Free Online Subtitle Converter
Instantly convert your subtitle files to any format. Whether you need to convert SRT to VTT for web players, ASS to SRT for better compatibility, or handle professional broadcast formats like SCC and TTML, TheSubAI makes it easy.
How to Convert Subtitle Files Online?
Follow these 3 simple steps to change your subtitle format:
- Upload your file: Drag and drop your subtitle file (SRT, VTT, SUB, etc.) into the tool.
- Select Output Format: Choose your desired format from the dropdown list (e.g., WebVTT, SRT, SSA).
- Download: Click the button to instantly download your converted file.
Supported Subtitle Formats
Our tool supports conversion between all major subtitle formats used in broadcasting, streaming, and social media:
- Web & Streaming: WebVTT (.vtt), SubRip (.srt), YouTube SBV (.sbv), TTML (.ttml), DFXP (.dfxp)
- Professional & Broadcast: SCC Closed Caption (.scc), SAMI (.smi)
- Advanced Styling: Advanced SubStation (.ass), SubStation Alpha (.ssa)
- Legacy Formats: MicroDVD (.sub)
Why use TheSubAI Subtitle Converter?
- 100% Free: Convert as many files as you need without hidden costs or watermarks.
- Privacy First: Your files are processed securely in your browser.
- Preserve Timing: Our converter maintains the original timestamps and synchronization of your subtitles perfectly.
- Cross-Platform Compatibility: Make your subtitles work on VLC, YouTube, Netflix, Premiere Pro, and DaVinci Resolve.
Free Online Subtitle Converter - FAQ
Simply upload your .srt file to TheSubAI, select "WebVTT (.vtt)" from the dropdown menu, and click download. The process takes less than a second and is completely free.
Yes. Converting .ass to .srt will strip the advanced styling (colors, positioning) but will preserve all the text content and timing perfectly, making it compatible with standard video players.
Yes, we support Scenarist Closed Caption (.scc) files, which are the standard for broadcast television and iTunes/Apple TV. You can convert them to SRT or VTT easily.
Absolutely. TheSubAI processes your files directly in your browser session. We do not store your subtitle files on our servers, ensuring your content remains private.