How it works
- Drop your files in the zone above (or click it, or paste with Ctrl+V).
- They convert instantly, right in your browser — nothing is uploaded.
- Adjust quality or max width if needed; files reconvert automatically.
- Download files one by one, or everything at once as a ZIP.
About the formats
BMP
BMP is the uncompressed Windows bitmap format from the early 90s. Files are enormous — often 20–50× larger than an equivalent JPG — with no visual benefit for photos, so converting is almost always worthwhile.
JPG
JPG (JPEG) is the most widely supported image format ever made — every camera, phone, program and website accepts it. It compresses photos efficiently but doesn't support transparency, and each re-save at low quality degrades the image a little more.
What this conversion actually gives
Measured with the converter on this page, on a 2016 × 1512 px test image: the BMP file weighs 8.7 MB.
| Setting | Result | Change |
|---|---|---|
| Quality 85 % (default) | 580 KB | −94 % |
| Quality 60 % | 265 KB | −97 % |
| Max width 1600 px, quality 85 % | 335 KB | −96 % |
The drop is dramatic: −94 %. Turning a BMP into a JPG is the right move whenever file size matters.
For an email attachment, quality 60 % brings it down to 265 KB. Capping the width at 1600 px gives 335 KB — plenty for any screen.
- BMP is lossless, JPG is not: the conversion is one-way, so keep your original if you still need to edit it.
Your own files will differ — a photo full of detail compresses less well than a flat graphic. These figures come from one reproducible test image, not from an average.
Frequently asked questions
How big will my JPG file be?
On our 2016 × 1512 px test image, a BMP of 8.7 MB comes out at 580 KB at the default quality (−94 %). Lower the quality slider or set a maximum width and the figure drops further — the page shows the new size as soon as the file is reconverted.
How much smaller will my BMP get?
Typically 95–98% smaller as JPG or WebP, and 50–80% smaller even as lossless PNG, because BMP applies no compression at all.
Does converting to JPG reduce image quality?
JPG uses lossy compression, but at a high quality setting the difference is invisible to the eye — and the file gets much smaller, ideal for photos and sharing. Pixloc lets you set the quality with a slider and adds a white background, since JPG has no transparency.
Are my files really private?
Yes. The conversion runs entirely in your browser using its built-in image engine. Your files are never uploaded, stored or seen by any server — you can even disconnect from the internet after the page loads and keep converting.
Is this free? Is there a file limit?
Completely free, no account, no watermark. Convert as many files as you like, up to 200 MB each — the only limit is your device's memory.
Can I convert many files at once?
Yes — drop a whole batch at once. Each file converts independently and you can grab everything in a single ZIP when done.