Third-party licenses

Every part of fileclay made by other people, with its license and source. Our own license covers only our code.

The conversion engine is FFmpeg, under the GNU GPL version 2 or later. Download its complete source.

These components are provided without warranty, as stated in each license. License texts are served in their original language.

Search components

FFmpegGNU General Public License v2.0 or later
x264GPL-2.0-or-later
x265GPL-2.0-or-later
LAMELGPL-2.0-or-later
FriBidiLGPL-2.1-or-later
FreeTypeFTL (or GPL-2.0-or-later)
libvpxBSD-3-Clause
OggBSD-3-Clause
TheoraBSD-3-Clause
OpusBSD-3-Clause
VorbisBSD-3-Clause
libwebpBSD-3-Clause
HarfBuzzMIT (Old MIT)
libassISC
zlibZlib
zimgWTFPL
@cantoo/pdf-libMIT
@dnd-kit/accessibilityMIT
@dnd-kit/coreMIT
@dnd-kit/sortableMIT
@dnd-kit/utilitiesMIT
@ffmpeg/ffmpegMIT
@ffmpeg/utilMIT
@jonahschulte/rtf-toolkitMIT
@jsquash/avifApache-2.0
@noble/ciphersMIT
@noble/hashesMIT
@swc/helpersApache-2.0
@xmldom/xmldomMIT
base64-jsMIT
base64-jsMIT
brotliMIT
cloneMIT
core-util-isMIT
culoriMIT
dfaMIT
dingbat-to-unicodeBSD-2-Clause
docxMIT
entitiesBSD-2-Clause
exifrMIT
fast-deep-equalMIT
fflateMIT
fontkitMIT
heic-toLGPL-3.0
html-entitiesMIT
immediateMIT
inheritsISC
isarrayMIT
jszipMIT OR GPL-3.0-or-later
lieMIT
linebreakMIT
lopBSD-2-Clause
lucide-reactISC
mammothBSD-2-Clause
markedMIT
mediabunnyMPL-2.0
modern-tarMIT
node-html-better-parserMIT
odf-kitApache-2.0
optionBSD-2-Clause
pakoMIT AND Zlib
pakoMIT
parse5MIT
pdfjs-distApache-2.0
pdfkitMIT
pdfmakeMIT
png-jsMIT
pptxgenjsMIT
process-nextick-argsMIT
reactMIT
react-domMIT
readable-streamMIT
restructureMIT
safe-bufferMIT
saxBlueOak-1.0.0
schedulerMIT
setimmediateMIT
string_decoderMIT
tiny-inflateMIT
tslib0BSD
underscoreMIT
unicode-propertiesMIT
unicode-trieMIT
util-deprecateMIT
xlsxApache-2.0
xmlbuilderMIT
xmldocMIT
JBIG2BSD-3-Clause, Apache-2.0
OpenJPEGBSD-2-Clause
QCMSMIT
DM SansSIL Open Font License 1.1
ManropeSIL Open Font License 1.1
RobotoApache-2.0

Conversion engine

FFmpeg

Compiled to WebAssembly by the ffmpeg.wasm project and served unmodified. It runs as a separate program in its own worker. You may copy, modify and redistribute it under the terms of the GPL. FFmpeg is a trademark of Fabrice Bellard.

Version: FFmpeg n5.1.4, @ffmpeg/core 0.12.10
License: GNU General Public License v2.0 or later. Full text
Copyright: The FFmpeg project and its authors
Source: Download the complete source · ffmpeg.wasm
Build: Build recipe · Source manifest · Checksums

Engine library

x264

Compiled inside the conversion engine.

Version: 4-cores
License: GPL-2.0-or-later. Full text
Copyright: Held by its authors, as stated in its source
Source: Download the complete source · ffmpegwasm/x264

Engine library

x265

Compiled inside the conversion engine.

Version: 3.4
License: GPL-2.0-or-later. Full text
Copyright: Held by its authors, as stated in its source
Source: Download the complete source · ffmpegwasm/x265

Engine library

LAME

Compiled inside the conversion engine. Under the LGPL you may replace it with your own version: the complete source and the build recipe let you rebuild the engine with it.

Version: master
License: LGPL-2.0-or-later. Full text
Copyright: Held by its authors, as stated in its source
Source: Download the complete source · ffmpegwasm/lame

Engine library

FriBidi

Compiled inside the conversion engine. Under the LGPL you may replace it with your own version: the complete source and the build recipe let you rebuild the engine with it.

