MakerFlowTools
Free client-side suite

Auto Subtitle Generator

Audio & VideoAI Powered

Transcribe a video or audio clip into SRT and WebVTT subtitles, with Whisper running in your own browser — no upload, no account, no per-minute cost.

Runs in your browser•Zero cloud uploads / Files stay on device•No account required

Draft subtitles, English only, made on your machine.

This runs Whisper tiny.en — the smallest useful speech model — in this tab. Nothing is uploaded and nothing is charged, but a model this small makes mistakes: roughly one word in twenty on clear speech, and noticeably more with background music, crosstalk, strong accents or names it has never seen. Read it through before you publish it.

The first run downloads about 41 MB of model, once per device — after that it starts from your browser’s cache and works offline. English only; other languages will come back as nonsense rather than an error.

Video or audio

Drop your file here, or browse files

or paste screenshot / image withCtrl + V
video/*, audio/*

The audio track is read straight out of a video file, so there is no need to extract it first. Short clips are what this is for — a few minutes is fine, an hour is not.

Supported File Formats
MP3WAVMP4M4AWebM
Optimized For Platforms
youtubeshortstiktokpodcast

How it works

1Drop in a video or audio clip. The audio track is read straight out of the video, so there is nothing to extract first.
2The first run downloads about 41 MB of speech model, once per device. After that it starts from cache and works offline.
3Transcription happens in a background thread on your own machine — the tab stays usable, and you can cancel at any point.
4Read the cues through before publishing. This is the smallest Whisper model and it is English-only: expect roughly one wrong word in twenty on clear speech, and more with music or accents.
5Download SRT or WebVTT, or paste the cues into the Subtitle Converter to shift their timing or change format.

Related tools in Audio & Video

View all Audio & Video tools →