Step 1: Drop your MP4 files using the button above or by deposit and leave.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Receive your converted BMP files.
MP4 to BMP Conversion FAQ
How do I convert an MP4 file to BMP?
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Upload your MP4 file using the picker above and the converter detects the source type and runs the MP4 → BMP pipeline. The result downloads automatically when conversion completes; no account needed for one-off conversions.
Which frame of the MP4 do I actually get as a BMP?
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The one you point at, not just the first. A timestamp picks a single moment out of the MP4; an interval setting walks the whole video and returns one BMP per step, delivered as a ZIP. The default grabs a frame a few seconds in rather than at 00:00, because the opening frame of a video is very often black. MP4 is ISO/IEC 14496-14, standardised in 2001 and derived from the same QuickTime box layout MOV uses.
How big will the BMP files be?
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Larger than you might expect, because BMP keeps every pixel exactly rather than approximating. A 1080p still lands around 2-5 MB and a 4K still around 6-15 MB, so a long extraction run adds up quickly. That is the right trade when the images feed further processing, and the wrong one when they are going straight onto a web page. BMP usually stores completely uncompressed pixel rows with a small header, which is why it is so simple to parse.
Is the MP4 to BMP converter free?
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Yes — basic MP4 → BMP conversion is free with no registration. Premium adds higher per-file size limits, more parallel batch workers, and removes ads.
How big an MP4 file can I convert to BMP?
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Free accounts: up to 100 MB per MP4 file. Premium: typically 1 GB per file, depending on the MP4 source type. Very large files are split into chunks server-side when the BMP format allows.
Will conversion change the content of my MP4?
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Conversion preserves all information that both MP4 and BMP can represent. Format-specific features that the BMP format doesn't support (e.g. vector data in raster output, formulas in plain-text output) are rasterized or stripped — see the format-specific notes on the result page.
Can I convert many MP4 files to BMP at once?
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Yes — drop multiple MP4 files into the upload zone and they are queued in parallel. Premium has more parallel workers; on a 50-file batch this is the difference between minutes and seconds.
Does the MP4 to BMP converter work on phones and tablets?
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Yes — the UI is responsive and the conversion pipeline runs server-side, so mobile devices upload-then-download just like desktops. iOS and Android browser file pickers (camera roll, Files app) work end-to-end.
Which browsers does the MP4 to BMP converter support?
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Chrome, Firefox, Safari (15+), Edge, and Opera. The converter uses standard `<input type="file">` upload — no WebAssembly or PWA dependencies — so even older browsers work.
Are my MP4 files kept private?
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Yes — uploaded MP4 files are processed in isolated workers and deleted within minutes. We never view, retain, or share content. See /privacy/ for the data-retention window.
What if the BMP download doesn't start automatically?
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Disable any pop-up blocker, then click the download button manually. The result link stays active for 24 hours, so if your network fails mid-download, you can re-trigger from the result page without re-uploading the MP4.
How long does MP4 to BMP conversion take?
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Typically seconds for small files, a minute or two for files near the size cap. Server-side pipeline runs on dedicated workers — your laptop CPU isn't the bottleneck.