Version: v1.0.9
License: LGPL-2.1-or-later. Full text
Copyright: Held by its authors, as stated in its source
Source: Download the complete source · fribidi/fribidi

Engine library

FreeType

Compiled inside the conversion engine.

Version: VER-2-10-4
License: FTL (or GPL-2.0-or-later). Full text
Copyright: Held by its authors, as stated in its source
Source: Download the complete source · ffmpegwasm/freetype2

Engine library

libvpx

Compiled inside the conversion engine.

Version: v1.13.1
License: BSD-3-Clause. Full text
Copyright: Copyright (c) 2010, The WebM Project authors. All rights reserved.
Source: Download the complete source · ffmpegwasm/libvpx

Engine library

Ogg

Compiled inside the conversion engine.

Version: v1.3.4
License: BSD-3-Clause. Full text
Copyright: Copyright (c) 2002, Xiph.org Foundation
Source: Download the complete source · ffmpegwasm/Ogg

Engine library

Theora

Compiled inside the conversion engine.

Version: v1.1.1
License: BSD-3-Clause. Full text
Copyright: Copyright (C) 2002-2009 Xiph.org Foundation
Source: Download the complete source · ffmpegwasm/theora

Engine library

Opus

Compiled inside the conversion engine.

Version: v1.3.1
License: BSD-3-Clause. Full text
Copyright: Copyright 2001-2011 Xiph.Org, Skype Limited, Octasic,
Source: Download the complete source · ffmpegwasm/opus

Engine library

Vorbis

Compiled inside the conversion engine.

Version: v1.3.3
License: BSD-3-Clause. Full text
Copyright: Copyright (c) 2002-2008 Xiph.org Foundation
Source: Download the complete source · ffmpegwasm/vorbis

Engine library

libwebp

Compiled inside the conversion engine.

Version: v1.3.2
License: BSD-3-Clause. Full text
Copyright: Copyright (c) 2010, Google Inc. All rights reserved.
Source: Download the complete source · ffmpegwasm/libwebp

Engine library

HarfBuzz

Compiled inside the conversion engine.

Version: 5.2.0
License: MIT (Old MIT). Full text
Copyright: Copyright © 2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020 Google, Inc. · Copyright © 2018,2019,2020 Ebrahim Byagowi
Source: Download the complete source · harfbuzz/harfbuzz

Engine library

libass

Compiled inside the conversion engine.

Version: 0.15.0
License: ISC. Full text
Copyright: Copyright (C) 2006-2016 libass contributors
Source: Download the complete source · libass/libass

Engine library

zlib

Compiled inside the conversion engine.

Version: v1.2.11
License: Zlib. Full text
Copyright: Held by its authors, as stated in its source
Source: Download the complete source · ffmpegwasm/zlib

Engine library

zimg

Compiled inside the conversion engine.

Version: release-3.0.5
License: WTFPL. Full text
Copyright: Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
Source: Download the complete source · sekrit-twc/zimg

Package

@cantoo/pdf-lib

Version: 2.11.1
License: MIT. Full text
Copyright: Copyright (c) 2019 Andrew Dillon
Source: github.com/cantoo-scribe/pdf-lib

Package

@dnd-kit/accessibility

Version: 3.1.1
License: MIT. Full text
Copyright: Copyright (c) 2021, Claudéric Demers
Source: github.com/clauderic/dnd-kit

Package

@dnd-kit/core

Version: 6.3.1
License: MIT. Full text
Copyright: Copyright (c) 2021, Claudéric Demers
Source: github.com/clauderic/dnd-kit

Package

@dnd-kit/sortable

Version: 10.0.0
License: MIT. Full text
Copyright: Copyright (c) 2021, Claudéric Demers
Source: github.com/clauderic/dnd-kit

Package

@dnd-kit/utilities

Version: 3.2.2
License: MIT. Full text
Copyright: Copyright (c) 2021, Claudéric Demers
Source: github.com/clauderic/dnd-kit

Package

@ffmpeg/ffmpeg

Version: 0.12.15
License: MIT. Full text
Copyright: Copyright (c) 2019 Jerome Wu
Source: github.com/ffmpegwasm/ffmpeg.wasm

Package

@ffmpeg/util

Version: 0.12.2
License: MIT. Full text
Copyright: Copyright (c) 2019 Jerome Wu
Source: github.com/ffmpegwasm/ffmpeg.wasm

