Open .bmp files online
To open a .bmp file in your browser, press Open editor on the photo editor, then choose File > Open and pick your file. On 2026-10-25 we opened an 800 x 500 24-bit BMP and an 8-bit palette BMP on anyedit.app. Both showed with the right size and colors; the 8-bit file opened in Indexed color mode. We drew a brush stroke on the 24-bit file and exported it with File > Export As as PNG: a valid 800 x 500 RGB image with the stroke in it and the original colors unchanged. The important limit is that you cannot save a BMP. The Export As format list offers PNG, JPG, WebP, TIFF, TGA and ICO, and Save As wrote a .psd file, so use this page to view a BMP and convert it to another format, not to produce a new .bmp. We did not test 32-bit BMP with transparency, compressed (RLE) BMP, 1-bit or 4-bit BMP, or very large files. Nothing is uploaded and there is no sign-up.
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Can I open it?
| Check | Result | Notes |
|---|---|---|
| Listed by the engine | Listed in docs | BMP is listed among the flat image formats the photo editor reads, next to GIF, TGA, ICO, QOI, PNM, OpenEXR and Radiance HDR; the upstream notes do not say whether BMP can be written. |
| Opened a 24-bit .bmp | Works | An 800 x 500 24-bit BMP (made with Python Pillow: three color bars and a white rectangle) opened as one Background layer. The document showed 800 px x 500 px, RGB/8, and the colors looked right. The file was opened with File > Open > Open..., and the file picker accepted it. |
| Opened an 8-bit palette .bmp | Works | An 800 x 500 BMP with an 8-color palette opened with the right picture. The tab title read Indexed/8, so the editor kept it in indexed-color mode. We did not edit this one. |
| Edited it | Works | We painted a black brush stroke across the orange bar of the 24-bit file. The stroke showed on the canvas and the document was marked as edited. |
| Exported as PNG | Works | File > Export > Export As > PNG downloaded anyedit-sample.png (11.9 KB). The file command and Python Pillow read it as an 800 x 500 RGB PNG. The sampled colors were exactly the original orange, navy, teal and white, and the stroke pixels were black. |
| Saved as .bmp | Not supported | Not possible. The Export As format list is PNG, JPG, WebP, TIFF, TGA and ICO, with no BMP. File > Save As did not ask for a format: it wrote anyedit-sample.psd (the status bar said Saved anyedit-sample.psd), which the file command reads as an 800 x 500 RGB Photoshop image. |
| 32-bit BMP with transparency, RLE or 1-bit/4-bit BMP | Not tested yet | Not tested for this format. We only used a 24-bit and an 8-bit uncompressed file. |
| Phone screen (390 px wide) | Not tested yet | Not tested for this format. |
Our test file open in the photo editor on anyedit.app, 2026-10-25