Compress BMP Online
Free, instant, and private. Up to 60% smaller files — no upload required.
Drop images here or click to browse
PNG, JPG, WebP, GIF, BMP, HEIC
What is BMP compression?
BMP compression reduces the file size of a BMP file while keeping it as visually close to the original as possible. Instead of uploading files to a remote server and waiting for processing, Pixvert's BMP compressor runs the entire operation locally in your browser using the Canvas API, so BMP files never leave your device.
BMP stores pixels with no compression at all, so files are routinely 10-20 times larger than a JPG or PNG of the same image — compressing a BMP usually means converting it to a modern format that keeps the same visual result in a fraction of the size.
BMP is an uncompressed format — files are often 10–20× larger than necessary. Compressing BMP exports a smaller file in the same visual quality, saving significant disk space and transfer time. Whether you're preparing files for a website, an email, or cloud storage, compressing BMP images first means faster uploads, less bandwidth used, and quicker load times for anyone who opens them.
How to compress BMP images online
- 1
Upload your files — drop your BMP files into the box above, or click to browse — batch uploads are supported
- 2
Click Compress All — compression runs instantly in your browser, no server round-trip involved
- 3
Compare the result — check the new file size next to the original before downloading
- 4
Download — save files individually or grab the whole batch at once as a ZIP
When to compress BMP files
Faster websites
Smaller BMP files mean quicker page loads, which improves both user experience and search ranking.
Email attachments
Fit photos under attachment size limits without switching to a file-sharing link.
Storage savings
Free up space on your device or cloud drive by shrinking BMP files you no longer need at full resolution.
Faster sharing
Send files over messaging apps or upload them to forms and marketplaces that enforce size limits.
Why use Pixvert to compress BMP?
- ✓100% local processing: compression happens entirely in your browser — files are never uploaded anywhere
- ✓Batch support: compress multiple files in one pass and download them together as a ZIP
- ✓No signup required: use the tool immediately without an account or email
- ✓Free, with no hidden limits: no watermarks, no forced quality caps
Frequently Asked Questions
Why are BMP files so much larger than JPG?
BMP stores every pixel with no compression algorithm at all, while JPG and PNG both use techniques to discard or re-encode redundant data.
Will compressing a BMP change its format?
The tool keeps the BMP format by default. For maximum size reduction, consider converting to JPG or WebP instead.
Is it safe to compress my images here?
Yes. Everything happens locally in your browser using the Canvas API — your files are never uploaded to a server.
Is there a file size limit?
There is no hard limit set by Pixvert, but very large files depend on your device’s available memory to process smoothly.
Can I compress multiple files at once?
Yes, drop several files at once and click Compress All — every file is processed and can be downloaded individually or as a ZIP.
Can I use the compressed images commercially?
Yes, Pixvert only reduces file size — it does not alter your rights over the image or add any watermark.