Introduction to flowsub.ai
flowsub.ai is an AI-powered subtitle generation tool that enables users to create studio-quality subtitles and closed captions in minutes. By leveraging OpenAI Whisper, the platform automatically transcribes any video or audio file into accurate and well-timed subtitles. It supports a wide range of formats including SRT, VTT, TXT, and ASS, making it easy for users to export and use the subtitles across various platforms.
The service is ideal for podcasters, educators, content creators, and anyone looking to enhance their video content with accurate subtitles. With support for over 99 languages, flowsub.ai helps make content more accessible and engaging for global audiences. Whether you're aiming to grow your social media presence, improve accessibility for educational materials, or expand your reach internationally, flowsub.ai provides a simple and efficient solution.
Takeaways
- AI-powered subtitle generation using OpenAI Whisper
- Supports SRT, VTT, TXT, and ASS formats
- 99+ languages supported
- Free plan includes 10 minutes of transcription per month
- Pro plan offers unlimited transcription and advanced features
- Easy-to-use interface for uploading and downloading subtitles
How flowsub.ai Works
- Upload your file: Users can upload video or audio files in supported formats such as MP4, MKV, MOV, WebM, MP3, and WAV. The maximum file size allowed is 500 MB.
- AI transcribes: FlowSub uses OpenAI Whisper to analyze the audio and generate precise subtitles with timestamps.
- Download & share: After transcription, users can download subtitles in SRT, VTT, TXT, or ASS format and integrate them into videos or share them directly.
Core Benefits and Applications
| Use Case | Benefit |
|---|---|
| Podcasters | Turn episodes into searchable and shareable content with accurate transcripts |
| Social Media Creators | Increase engagement with subtitled videos |
| Educators | Make courses accessible with auto-generated captions |
| Global Audiences | Translate subtitles into 99+ languages for broader reach |
Pricing
| Plan | Price | Features |
|---|---|---|
| Free | $0 | 10 minutes/month, SRT download, no credit card required |
| Pro | $5.99/month | Unlimited minutes, SRT/VTT/TXT/ASS, subtitle translation, burn subtitles to video, video preview with captions |
Frequently Asked Questions
How do I generate subtitles automatically? Sign up for free, upload your video or audio file, and FlowSub automatically generates accurate subtitles using OpenAI Whisper AI. The process usually takes 1–3 minutes. Download in SRT, VTT, or TXT format.
Is FlowSub free to use? Yes. The free plan includes 10 minutes of transcription per month with no credit card required. For unlimited transcription, subtitle translation, VTT format, and video preview, upgrade to Pro for $5.99/month or $49.99/year.
What video and audio formats are supported? FlowSub supports MP4, MKV, MOV, AVI, WebM (video) and MP3, WAV, M4A, OGG (audio). Maximum file size is 500 MB.
How accurate is AI subtitle generation? FlowSub uses OpenAI Whisper, achieving near human-level accuracy on clear audio. Accuracy depends on audio quality, speaker clarity, and background noise.
Can I get subtitles in multiple languages? Yes. Whisper supports 99+ languages and auto-detects the spoken language. Pro users can also translate subtitles into any language on demand.
What subtitle formats does FlowSub export? SRT (most compatible), VTT (web standard, Pro), ASS (advanced styling, Pro), and TXT (plain transcript). All formats generated with every transcription.
