WebP to ICO Converter: Free, Private, No Upload

Convert WebP 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.

WebP 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 WebP to ICO for free?

Drop your WebP 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: WebP
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 WebP to ICO

1
Drop your WebP files
Drag up to 20 WebP 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.

WebP to ICO: what changes and when it makes sense

WebP is a WebP format, developed by Google. It is best known for smaller files than JPG and PNG at similar quality, with transparency and animation in one format. The main drawbacks are rejection by some upload forms, older editors and email clients, and no wide-gamut or HDR support.

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.

WebP vs ICO at a glance

Property	WebP	ICO
Type	Raster image	Container format
Compression	Lossy (VP8) or lossless, chosen per file	A container holding one or more bitmaps, each stored as BMP or PNG data
Transparency	Full alpha channel with soft edges	Full alpha channel with soft edges
Animation	Yes	No
Colour depth	8 bits per channel	Up to 32-bit colour with an 8-bit alpha channel
Support	Supported by current Chrome, Edge, Firefox, Safari and Opera, but not by every older editor, office suite or upload form	Supported by Windows and by browsers as a favicon, but most image viewers and editors do not open it directly
History	Announced by Google in September 2010, based on the VP8 codec acquired with On2 Technologies. First format to combine lossy, lossless, alpha and animation in one specification. Safari support arrived in 2020 with macOS 11.	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

WebP can be lossy or lossless. If your file was saved lossy, converting to ICO stops further loss but does not restore detail.
Transparency is preserved, including soft edges.
WebP 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 WebP: history and technical details

Announced by Google in September 2010, based on the VP8 codec acquired with On2 Technologies. First format to combine lossy, lossless, alpha and animation in one specification. Safari support arrived in 2020 with macOS 11.

Technical: Lossy WebP uses VP8 intra-frame coding with 4x4 and 16x16 block prediction. Lossless WebP uses a new algorithm with colour cache and LZ77 backward references. Max dimensions 16,383 by 16,383.

Real-world size: Lossy WebP at quality 80 is typically 25-35% smaller than JPG at quality 85 for photographs. Lossless WebP is 20-30% smaller than PNG for graphics. Google reports 80% savings on some assets after switching to WebP.

Popular tools: Google Chrome (built-in encoder), cwebp, Squoosh, ImageMagick, Adobe Photoshop 2020+, Figma, WordPress (via plugin).

Alternatives: AVIF (30-50% smaller but slower to encode), JPG (universally accepted), PNG (lossless), HEIC (Apple ecosystem).

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

WebP: Supported by current Chrome, Edge, Firefox, Safari and Opera, but not by every older editor, office suite or upload form. 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 WebP

Some CMS uploaders, marketplaces, print shops and older editors do not accept WebP.
Saving an image from a website often leaves you with a WebP that Office documents and older viewers will not open.
WebP has no HDR or wide-gamut support, so AVIF is the better choice for those images.

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 WebP

Re-converting a WebP that was already made from JPG — stacks two rounds of lossy compression
Serving WebP without a JPG fallback for very old Safari (pre-2020)
Expecting WebP to open in older Office versions — it will not

Best practices for keeping quality

If your WebP was originally made from a JPG or PNG, convert from the original instead. Going from lossy WebP to another lossy format stacks two rounds of compression.
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.

WebP to ICO questions

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

Why convert WebP 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 WebP 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.