The tools on KeepLocalHub are built on open-source software. Thank you to everyone who makes and maintains these projects. Each one is used unmodified, as published, under its own licence.
| Library | Used for | Licence |
|---|---|---|
| jSquash (from Google's Squoosh), with MozJPEG, libwebp, libavif, OxiPNG and the Squoosh resizer | Reading and saving JPG, PNG, WebP and AVIF, PNG optimisation, resizing | Apache-2.0 (jSquash); the codecs' own licences: MozJPEG (IJG/BSD-style), libwebp (BSD-3-Clause), libavif (BSD-2-Clause), OxiPNG (MIT) |
| libheif-js (libheif by struktur AG) | Reading HEIC and HEIF photos | LGPL-3.0. Used unmodified, loaded as a separate file. The source is available at the links on the left; you may replace the library with your own build. |
| pdf-lib | Merging, splitting and organising PDFs, building PDFs from images, compression | MIT |
| PDF.js by Mozilla | Reading and drawing PDF pages (thumbnails, PDF to JPG, strong compression), with its fonts and image decoders | Apache-2.0 (bundled fonts and decoders under their own licences, included with the files) |
| QPDF (WebAssembly build qpdf-wasm) | Removing PDF restrictions (Unlock PDF, and PDFs with edit restrictions in the other PDF tools) | Apache-2.0 (QPDF); ISC (WebAssembly build) |
| exifr | Reading photo details (EXIF, GPS, XMP) | MIT |
| fflate | Making ZIP files of your results | MIT |
| Inter and Plus Jakarta Sans | The site's fonts, served from this site | SIL Open Font License 1.1 |
| Astro | Building the site's pages | MIT |
The full licence text of every library is in third-party-licenses.txt. The metadata removal, the EXIF writer and the HEIC metadata reader are this site's own small modules. If you think a licence notice is missing or wrong, please use the contact form.