# Files on your Mac

> Where OrbTorrent keeps your library, its settings, the download engine's files, its logs and your extensions, and what's safe to delete.

Everything OrbTorrent keeps is on your Mac. Your downloaded files are wherever you saved them, your **Downloads** folder unless you chose another. Everything else is in one folder:

```
~/Library/Application Support/OrbTorrent/
├── Engine/                         the download engine's own folder
│   └── qBittorrent/
│       ├── config/qBittorrent.ini  the engine's settings
│       └── data/
│           ├── BT_backup/          your library: each download's torrent and progress
│           └── logs/qbittorrent.log  the engine's log
├── engine-credentials.json         the engine's private password, readable only by you
├── engine-console.log              what the engine printed as it ran
├── trackers.txt                    the public tracker list, for finding more peers
├── Extensions/
│   ├── Installed/                  extensions you've installed
│   ├── settings.json               extensions' settings, except passwords
│   ├── checks.json                 what checks found
│   ├── Data/                       each extension's stored data
│   └── Logs/                       each extension's log
├── Logs/
│   └── When a Download Finishes.log  what your own program printed, if you chose one
└── dev.sock                        for orb, while development extensions are allowed
```

To open it, choose **Go › Go to Folder…** in Finder and enter `~/Library/Application Support/OrbTorrent`, or click **Show Data Folder in Finder** in **Settings › Engine**, which shows the `Engine` folder inside it.

## Elsewhere

| | Where |
|---|---|
| **OrbTorrent's own settings** | `~/Library/Preferences/com.orbtorrent.mac.plist` |
| **Caches, such as a downloaded update** | `~/Library/Caches/com.orbtorrent.mac` and `~/Library/HTTPStorages/com.orbtorrent.mac` |
| **The sandbox extensions run in** | `~/Library/Containers/com.orbtorrent.mac.extension-host`, which macOS makes |
| **Extension passwords and API keys** | Your login Keychain |
| **The official extensions** | Inside OrbTorrent, in `OrbTorrent.app/Contents/Resources/Extensions` |
| **Pieces of files you skipped** | A hidden `.<info hash>.parts` file in the download's folder |
| **Files extensions added,** such as subtitles | Next to the download's own files, listed in its **Checks** tab. They're moved and removed with it. |

The `.parts` file holds the pieces a skipped file shares with files you're downloading, which BitTorrent needs to check them. It goes with the download's files when you remove them too.

## Logs

- **The engine's log:** **Settings › Engine › Show Engine Log**. Report a Problem can include its recent lines, with addresses hidden.
- **An extension's log:** on its page, under **Logs**, with **Show Log File**.
- **Your own program's log,** if you chose one to [run when a download finishes](https://orbtorrent.com/docs/guides/run-a-program): **Settings › Downloads › Show Log**.

## What's safe to delete

- **Your downloaded files,** once you've removed their downloads from OrbTorrent.
- **The whole OrbTorrent folder,** with OrbTorrent quit, to start again from scratch. OrbTorrent forgets every download, but their files stay where they are. [Settings](https://orbtorrent.com/docs/reference/settings#reset-orbtorrent) explains.

Don't edit the engine's files while OrbTorrent is open: OrbTorrent manages them, and the engine rewrites them as it runs.

## OrbTorrent Dev

If you build OrbTorrent yourself, **OrbTorrent Dev** keeps its own library and settings in `~/Library/Application Support/OrbTorrent Dev`, so it can run beside OrbTorrent. [Contribute](https://orbtorrent.com/docs/contribute) explains.