Licenses & credits
BRev Free Tools is built on open-source software. Every package bundled into these tools is listed below with the license read from its published package — this page is both the attribution those licenses ask for, and genuine thanks to their authors.
Documents & PDF
| Package | License |
|---|---|
| pdf-lib | MIT |
| @pdf-lib/fontkit | MIT |
| pdfjs-dist (PDF.js) | Apache-2.0 |
| mammoth | BSD-2-Clause |
| xlsx (SheetJS CE) | Apache-2.0 |
| jszip dual-licensed (MIT OR GPL-3.0-or-later); used under MIT | MIT |
Media, imaging & AI
| Package | License |
|---|---|
| @ffmpeg/ffmpeg + @ffmpeg/util | MIT |
| @ffmpeg/core (FFmpeg) loaded as a separate, unmodified WebAssembly asset (never linked into our code); source: github.com/ffmpegwasm/ffmpeg.wasm and ffmpeg.org | GPL-2.0-or-later |
| tesseract.js | Apache-2.0 |
| @huggingface/transformers (Whisper) | Apache-2.0 |
| @tensorflow/tfjs · upscaler · @upscalerjs/esrgan-slim | Apache-2.0 / MIT |
| three · @react-three/fiber · @react-three/drei · maath | MIT |
| imagetracerjs | Unlicense (public domain) |
| vtracer-wasm (VTracer) wrapper of visioncortex/vtracer (MIT/Apache-2.0); wrapper repo: github.com/jsscheller/vtracer-wasm | no license field published |
| qrcode | MIT |
| jsqr | Apache-2.0 |
Developer tools
| Package | License |
|---|---|
| quicktype-core the JSON → types engine | Apache-2.0 |
| curlconverter the curl → code engine | MIT |
| sql-formatter | MIT |
| yaml (eemeli) | ISC |
| smol-toml | BSD-3-Clause |
| json5 | MIT |
| fast-xml-parser | MIT |
| xml-formatter | MIT |
| fetch-to-curl | MIT |
| croner | MIT |
| cronstrue | MIT |
| cron-validate | MIT |
| chrono-node | MIT |
| change-case | MIT |
| slugify | MIT |
| @danielhaim/titlecaser | Apache-2.0 |
Framework
| Package | License |
|---|---|
| Next.js · React · React DOM | MIT |
What the licenses require
MIT, ISC, BSD and Apache-2.0 ask that the copyright notice travels with the software — this page, together with the license texts inside each package in our published bundle, satisfies that. Apache-2.0 additionally grants a patent license. FFmpeg’s core is GPL: we ship it as a separate, unmodified WebAssembly file loaded at runtime, and its complete source is available from the upstream projects linked above. Full license texts ship with each package; upstream repositories carry the canonical copies.