Third-party software
Weir includes software written by other people. Each part comes under its own licence, not under Weir’s terms, and nothing in those terms limits what these licences let you do with it. We do not own any of it.
The full licence texts and copyright notices ship inside the app, in Weir.app/Contents/Resources/Licenses.
Programs and libraries Weir ships
| Software | Version | Licence | Source |
|---|---|---|---|
| FFmpegJoins, converts and previews video | 7.1.5 | LGPL-2.1-or-later, built with --disable-gpl and --disable-nonfree | Source codeBuild configurationffmpeg.org |
| yt-dlp, standalone macOS buildReads video pages and live streams | 2026.08.19 | GPL-3.0-or-later as a combined work. yt-dlp itself is under the Unlicense. | Source codeRelease |
| DenoRuns the scripts some video pages need | 2.9.6 | MIT | Source code |
| whisper.cppWrites subtitles and live captions on your Mac | 1.9.3 (tag b4938) | MIT | Source code |
| Silero VAD modelFinds where speech starts and stops | v6.2.0 | MIT | Project |
| SparkleChecks for and installs updates | 2.9.6 | MIT | Source code |
This software uses code of FFmpeg licensed under the LGPLv2.1. FFmpeg belongs to its authors, who are listed at ffmpeg.org. Weir runs FFmpeg as a separate program, built without its GPL and nonfree parts.
The yt-dlp build includes Python and other libraries, each under its own licence. Their notices are in the same Licenses folder.
Code built into Weir under the Mozilla Public License
Weir’s torrent support is built from these Go modules, used without changes under the Mozilla Public License 2.0. Each link goes to the source at the exact version Weir uses.
| Software | Version | Licence | Source |
|---|---|---|---|
| github.com/anacrolix/torrentTorrents | v1.60.0 | MPL-2.0 | Source code |
| github.com/anacrolix/dht/v2Torrents | v2.23.0 | MPL-2.0 | Source code |
| github.com/anacrolix/genericsTorrents | v0.1.1-0.20251125230353-15d98d46693b | MPL-2.0 | Source code |
| github.com/anacrolix/logTorrents | v0.17.1-0.20251118025802-918f1157b7bb | MPL-2.0 | Source code |
| github.com/anacrolix/multilessTorrents | v0.4.0 | MPL-2.0 | Source code |
| github.com/anacrolix/syncTorrents | v0.5.5-0.20251119100342-d78dd1f686f1 | MPL-2.0 | Source code |
| github.com/anacrolix/upnpTorrents | v0.1.4 | MPL-2.0 | Source code |
| github.com/anacrolix/utpTorrents | v0.1.0 | MPL-2.0 | Source code |
| github.com/anacrolix/mmsgTorrents | v1.0.1 | MPL-2.0 | Source code |
| github.com/go-llsqlite/adapterTorrents | v0.0.0-20230927005056-7f5ce7f0c916 | MPL-2.0 | Source code |
Everything else
The rest of the Go modules and JavaScript packages in Weir come under permissive licences such as MIT, BSD, Apache 2.0 and ISC. Their notices are in the Licenses folder too.
If a link here stops working, email sales@weirapp.com and we will send you the source.