GIF to APNG Converter
Convert animated GIF images to lossless APNG format directly in your browser. Preserve transparency and frame timing without uploading files to a server.
Animated or single-frame GIF · one file
Tips
- APNG uses lossless compression, preserving every existing pixel without introducing new compression artifacts.
- APNG files can be larger than GIF originals; use animated WebP instead if file size is your main constraint.
- Converting to APNG allows future editing with smooth 8-bit alpha transparency rather than 1-bit jagged edges.
How to use it
- 1 Select or drop your animated GIF into the conversion area.
- 2 Verify the preview and frame sequence.
- 3 Start the conversion to generate the APNG file locally.
- 4 Save the animated APNG file directly to your device.
What you should know
Animated Portable Network Graphics (APNG) extends the standard PNG specification to support multi-frame animations with full 24-bit RGB color and 8-bit alpha transparency. While legacy GIF files restrict each frame to a palette of 256 colors and binary on-off transparency, APNG prevents harsh halo artifacts around transparent edges. Converting an existing GIF to APNG prepares the animation for modern browser rendering and compositing workflows without generational loss. Because APNG relies on the Deflate compression algorithm, it maintains exact pixel integrity across all modern desktop and mobile browsers while retaining backwards compatibility with standard PNG decoders.
This tool converts GIF animations into APNG files locally using a WebAssembly engine running inside your browser. The conversion extracts each frame, retains frame delays and loop counts, and repackages the image sequence into an APNG container without sending data over the network. Converting an 8-bit GIF does not automatically restore discarded color depth from the original video source, but it prevents further degradation. Audio tracks do not exist in GIF or APNG specifications, so none are processed. The resulting file works across modern web frameworks, user interface prototypes, and sticker packages requiring crisp alpha blending.
Frequently asked questions
Will converting a GIF to APNG restore full 24-bit truecolor quality?
No. The converter preserves the exact visual data of the source GIF losslessly, but it cannot recreate color shades or gradients that were discarded when the original GIF palette was reduced to 256 colors.
Why is the resulting APNG file larger than the source GIF?
APNG uses PNG frame structures and Deflate compression, which sometimes produce larger bitstreams than GIF LZW compression on indexed 8-bit graphics. If compact file size is critical, consider converting to animated WebP instead.
Are my uploaded GIF files processed on an external server?
No. All decoding and encoding happen entirely within your browser tab using WebAssembly, ensuring your files never leave your computer or phone.
Guides
Articles and format references related to this tool.
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