Open-source notices

FilesAll is built on the work of many open-source projects. Thank you to everyone who makes them.

Last updated: October 19, 2026

Libraries under the LGPL

Two libraries are licensed under the GNU Lesser General Public License (LGPL). FilesAll loads each one as its own separate file, only when a tool needs it, so you can swap in your own build. Their source code is available at the links below.

Library	Used for	Licence	Source
LAME 3.100, through @mediabunny/mp3-encoder 1.61.5	Writing MP3 files in MP4 to MP3	LGPL-2.0	lame.sourceforge.io, licence
libheif and libde265, through libheif-js 1.23.2	Opening HEIC photos from iPhones	LGPL-3.0	libheif-js, libheif, libde265

LAME 3.100, through @mediabunny/mp3-encoder 1.61.5

Used for: Writing MP3 files in MP4 to MP3
Licence: LGPL-2.0
Source: lame.sourceforge.io, licence

libheif and libde265, through libheif-js 1.23.2

Used for: Opening HEIC photos from iPhones
Licence: LGPL-3.0
Source: libheif-js, libheif, libde265

LAME is licensed under the GNU Library General Public License version 2 (full text). libheif and libde265 are licensed under the GNU LGPL version 3 (full text).

Libraries that run in your browser

Library	Used for	Licence
PDF.js 6.4 (pdfjs-dist)	Showing PDF pages, reading their text, turning pages into images	Apache-2.0
pdf-lib 1.17	Merging, splitting, rotating and signing PDFs	MIT
qpdf-wasm 0.3 (qpdf)	Opening damaged or locked PDFs, compressing PDFs	ISC (qpdf: Apache-2.0)
jSquash: jpeg, png, oxipng, resize, webp	Reading, writing, shrinking and resizing JPG, PNG and WebP images	Apache-2.0 (libwebp: BSD-3-Clause)
omggif 1.0, gifenc 1.0	Shrinking GIFs, animated ones included	MIT
VTracer 1.0 (@visioncortex/vtracer)	Turning PNG and JPG pictures into SVG	MIT OR Apache-2.0
Mediabunny 1.61	Reading the sound from MP4, MOV and M4A videos	MPL-2.0
fflate 0.8	Making ZIP files for Download all	MIT
Comlink 4.4	Running tools in the background	Apache-2.0
React 19	Buttons and screens of the tools	MIT

PDF.js 6.4 (pdfjs-dist)

Used for: Showing PDF pages, reading their text, turning pages into images
Licence: Apache-2.0

pdf-lib 1.17

Used for: Merging, splitting, rotating and signing PDFs
Licence: MIT

qpdf-wasm 0.3 (qpdf)

Used for: Opening damaged or locked PDFs, compressing PDFs
Licence: ISC (qpdf: Apache-2.0)

jSquash: jpeg, png, oxipng, resize, webp

Used for: Reading, writing, shrinking and resizing JPG, PNG and WebP images
Licence: Apache-2.0 (libwebp: BSD-3-Clause)

omggif 1.0, gifenc 1.0

Used for: Shrinking GIFs, animated ones included
Licence: MIT

VTracer 1.0 (@visioncortex/vtracer)

Used for: Turning PNG and JPG pictures into SVG
Licence: MIT OR Apache-2.0

Mediabunny 1.61

Used for: Reading the sound from MP4, MOV and M4A videos
Licence: MPL-2.0

fflate 0.8

Used for: Making ZIP files for Download all
Licence: MIT

Comlink 4.4

Used for: Running tools in the background
Licence: Apache-2.0

React 19

Used for: Buttons and screens of the tools
Licence: MIT

Tools used to build the site

The site is built with Astro (MIT) and styled with Tailwind CSS (MIT). Our usage service uses jose (MIT) to check sign-in tokens.

Questions

If you believe a notice is missing or wrong, please tell us and we will fix it. Each library keeps its own copyright and licence. FilesAll itself is not open source.