Encode an ordered PNG sequence into a real animated GIF.
Your input
Outputs are cleared when the input changes.
Result
Enter your data or use the example, then run the tool.
Worked example
The sample generates two original colored PNGs and encodes a red/green animation at 200 ms per frame.
Method
gif.js GIFEncoder, NeuQuant and LZW run in a disposable worker. Input PNGs are letterboxed on white in selection order, quantized and written as actual GIF89a bytes.
Limits
2–30 static PNGs, each ≤5 MiB / 8 million pixels, total input ≤30 MiB. Output 16–800 pixels per side and output pixels×frames ≤6 million. APNG, JPEG and WebP inputs are not supported. GIF has at most 256 palette colors per frame, no full alpha and no lossless true-color guarantee. Delays are quantized to 10 ms. Large sequences can time out.
All work stays in this browser. Each disposable worker is terminated after 2.5 seconds or cancellation. Inputs and processing logs are not sent to analytics.
Your inputs stay on this device. Only optional, consented page visits are measured. Input values, files, filenames and processing logs are not sent to Analytics.
When switching languages, text, settings and selected files are temporarily kept on this device. Transfers are removed after restoring; interrupted transfers are cleaned up on a later visit. Inputs and files are never uploaded.