License

Babel is licensed under a three clause BSD License. It basically means: do whatever you want with it as long as the copyright in Babel sticks around, the conditions are not modified and the disclaimer is present. Furthermore you must not use the names of the authors to promote derivatives of the software without written consent.

The full license text can be found below (Babel License).

Authors

Babel is written and maintained by the Babel team and various contributors:

  • Aarni Koskela

  • Christopher Lenz

  • Armin Ronacher

  • Alex Morega

  • Lasse Schuirmann

  • Felix Schwarz

  • Pedro Algarvio

  • Jeroen Ruigrok van der Werven

  • Philip Jenvey

  • benselme

  • Isaac Jurado

  • Tomas R.

  • Tobias Bieniek

  • Erick Wilder

  • Jonah Lawrence

  • Michael Birtwell

  • Jonas Borgström

  • Kevin Deldycke

  • Ville Skyttä

  • Jon Dufresne

  • Hugo van Kemenade

  • Jun Omae

  • Heungsub Lee

  • Jakob Schnitzer

  • Sachin Paliwal

  • Alex Willmer

  • Daniel Neuhäuser

  • Miro Hrončok

  • Cédric Krier

  • Luke Plant

  • Jennifer Wang

  • Lukas Balaga

  • sudheesh001

  • Jean Abou Samra

  • Niklas Hambüchen

  • Changaco

  • Xavier Fernandez

  • KO. Mattsson

  • Sébastien Diemer

  • alexbodn@gmail.com

  • saurabhiiit

  • srisankethu

  • Erik Romijn

  • Lukas B

  • Ryan J Ollos

  • Arturas Moskvinas

  • Leonardo Pistone

  • Hyunjun Kim

  • wandrew004

  • James McKinney

  • Tomáš Hrnčiar

  • Gabe Sherman

  • mattdiaz007

  • Dylan Kiss

  • Daniel Roschka

  • buhtz

  • Bohdan Malomuzh

  • Leonid

  • Ronan Amicel

  • Christian Clauss

  • Best Olunusi

  • Teo

  • Ivan Koldakov

  • Rico Hermans

  • Daniel

  • Oleh Prypin

  • Petr Viktorin

  • Jean Abou-Samra

  • Joe Portela

  • Marc-Etienne Vargenau

  • Michał Górny

  • Alex Waygood

  • Maciej Olko

  • martin f. krafft

  • DS/Charlie

  • lilinjie

  • Johannes Wilm

  • Eric L

  • Przemyslaw Wegrzyn

  • Lukas Kahwe Smith

  • Lukas Juhrich

  • Nikita Sobolev

  • Raphael Nestler

  • Frank Harrison

  • Nehal J Wani

  • Mohamed Morsy

  • Krzysztof Jagiełło

  • Morgan Wahl

  • farhan5900

  • Sigurd Ljødal

  • Andrii Oriekhov

  • rachele-collin

  • Lukas Winkler

  • Juliette Monsel

  • Álvaro Mondéjar Rubio

  • ruro

  • Alessio Bogon

  • Nikiforov Konstantin

  • Abdullah Javed Nesar

  • Brad Martin

  • Tyler Kennedy

  • CyanNani123

  • sebleblanc

  • He Chen

  • Steve (Gadget) Barnes

  • Romuald Brunet

  • Mario Frasca

  • BT-sschmid

  • Alberto Mardegan

  • mondeja

  • NotAFile

  • Julien Palard

  • Brian Cappello

  • Serban Constantin

  • Bryn Truscott

  • Chris

  • Charly C

  • PTrottier

  • xmo-odoo

  • StevenJ

  • Jungmo Ku

  • Simeon Visser

  • Narendra Vardi

  • Stefane Fermigier

  • Narayan Acharya

  • François Magimel

  • Wolfgang Doll

  • Roy Williams

  • Marc-André Dufresne

  • Abhishek Tiwari

  • David Baumgold

  • Alex Kuzmenko

  • Georg Schölly

  • ldwoolley

  • Rodrigo Ramírez Norambuena

  • Jakub Wilk

  • Roman Rader

  • Max Shenfield

  • Nicolas Grilly

  • Kenny Root

  • Adam Chainz

  • Sébastien Fievet

  • Anthony Sottile

  • Yuriy Shatrov

  • iamshubh22

  • Sven Anderson

  • Eoin Nugent

  • Roman Imankulov

  • David Stanek

  • Roy Wellington Ⅳ

  • Florian Schulze

  • Todd M. Guerra

  • Joseph Breihan

  • Craig Loftus

  • The Gitter Badger

  • Régis Behmo

  • Julen Ruiz Aizpuru

  • astaric

  • Felix Yan

  • Philip_Tzou

  • Jesús Espino

  • Jeremy Weinstein

  • James Page

  • masklinn

  • Sjoerd Langkemper

  • Matt Iversen

  • Alexander A. Dyshev

  • Dirkjan Ochtman

  • Nick Retallack

  • Thomas Waldmann

  • xen

Babel was previously developed under the Copyright of Edgewall Software. The following copyright notice holds true for releases before 2013: “Copyright (c) 2007 - 2011 by Edgewall Software”

In addition to the regular contributions Babel includes a fork of Lennart Regebro’s tzlocal that originally was licensed under the CC0 license. The original copyright of that project is “Copyright 2013 by Lennart Regebro”.

General License Definitions

The following section contains the full license texts for Babel and the documentation.

  • “AUTHORS” hereby refers to all the authors listed in the Authors section.

  • The “Babel License” applies to all the source code shipped as part of Babel (Babel itself as well as the examples and the unit tests) as well as documentation.

  • The “Unicode License” applies to the transformed Unicode Common Locale Data Repository (CLDR) data files shipped with Babel, in the directory babel/locale-data.

Babel License

Copyright (c) 2013-2025 by the Babel Team, see AUTHORS for more information.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

  1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

  2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

  3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Unicode License

UNICODE LICENSE V3

COPYRIGHT AND PERMISSION NOTICE

Copyright © 2004-2025 Unicode, Inc.

NOTICE TO USER: Carefully read the following legal agreement. BY DOWNLOADING, INSTALLING, COPYING OR OTHERWISE USING DATA FILES, AND/OR SOFTWARE, YOU UNEQUIVOCALLY ACCEPT, AND AGREE TO BE BOUND BY, ALL OF THE TERMS AND CONDITIONS OF THIS AGREEMENT. IF YOU DO NOT AGREE, DO NOT DOWNLOAD, INSTALL, COPY, DISTRIBUTE OR USE THE DATA FILES OR SOFTWARE.

Permission is hereby granted, free of charge, to any person obtaining a copy of data files and any associated documentation (the “Data Files”) or software and any associated documentation (the “Software”) to deal in the Data Files or Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, and/or sell copies of the Data Files or Software, and to permit persons to whom the Data Files or Software are furnished to do so, provided that either (a) this copyright and permission notice appear with all copies of the Data Files or Software, or (b) this copyright and permission notice appear in associated Documentation.

THE DATA FILES AND SOFTWARE ARE PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.

IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THE DATA FILES OR SOFTWARE.

Except as contained in this notice, the name of a copyright holder shall not be used in advertising or otherwise to promote the sale, use or other dealings in these Data Files or Software without prior written authorization of the copyright holder.

SPDX-License-Identifier: Unicode-3.0