GIF to ICO Converter: Free, Private, No Upload

Convert GIF files to ICO in your browser. Lossless output, batch up to 20 files at once, no upload, no account, no watermark. Your files never leave your device.

GIF to ICO
Batch up to 20 files
No upload, no account
Metadata stripped

1Add up to 20 images
2Pick from 18 formats
3Download or copy the code

Processed on your device. Your images are never uploaded, and metadata is stripped. How we keep it private

How do I convert GIF to ICO for free?

Drop your GIF files into the tool above, choose ICO as output, and download the result. Everything runs in your browser, so nothing is uploaded and there is no limit or watermark. It works on Windows, Mac, Linux, ChromeOS, iOS and Android — anywhere you have a modern browser.

Price: Free, no credits and no daily cap
Account required: No
File uploaded to server: No, processed locally in your browser
Batch limit: Up to 20 files at once
Input format: GIF
Output format: ICO
Best for: ICO workflows, lossless quality, editing, printing
Works on: Chrome, Edge, Firefox, Safari, iOS and Android browsers
Privacy: No upload, no tracking, metadata stripped
Output quality: Lossless, exact pixels

How to convert GIF to ICO

1
Drop your GIF files
Drag up to 20 GIF files onto the page or click to choose them. Everything runs in your browser.
2
ICO is preselected
Output is already set to ICO. Adjust quality, resize or batch if you want.
3
Download
Save each ICO, or download all of them together as a ZIP.

GIF to ICO: what changes and when it makes sense

GIF is a Graphics Interchange Format. It is best known for simple animation that plays everywhere without a video player. The main drawbacks are a 256-colour limit and on-or-off transparency, which cause banding in photos and jagged edges.

ICO is an Windows icon format. It is best known for packing several sizes (16, 32, 48, 256 pixels) into a single file. The main drawbacks are a maximum size of 256 by 256 pixels and little use outside icons.

GIF vs ICO at a glance

Property	GIF	ICO
Type	Raster image	Container format
Compression	Lossless LZW compression, after reducing each frame to a 256-colour palette	A container holding one or more bitmaps, each stored as BMP or PNG data
Transparency	On or off only, no soft edges	Full alpha channel with soft edges
Animation	Yes	No
Colour depth	8-bit indexed colour, 256 colours at most	Up to 32-bit colour with an 8-bit alpha channel
Support	Plays and displays everywhere, including email clients and chat apps	Supported by Windows and by browsers as a favicon, but most image viewers and editors do not open it directly
History	Developed by CompuServe in 1987 (GIF87a) and updated to GIF89a in 1989, adding animation and transparency. The LZW compression patent held by Unisys caused a crisis in the 1990s and motivated the creation of PNG. GIF usage is still massive despite being technically obsolete.	Introduced by Microsoft with Windows 1.0 in 1985. The modern 32-bit alpha version became standard with Windows XP (2001). Windows Vista (2007) added PNG compression inside ICO for icons larger than 48x48.

What actually changes in this conversion

A GIF is already limited to 256 colours per frame. Saving it as ICO keeps those colours exactly but cannot restore lost colours.
GIF can hold animation, but ICO cannot, so the result is a single still frame.
ICO holds images up to 256 by 256 pixels. Larger sources are scaled down.
EXIF, GPS and camera data are stripped on every conversion. That is good for privacy, but you lose capture dates.

About GIF: history and technical details

Developed by CompuServe in 1987 (GIF87a) and updated to GIF89a in 1989, adding animation and transparency. The LZW compression patent held by Unisys caused a crisis in the 1990s and motivated the creation of PNG. GIF usage is still massive despite being technically obsolete.

Technical: Up to 256 colours per frame from a palette. LZW compression on the indexed pixel data. Supports transparency (one palette index is transparent). Animation via multiple frames with per-frame delays. No true 24-bit colour.

Real-world size: A 500-frame animated GIF at 800x600 is 15-30 MB. The same animation as MP4 is 1-3 MB (90% smaller). A single 800x600 GIF frame is 100-500 KB; as PNG it is 200-600 KB but with better colour.

Popular tools: Photoshop, GIMP, ScreenToGif, Gifski, ImageMagick, FFmpeg, Ezgif.

