PBM to ICO
Convert PBM to ICO in your browser. Nothing's uploaded.
Runs in this tab. The file stays here.
This runs in your browser. Nothing is uploaded.
Format hubs: PBM · ICO · Convert
About PBM to ICO
Converts PBM to ICO in your browser. Netpbm 1-bit bitmap. Output is ICO. Nothing is uploaded.
PBM is netpbm 1-bit bitmap. ICO is windows icon file. Written here as a single PNG-in-ICO. This page is only that pair. It isn't a generic dump box that guesses the destination after an upload. If you have a different container, use that format's hub instead of forcing the file through the wrong decoder.
The still is read into memory and converted with FFmpeg compiled to WebAssembly for still formats the browser can't open natively. You can open the network tab first: you should see this origin load, not a POST of the file. After the page (and encoder, if this is media) has loaded, wifi can go off. That's the whole product, not a badge.
ICO is a lossless or uncompressed target. It won't restore detail a lossy PBM file already threw away. It stores the current samples or pixels more honestly, usually in a larger file. That's useful when the next tool in a chain insists on ICO, not when you're trying to “improve” a compressed original.
Related conversions sit on this same origin. PBM to another destination, or another source into ICO, are separate pages so the titles stay specific. The PBM hub and the ICO hub list every pair I actually ship. Missing pairs are missing because the encoder or decoder isn't here, not because they are paid.
Start from the PBM hub if you're leaving this format, or the ICO hub if you need to arrive in it. Those pages are indexes, not upload forms. A generic dropdown still exists under Video convert and Audio convert when you would rather pick the destination after you drop the file. Stills use jSquash or canvas; HEIC is the one exception that needs its own decoder. You can disconnect after that core has loaded.
How to use PBM to ICO
- 1Drop a PBM file onto the panel, or click to browse. Other formats belong on their own pair pages.
- 2There's no quality slider. ICO keeps the pixels it's given.
- 3Click Convert & download. The ICO file saves on this device.
What it won't do
- Input is PBM (image/x-portable-bitmap,.pbm). A different container belongs on its own pair.
- One file per conversion. Batch convert is a different page.
Common questions
Does converting PBM to ICO upload the file?
No. This is a static page. The still stays in the tab. The network panel should show this origin, not a POST of your PBM file.
Will PBM to ICO look or sound the same?
Pixels or samples that are already in the PBM file are kept. Anything PBM already discarded is gone. ICO won't invent it back.
Why is there a separate PBM to ICO page instead of one converter?
Searchers type this pair. A generic convert tool with a dropdown is easy to build and easy to bury. Each pair is its own URL, its own title, and a file picker that expects PBM. The generic pickers still live at video convert and audio convert if you want a dropdown.
Can I convert ICO back to PBM on this site?
Yes: that's /convert/ico-to-pbm. Going back and forth through a lossy codec twice is how you make mud. Do it once if you must.
Related tools
Why this one doesn't upload your file
There is no server to upload to. This page is a static file, and the work happens in your browser using the same graphics and WebAssembly code that renders every other site you visit. Your file is read from disk into memory, processed, and handed back as a download. Once the page has loaded you can disconnect from the network entirely and it keeps working. The longer explanation