Convert AVIF to ICO

AVIF to ICO converter that runs entirely in your browser. 100% free, no signup, no upload — your files never leave your device. One-click batch conversion.

Conversions

Drop any file here or click to browse

All file types supported

About formats

AVIF

AVIF (AV1 Image File Format) is a modern, royalty-free image format based on the AV1 video codec. It delivers dramatically better compression than JPEG and PNG — often halving file sizes — while supporting high dynamic range (HDR), 10+ bit color, and alpha transparency. AVIF is supported by Chrome, Firefox, and Android.

Developer: Alliance for Open Media
Initial release: 2019
Compression: Lossy or lossless
Color depth: up to 12-bit HDR
Transparency: Yes
Animation: Yes

Best for

Next-generation web image optimization
HDR photography on the web
Reducing image payload dramatically
Modern browser image delivery
High-efficiency image archival

Pros

+Often halves file sizes vs JPEG and PNG
+Supports HDR and 10+ bit color
+Alpha transparency and animation
+Royalty-free and open

Cons

−Slower to encode than JPG
−Limited support in older browsers and tools
−Less editing software support
−Hardware decoding still maturing

ICO

ICO is the image container format used for Windows icons and favicons. A single ICO file can bundle multiple sizes and color depths so that the operating system can select the best resolution. ICO is still essential for desktop application icons and website favicons.

Developer: Microsoft
Initial release: 1985
Compression: Uncompressed
Color depth: up to 32-bit
Transparency: Yes
Animation: No

Best for

Windows application icons
Website favicons
Bundling multiple icon sizes
Desktop app icon resources
Browser tab favicon images

Pros

+Bundles multiple sizes and color depths in one file
+Essential for Windows app icons
+Supports transparency
+OS selects the best resolution automatically

Cons

−Limited to icon use cases
−Not suited for general photography
−Less universal outside Windows
−No modern compression

How to convert AVIF to ICO

1
Select AVIF files from your computer, Google Drive, Dropbox, a URL, or by dragging them onto the page.
2
Choose ico — or any other format you need as a result (more than 200 formats supported).
3
Let the file convert, then download your ico file right away.

AVIF vs ICO

Property	AVIF	ICO
Compression	Lossy or lossless	Uncompressed
Transparency	Yes	Yes
Animation	Yes	No
Color depth	up to 12-bit HDR	up to 32-bit
Open format	Yes	Yes

When to use AVIF vs ICO

AVIF

Next-generation web image optimization
HDR photography on the web
Reducing image payload dramatically
Modern browser image delivery
High-efficiency image archival

ICO

Windows application icons
Website favicons
Bundling multiple icon sizes
Desktop app icon resources
Browser tab favicon images

Use cases for AVIF → ICO

Next-generation web image optimization
HDR photography on the web
Reducing image payload dramatically
Modern browser image delivery
High-efficiency image archival
Windows application icons
Website favicons
Bundling multiple icon sizes
Desktop app icon resources
Browser tab favicon images

Frequently Asked Questions

Is converting AVIF to ICO free?

Yes. This AVIF → ICO converter runs entirely in your browser and is completely free — no account, no credits, no watermark.

Which devices and platforms can I use to convert AVIF to ICO?

Any modern device with a current web browser: Windows, macOS, Linux, Android, iPhone and iPad. There is nothing to install — the conversion happens locally.

Are my AVIF files uploaded to a server?

No. Files never leave your device. The entire AVIF → ICO conversion runs locally in your browser, so your data stays private.

Can I convert multiple AVIF files at once?

Yes — batch conversion is supported. Add as many AVIF files as you like and convert them to ICO in one pass, then download the results together.

What is the maximum file size?

There is no fixed server-side limit because the conversion happens in your browser. Practical limits depend on the available memory and CPU of your device.

Will converting AVIF to ICO lose quality?

No. ICO is a lossless format (or used in a lossless mode here), so the original data from your AVIF file is preserved bit-for-bit in the converted result.

Will transparency be preserved when converting AVIF to ICO?

Yes. Both AVIF and ICO support alpha-channel transparency, so transparent areas of your file are kept unchanged in the ICO output.

How will the file size change after converting AVIF to ICO?

Both formats use comparable compression, so the ICO output will be similar in size to your AVIF file — typically within 10–20% of each other.

Related Conversions

Specific converters

FREE

100% Free

No hidden fees, no subscriptions, and no limits. Enjoy complete access to all features gratis.

SIGNUP

No Signup Required

Start converting immediately without creating an account or sharing email address.

PRIVACY

Private & Secure

Your files never leave your device. All processing is completed locally for maximum privacy.

BATCH

Batch Conversion

Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.

LOCAL

Runs in Browser

Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.

FORMATS

200+ Formats

Supports a wide variety of formats including images, documents, audio, video, and more.

USER REVIEWS

Convert AVIF to ICO Quality Rating

4.8

25 reviews

How was your experience? You need to convert and download at least one file to provide feedback!