Caption Converter SRT/VTT
Commercial use OK
380+ models
No watermark
No sign-up needed
Model:
+ GPT-5, Claude, Gemini
Converted Captions
Advanced options
Result
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Convert between caption formats for free. SRT, VTT, ASS, and SBV supported.
How to Use Caption Converter SRT/VTT
1
Enter your input
Type text, upload a file, or describe what you want. No account needed.
2
Click generate
Our AI processes your request in seconds using the best open-source models.
3
Download & share
Download, copy, or share your result. Free for personal and commercial use.
Use this tool via API
Automate this tool from your own code. OpenAI-compatible REST endpoint, Bearer-token auth, no extra SDK required. Token costs match the web interface.
curl -X POST https://api.free.ai/v1/stt/ \
-H "Authorization: Bearer sk-free-..." \
-H "Content-Type: application/json" \
-d '{"file": "@audio.mp3", "language": "auto"}'Caption Converter SRT/VTT - FAQ
Caption Converter SRT/VTT is an AI transcription tool that turns speech into accurate, timestamped text using open-source speech models, in over a hundred languages. It runs free on Free.ai with no sign-up required to get started.
Caption Converter SRT/VTT is built for podcasters, journalists, and researchers who need a clean transcript without manual typing. It covers transcripts, captions, and other speech-to-text output - pick this tool when that’s what you need.
Give Caption Converter SRT/VTT the source (a file, a link, or pasted content) and it pulls out the text or information you need, cleaned up and ready to use.
Yes. You get 6,000 free tokens per day with no account at all, or 30,000 tokens/day with a free account. Caption Converter SRT/VTT draws from that daily pool; if you need more, token packs start at $1.
Caption Converter SRT/VTT outputs plain, copy-ready text. Copy it straight out, or export it - signed-in users can save and revisit results from their history.
Give Caption Converter SRT/VTT context: who it’s for, the tone you want, and roughly how long. The more direction you give, the closer the first draft lands - then regenerate or edit to taste.
Yes. Text you generate with Caption Converter SRT/VTT is yours to publish, edit, and use commercially. We claim no rights over your output.
No. Use Caption Converter SRT/VTT immediately as a guest. A free account doubles your daily tokens to 30,000, saves your history, and unlocks larger inputs - but it is optional.
What you type into Caption Converter SRT/VTT is not stored beyond the share window and is not used to train models. Signed-in users can choose to save results to their history.
Caption Converter SRT/VTT runs on best-in-class open-source AI models on our own infrastructure - no third-party API keys, no per-call surcharge. We update the underlying models as better ones are released.
Yes. Caption Converter SRT/VTT works in any modern mobile browser - the layout adapts to your screen, so you can use it on a phone or tablet with no app to install.
A lot. Beyond Caption Converter SRT/VTT, Free.ai bundles transcripts, captions, and other speech-to-text output alongside hundreds of other free AI tools - chat, images, audio, video, code, and more - all sharing the same daily token pool. Browse the categories to find your next one.
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