Bulk BMP to PNM Converter Online — Free HD Quality
Drag and drop your multiple BMP files into this free online BMP to PNM converter (.bmp to .pnm), and click the Convert button to bulk convert them to PNM format in HD quality. Use the quality slider to fine-tune your PNM output, then download your converted files one by one or as a single ZIP — your original BMP files are removed from our servers right after.
To:
85%
Drop images here or click to browse
PNG, JPG, WebP, GIF, HEIC, RAW, PSD, SVG and more
Max 100MB per file
BMP vs PNM — File Format Comparison
| Feature | BMP | PNM |
|---|---|---|
| File Extension | .bmp | .pnm |
| MIME Type | image/bmp | image/x-portable-anymap |
| Compression Type | Lossless | Lossless |
| Transparency Support | No | No |
| Animation Support | No | No |
| Metadata Support | Yes | Yes |
What Is BMP Format?
Windows Bitmap format, uncompressed raster images.
- Compression: Lossless
- Transparency: Not supported
- Animation: Not supported
What Is PNM Format?
Portable Anymap format, generic Netpbm format.
- Compression: Lossless
- Transparency: Not supported
- Animation: Not supported
Related Converters
- Change 3GA files to PPM
- Handle many AIFC to AAC at once
- Change AIFF to JXL
- CRW to PDF - free, no signup
- Free online HEIC to XBM tool
- Export MRW as PNG
- Free OGG to JP2 - no account needed
- Free PCD to CUR - no account needed
- Switch PCX to TIFF format
- Batch process PS to TGA
- Transform SRF to PNM
- Best WebP to JPG converter online
- Free WMA to JXL - no account needed
- Batch WMZ to JPG converter
- More BMP conversions
- See all PNM conversions
- Image conversion tools
- ConvertFlash converter tools