Ecosystem & Community Projects
Discover open-source companion tools built around AniBT and the anime fansub community, including font subsetting with FontInAss and automatic seeding via AniBT-Speed.
AniBT encourages open-source collaboration and community development. Below are practical companion tools built by the community that integrate into fansub encoding workflows or personal downloading setups.
If you have developed a downloader plugin, release automation script, or desktop tool related to AniBT, feel free to submit a Pull Request to our Wiki Repository to be featured here.
FontInAss — Subtitle Font Subsetting Tool
When bundling external or muxed ASS/SRT subtitles into torrent releases, including complete font files can bloat release size by tens of megabytes. FontInAss scans the exact glyphs used across your subtitle files and cuts the original bulky fonts down to an optimal minimal subset.
Yuri-NagaSaki/FontInAss
- Web Tool: font.anibt.net
Workflow Steps
Load Subtitles and Original Fonts
In the FontInAss web interface or CLI, load all ASS / SRT subtitle files for your current episode release, and upload the corresponding font files referenced in the styles.
Extract and Generate Subsets
The program scans every character, kanji, kana, and symbol used, strips tens of thousands of unused glyphs, and compiles a clean, tiny .ttf / .otf subset font package of only a few hundred kilobytes.
Bundle into Torrent Release
Place the generated subset fonts into a Fonts/ directory within your release folder and package it into your torrent. Viewers will enjoy the exact intended typography without needing full fonts pre-installed.
AniBT-Speed — RSS Automated Seeding Agent
To ensure long-term torrent availability and high-speed downloading for anime fans, the community created AniBT-Speed, a lightweight auto-downloader and seeder built on AniBT public RSS feeds.
Yuri-NagaSaki/AniBT-Speed
- Key Highlights:
- Monitors and subscribes to AniBT Anime RSS Feeds or Site-wide Magnets.
- Honors standard HTTP conditional caching with 304 Not Modified, minimizing server overhead during polling.
- Interfaces directly with Aria2, qBittorrent, or Transmission for fully automated retrieval and persistent seeding.
Torrent Parser — Inspect and Edit Torrents in the Browser
Torrent Parser opens a .torrent file in the browser to inspect its info hash, file list, and tracker list, build a magnet link, and export the torrent again after editing fields.
- Live tool: parser.anibt.net