Package

@jonahschulte/rtf-toolkit

Version: 0.5.0
License: MIT. Full text
Copyright: Copyright (c) 2025 Jonah Schulte
Source: github.com/jonahschulte/rtf-toolkit

Package

@jsquash/avif

Version: 2.1.1
License: Apache-2.0. Full text
Copyright: Copyright [2023] jamsinclair
Source: github.com/jamsinclair/jSquash

Package

@noble/ciphers

Version: 1.3.0
License: MIT. Full text
Copyright: Copyright (c) 2022 Paul Miller (https://paulmillr.com) · Copyright (c) 2016 Thomas Pornin <pornin@bolet.org>
Source: github.com/paulmillr/noble-ciphers

Package

@noble/hashes

Version: 1.8.0
License: MIT. Full text
Copyright: Copyright (c) 2022 Paul Miller (https://paulmillr.com)
Source: github.com/paulmillr/noble-hashes

Package

@swc/helpers

Version: 0.5.23
License: Apache-2.0. Full text
Copyright: Copyright 2024 SWC contributors.
Source: github.com/swc-project/swc

Package

@xmldom/xmldom

Version: 0.8.15
License: MIT. Full text
Copyright: Copyright 2019 - present Christopher J. Brody and other contributors, as listed in: https://github.com/xmldom/xmldom/graphs/contributors · Copyright 2012 - 2017 @jindw <jindw@xidea.org> and other contributors, as listed in: https://github.com/jindw/xmldom/graphs/contributors
Source: github.com/xmldom/xmldom

Package

base64-js

Version: 1.5.1
License: MIT. Full text
Copyright: Copyright (c) 2014 Jameson Little
Source: github.com/beatgammit/base64-js

Package

base64-js

Version: 0.0.8
License: MIT. Full text
Copyright: Copyright (c) 2014 Jameson Little
Source: github.com/beatgammit/base64-js

Package

brotli

Version: 1.3.3
License: MIT. Full text
Copyright: Copyright (c) Devon Govett
Source: github.com/devongovett/brotli.js

Package

clone

Version: 2.1.2
License: MIT. Full text
Copyright: Copyright © 2011-2015 Paul Vorbach <paul@vorba.ch>
Source: github.com/pvorb/node-clone

Package

core-util-is

Version: 1.0.3
License: MIT. Full text
Copyright: Copyright Node.js contributors. All rights reserved.
Source: github.com/isaacs/core-util-is

Package

culori

Version: 4.0.2
License: MIT. Full text
Copyright: Copyright (c) 2018 Dan Burzo
Source: github.com/Evercoder/culori

Package

dfa

Version: 1.2.0
License: MIT. Full text
Copyright: Copyright (c) Devon Govett
Source: github.com/devongovett/dfa

Package

dingbat-to-unicode

Version: 1.0.2
License: BSD-2-Clause. Full text
Copyright: Copyright (c) 2021, Michael Williamson
Source: github.com/mwilliamson/dingbat-to-unicode

Package

docx

Version: 9.14.0
License: MIT. Full text
Copyright: Copyright (c) 2016 Dolan
Source: github.com/dolanmiu/docx

Package

entities

Version: 9.0.0
License: BSD-2-Clause. Full text
Copyright: Copyright (c) Felix Böhm
Source: github.com/fb55/entities

Package

exifr

Version: 7.1.3
License: MIT. Full text
Copyright: Copyright (c) 2020 Mike Kovařík, Mutiny.cz
Source: github.com/MikeKovarik/exifr

Package

fast-deep-equal

Version: 3.1.3
License: MIT. Full text
Copyright: Copyright (c) 2017 Evgeny Poberezkin
Source: github.com/epoberezkin/fast-deep-equal

Package

fflate

Version: 0.8.3
License: MIT. Full text
Copyright: Copyright (c) 2026 Arjun Barrett
Source: github.com/101arrowz/fflate

Package

fontkit

Version: 2.0.4
License: MIT. Full text
Copyright: Copyright (c) 2014-present Devon Govett
Source: github.com/foliojs/fontkit

Package

heic-to

Loaded as a separate file when you open a HEIC image. Under the LGPL you may replace it with your own version in a copy of the page.

