Convert ICO to AVIF
Drop your ICO file — it converts on your device and never gets uploaded.
Drop your images hereTap to choose images
Processed on your device. Nothing is uploaded.
Advanced options
Default quality is tuned per format — leave it unless you need control.
Metadata stripped
EXIF and GPS are dropped during re-encoding.
Memory only
Files are released the moment you press Clear.
11 inputs accepted
PNG · JPG · JFIF · WEBP · AVIF · GIF · BMP · ICO · HEIC · HEIF · SVG
Why convert ICO to AVIF?
ICO (Microsoft, 1985) is best for favicons and windows icons, and AVIF is lossless, so every pixel is preserved exactly. Converting ICO to AVIF makes sense when you need the smallest possible web files — chrome, firefox, safari 16+ support, smallest files. Transparency is preserved.
ICO export is capped at 256px, ideal for favicons.
Questions
Is AVIF smaller than ICO?+
AVIF files are typically smallest where ICO files are tiny, so in most cases yes. The result depends on the image.
Do my files get uploaded during the conversion?+
No. The ICO is decoded and re-encoded by your own browser. Open your Network tab and watch it stay empty.
Can I convert several ICO files at once?+
Yes. Drop a whole batch, convert them together and download the results as a single ZIP.
Is there a file size or daily limit?+
No limits and no account. The only real ceiling is your device's memory, since everything runs locally.
What happens to EXIF and GPS data?+
It's removed. Writing a fresh AVIF drops camera, date and location metadata, which is usually what you want before sharing.
Does this cost anything?+
No. There is no server bill to pass on, so converting ICO to AVIF is free and always will be.
Related conversions
Your images. Your device. Your privacy.
ICO to AVIF and back, as many times as you like.
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