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Compress BMP

Reduce the massive file size of BMP bitmap images in your browser. Convert to optimized JPEG with no upload, no data collection, instant results.

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压缩参数设置

1 MB

处理结果预览

Upload an image to start compressing

BMP (Bitmap) files are uncompressed by design, often resulting in file sizes 10-50x larger than equivalent JPG or PNG images. Our BMP compressor uses the browser Canvas API to re-encode your bitmap as an optimized JPEG — reducing a 10MB BMP to under 500KB without perceptible visual quality loss.

常见问题解答

压缩 图片?
✓ 70-80% quality = 60-80% smaller file size with zero visible artifacts.
Lossy vs Lossless?
Lossy compression (JPG, WebP) permanently removes some image data to achieve smaller files. Lossless compression (PNG) reorganizes data without any quality loss. For photos, lossy is usually fine; for logos with text, use lossless.
Batch 压缩?
Currently you compress one image at a time to give you full control over quality preview. The entire process takes under 5 seconds per image.
Dimensions change after 压缩?
✓ 压缩 only reduces byte weight; pixel dimensions remain identical.

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