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ICO to APNG converter

Convert ICO to APNG in your browser. No upload and no account: the file never leaves your device, so the only size limit is your device’s memory.

I want APNG
90%
Icon sizes
How to make the SVG

Tracing suits logos, icons and flat artwork and scales cleanly. Photos are better kept as pixels inside the SVG.

16
50%
Dither Scatters black dots to suggest gray, instead of a hard cut-off.
Advanced 5
Keep the animation For animated GIF, WebP and APNG sources. Turn off to save just the first frame.
Rotate
Mirror horizontally
Mirror vertically

For an exact width and height, use the Resize Image tool instead.

Bytes of your files sent anywhere: 0 B

Related conversions

Need it the other way round? Convert APNG to ICO

Other ways to convert ICO

Convert other formats to APNG

Read more about the ICO format and the APNG format, or see every image tool and all image conversions.

Should you convert ICO to APNG?

A safe conversion when APNG is what you need: both ICO and APNG keep every pixel, so the picture itself doesn’t change.

Bear in mind APNG is opens in current browsers and apps: it works in every current browser and Telegram stickers; most image editors show only the first frame.

ICO is a small container that holds the same icon at several sizes; APNG is a PNG that animates, with full color and soft transparency. Use APNG for small animated graphics on the web where GIF’s color banding or jagged edges would show.

ICO and APNG compared
Property ICO APNG
Compression Lossless Lossless
Transparency Yes Yes
Animation No Yes
Support Opens almost everywhere Opens in current browsers and apps
Best for Website favicons and Windows shortcuts Animations that need more than GIF’s 256 colors or smooth transparent edges
Introduced 1985 2008

How to convert ICO to APNG

  1. 01

    Add your ICO

    Drop your ICO image onto the box, or click to choose it. It is read from your disk and stays there.

  2. 02

    Check the settings

    The output is already set to APNG. Change the quality if you want to; the defaults suit most files.

  3. 03

    Save the APNG

    Press convert and save the APNG. Several files come back together as a ZIP.

What changes when ICO becomes APNG

Nothing is discarded

ICO and APNG both keep every pixel, so the picture survives the move intact. You can convert back and forth as often as you like without it degrading.

Transparency is kept

ICO and APNG both support transparency, so transparent backgrounds and soft edges come through unchanged.

Expect a larger file

APNG generally takes more room than ICO. If the file has to fit an upload limit, check the size once it’s converted. ICO: A full favicon with every size is usually under 100 KB. APNG: Larger than a GIF of the same animation, but in full color.

This page is put together from our notes on each format, choosing only what is true of ICO and APNG, so every pairing states the same facts the same way. How these pages are made.

Why it doesn’t upload

Changing a picture’s format is work your browser already knows how to do. Sending your photos to a server first only adds waiting and risk, so nothing is sent.

How to check for yourself

Worth knowing

  • About the ICO. Renaming a PNG to favicon.ico works in some browsers and silently fails in others. A real ICO holds several sizes so each place picks the right one.
  • About the APNG. An APNG usually still ends in .png, so an upload form or editor treats it as a still picture and the animation silently disappears.
  • DDS, PSD, EXR, XWD and JPEG 2000 are read by the FFmpeg engine, a one-time 31 MB download.

Questions

Will converting ICO to APNG lose quality?

No. ICO and APNG are both lossless, so every pixel is kept.

Will the APNG be smaller than the ICO?

Expect a larger file. APNG generally takes more room than ICO. If the file has to fit an upload limit, check the size once it’s converted. ICO: A full favicon with every size is usually under 100 KB. APNG: Larger than a GIF of the same animation, but in full color.

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