Converts WebP files to ICO format — modern websites to favicons and app icons. All conversion happens locally in your browser with no file size limits.
Runs on Canvas
Content reviewed October 2026 · About Toolzum
HEIC to ICO output is not produced here — HEIC input decodes via heic2any, but Canvas cannot encode ICO, so conversion fails locally. Convert HEIC to PNG/JPG/WebP instead — local, unlimited saves.
AVIF to ICO output is not produced here — AVIF input decodes, but Canvas cannot encode ICO, so conversion fails locally. Convert AVIF to PNG/JPG/WebP instead — local, unlimited saves.
GIF to ICO output is not produced here — GIF input decodes, but Canvas cannot encode ICO, so conversion fails locally. Convert GIF to PNG/JPG/WebP instead — local, unlimited saves.
Design simple logos with text, tagline, and 5 preset icons on canvas — export PNG/SVG. Draft startup marks in an afternoon — local Canvas work, unlimited saves.
Generate favicon packages — PNG icons plus Apple touch icons — from one image. Note: the .ico file is PNG data renamed (modern browsers only). Ship every platform icon in one pass — local generation, unlimited saves.
WebP (Web Picture Format) uses lossy or lossless encoding and is best for modern websites — Google-recommended format with superior compression for faster page loads. ICO (Windows Icon) uses lossless (multiple sizes) encoding and excels at favicons and app icons — standard format for website bookmarks and Windows application icons. Converting between them lets you take advantage of each format's strengths — for example, using a compressed format for sharing and a lossless format for editing. All conversion happens locally in your browser with no file size limits.
Canvas cannot encode ICO, so the run ends in Conversion failed with no file written. Convert WebP to PNG, JPG, or WebP for a working download.
Moot — no ICO is emitted from WebP input, so no size set builds. Convert WebP to PNG for icons and favicons instead.
For WebP sources: PNG for exact pixels, JPG for photos at fixed 0.92, or WebP at 0.85 — every one encodes locally with unlimited saves.
No — the attempt runs locally in your browser and fails before any save. Local-tool downloads stay unlimited.
ICO to WebP
Convert ICO favicons to modern WebP in your browser — small fast-loading icons for today's web for faster modern web delivery.
Bulk Image Format Converter
Convert image batches between JPG, PNG, WebP, and AVIF outputs (JPEG/PNG/WebP/AVIF/HEIC/HEIF/GIF/BMP/ICO/SVG inputs; HEIC via heic2any, SVG rasterized at intrinsic size or 1024px fallback) with a quality slider (10–100, default 80). Pair pages (?from/?to) preset the output. Flat ZIP renamed per file — local, 5-file guest batches, 25 signed-in, 500 Pro.
Batch Image Converter
Convert a batch of images to one output — JPG, PNG, or WebP — at quality 10–100% (default 80%), capped at 4096px longest side, then download everything as a ZIP. Files that fail conversion fall back to their originals inside the same archive — local library work.