Open-source notices
The GIF optimizer includes Gifsicle 1.92, copyright Eddie Kohler and contributors, distributed under the GNU General Public License version 2.
- GPL version 2 license
- Gifsicle 1.92 source archive
- Upstream browser wrapper and build source archive
- Upstream WebAssembly build instructions
The browser wrapper is gifsicle-wasm-browser 1.5.19 (MIT). Other processing libraries include gifuct-js, gifenc and fflate (MIT). Gifsicle is used without modifications to its engine.