How to Convert JPEG to BMP

BMP (Windows Bitmap) stores pixel data in a simple, uncompressed grid, a design dating back to early Windows that prioritizes simplicity over efficiency. Because there's no compression to decode, BMP files open instantly and are easy for low-level software, embedded systems, and certain legacy Windows applications to read directly, which is why some specific tools and workflows still require BMP as an input format rather than JPEG.

Converting JPEG to BMP doesn't recover any quality lost during the original JPEG compression — it simply stores the existing pixel data without compressing it further, which is why file sizes increase substantially, often by 5 to 10 times depending on the image's color complexity.

1. Install Turbo Batch Image Converter Pro on your Windows PC.
2. Open the app and select Batch Mode for multiple files, or Individual Mode for a single JPEG.
3. Drag your JPEG file or folder into the app window, enabling recursive folder scanning if needed.
4. Set the "From" format to JPEG and the "To" format to BMP.
5. Optionally resize the output during the same step if needed.
6. Click Convert. BMP files are written to the output folder, fully offline.

• 100% offline — your images are never uploaded anywhere
• Bulk conversion of entire folders, including sub-folders, in one click
• Produces standard uncompressed BMP files readable by legacy software
• Multi-core processing for fast handling of large batches
• Option to delete original JPEG files automatically after conversion
• No recurring subscription or hidden upload limits

If you only need straightforward format conversion without RAW or HEIC support, Turbo Batch Image Converter Lite covers this exact JPEG-to-BMP conversion in a lighter, more focused app.