Desktop football video annotation tool for coaches and analysts.
Threader helps you tag, annotate, and analyze match footage with a keyboard-first workflow. Every annotation follows the Common Data Format (CDF) standard — your data is structured, interoperable, and ready for downstream analysis.
- Performance analysts tagging match events during video review
- Coaches building clip playlists and reviewing key moments
- Data analysts who need structured, CDF-compliant event data for models and dashboards
- Full-bleed video player with a deep dark interface
- Keyboard-first annotation — every event type has a shortcut
- CDF-native data model (v0.2.3) with built-in validation
- Whistle sync — bridge video time to real-world UTC timestamps
- Visual timeline for navigating and reviewing annotations
- Cinema Mode — hide all chrome and focus on the video
- CDF-compliant JSONL export
Browse the full documentation at threader-docs.vercel.app.
Found a bug in the docs? Have a feature request or question?
Please open an issue — we'd love to hear from you. See CONTRIBUTING.md for guidelines.
Threader is built by Rondo Labs. The application is proprietary software; this repository contains the public documentation site.