Tiny (سريع), Base, Small (balanced), Medium (most accurate).
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متعدد التنسيقات
SRT لـ YouTube, VTT لـ web, TXT لـ reading.
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Precise timestamps
Auto-segment by sentence, accurate to 0.001s.
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مجاني
بدون علامة مائية، بدون تسجيل, no ads.
How to auto-generate subtitles — 4 steps
Upload your file: select a video (MP4, MOV) or audio file (MP3) to transcribe.
Pick a model size: choose Tiny for speed or Medium for the highest accuracy.
Generate: Whisper AI transcribes the speech and auto-detects the language across 99+ options.
Export: download SRT for YouTube, VTT for the web, or TXT for reading — free, no watermark.
Auto subtitles make videos accessible, boost watch time on social media, and give you a transcript for blog posts
or notes. The tool runs in your browser with nothing to install, and uploaded files are processed then
automatically deleted after 10 minutes. It is completely free with no signup.
Frequently asked questions
How accurate are the subtitles?
Subtitles are generated by OpenAI Whisper, a state-of-the-art speech-to-text model. Accuracy depends on the model size you choose and the clarity of the audio — cleaner recordings produce better results.
Which languages are supported?
Whisper supports 99+ languages, including English, Vietnamese, Chinese, Japanese, Korean and Spanish, and it can auto-detect the spoken language for you.
What is the difference between the model sizes?
There are four sizes: Tiny is the fastest, Base and Small offer a good balance of speed and accuracy, and Medium is the most accurate but slower. Pick based on how much you value speed versus precision.
What subtitle formats can I export?
You can export SRT for YouTube, VTT for the web, or plain TXT for reading. Timestamps are auto-segmented by sentence.
What files can I transcribe, and is it free?
You can upload video (MP4, MOV) or audio (MP3). The tool is free with no watermark, no signup and no ads. Uploaded files are processed and then automatically deleted after 10 minutes.