Version: 1.6.7
License: LGPL-3.0. Full text · GPL-3.0 text
Copyright: Held by its authors, as stated in its source
Source: github.com/hoppergee/heic-to

Package

html-entities

Version: 2.6.0
License: MIT. Full text
Copyright: Copyright (c) 2021 Dulin Marat
Source: github.com/mdevils/html-entities

Package

immediate

Version: 3.0.6
License: MIT. Full text
Copyright: Copyright (c) 2012 Barnesandnoble.com, llc, Donavon West, Domenic Denicola, Brian Cavalier
Source: github.com/calvinmetcalf/immediate

Package

inherits

Version: 2.0.4
License: ISC. Full text
Copyright: Copyright (c) Isaac Z. Schlueter
Source: github.com/isaacs/inherits

Package

isarray

Version: 1.0.0
License: MIT. Full text
Copyright: Copyright (c) 2013 Julian Gruber <julian@juliangruber.com>
Source: github.com/juliangruber/isarray

Package

jszip

Version: 3.10.2
License: MIT OR GPL-3.0-or-later. Full text
Copyright: Copyright (c) 2009-2016 Stuart Knightley, David Duponchel, Franz Buchinger, António Afonso
Source: github.com/Stuk/jszip

Package

lie

Version: 3.3.0
License: MIT. Full text
Copyright: Copyright (c) 2014-2018 Calvin Metcalf, Jordan Harband
Source: github.com/calvinmetcalf/lie

Package

linebreak

Version: 1.1.0
License: MIT. Full text
Copyright: Copyright (c) 2014-present Devon Govett
Source: github.com/devongovett/linebreaker

Package

lop

Version: 0.4.2
License: BSD-2-Clause. Full text
Copyright: Copyright (c) 2013, Michael Williamson
Source: github.com/mwilliamson/lop

Package

lucide-react

Version: 0.468.0
License: ISC. Full text
Copyright: Copyright (c) for portions of Lucide are held by Cole Bemis 2013-2022 as part of Feather (MIT). All other copyright (c) for Lucide are held by Lucide Contributors 2022.
Source: github.com/lucide-icons/lucide

Package

mammoth

Version: 1.13.0
License: BSD-2-Clause. Full text
Copyright: Copyright (c) 2013, Michael Williamson
Source: github.com/mwilliamson/mammoth.js

Package

marked

Version: 18.1.2
License: MIT. Full text
Copyright: Copyright (c) 2018+, MarkedJS (https://github.com/markedjs/) · Copyright (c) 2011-2018, Christopher Jeffrey (https://github.com/chjj/)
Source: github.com/markedjs/marked

Package

mediabunny

Version: 1.62.1
License: MPL-2.0. Full text
Copyright: Held by its authors, as stated in its source
Source: github.com/Vanilagy/mediabunny

Package

modern-tar

Version: 0.8.6
License: MIT. Full text
Copyright: Copyright (c) 2025 Ayuhito
Source: github.com/ayuhito/modern-tar

Package

node-html-better-parser

Version: 1.5.9
License: MIT. Full text
Copyright: Copyright 2019 Tao Qiufeng
Source: github.com/Sharcoux/node-html-parser

Package

odf-kit

Version: 0.14.5
License: Apache-2.0. Full text
Copyright: Copyright 2026 odf-kit contributors
Source: github.com/GitHubNewbie0/odf-kit

Package

option

Version: 0.2.4
License: BSD-2-Clause. Full text
Copyright: Copyright (c) 2013, Michael Williamson
Source: github.com/mwilliamson/node-options

Package

pako

Version: 1.0.11
License: MIT AND Zlib. Full text
Copyright: Copyright (C) 2014-2017 by Vitaly Puzrin and Andrei Tuputcyn
Source: github.com/nodeca/pako

Package

pako

Version: 0.2.9
License: MIT. Full text
Copyright: Copyright (C) 2014-2016 by Vitaly Puzrin
Source: github.com/nodeca/pako

Package

parse5

Version: 8.1.1
License: MIT. Full text
Copyright: Copyright (c) 2013-2019 Ivan Nikulin (ifaaan@gmail.com, https://github.com/inikulin)
Source: github.com/inikulin/parse5

Package

pdfjs-dist

Version: 6.3.289
License: Apache-2.0. Full text
Copyright: Held by its authors, as stated in its source
Source: github.com/mozilla/pdf.js

Package

pdfkit

Version: 0.20.2
License: MIT. Full text
Source: github.com/foliojs/pdfkit

Package

pdfmake

Version: 0.3.13
License: MIT. Full text
Source: github.com/bpampuch/pdfmake

Package

png-js

Version: 2.0.0
License: MIT. Full text
Source: github.com/devongovett/png.js

Package

pptxgenjs

Version: 4.0.1
License: MIT. Full text
Source: github.com/gitbrent/PptxGenJS

Package

process-nextick-args

Version: 2.0.1
License: MIT. Full text
Source: github.com/calvinmetcalf/process-nextick-args

