JPG to BMP

Upload a JPG 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 JPG 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 JPG file on the orange block above, or press “Choose JPG”.

  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 JPG to BMP conversion works

JPG is an image format: it uses lossy DCT compression that permanently discards fine pixel detail to achieve small file sizes, ideal for photographs. BMP is an image format that 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. Converting between these two formats is common when the source application does not support BMP natively or when the target platform only accepts BMP. 1converter processes this conversion server-side using open-source tools. Files are transferred over HTTPS, converted on secure cloud servers, and returned through a private download link that expires after 24 hours on Free.

Sources and specifications

Quality levels for JPG → 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 stores pixels without JPEG compression artifacts
  • Better compatibility with legacy Windows graphics workflows
  • Preparing images for older Windows-only bitmap pipelines
  • Feeding BMP-only software that rejects JPEG input

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 JPG to BMP.

Ask supportAll questions
Does JPG to BMP improve image quality?
BMP is typically uncompressed, but converting from JPG cannot restore details lost during the original JPEG lossy compression. It mainly removes further compression and stores the existing pixels in BMP form.
Why does the BMP file usually get much larger than the JPG?
JPEG uses lossy compression to reduce size, while BMP commonly stores pixel data without compression (or with optional simple compression). As a result, BMP files are often significantly larger for the same dimensions.
Is the BMP editable like a photo file?
BMP is a raster bitmap format and is broadly editable for pixel-based workflows, but it’s not the same as an editable layered format. Many editors treat BMP as a flattened image and preserve pixel values as stored.
Will transparency be preserved from JPG to BMP?
No—JPG does not support an alpha (transparency) channel, so the BMP output will be opaque. Any transparency would need to be added separately after conversion using an editor that supports alpha.

More about this pair

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

See plans