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AutoSubs
AutoSubs is an open-source video subtitle generator that runs locally and integrates with major editors.
AutoSubs is a free, open-source AI subtitle generator that runs entirely on your local machine. It processes audio and video files using on-device model families such as Whisper, Parakeet, Canary, and Meta's Omnilingual ASR. The software works standalone or plugs directly into editing suites like DaVinci Resolve, Premiere Pro, and After Effects. It features a built-in subtitle formatter, word-level timing, and automatic speaker diarization. Designed for editors handling sensitive footage under NDA, it ensures that nothing leaves the local drive.
AutoSubs at a glance
- Best for: Social media creator
- Runs on: macOS, Windows, Linux
- Pricing: Free and open source
- Released: March 2023
- Category: AI video tool
- Website: tom-moroney.com
Key features
- On-device transcription using multiple AI models
- Integration with DaVinci Resolve, Premiere Pro, and After Effects
- Word-level timing for forced alignment and karaoke captions
- Automatic speaker diarization for interviews
- Subtitle formatter with line and character caps
- Rust transcription engine for fast processing
- Translation and SRT export capabilities
Use it for
- Creating burned-in captions for social media and YouTube videos
- Transcribing and translating videos for multi-language delivery
- Generating speaker labels and word-level timing for documentaries
- Subtitling client projects securely without cloud uploads
Alternatives to AutoSubs
- SmartSub — Open source and free with local model processing and GPU acceleration.
- AutoShorts — It runs locally and automatically transcribes, analyzes, and crops video clips.
- AutoClip — Local processing ensures video editing and rendering happen on your computer.
- Veed — Fast browser editing with top-quality subtitles and dubbing
- Fliki — Generates narrated videos from text or prompts using 2,000+ AI voices.
- AI Video Generator for Brands — Generates videos quickly without filming, actors, or a crew.
- DubbyLab: AI Video Dubbing — Combines transcription, translation, voice cloning and timeline alignment in one pipeline.
- VideoLingo — Automates subtitle cutting, translation, alignment, and dubbing in one click.
- Short Video Maker — It runs locally for free without any watermarks or pre-clip credits.
- Adult AI Video — Runs entirely offline on your local machine with zero subscriptions or account requirements.
- agentreel.co — It cuts raw clips into captioned short videos in under 20 minutes.
- Ssemble — Auto-clips, captions, and posts videos in one click.
All AutoSubs alternatives