Bulk Convert BMP to ICO
Drag & drop your BMP file here, or click to choose
BMP files only
You can drop or select several files at once.
Your file is never uploaded — everything runs in your browser.
Related external tools
Some links are affiliate links.
Related tools
ICO → BMPConvert ICO images to BMP in your browser — no upload, free and instant.PNG → BMPConvert PNG images to BMP in your browser — no upload, free and instant.PNG → ICOConvert PNG images to ICO in your browser — no upload, free and instant.JPG → BMPConvert JPG images to BMP in your browser — no upload, free and instant.
BMP (an uncompressed Windows bitmap) and ICO (the Windows icon format used for favicons). This free tool converts BMP to ICO directly in your browser, so your file never leaves your device. No install and no sign-up needed.
Batch conversion, ZIP download and quality control
- Convert many files at once — drop or pick several BMP files and they are converted one after another.
- When you convert two or more files, the results are bundled into a single ZIP so you download everything in one click.
- Adjust quality and size: lower the quality or resize to make the ICO files smaller. The setting applies to every file in the batch.
How to convert BMP to ICO
- 1Drop your BMP file onto the box above, or click to choose it.
- 2Adjust the options if you like (quality, output size or background).
- 3Click "Convert to ICO" and wait a moment.
- 4Download the ICO file — it is saved straight to your device.
Common uses
- Make a BMP image compatible everywhere by saving it as ICO.
- Reduce file size or meet an upload requirement that only accepts ICO.
- Prepare a ICO version for a website, document or app.
Quality & compatibility notes
- Everything runs in your browser — your file is never uploaded.
Frequently asked questions
Is my BMP file uploaded when I convert it to ICO?＋
No. The conversion runs entirely in your browser using your device, so your file is never sent to any server.
Will the quality drop when I convert BMP to ICO?＋
For most images the result looks the same. BMP and ICO are both well suited to this conversion.
Can I convert several BMP files to ICO at once?＋
Yes. Add multiple files and they are converted one by one in your browser. A single file downloads directly; two or more are packed into one ZIP. If one file fails, the others still convert.
Is it free? Do I need to sign up?＋
Yes, it is completely free — no sign-up, no install and no watermark.
Is there a file size limit?＋
You can convert files up to 30 MB. Everything is processed on your device, so very large files depend on your available memory.
Can I convert the other way, from ICO back to BMP?＋
Yes — we have a ICO to BMP converter too. Use the related links on this page.
Private by design
Everything runs in your browser — your file is never uploaded.