Open-source licenses & attributions
Sunasty is built with open-source software. The libraries below run in your browser to power the tools, we gratefully acknowledge their authors and reproduce their licenses here.
Video and audio tools use FFmpeg compiled to WebAssembly, licensed under the GNU GPL v2 or later. Its complete corresponding source is available at the linked repository.
| Component | Powers | License |
|---|---|---|
| FFmpeg (ffmpeg.wasm core) | Video & audio processing | GPL-2.0-or-later |
| @ffmpeg/ffmpeg | ffmpeg.wasm JS wrapper | MIT |
| qpdf (via @neslinesli93/qpdf-wasm) | PDF unlock (decrypt) | Apache-2.0 (qpdf) / ISC (wrapper) |
| pdf-lib | PDF editing & creation | MIT |
| pdf-lib-plus-encrypt | PDF password encryption | MIT |
| pdf.js (pdfjs-dist) | PDF rendering & text extraction | Apache-2.0 |
| jsPDF | HTML → PDF | MIT |
| html2canvas | HTML → PDF rasterisation | MIT |
| DOMPurify | HTML sanitisation | MPL-2.0 OR Apache-2.0 |
| Tesseract.js | OCR (image/PDF → text) | Apache-2.0 |
| jSquash (@jsquash/*) | Image codecs (AVIF/JPEG/PNG/WebP) | Apache-2.0 |
| libarchive.js | Archive extraction (zip/rar/7z/tar) | MIT (libarchive: BSD-2-Clause) |
| heic2any | HEIC → JPG conversion | MIT |
| exifr | EXIF metadata reading | MIT |
| c2pa | C2PA Content Credentials | MIT |
| mammoth | Word (.docx) → HTML | BSD-2-Clause |
| jsQR | QR code scanning | Apache-2.0 |
| qr-code-styling | QR code generation | MIT |
| SVGO | SVG optimisation | MIT |
| js-yaml | YAML parsing | MIT |
| marked | Markdown rendering | MIT |
| fflate | Zip compression | MIT |
| Preact | UI islands | MIT |
| Astro | Static site framework | MIT |
| exchange-api (fawazahmed0) | Currency converter daily rates (public data) | Public data — CC0 |