How do I convert GIF to ICO?

Add your GIF file to the upload area above, then press Convert. The ICO file downloads straight to your device. You do not need an account, and there is no watermark.

Are my files uploaded to a server?

No. This conversion runs entirely inside your browser using WebAssembly, so the file never leaves your device — you can even disconnect from the internet after the page loads and it will still work.

Does converting to ICO reduce quality?

No. ICO is a lossless format, so the conversion preserves exactly what is in your GIF file. Note that it cannot recover detail that was already discarded when the GIF was first created — a lossless container does not undo earlier compression.

How large a file can I convert?

Up to 120 MB per file for this conversion. Because the work happens in your browser, the practical limit is your device's memory — larger files work on a desktop with plenty of RAM and may fail on an older phone.

Can I convert several files at once?

Yes. Add as many as you like and press Convert All. Each file is processed independently, so one failure does not stop the rest, and you can download everything together as a ZIP.

Can I use this on my phone?

Yes. FileTools360 works in mobile browsers on iOS and Android, including choosing files straight from your camera roll. Very large videos may run out of memory on a phone — those are better converted on a laptop.

ImageLosslessRuns in your browser

GIF to ICO Converter

Turn GIF files into ICO in a couple of clicks. 256-colour animated format, still ubiquitous. Multi-resolution icon container for favicons and apps. The conversion is lossless — every pixel, sample or byte in the source is preserved.

On your deviceNever uploadedGone when you close the tabHow this works

Drop your files here

GIF files (.gif) · up to 120 MB each

or paste files from your clipboard

Ready when you are

Drop a GIF file above and FileTools360 will turn it into ICO — right here on your device, without uploading anything.

⌘K to search converters

How to use it

1
Add your GIF files
Drag them onto the upload area, choose them from your device, or paste them from your clipboard. You can queue several at once.
2
Adjust the settings if you want to
The defaults suit most people. Open Advanced to control dimensions, rotation and metadata removal.
3
Convert and download
Press Convert. Everything happens on your own device — nothing is uploaded. Download files one by one, or grab them all as a ZIP.

GIF and ICO explained

GIF is a 1987 format limited to a 256-colour palette per frame, with support for simple animation and one fully transparent colour. Its longevity is cultural rather than technical — nothing about it is efficient by modern standards.

ICO is a container that holds several versions of the same icon at different sizes, so the operating system or browser can pick the one that fits. It is capped at 256×256 pixels.

Where GIF files come from: Reaction images, simple UI animations, and screen recordings shared in chat.
Where ICO is used: Website favicons and Windows application icons.

GIF vs ICO

The two formats solve different problems, which is why converting between them involves trade-offs rather than a straight upgrade.

GIF compared with ICO
Property	Source	Target
Compression	Lossless	Lossy or lossless
Transparency	Yes	Yes
Animation	Yes	No
Colour limit	256 per frame	Full colour
Introduced	1987	1985
Browser support	Universally supported.	Browsers and Windows. Sizes are capped at 256×256.

GIF is stronger at: Animation plays anywhere without a video player. Universally supported, including in email and old forums. Lossless within its 256-colour limit.
ICO is stronger at: Holds multiple resolutions in one file. The format browsers expect for favicon.ico. Supports transparency.

Why convert GIF to ICO?

People make this switch when they run into the limits of GIF: the content is photographic, longer than a few seconds, or would be better as MP4 or WebM. ICO is the better fit when you are making a favicon or a Windows application icon.

GIF limitations that prompt the switch: 256 colours per frame, so photographs and gradients look banded. Enormous files compared with video — often 5–10× an equivalent MP4. Transparency is binary: a pixel is either fully opaque or fully transparent, producing jagged edges.
What you give up: Capped at 256×256. Not a general-purpose image format.

Does converting GIF to ICO reduce quality?

Both formats store the content without discarding data, so this conversion preserves it exactly. The file size may change because the two formats compress differently, but the content itself is unaffected.

A GIF is not a video. It is a sequence of full images with no interframe compression, which is exactly why it is so large.