GIF to APNG Converter

What Is APNG?

APNG (Animated Portable Network Graphics) extends the familiar PNG format with animation frames. It was created by Mozilla and is now supported by every major browser. Compared with the decades-old GIF format, APNG offers two big upgrades: full 24-bit colour instead of a 256-colour palette, and 8-bit alpha transparency — 256 levels of see-through — instead of GIF's all-or-nothing transparency. That means soft shadows, glows and anti-aliased edges look smooth on any background, where a GIF shows jagged, often white-fringed edges.

This GIF to APNG converter (GIF से APNG) takes an animated GIF and re-encodes it as a lossless APNG in your browser, keeping every frame's timing and transparency.

How to Use It

1. Choose a maximum size — keep the GIF's size, or limit the longest side to 480 or 320 pixels for stickers and icons.
2. Drop your animated GIF (up to 50 MB and 500 frames). Tiles show its size, dimensions and frame count.
3. Press Convert to APNG. Frames are prepared and compressed.
4. Check the preview on the checkerboard background (which reveals transparency), then press Download.

An Honest Note About File Size

Many people expect a converted APNG to be smaller than the GIF. Usually it isn't. APNG stores each frame losslessly with full colour information, while GIF throws away colour detail to fit 256 colours. When converting from a GIF, the APNG must faithfully keep all the pixels the GIF has, in a format with more room per pixel, so the file often grows. Choose APNG when quality and transparency matter — UI animations, stickers, emotes, logos over varied backgrounds. When file size matters most and transparency isn't needed, convert to WebM or MP4 instead, which are typically far smaller than both.

GIF vs APNG vs WebP vs Video

APNG's sweet spot is small animations that must look crisp over any background and behave like a normal image — no video player, no autoplay rules.

Timing and Frames

The converter uses your browser's ImageDecoder to rebuild every complete GIF frame (many GIFs store only changed regions) and copies each frame's delay into the APNG. Delays under 20 milliseconds are written as 100 milliseconds, which is how browsers have always shown such GIFs, so the animation looks the same speed as before. The APNG loops forever, just like most GIFs do.

Why the File Ends in .png

An APNG is a valid PNG with extra animation chunks, so it conventionally keeps the .png extension. That's a feature: you can upload it anywhere PNG is accepted. Viewers that understand APNG — all modern browsers and many image apps — play the animation; older viewers simply show the first frame as a still image instead of failing. If a platform specifically asks for an .apng file, you can rename the download; the contents are the same.

Using APNG on a Website

An APNG is used exactly like any PNG: put it in an <img> tag or a CSS background. There are no autoplay rules, no video player controls and no need for muted or playsinline attributes — it simply animates, like a GIF. Give the image explicit width and height attributes to avoid layout shifts, and add meaningful alt text describing the animation for screen-reader users. For large animations, remember that APNG is lossless; a video format will be much lighter.

Why Do GIF Edges Look Jagged?

A GIF pixel is either fully transparent or fully opaque — there's nothing in between. When an artist exports a shape with soft, anti-aliased edges to GIF, the semi-transparent edge pixels must become either solid or invisible. They are usually blended with an assumed background colour (often white) and kept solid, which produces the familiar white halo when the GIF is placed on a dark page. APNG's 8-bit alpha channel can store those in-between values, which is why APNGs exported from the original artwork look smooth on any background.

APNG or Animated WebP?

Animated WebP also supports full colour and smooth transparency, and its lossy mode makes much smaller files. APNG's advantages are that it's truly lossless and that it falls back gracefully: apps that can't animate it still display the first frame as a normal PNG. Choose APNG when pixel-perfect quality or compatibility with PNG-only upload fields matters; choose animated WebP or video when size is the priority.

Common Uses

• Website UI animations: loading spinners, animated icons and illustrations that sit over coloured or patterned backgrounds.
• Stickers and emotes: some chat and sticker platforms use APNG; check each platform's size and length limits.
• Logos with soft shadows: animated brand marks that need smooth edges.
• Game and app assets: sprite animations where colour accuracy matters.
• Documentation: short UI demos that should behave like images.

Worked Example

A community manager has a set of animated reaction GIFs and a sticker platform that accepts only APNG files no larger than 320 pixels. For each GIF, they choose 320 px, drop the file and press Convert to APNG. The tiles confirm the frame count, the converter keeps every frame's timing and transparent background, and the checkerboard preview shows the sticker exactly as it will appear. They download each .png and upload it. Note that converting can't smooth edges that were already jagged in the GIF — for perfectly soft edges, export APNG directly from the original animation project where possible.

What the Info Tiles Show

When you add a GIF, the converter reads it and shows its file size, pixel dimensions and number of frames. These three numbers predict the APNG's size: more pixels and more frames mean a larger lossless file. If the GIF has hundreds of large frames, consider the size option or a video format. The result card then reports the APNG's size next to the GIF's, its dimensions and frame count, so you can decide immediately whether it suits your use.

How the Conversion Works

Each complete frame is drawn onto a transparent canvas, its pixels are read, and UPNG.js writes them into an APNG with the original delays. The library automatically stores only the changed area of each frame where possible and compresses every frame with the same lossless DEFLATE method used by ordinary PNG files, so no quality is lost at any step of the whole process.

Choosing a Size

Because APNG is lossless, file size grows quickly with dimensions: halving the width and height cuts the pixel count to a quarter. If an animation is displayed at 160 pixels on your site, a 600-pixel APNG wastes most of its bytes — choose 320 px (twice the display size, for sharp high-density screens). Sticker and emote platforms usually specify exact limits; pick the size option that fits within them. The converter never enlarges an animation.

Private by Design

Your GIF is decoded by the browser and encoded into APNG by the open-source UPNG.js library, all on your device. Nothing is uploaded, nothing is stored, and there is no watermark.

Troubleshooting

• "This browser cannot read GIF animation frames": use the latest Chrome, Edge or Firefox.
• The APNG is very large: choose 480 or 320 px, or use WebM/MP4 if you don't need transparency.
• It shows as a still image: the app you opened it in doesn't support APNG; open it in a web browser to see the animation.
• Edges still look jagged: the jaggedness is part of the GIF's frames; APNG preserves what the GIF contains.
• Only part of a long GIF converted: GIFs over 500 frames are converted up to frame 500.

Tips

• Use APNG for small, transparent animations and video formats for larger ones.
• Test on your real background — paste the APNG into your page or app to check the edges.
• Need a static image instead? Any PNG viewer shows the first frame.

Works on Any Device

Conversion requires the ImageDecoder API, available in current Chrome, Edge and Firefox on desktop and Android. The APNG output plays in all modern browsers, including Safari on Mac and iPhone.

Quick Glossary

• APNG: animated PNG — PNG with animation frames.
• Alpha channel: per-pixel transparency information.
• Lossless: compression that keeps every pixel exactly.
• Palette: the limited list of colours a GIF can use.

Why Use This Converter?

It produces true lossless APNGs with original timing and transparency, explains honestly when another format would be smaller, and keeps your files private — free. Related tools: GIF to WebM, GIF to MP4 and GIF Maker.

GIF to APNG Converter — Key Facts

Frequently Asked Questions

Explore More Prompt Minds Tools

GIF to APNG Converter works great alongside our other free tools. Every Prompt Minds tool runs entirely in your browser — no sign-up, no uploads, no watermarks. Browse all free tools.