Open-source notices

ClearBarcode is built with the open-source software below. Each project is listed with its license and copyright notice, as its license asks. The full license texts are in third-party-licenses.txt. We thank their authors.

Software in the barcode tools

The barcode tools run this software in your browser.

• bwip-js 4.11.4. License: MIT. Copyright (c) 2011-2026 Mark Warren. github.com/metafloor/bwip-js
• Barcode Writer in Pure PostScript (BWIPP) 2026-05-28. License: MIT. Copyright (c) 2004-2024 Terry Burton. bwipp.terryburton.co.uk
• stb_truetype. License: MIT. Copyright (c) 2017 Sean Barrett; JavaScript port copyright (c) 2019 Mark Warren. github.com/nothings/stb
• zxing-wasm 3.1.6. License: MIT (its own code); Apache License 2.0 (zxing-cpp and its C++ bindings). Copyright (c) 2023 Ze-Zheng Wu. github.com/Sec-ant/zxing-wasm
• zxing-cpp Commit 2c3dcfeffa78. License: Apache License 2.0. The ZXing and zxing-cpp authors; see the notices in the source files. github.com/zxing-cpp/zxing-cpp
• Emscripten runtime Not named by zxing-wasm. License: MIT or University of Illinois/NCSA Open Source License. Copyright (c) 2010-2014 Emscripten authors, see AUTHORS file. github.com/emscripten-core/emscripten
• musl C library As included in Emscripten. License: MIT. Copyright © 2005-2020 Rich Felker, et al. musl as included in Emscripten
• LLVM libc++ and libc++abi. License: Apache License 2.0 with LLVM Exceptions. github.com/llvm/llvm-project
• pdf-lib 1.17.1. License: MIT. Copyright (c) 2019 Andrew Dillon. github.com/Hopding/pdf-lib
• @pdf-lib/standard-fonts 1.0.0. License: MIT. Copyright (c) 2018 Andrew Dillon. A fork of afm, copyright 2015–2018 Christopher Brown, MIT license (as the package's README states). github.com/Hopding/standard-fonts
• @pdf-lib/upng 1.0.1. License: MIT. Copyright (c) 2017 Photopea. github.com/Hopding/upng
• pako 1.0.11. License: MIT and Zlib. Copyright (C) 2014-2017 by Vitaly Puzrin and Andrei Tuputcyn; zlib code (C) 1995-2013 Jean-loup Gailly and Mark Adler. github.com/nodeca/pako
• tslib 1.14.1. License: 0BSD (BSD Zero Clause). Copyright (c) Microsoft Corporation. github.com/microsoft/tslib
• fflate 0.8.3. License: MIT. Copyright (c) 2026 Arjun Barrett. github.com/101arrowz/fflate

Fonts

bwip-js includes the OCR-A and OCR-B fonts. ClearBarcode removes them when the site is built, so they are not sent to your browser and are not used for any file you make.

• Helvetica font measurements (Adobe AFM data). Character widths for fitting text on labels, through @pdf-lib/standard-fonts; no font file is included. Copyright (c) 1985, 1987, 1989, 1990, 1997 Adobe Systems Incorporated. All Rights Reserved. Helvetica is a trademark of Linotype-Hell AG and/or its subsidiaries. License: Adobe's notice for its Core 14 AFM files (MustRead.html) is quoted in full in third-party-licenses.txt, as copied by SPEC CPU 2017 and named as the license of those files by the R project's AFM README. These are copies: we could not retrieve Adobe's original.

Used only to build the site

Astro turns our pages into plain HTML files when we build the site. None of its code is sent to your browser. We list it as a courtesy.

• Astro 7.4.0. License: MIT. Copyright (c) 2021 Fred K. Schott, and the other notices in the license text. github.com/withastro/astro