JPG be than my BMP?
Because BMP keeps every pixel uncompressed while JPG discards perceptually redundant data, the JPG is commonly one-tenth to one-twentieth the size — an order-of-magnitude drop. In our testing, a 1920x1080 BMP of about 6 MB came out near 350-500 KB as a JPG at the Very High preset, with no loss visible at normal viewing distance.
Will converting to JPG visibly lower the image quality?
At the Very High preset the loss is hard to spot on photographs and most screenshots. JPG's lossy compression targets detail your eye tends to ignore. The exception is hard-edged content — text, line art, or flat-color screenshots — where heavy compression can show faint halos around edges. For those, keep the preset high or consider BMP to PNG instead, which is lossless.
My BMP has a transparent background — what happens to it?
Standard JPG has no alpha channel, so any transparency is flattened. The converter composites transparent areas onto a solid background (white by default) rather than carrying them through. Most BMPs are fully opaque, so this is usually a non-issue; if you need transparency preserved, convert to PNG instead.
Can I convert several BMP files to JPG at once?
Yes. Add multiple bitmaps to the queue and they convert with the same Quality Preset and resolution settings, then download individually. This is handy for a folder of screen captures or scanned bitmaps you want to slim down for the web in one pass.
Are my uploaded BMP files kept private?
Your file is sent over an encrypted (TLS) connection, processed on our servers, and deleted automatically a few hours after conversion. There is no sign-up, no watermark on the output, and files are never shared or made public. If you only need a smaller file without switching formats, the Image Compressor keeps your original format.