APNG to GIF Converter - Convert Animated PNG Locally & Privately

Convert Animated PNG (.apng) files to animated GIF format directly in your browser. 100% local, privacy-first conversion with no file size limits and no server uploads.

Click for theater mode

Drop Animated PNG (.apng) file here

Converted 100% in-browser. Bypasses external servers for security.

Add an APNG file to begin.

Conversion executes securely in your local browser sandbox. No server uploads.

Converted Preview

Upload a file and click convert to preview and download your animated GIF.

How to Use

  1. Upload File: Drag and drop your .png / .apng file or click to select from your device.
  2. Select Matte Color: Choose a background fallback color (e.g. white, black, or transparent) to optimize edges.
  3. Convert File: Click the Convert button to start frame extraction and GIF packaging.
  4. Download GIF: Click the Download button to save your compiled animated GIF.

Core Features

  • 100% Local & Private: Your animated files are parsed and compiled entirely in your browser. Your animations are never uploaded to our servers, keeping your custom assets confidential.
  • Speedy Transcoding: Bypasses network upload latency. Converted frames are generated locally in seconds.
  • Alpha-Matting Support: Choose a custom matte background color to ensure transparent vector shapes blend smoothly into the 1-bit GIF palette.
  • Free & Unlimited: No subscription restrictions, file size caps, or queue waiting lines.

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Calculation Logic

Animated PNG (APNG) expands the standard PNG format to support 24-bit color depth and full 8-bit alpha transparency across multiple animation frames.

This tool uses client-side JavaScript to parse the APNG's binary stream (including the acTL, fcTL, and fdAT chunks), extracting raw frame pixel buffers and frame delay parameters. The frames are then processed on a canvas (applying transparency flattening if requested) and re-encoded into an animated GIF container using our local GIF packaging engine.

FAQ

Will my converted GIF retain full transparency?

GIF only supports 1-bit transparency (a pixel is either 100% transparent or 100% opaque). To prevent rough edges, use the background matte color picker in our tool to blend semi-transparent pixels smoothly.

Why does my PNG upload as a static image?

Make sure the file you are uploading is indeed an Animated PNG (APNG) rather than a standard static PNG. Standard PNG files will convert to a single-frame GIF.

Is there a file size limit?

No file size limits are enforced because the conversion happens entirely on your local computer. It is only limited by your device's browser memory.

Can I change the frame rate?

Yes, you can speed up or slow down the output animation using the speed scaling slider in the configuration panel.