CONVERT
ICO → XBM
Fast, secure ICO to XBM conversion. No registration required.
DRAG. DROP. DONE.
Upload any file and our engines will handle format detection automatically.
Max 100 MB · Free plan · No signup required
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ICO is the Windows icon container with multiple resolutions packed into one file. Reaching a XBM from there is one hop. Need a XBM for a CMS, a chat message or an email client that politely refuses ICO? This tool re-encodes your image in the background and returns a drop-in XBM replacement. No registration, no watermark, no visual change beyond what the XBM encoder itself introduces. One more beat. ICO is the Windows icon container with multiple resolutions packed into one file. Receiving format: XBM is an X Window System bitmap format stored as plain C source code.
ICO Icon
Source formatICO is the icon file format used for favicons and Windows application icons. A single ICO file can contain multiple image sizes and color depths for different display contexts.
X BitMap
Target formatXBM (X BitMap) is a monochrome image format used in the X Window System for cursor and icon bitmaps. The format stores pixel data as C source code arrays, making it directly includable in X11 programs.
Why convert ICO to XBM
Converting keeps the picture recognisable end-to-end while changing the container that ships it. XBM typically wins on one of three fronts: broader software support, smaller files for the same visual quality, or features like transparency that ICO cannot express. The conversion itself is fast because both sides are raster formats.
HOW TO CONVERT
ICO → XBM
Upload your ICO
Start by dropping the ICO onto the uploader. Files up to 100 MB go through on the free tier without registration.
Conversion happens server-side
Our imagemagick-based pipeline reads the ICO pixel grid, preserves resolution and colour profile, and encodes a clean XBM.
Grab the result
A download button appears as soon as the XBM is ready. Save locally or share the short-lived URL.
Common Use Cases
Cross-platform previews
Windows, macOS and Linux file browsers all render XBM thumbnails; ICO support varies by OS version.
Mobile galleries
iOS Photos, Google Photos and Samsung Gallery index XBM instantly — ICO sometimes falls back to a generic file icon.
Stock photography uploads
Shutterstock, Adobe Stock and similar marketplaces require XBM in their contributor guidelines.
Archive migration
Converting legacy ICO archives to XBM future-proofs the collection against declining codec support.
Quality & Compatibility
Converting keeps resolution, aspect ratio and colour profile identical to the source. Metadata (EXIF, XMP) transfers where XBM supports it; otherwise it is dropped. If the ICO contained an alpha channel and XBM does not support transparency, the background is flattened to white by default.
Tips for Best Results
- When uploading to Retina / high-DPI contexts, render the XBM at 2× the CSS pixel size; the crispness gap over 1× is noticeable on modern screens.
- Strip EXIF metadata from the XBM before publishing if the ICO came from a phone camera — it often contains GPS coordinates and device IDs.
- If the ICO is a screenshot of text or UI, prefer a lossless XBM target to avoid the JPEG-style ringing around glyph edges.
Frequently Asked Questions
Frequently Asked Questions
It depends on the codecs involved. If both ICO and XBM are lossy, the pixels are re-encoded and a small amount of detail is discarded — invisible at default quality settings on photographs. If XBM is lossless (PNG, TIFF, BMP) the output keeps every pixel of the decoded ICO exactly, but cannot recover detail that ICO had already compressed away.
Often yes, especially when XBM is lossless. ICO tuned for efficient web delivery will usually produce smaller files than XBM's default settings. If file size matters, drop the quality in Advanced or pick a more compressed target format instead.
KaijuConverter uploads over HTTPS, processes the image in an isolated container and deletes both the source and the output within two hours. No account is required, file contents are never logged, and we do not use uploads to train any model. For confidential material, the paid plan includes a data-processing agreement.
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Secure & Private Conversion
Your files are encrypted during transfer, processed in isolated containers, and automatically deleted within 2 hours. We never read, share, or store your data.