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.

Runs entirely on your device — your file is never uploaded. Best for privacy and unlimited use.

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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