Validator
Free online subtitle validator. Validate SRT, VTT, and ASS subtitle file format, structure, and identify potential issues.
Drop your subtitle file here
or browse files
Supports SRT, VTT, ASS, SUB, TXT, JSON
How to Use Validator
Upload your subtitle file. The tool validates format compliance and reports any issues found.
Common Use Cases
About Validator
Free online subtitle validator. Validate SRT, VTT, and ASS subtitle file format, structure, and identify potential issues.. Our Validator tool provides a fast, reliable, and completely free solution that works entirely in your browser. No server uploads, no registration, and no usage limits.
Whether you are a professional video editor, a content creator, or someone who needs to work with subtitles occasionally, our tool is designed to be intuitive and efficient. The processing happens instantly, and you can see the results in real-time.
Why Choose Our Validator Tool?
- 100% free with no hidden charges or premium tiers for basic features
- Privacy-first: all processing happens in your browser
- No registration or account required
- Support for all major subtitle formats
- Instant processing with real-time preview
- Clean, professional interface designed for productivity