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Open-source licenses

Roveltia Batch Image Compressor is a free browser tool. The application code is MIT licensed. Third-party libraries shipped in production builds are listed below with links to their full license texts.

Roveltia Batch Image Compressor (this application)

MIT License · Copyright (c) 2026 Roveltia

UI, batch queue, and site code written for Roveltia. JPEG, WebP, AVIF, and PNG output use bundled WebAssembly codecs listed below.

MIT License

Copyright (c) 2026 Roveltia

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS 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. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

Third-party notices

Dependencies and bundled assets used in production.

Oxipng codec

MIT License · Copyright (c) 2016 Joshua Holmer

PNG optimizer used inside @jsquash/oxipng.

MIT text

PNG codec (Squoosh)

BSD 3-Clause · Copyright (c) 2010 Google Inc.

PNG encoder/decoder used inside @jsquash/png.

BSD text

wasm-feature-detect

Apache License 2.0 · Google LLC

Transitive dependency for WebAssembly feature detection used by the bundled codecs.

Apache 2.0 text

fflate

MIT License · Copyright (c) 2020 Arjun Barrett

ZIP archive creation for batch downloads.

MIT text

Web fonts

SIL Open Font License 1.1

Manrope, Space Grotesk, and JetBrains Mono are loaded from Google Fonts and are not bundled in this site’s build output. Google Fonts attribution

Hosted externally