JPEG to BMP

Upload a JPEG file and download it as BMP. Free to start.

Drop files here, or press Enter to choose them. Up to 50 MB per file.
Drop a JPEG file hereFree · up to 50 MB · 10 operations in total without an account · or paste with Ctrl+V
  • Sent over HTTPS · link expires in 24 h

How it works

  1. Step 1:

    Drop the JPEG file on the orange block above, or press “Choose JPEG”.

  2. Step 2:

    Press “Convert to BMP”. The block shows the progress while the server converts the file.

  3. Step 3:

    Press “Download” to save the BMP file. On Free the link works for 24 hours.

How JPEG to BMP conversion works

JPEG Image (JPEG) uses lossy DCT compression that permanently discards fine pixel detail to achieve small file sizes, ideal for photographs. Bitmap Image (BMP) stores uncompressed pixel data in a simple row-by-row grid, resulting in large file sizes but zero quality loss. This conversion changes the file's encoding, compression method, and supported feature set. Colour profiles and orientation metadata are preserved in the output. The result is a standard BMP file readable by any compatible application. 1converter handles JPEG-to-BMP conversion server-side: files are uploaded over HTTPS, processed on isolated cloud infrastructure, and the converted output is available for download for 24 hours before automatic deletion. No account is required for standard conversions.

Sources and specifications

Quality levels for JPEG → BMP

LevelFile sizeSpeed
Low qualitySmallest file, basic qualityVery smallVery fast
Medium qualityRecommendedBalanced size and qualityMediumFast
High qualityLarger file, great qualityLargeModerate
Maximum qualityLargest file, best possible qualityVery largeSlow

Image Tip: For photos, Medium quality offers the best balance. For graphics with text or sharp edges, use High or Maximum quality to preserve clarity.

When to convert

What the BMP file is good for and why people convert to it.

  • BMP supports straightforward pixel-based workflows without JPEG’s lossy re-compression artifacts
  • Better choice for tools that expect bitmap headers and raw pixel arrays
  • Exporting images for legacy Windows/embedded tools that require BMP input
  • Preparing assets for bitmap-based rendering engines or OCR pipelines that prefer BMP

Where your file goes

  • It travels to our server over an encrypted HTTPS connection and is converted there.
  • The BMP file comes back as a private link. It stops working after 24 hours on Free and 7 days on paid plans, and then the files are deleted.
  • Want the file to stay on your device? Private Mode converts images right in the browser. Open Private Mode

Questions and answers

What people ask before converting JPEG to BMP.

Ask supportAll questions
Does converting JPEG to BMP improve image quality?
No—JPEG is already lossy, so BMP cannot restore detail lost during JPEG compression. The BMP will reflect the decoded JPEG pixels.
Why is the BMP file size usually larger than the JPEG?
JPEG uses lossy compression, while BMP is commonly stored uncompressed or with simple bitmap encoding, so it typically produces much larger files for the same dimensions.
Is a BMP always uncompressed when converting from JPEG?
Not necessarily; BMP can be stored with different encodings (e.g., uncompressed or RLE variants). The tool’s BMP settings determine the exact storage method.
Will transparency be preserved from JPEG to BMP?
JPEG has no alpha channel, so transparency cannot be preserved. BMP output will be opaque unless the tool explicitly supports an alpha-aware BMP mode (not from JPEG source).

Many files at once? Starter converts 5 at a time, 100 a day.

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