Open-source notices
LevelUp Audio uses publicly available media-processing tools. All media processing runs in your browser; files are not sent to a server.
FFmpeg and ffmpeg.wasm
Versions used:@ffmpeg/core 0.12.10, FFmpeg n5.1.4. The distributed engine is an unmodified public release from the upstream project. Its WebAssembly file is split into chunks to reduce transfer size, reassembled into the original bytes at runtime, and checked against a SHA-256 integrity hash.
- Full GNU GPL v3 license
- ffmpeg.wasm 0.12.10 source and build configuration
- FFmpeg and external library versions and source configuration
- FFmpeg n5.1.4 source
- Distributed engine version and integrity hashes
This build includes GPL features and x264, x265, libvpx, LAME, Ogg, Theora, Opus, Vorbis, zlib, WebP, FreeType, FriBidi, HarfBuzz, libass, and zimg. Copyright, license, and source information for each component appears in the corresponding upstream source directories and build configuration.
Site source code
Download the site's HTML, CSS, JavaScript, and browser-processing code below. Service outputs and temporary browser files are not included in the source.