Add your JP2 file
Drop one or more .jp2 files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
JP2 to BMP
Converting a .jp2 image to .bmp re-encodes the pixels for a different balance of size, quality, and support. Free, private, and validated — the file never leaves your browser.
Private for supported formats — processed in your browser
Runs on your deviceConvert supported files
Drop JP2 files here
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.About converting JPEG 2000 image to Bitmap image
Converting a .jp2 image to .bmp re-encodes the pixels for a different balance of size, quality, and support. A .jp2 file is a JPEG 2000 image in the boxed JP2 container: wavelet-compressed raster data plus the header boxes that declare its colour space and metadata. It was designed as JPEG's technical successor and, although the web never adopted it, it became the standard in digital cinema, medical imaging, and archival scanning.
A .bmp file is the Windows bitmap format: raw pixel rows written to disk with a small header and, in the common case, no compression at all. Its brute simplicity makes .bmp trivial to read and write from any programming language, which is why it persists in tooling, embedded systems, and quick debugging dumps. For this route the practical draw is dead-simple structure with no decoding step at all and exactly lossless — what you write is what you read — balanced against no effective compression, so files dwarf PNG equivalents of the same image, which is worth knowing before you commit a large batch.
Why convert JP2 to BMP?
The practical trigger for this conversion is usually a mismatch: with .jp2, no mainstream browser decodes it, and Safari dropped its support, so it is unusable for web delivery. Switching to .bmp buys you dead-simple structure with no decoding step at all, which is why it is the better fit for quick lossless dumps from code, since a writer takes minutes to implement. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
JP2 vs BMP at a glance
| Aspect | JPEG 2000 image (.jp2) | Bitmap image (.bmp) |
|---|---|---|
| Format type | Lossy — discards detail it judges invisible to shrink files | Lossless — every pixel or sample is preserved exactly |
| How it stores data | discrete wavelet transform: the reversible LeGall 5/3 filter for lossless coding and the irreversible CDF 9/7 filter for lossy | pixels are typically stored uncompressed; optional RLE encoding exists only for 4-bit and 8-bit palette images |
| Strongest at | digital cinema packages, where the DCI specification mandates JPEG 2000 for the picture track | quick lossless dumps from code, since a writer takes minutes to implement |
| Weak spot | no mainstream browser decodes it, and Safari dropped its support, so it is unusable for web delivery | no effective compression, so files dwarf PNG equivalents of the same image |
Pick BMP as the output
Select .bmp in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if BMP is selectable, the route is real and validated.
Convert on your device
Press Convert. Decoding and re-encoding happen on your device using the browser's native image pipeline and hand-tuned encoders.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid BMP file. Outputs keep the original filename with the .bmp extension.
JP2 to BMP questions, answered
Will converting JP2 to BMP lose quality?
No new loss is introduced — since jp2 is lossy-oriented and bmp is lossless-oriented, everything the .jp2 file still contains is carried over exactly. What was already discarded by the original lossy encode cannot be recovered, though; converting to .bmp does not "restore" quality.
Is it private to convert JP2 files here?
Yes — the .jp2 file is processed inside your browser tab and never uploaded. Decoding and re-encoding happen on your device using the browser's native image pipeline and hand-tuned encoders. Close the tab and the file is gone from memory.
Where will the BMP file work?
Windows treats BMP as a native citizen, and macOS, Linux, and all major browsers open it without complaint. The format's problem is never support but waste: emailing or hosting uncompressed bitmaps burns bandwidth for zero benefit, so converting to PNG is almost always an upgrade.
Will the BMP file be bigger or smaller than my JP2?
Larger, sometimes much larger. A lossless .bmp must store every pixel or sample the decoder produced, without the perceptual shortcuts .jp2 used. Use this route for editing headroom, not for saving space.
What happens to the metadata in my JP2 file?
In .jp2, the JP2 container holds an ICC profile in its colour specification box and can carry XMP in a UUID box, EXIF in a UUID box, arbitrary XML, and an intellectual-property box. This converter reads the pixels only; header boxes are not carried into the raster outputs. Re-encoding through the browser pipeline does not carry embedded metadata into the output, which doubles as a privacy scrub — check the exported file if you specifically need tags preserved.