Compress BMP Images

Reduce BMP file size by resizing dimensions and optionally reducing color depth. Output stays BMP — everything runs locally in your browser.

Drag & Drop BMP files here

or

Pick one image or many — the compressor handles batches.

BMP only · Max file size: 100MB

🔒 100% processed on your device ⚡ No upload, no network calls 🗑️ Files are never stored on a server
Options
▼
Color Depth
Resize (optional)
100%
10% 50% 100%
Custom Dimensions
Preset Sizes
Thumbnail
150 × 150
Small
320 × 240
Medium
640 × 480
HD 720p
1280 × 720
Full HD
1920 × 1080
Instagram Square
1080 × 1080
Instagram Portrait
1080 × 1350
Twitter Header
1500 × 500
Facebook Cover
820 × 312
YouTube Thumbnail
1280 × 720

BMP is uncompressed by design. Real savings come from smaller dimensions or fewer colors. For maximum compression, consider converting to PNG or WebP instead.

ℹ️ BMP output is uncompressed (BI_RGB). File size depends entirely on dimensions and color depth — there is no quality setting to trade off.

Your images are processed locally in your browser. No files are uploaded or stored on our servers.