APNG to GIF Converter

APNG is a genuine extension of the PNG format, but a program has to be built to recognise the extra animation chunks — otherwise it falls back to reading the file as an ordinary single-frame PNG, showing just the first frame with no error and no obvious sign anything is wrong. That is a common way an animation quietly turns into a still image after being pasted into a forum post, a messaging app or an older content management system.

GIF, despite being decades older, remains the one animation format nearly every platform has explicitly supported since the 1990s, which is why converting to it is still the reliable fallback when a destination cannot be trusted to handle APNG.

The trade-off is colour depth: APNG supports full 24-bit colour and per-pixel transparency, while GIF is limited to 256 colours per frame and only fully-on or fully-off transparency, no partial fade. A GIF converted from a smooth gradient or a soft drop shadow can show visible banding — distinct colour bands instead of a smooth blend — where the APNG had none.

For flat-coloured animations, simple icons or line-art loops, 256 colours is often more than enough and the difference is barely visible. For photographic or gradient-heavy animations, expect some visible stepping in the colour transitions after conversion; that is a property of the GIF format, not a flaw in the conversion.

Each frame’s individual display duration from the APNG is read and written into the GIF’s own per-frame delay field, so a loop that pauses briefly on one frame and moves quickly through others keeps that same rhythm after conversion. Looping behaviour — play once, loop forever, loop a set number of times — is preserved the same way, so the GIF plays back at the same speed and repeats the same way the APNG did.

The APNG’s frames are decoded, quantised to GIF’s palette and re-assembled entirely on your device, so animations you have not published yet — a product demo, an app walkthrough — are not sent anywhere in the process. Add several APNGs and each is converted separately, then downloaded individually or as a batch, without an account or a size-limited upload form standing in the way.