Open-source licenses
Last updated: 3 November 2026
NextFileTools is built on open-source software, models and fonts from many projects. Thank you to everyone who made them. Below is each component and its license.
Libraries that run in your browser
- pdf.js (Mozilla) — Apache-2.0
- pdf-lib, @pdf-lib/fontkit — MIT
- HarfBuzz (harfbuzzjs) — MIT (Old MIT)
- qpdf (qpdf-wasm) — Apache-2.0 / ISC
- ONNX Runtime Web (Microsoft) — MIT
- OpenCV.js — Apache-2.0
- heic-to (libheif, libde265) — LGPL-3.0
- docx, JSZip, gifenc, qrcode, promptpay-qr — MIT
- Next.js, React, lucide-react — MIT / ISC
Server-side libraries (document translator)
- Anthropic TypeScript SDK (@anthropic-ai/sdk), @opentelemetry/api — Apache-2.0
- standardwebhooks, json-schema-to-ts — MIT
OCR models
- PaddleOCR PP-OCRv5 (text detection and Thai recognition models) — PaddlePaddle — Apache-2.0
Fonts
- Sarabun, Niramit, Taviraj, Kanit, Prompt, Mitr, Chakra Petch, Charmonman, Sriracha — SIL Open Font License 1.1
- IBM Plex Sans Thai (IBM, Reserved Font Name “Plex”) — SIL Open Font License 1.1
Full license texts
The full license texts of every package, font and model, including where to get the libheif and libde265 source code under LGPL-3.0, are in third-party-licenses.txt.