Package

react

Version: 18.3.1
License: MIT. Full text
Copyright: Copyright (c) Facebook, Inc. and its affiliates.
Source: github.com/facebook/react

Package

react-dom

Version: 18.3.1
License: MIT. Full text
Copyright: Copyright (c) Facebook, Inc. and its affiliates.
Source: github.com/facebook/react

Package

readable-stream

Version: 2.3.8
License: MIT. Full text
Source: github.com/nodejs/readable-stream

Package

restructure

Version: 3.0.2
License: MIT. Full text
Source: github.com/devongovett/restructure

Package

safe-buffer

Version: 5.1.2
License: MIT. Full text
Copyright: Copyright (c) Feross Aboukhadijeh
Source: github.com/feross/safe-buffer

Package

sax

Version: 1.6.1
License: BlueOak-1.0.0. Full text
Copyright: Held by its authors, as stated in its source
Source: github.com/isaacs/sax-js

Package

scheduler

Version: 0.23.2
License: MIT. Full text
Copyright: Copyright (c) Facebook, Inc. and its affiliates.
Source: github.com/facebook/react

Package

setimmediate

Version: 1.0.5
License: MIT. Full text
Copyright: Copyright (c) 2012 Barnesandnoble.com, llc, Donavon West, and Domenic Denicola
Source: github.com/YuzuJS/setImmediate

Package

string_decoder

Version: 1.1.1
License: MIT. Full text
Source: github.com/nodejs/string_decoder

Package

tiny-inflate

Version: 1.0.3
License: MIT. Full text
Source: github.com/devongovett/tiny-inflate

Package

tslib

Version: 2.8.1
License: 0BSD. Full text
Copyright: Copyright (c) Microsoft Corporation.
Source: github.com/Microsoft/tslib

Package

underscore

Version: 1.13.8
License: MIT. Full text
Copyright: Copyright (c) 2009-2022 Jeremy Ashkenas, Julian Gonggrijp, and DocumentCloud and Investigative Reporters & Editors
Source: github.com/jashkenas/underscore

Package

unicode-properties

Version: 1.4.1
License: MIT. Full text
Source: github.com/devongovett/unicode-properties

Package

unicode-trie

Version: 2.0.0
License: MIT. Full text
Source: github.com/devongovett/unicode-trie

Package

util-deprecate

Version: 1.0.2
License: MIT. Full text
Source: github.com/TooTallNate/util-deprecate

Package

xlsx

Version: 0.20.3
License: Apache-2.0. Full text
Source: git.sheetjs.com/SheetJS/sheetjs

Package

xmlbuilder

Version: 10.1.1
License: MIT. Full text
Source: github.com/oozcitak/xmlbuilder-js

Package

xmldoc

Version: 2.0.3
License: MIT. Full text
Source: github.com/nfarina/xmldoc

PDF component

JBIG2

WebAssembly module that PDF.js loads when a PDF needs it.

Version: Bundled with PDF.js
License: BSD-3-Clause, Apache-2.0. Full text · PDF.js notice
Copyright: Copyright 2014 The PDFium Authors · Copyright 2026 Mozilla Foundation
Source: github.com/mozilla/pdf.js

PDF component

OpenJPEG

WebAssembly module that PDF.js loads when a PDF needs it.

Version: Bundled with PDF.js
License: BSD-2-Clause. Full text · PDF.js notice
Source: github.com/mozilla/pdf.js

PDF component

QCMS

WebAssembly module that PDF.js loads when a PDF needs it.

Version: Bundled with PDF.js
License: MIT. Full text · PDF.js notice
Copyright: Copyright (C) 2009-2024 Mozilla Corporation · Copyright (C) 1998-2007 Marti Maria
Source: github.com/mozilla/pdf.js

Typeface

DM Sans

Used in the interface.

Version: Served from this site
License: SIL Open Font License 1.1. Full text
Copyright: Colophon Foundry
Source: github.com/googlefonts/dm-fonts

Typeface

Manrope

Used in the interface.

Version: Served from this site
License: SIL Open Font License 1.1. Full text
Copyright: Mikhail Sharanda
Source: github.com/sharanda/manrope

Typeface

Roboto

Embedded in the PDFs fileclay creates.

Version: Embedded in generated PDFs
License: Apache-2.0. Full text
Copyright: Google
Source: github.com/googlefonts/roboto