Goblin includes open-source code, and its authors ask that their copyright notices and licenses travel with it. They are all in one place.
Find the licenses#
- Open Settings›Help & Feedback.
- Find the Acknowledgements card and press Acknowledgements….
- Scroll the list. Each project shows what Goblin uses it for and its license. Press Project Page to open its home, or expand License to read the full text.
- Press Done to close the list.

The license texts ship inside the app, so they can be read without a connection. If a text can't be read, the list says so and points to the project page.
What is in the list#
The first entry is the project Goblin's screenshot, annotation, screen recording and video editing tools are built on. Its name and author are in the window. The others:
| Project | What Goblin uses it for | License |
|---|---|---|
| MonitorControl, MediaKeyTap | Control compatible display brightness, volume and contrast, and handle the Apple keyboard's display and volume keys. | MIT |
| AudioRescue | The audio service restart action is based on it. | MIT |
| Swift-WebP | Writes WebP images in the screenshot and recording tools. By Satoshi Namai. | MIT |
| libwebp | Google's WebP encoder, used through Swift-WebP. | BSD 3-Clause |
| Clipbar More Actions | The extra actions you can add in Settings›Clipbar›More Actions. Each action's author is listed in the license text. | MIT |
| Yams | Reads the configuration files of Clipbar extensions. By JP Simard. | MIT |
| An open-source developer cleaner | Cleanup of developer projects, merged worktrees, simulators and Docker storage, and the disk-fill forecast are based on it. | MIT |
| 7-Zip | Opens and creates archives. Its RAR code opens RAR archives and can't make them. | GNU LGPL 2.1+, with the unRAR restriction |
| XADMaster | Opens StuffIt (.sit, .sitx, .sea) and Amiga LZX (.lzx) archives. It can only read them. | GNU LGPL 2.1, with BSD and public-domain parts |
| LZ4 | Opens and creates .lz4 and .tar.lz4 files. By Yann Collet. | BSD 2-Clause |
| Sparkle BinaryDelta | Builds the small update patches, so an update downloads only what changed. | MIT |
| Swift Argument Parser | Reads the command line of the update patch tool. By Apple Inc. and the Swift project authors. | Apache 2.0 |