BMP to JPG Converter Free
Convert BMP bitmap images to JPG online for free. Reduce massive uncompressed BMP files to compact, web-ready JPEGs up to 99% smaller. Set quality, resize, and batch process up to 20 files at once. No signup required.
Drop your BMP files here
or click to browse — BMP · DIB · up to 20 files free
BMP / DIB · Up to 20 files · Max 200 MB total free
0 BMP file(s) selected
Conversion Options
No account required · Files deleted in 24h
Converting BMP to JPG…
Uploading files
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Conversion Complete!
Your JPG files are ready.
Download output.jpg—
Files
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Input size
JPG
Output format
Pro — 200 files/batch, 2 GB, lossless pipeline, ICC profile embedding
Priority queue · API access · Team workspace
How It Works
Convert BMP to JPG in three simple steps
Upload BMP Files
Drag and drop your BMP or DIB bitmap files onto the upload zone, or click to browse. BMP files are often enormous — a 3000×2000 pixel 24-bit BMP is around 18 MB uncompressed. The free plan handles up to 20 files at a time with a 200 MB total limit.
Choose Quality & Size
Select JPEG quality from 40 (smallest file, noticeable compression artefacts) to 95 (near-lossless visually). Optionally set a maximum output dimension for web or thumbnail use. Quality 85 is the sweet spot: output is visually identical to the source but dramatically smaller.
Download JPEG Images
Your converted JPG files are ready in seconds. Single files download directly; multiple files arrive as a ZIP archive. The resulting JPEGs are universally compatible with every browser, email client, social media platform, and image viewer — unlike raw BMP files.
BMP to JPG Features
Everything you need to convert bitmap images to JPEG
Massive File Size Reduction
BMP is the most inefficient mainstream image format — it stores every pixel at full bit-depth with no compression whatsoever. A typical 24-bit BMP can be compressed to JPEG at quality 85 with 95–99% size reduction. An 18 MB BMP becomes a 300–600 KB JPEG, making it easy to email, upload, or share online.
All BMP Variants Supported
The BMP format has evolved through many versions of Windows. Our converter handles 1-bit monochrome, 4-bit and 8-bit paletted (256-colour), 16-bit high colour, 24-bit true colour, and 32-bit BMP files (with or without alpha channel) as well as the related DIB (Device Independent Bitmap) format used in older Windows software.
Adjustable JPEG Quality
Choose from five quality levels: 40 for the smallest possible file where quality is less critical, 60 for web thumbnails, 75 for general online use, 85 for high-quality sharing (recommended), or 95 for near-lossless archiving. All quality settings use the standard Luma and Chroma quantization tables followed by Huffman entropy coding.
Batch Conversion — 20 Files at Once
Select up to 20 BMP files simultaneously and convert them all in one go. Results download as a neat ZIP archive with the original file names preserved (with a .jpg extension). This is invaluable when dealing with BMP exports from legacy Windows software, screenshot batches, or scanned document archives.
Private & Secure Processing
All file transfers are encrypted with TLS 1.3. Conversion happens in isolated server containers — your BMP files are never visible to other users or third parties. All uploaded and converted files are automatically and permanently purged within 24 hours. No watermarks are added to any converted images, regardless of plan.
Universal Compatibility
JPEG is the universal image format — supported by every web browser, email client, smartphone camera roll, photo printing service, and image editing application since the mid-1990s. BMP, by contrast, is only natively displayed on Windows and is rejected by most web platforms. Converting to JPG makes your images usable everywhere.
Free vs Pro
| Feature | Free | Pro |
|---|---|---|
| Files per batch | 20 | 200 |
| Max total upload size | 200 MB | 2 GB |
| JPEG quality options | 5 presets | 1–100 slider |
| ICC colour profile embedding | — | |
| Lossless intermediate pipeline | — | |
| API access | — | |
| Priority conversion queue | — | |
| Watermark | None | None |
Frequently Asked Questions
BMP (Bitmap) is an uncompressed raster format developed by Microsoft. Every pixel is stored at full bit-depth without any compression — a 24-bit BMP uses exactly 3 bytes per pixel. A 1920×1080 24-bit BMP file is therefore 1920 × 1080 × 3 = 6,220,800 bytes, or roughly 6 MB. By contrast, the same image as a JPEG at quality 85 is typically 400–800 KB. BMP files were designed for in-memory display buffers in early Windows, not for storage or transmission.
JPEG uses lossy compression, so some image data is discarded. However, at quality 85 or higher, the difference is invisible to the human eye for photographic content. The visible quality loss only becomes apparent at very high zoom levels or with quality settings below 60. For screenshots, diagrams, text, or images with sharp edges and flat colours, use BMP to PNG instead — PNG is lossless and handles these types of images much better than JPEG.
Yes. The BMP format has been used in Windows since the 1980s and encompasses many sub-variants: BITMAPCOREHEADER (OS/2 v1), BITMAPINFOHEADER (Windows 3.x and later), BITMAPV4HEADER, and BITMAPV5HEADER. Our converter decodes all common variants including 1-bit, 4-bit, 8-bit paletted, 16-bit, 24-bit, and 32-bit formats. The rarely-encountered OS/2 BMP variant and run-length encoded (RLE4, RLE8) sub-types are also supported.
No. JPEG does not support transparency or an alpha channel. Transparent (or semi-transparent) pixels in a 32-bit BMP will be composited against a white background before JPEG encoding. If you need to preserve transparency, convert to PNG instead — our BMP to PNG tool retains the full alpha channel from 32-bit BMP files.
Yes, absolutely. Windows Paint saves files as 24-bit BMP by default (though newer versions of Paint also offer PNG and JPEG). If you have artwork, screenshots, or diagrams saved as BMP from Paint, simply upload them here and they will be converted to JPEG in seconds. Note that Paint's own "Save as JPEG" option is equivalent — the advantage of using our tool is batch conversion of multiple BMPs at once.
Yes. All uploads are encrypted with TLS 1.3. Files are processed in isolated containers and are permanently deleted within 24 hours of conversion. No watermarks are added. We never analyse, share, or retain your image content. No account or login is required.