Nexus StudioOpen-source licenses
Last updated 2026-10-05 · what Nexus Studio is built on, and under which licenses
Nexus Studio drives real browsers with Playwright and Selenium, the two standard open-source automation engines, and is built with other open-source software. Each component stays under its own license, and nothing in the Nexus Studio license limits your rights under those licenses. The complete list, with every license text and NOTICE file, is the third-party notices file, generated from our lockfiles for each release.
The main components
| Component | License | Copyright | What it does in Nexus Studio |
|---|---|---|---|
| Playwright 1.62.1 | Apache-2.0 | Microsoft Corporation | Runs Playwright tests and drives Chromium, Firefox and WebKit. |
| Node.js 24 LTS runtime | MIT, with bundled components under their own licenses: OpenSSL under Apache-2.0, ICU under the Unicode license, V8 under BSD-3-Clause and others | Node.js contributors | Runs the engine and the Studio's local server. Its full license, with every bundled component, is in the notices file. |
| Selenium WebDriver 4.45.0 | Apache-2.0 | Software Freedom Conservancy and the Selenium committers | Runs Selenium tests. |
| axe-core 4.12.1 | MPL-2.0 | Deque Systems | Accessibility checks. Distributed unmodified. |
| Next.js 16 and React 19 | MIT | Vercel; Meta Platforms | The Studio's interface. |
| Tauri 2 | Apache-2.0 or MIT | The Tauri Programme within the Commons Conservancy | The desktop window around the Studio. |
| Monaco Editor | MIT | Microsoft Corporation | The code editor. |
| sharp and libvips 8.18.6 | Apache-2.0; libvips under LGPL-3.0-or-later | Lovell Fuller; the libvips authors | Image processing in the Studio. |
The browsers are not in our download
Chromium, Firefox and WebKit are not part of the Nexus Studio installer. When a workspace first needs them, Playwright downloads them from Microsoft's servers, and they come under their own licenses: Chromium under the BSD license and others, Firefox under the Mozilla Public License 2.0, WebKit under the LGPL and BSD licenses.
LGPL source code
libvips-42.dll is a separate, dynamically linked library, unmodified, so you can replace it with your own build. It is built by github.com/lovell/sharp-libvips. It contains libvips 8.18.6 and the libraries libvips uses. Among them, glib, pango, librsvg, libheif, fribidi, libexif and proxy-libintl are under the LGPL-3.0, and cairo, libpng, libtiff, mozjpeg, libwebp, freetype, harfbuzz and others are under their own licenses. The notices file lists each one with its license text. This software is based in part on the work of the Independent JPEG Group. For three years after we distribute a version, we will send you, on request, the exact source of the libvips build in it, including every LGPL library above, at no charge beyond the cost of sending it. Write to [email protected].
Trademarks
Playwright and Microsoft are trademarks of Microsoft Corporation. Selenium is a trademark of the Software Freedom Conservancy. Chrome and Chromium are trademarks of Google LLC, Firefox of the Mozilla Foundation, and WebKit of Apple Inc. We name them only to say what Nexus Studio works with. Nexus Studio is not affiliated with, sponsored or endorsed by any of them. Nexus Studio and Verdict System are trademarks of Verdict System LLC.