Step 1: Supply your JPEG files using the button above or by haul and lay.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Get your converted BMP files.
JPEG to BMP Conversion FAQ
What does the JPEG to BMP converter do?
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JPEG is already lossy-compressed, so converting to BMP does not magically restore detail — it just stores the existing pixels without further loss. BMP is a good choice when you plan to edit the image further and want each save to preserve quality.
Will background and colour fidelity be preserved?
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Neither JPEG nor BMP carries an alpha channel, so the background renders as a solid colour and pixel colour data is preserved end-to-end.
Is the JPEG to BMP conversion reversible?
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You can convert the BMP back to JPEG on this site. If either format involved is lossy, the round-trip is not bit-perfect even though it is visually or audibly close.
Does converting JPEG to BMP restore the quality that was lost?
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No. The compression artefacts already baked into the JPEG are ordinary pixel data now, and BMP preserves them perfectly rather than removing them. The file usually gets larger, sometimes several times larger. It is still worth doing before editing, because further edits will not stack a second generation of loss on top. BMP needs no decoder library at all, so it remains the safe interchange format for embedded systems and legacy Windows tooling. JPEG shares every JPG limitation — no alpha, generational loss on re-save — with the added nuisance of software that treats the two extensions differently.
Will my CMYK colour survive the conversion to BMP?
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It is converted to sRGB, because BMP has no CMYK mode. For screen use that is exactly what you want. For commercial print it is not — the gamut shift changes how saturated colours reproduce on press, so send the printer the original JPEG rather than the BMP. BMP is gigantic — a 12-megapixel photo is around 36 MB — and no browser treats it as a sane web format.
Is there a file-size limit when converting JPEG to BMP?
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Free conversions have a size limit per file, set by the type of file, and the page tells you when a file is over it. A paid plan removes that limit, so much larger files can be converted.
Can I batch-convert several JPEG files to BMP at once?
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Several files in one job need a paid plan. Free use is one file per conversion, one conversion an hour. On a paid plan you can add several files to one job, then download each result on its own or all of them in one ZIP.
What happens to my JPEG files after the conversion?
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Uploaded files are processed on our own conversion servers, nobody looks at them, and they are not shared. The upload and the converted file are both deleted automatically about 24 hours after the conversion, which leaves time to download the result. See /privacy/ for the full policy.
Where can I open a BMP file?
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BMP opens in mainstream image viewers and editors. For web embedding, consider converting to PNG or WebP first since BMP is not always natively supported in browsers.
Do I need to install software to convert JPEG to BMP?
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No. The converter runs entirely in your browser plus our cloud — no plugin, no install, no admin rights. It works on Windows, macOS, Linux, ChromeOS, iOS, and Android.
Do I need an account to convert JPEG to BMP?
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Yes. One conversion an hour is free, with no account needed, for a file within the free size limit. A paid plan removes the hourly limit and the size limit, and lets you add several files to one job.
Is there an API for JPEG to BMP conversion?
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Yes. Every conversion this site offers is also exposed via a JSON API — see /api/ for endpoints, authentication, and rate limits. JPEG to BMP is one of the supported pairs.
