Credits

Worbles uses filtered word lists generated from SCOWL rel-2026.02.25.

Copyright 2000-2026 by Kevin Atkinson

Permission to use, copy, modify, distribute, and sell any part of SCOWLv2, or word lists created from it, is hereby granted without fee, provided that the above copyright notice appears in all copies and that both the above copyright notice and this notice appear in supporting documentation. Kevin Atkinson makes no representations about the suitability of this database for any purpose. It is provided "as is" without express or implied warranty.

SCOWL is derived from many sources, most of which are in the Public Domain. Data from the Corpus of Contemporary American English (COCA) was also used.

All data from COCA comes from 3-gram data that is not freely available; however, the usage is within the rights given by the NDA that was signed when purchasing the data. More information is available at: https://www.english-corpora.org/coca/

The primary source of words for SCOWL comes from 12dicts and ENABLE2K. Both are in the Public Domain, but Alan Beale deserves special credit as the author of 12dicts and a major contributor to ENABLE2K. In addition, he gave extensive feedback and created special lists to improve the overall quality of SCOWL.

Project: https://github.com/en-wl/wordlist

Worbles's frequency ranks derive from the first 40,000 tokens generated from the "best" English list in wordfreq 3.1.1, created by Robyn Speer. The wordfreq software is available under Apache License 2.0. Its aggregated frequency data is distributed under Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0).

Worbles modified the data by selecting eligible three-to-seven-letter entries, intersecting them with spelling sources, applying exact policy decisions and reviewed overrides, and assigning generation tiers. The adapted word-list data (the bundled Worbles clear list and its source database) is distributed under CC BY-SA 4.0. No endorsement by Robyn Speer, wordfreq, or any source incorporated by wordfreq is implied.

Project and source notes: https://github.com/rspeer/wordfreq Data license: https://creativecommons.org/licenses/by-sa/4.0/ Software license: https://www.apache.org/licenses/LICENSE-2.0

Worbles's broad, target-suppressed validation layer includes a modified snapshot of /usr/share/dict/web2 distributed with macOS, after removing its companion proper-name list and retaining lowercase ASCII entries of three to seven letters. The system README identifies web2 as derived from Webster's Second International Dictionary and says the 1934 copyright "has lapsed, according to the supplier." The same README explains that FreeBSD maintains a list of current American English spellings rather than a historical document.

Worbles makes no broader public-domain representation. Source identity, input hashes, filtering, and the exact supplier-qualified status statement are recorded in the project's vocabulary lock (Vocabulary/source-lock.json) and its Webster notice.

Source README: https://github.com/freebsd/freebsd-src/blob/main/share/dict/README FreeBSD license: https://www.freebsd.org/copyright/freebsd-license/

Copyright 1992-2026 The FreeBSD Project.

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.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.

The views and conclusions contained in the software and documentation are those of the authors and should not be interpreted as representing official policies, either expressed or implied, of the FreeBSD Project.

Worbles uses the TelemetryDeck Swift SDK 2.14.2 for anonymous usage counts. https://github.com/TelemetryDeck/SwiftSDK

MIT License. Copyright (c) 2020 Daniel Jilg

Worbles bundles Nunito Black (Nunito-Black.ttf, version 3.602, static instance from the official Google Fonts download of the Nunito family, https://fonts.google.com/specimen/Nunito; source project https://github.com/googlefonts/nunito). SHA-256 of the bundled file: 8de64ddb7d985763dd8dde658a9a2bb011f7509edcca475c02b281f4fe819e42.

Copyright 2014 The Nunito Project Authors (https://github.com/googlefonts/nunito)

This Font Software is licensed under the SIL Open Font License, Version 1.1. This license is copied below, and is also available with a FAQ at: https://openfontlicense.org

SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007

PREAMBLE
The goals of the Open Font License (OFL) are to stimulate worldwide development of collaborative font projects, to support the font creation efforts of academic and linguistic communities, and to provide a free and open framework in which fonts may be shared and improved in partnership with others.

The OFL allows the licensed fonts to be used, studied, modified and redistributed freely as long as they are not sold by themselves. The fonts, including any derivative works, can be bundled, embedded, redistributed and/or sold with any software provided that any reserved names are not used by derivative works. The fonts and derivatives, however, cannot be released under any other type of license. The requirement for fonts to remain under this license does not apply to any document created using the fonts or their derivatives.

DEFINITIONS
"Font Software" refers to the set of files released by the Copyright Holder(s) under this license and clearly marked as such. This may include source files, build scripts and documentation.

"Reserved Font Name" refers to any names specified as such after the copyright statement(s).

"Original Version" refers to the collection of Font Software components as distributed by the Copyright Holder(s).

"Modified Version" refers to any derivative made by adding to, deleting, or substituting -- in part or in whole -- any of the components of the Original Version, by changing formats or by porting the Font Software to a new environment.

"Author" refers to any designer, engineer, programmer, technical writer or other person who contributed to the Font Software.

PERMISSION & CONDITIONS
Permission is hereby granted, free of charge, to any person obtaining a copy of the Font Software, to use, study, copy, merge, embed, modify, redistribute, and sell modified and unmodified copies of the Font Software, subject to the following conditions:

1) Neither the Font Software nor any of its individual components, in Original or Modified Versions, may be sold by itself.

2) Original or Modified Versions of the Font Software may be bundled, redistributed and/or sold with any software, provided that each copy contains the above copyright notice and this license. These can be included either as stand-alone text files, human-readable headers or in the appropriate machine-readable metadata fields within text or binary files as long as those fields can be easily viewed by the user.

3) No Modified Version of the Font Software may use the Reserved Font Name(s) unless explicit written permission is granted by the corresponding Copyright Holder. This restriction only applies to the primary font name as presented to the users.

4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font Software shall not be used to promote, endorse or advertise any Modified Version, except to acknowledge the contribution(s) of the Copyright Holder(s) and the Author(s) or with their explicit written permission.

5) The Font Software, modified or unmodified, in part or in whole, must be distributed entirely under this license, and must not be distributed under any other license. The requirement for fonts to remain under this license does not apply to any document created using the Font Software.

TERMINATION
This license becomes null and void if any of the above conditions are not met.

DISCLAIMER
THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM OTHER DEALINGS IN THE FONT SOFTWARE.