Auto SRT · in-browser AI

Free Subtitle / SRT Generator

Generate accurate, timestamped subtitles from any audio or video's audio track — free, private, and downloadable as .srt.

Drop an audio or video file, or click to browse

MP3, WAV, M4A, OGG, WEBM, MP4… processed locally in your browser

Model

0 words

Private: the AI model runs entirely in your browser. Your file is never uploaded to any server.

Voice to Text Dictation Voice Notes Audio to Text Subtitle / SRT Meeting Transcription

Create caption files without uploading your media. The AI Whisper model runs inside your browser, transcribes your audio with timestamps, and gives you a ready-to-use .srt file for YouTube, video editors, or accessibility. 100% free and private.

Timestamped .srt

Standard SubRip format, ready for any player.

On-device AI

Whisper runs locally — media never leaves your device.

Editable

Tweak the transcript before exporting.

Free & unlimited

No watermark, no sign-up, no caps.

Frequently asked questions

Everything you need to know about this free tool.

Is this voice-to-text tool really free?▾

Yes — completely free, unlimited, with no sign-up, no watermark, and no time limit. There is nothing to install and no credit card required.

Does my audio get uploaded to a server?▾

No. Live dictation uses your browser's built-in speech recognition, and the audio-file transcriber runs an AI model (Whisper) directly inside your browser via WebAssembly. Your voice and recordings never leave your device — there is no upload.

Which browsers are supported?▾

Live microphone dictation works best in Google Chrome and Microsoft Edge (and Chrome on Android). The audio-file transcriber runs in any modern browser, including Firefox and Safari, because it does not depend on the browser's speech engine.

How accurate is the transcription?▾

Accuracy is very good for clear speech in a quiet room with a decent microphone. Speaking at a natural pace, avoiding heavy background noise, and using a headset mic all improve results. You can always edit the transcript directly in the box.

Can I add punctuation by voice?▾

Yes. Say commands like “period”, “comma”, “question mark”, “new line”, or “new paragraph” and the tool inserts the right character automatically.

Can I export the text?▾

Yes — copy to clipboard with one click, or download as a .txt file. The audio-to-text and subtitle tools can also export timestamped .srt subtitles.

How it works & your privacy

The technology

Live dictation uses your browser's built-in Web Speech API.
Audio-file transcription runs OpenAI's Whisper model in-browser via WebAssembly (transformers.js).
No backend, no API keys, no usage limits.

Your privacy

Audio and recordings never leave your device.
Transcripts auto-save only to this browser's local storage.
No sign-up, no tracking of your content.

Free to use. Accuracy varies with audio quality, accent, and background noise. Always review transcripts before relying on them.

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