Alternatives: MP4 (90% smaller for animation), WebP (animation with 16M colours), APNG (rarely used), PNG (for static frames).

About ICO: what you get

Introduced by Microsoft with Windows 1.0 in 1985. The modern 32-bit alpha version became standard with Windows XP (2001). Windows Vista (2007) added PNG compression inside ICO for icons larger than 48x48.

Technical: Container holds 1-65535 images. Each entry has a 16-byte directory: width, height, colour count, planes, bit count, data size, data offset. Images are BMP (DIB) or PNG. Max dimension 256x256. Typical Windows icons use 16, 32, 48, 64, 128, 256.

Real-world size: A 6-size favicon.ico is typically 15-40 KB. A single 256x256 PNG favicon is 8-15 KB. Modern best practice uses separate files for 16, 32, 180 (Apple), 192, 512 (PWA).

Popular tools: IcoFX, GIMP, Adobe Photoshop (with plugin), ImageMagick, Favicon Generator, RealFaviconGenerator.

Alternatives: PNG (single size, widely accepted), SVG (sharp at any size), favicon.ico (still needed for legacy).

Browser and software compatibility

GIF: Plays and displays everywhere, including email clients and chat apps. ICO: Supported by Windows and by browsers as a favicon, but most image viewers and editors do not open it directly.

ICO is meant for favicons and Windows icons. It is not a general-purpose image format.

Why people move away from GIF

A palette of 256 colours cannot reproduce photographs or smooth gradients, and transparency is on or off with no soft edges.
Animated GIFs are heavy compared with MP4 or WebM video, which can be a fraction of the size for the same clip.

Why people choose ICO

Browsers and Windows still look for favicon.ico at the root of a site by default.
One ICO file can carry several sizes, so tab icons, bookmarks and shortcuts all look sharp.
Windows shortcuts and application icons expect ICO.

Common mistakes with GIF

Using GIF for photos — banding and dithering ruin the image
Not compressing animated GIFs — they can be 10-20x larger than equivalent MP4
Expecting GIF to have smooth transparency — it is on or off only

Best practices for keeping quality

A canvas-based still conversion draws a single frame, normally the first. Extract or trim the frame you want before converting an animated GIF.
Start from a square image of at least 256 by 256 pixels and keep the design simple, since it will often be shown at 16 by 16.
Keep a PNG or SVG copy. Modern browsers accept link rel="icon" pointing at PNG or SVG.
Resize before converting if the image will be shown small. A 4000 pixel photo displayed at 800 pixels wastes bytes in any format.
Check the result at 100 percent zoom, especially around text, edges and gradients, before you replace any originals.
Keep your original files. Conversions to a lossy format cannot be undone.
When you convert a set of images, use the same quality setting for the whole batch. The converter handles up to 20 files at once.

GIF to ICO questions

Quick answers about privacy, quality, supported formats, file limits and how ICO works.

Why convert GIF to ICO?

ICO is lossless. It keeps every pixel exactly. It is the safe choice when you plan to edit, print or need exact pixel data.

Will converting GIF to ICO lose quality?

No. ICO is lossless, so nothing is thrown away.

Does ICO keep transparency?

Yes. ICO supports full transparency, so transparent areas in your original are kept.

Are my files uploaded?

Never. Everything runs in your browser. Your files never leave your device. Open DevTools Network tab while processing — you will see no upload request.

Can I convert many files at once?

Yes, up to 20 files at once. Download them individually or all together as a ZIP.

Does the converter strip metadata?

Yes. Browsers do not pass EXIF data through a canvas, so GPS, camera model and dates are removed on every conversion. That is good for privacy.

Is it free?

Yes. No credits, no daily cap, no account, no watermark. The practical limit is your device memory.

What sizes should a favicon.ico have?

At minimum 16x16, 32x32, and 48x48. Modern best practice is to include 16, 32, 48, 64, 128, and 256 pixel versions in one ICO file. Browsers pick the size they need.

Your files never leave your device

No upload, no account, no tracking. Everything happens in your browser using the Canvas API and WebAssembly. You can confirm this in your browser's DevTools Network tab while the tool runs — no request carries your file. See why ToolDeck is different.