Automatic subtitles (SRT)
Free, no sign-up, and your files never leave your device.
Drop your files here
Choose filesNothing is uploaded: everything happens in your browser
The first transcription downloads the speech recognition model once, then your browser keeps it: about 75 MB in standard accuracy, 240 MB in high accuracy. The video itself never leaves your device.
Drop your video and speech recognition turns it into an SRT subtitle file: each sentence with its start and end time, in short lines that are easy to read. YouTube, CapCut, Premiere Pro, DaVinci Resolve and most social networks import it directly. Everything happens on your device.
How to transcribe
- 1Drop your video or recording in the box, or click to pick it.
- 2Choose the format: plain text (TXT), SRT or VTT subtitles. The spoken language is detected automatically; you can also pick it in the settings.
- 3The first time, the speech recognition model downloads once and for all. After that, everything happens on your device: download the text or the subtitles.
The formats
MP4
The universal video format. In H.264 with AAC audio, it plays on every phone, computer, TV and social network. It is the format to aim for when you do not know where the video will be watched.
MOV
Apple's video format, used by iPhones and QuickTime. The content is often the same as an MP4 (H.264 or HEVC), but Windows, some websites and many editing and sharing tools refuse it.
WebM
The web's open video format, in VP9 or AV1 with Opus audio. It is light and plays in Chrome, Firefox and Edge, but less well on iPhones, in editing software and on some social networks.
SRT
The most widespread subtitle format: each sentence numbered with its start and end time. YouTube, Facebook, LinkedIn, Premiere Pro, DaVinci Resolve, CapCut and VLC import it directly.
Your files stay with you
The conversion runs in your browser, with your device's decoders. No file is uploaded, no copy is kept, and nobody but you sees your photos or videos. You can check it in the Network tab of your browser's developer tools: none of your files goes out.
Frequently asked questions
How do I add them on YouTube?
In YouTube Studio, open the video, then Subtitles, Add language and Upload file "with timing". Pick the SRT file downloaded here.
Are the subtitles perfect?
They are accurate for a clear voice, but proofread proper names, numbers and jargon. SRT is a plain text file: fix it in any editor or in your video editing software.
Is the converter really free?
Yes, with no sign-up, no watermark and no limit on the number of files. The conversion runs on your device and costs us nothing, so there is nothing to charge you for.
Are my files sent anywhere?
No. They are read and converted in your browser, then saved straight to your device. No server receives them.
Is there a maximum size?
The limit is your device's memory. Photos and audio files go through without trouble; for a video of several gigabytes, a computer does better than a phone.
Does it work on a phone?
Yes, on iPhone and Android, in Safari, Chrome or Firefox. For video, an up-to-date browser is needed: it provides the decoders being used.
What next, with AI
Dub a video with AI, lips in sync
A video where someone speaks, a new voice in another language: Sync Lipsync 3 re-times the lips to the new text. The same shot in English and in Spanish, without reshooting. The whole workflow is visible without an account.
Open the tool