GIF compression engine notices Gifsicle 1.92: Copyright Eddie Kohler and contributors. GPL version 2 or later; see GPL-2.0.txt. No warranty. https://github.com/kohler/gifsicle/tree/v1.92 Browser wrapper: gifsicle-wasm-browser 1.5.19, renzhezhilu, MIT; see MIT-wrapper.txt. https://github.com/renzhezhilu/gifsicle-wasm-browser Source snapshot: 7033183ee0db22bb339a878571d743b9642e1c77 The standalone worker payload was extracted from the fixed npm release without changing its engine or protocol. WASM is embedded in the worker; it needs no third-party runtime download. The application sends input.gif and a CLI command through postMessage and terminates each worker after completion or cancellation. Source download (same origin): source-1.5.19.tar.gz This archive contains the npm release, wrapper sources, embedded engine sources, Gifsicle 1.92 C source and upstream wasm-codecs build scripts. See browser-wrapper/src/build.js and wasm-codecs/packages/gifsicle/{Dockerfile,build.sh}. Extraction: evaluate the npm dist/gifsicle.min.js in a Node VM after replacing its final export with gifsicle; write tool.workerLocalUrl to gifsicle-1.5.19.worker.js. No change to the worker body. Npm archive SHA-256: a93809aa0aefe3a3a9f402ccc9f5d0f1318b2a987cd221a09ff75ddc236c32ec