MP4 to SRT Converter
AI generates timed SRT subtitles straight from your MP4's audio — review each line, optionally translate, then export a clean .srt for any platform or editor.
- High-accuracy AI
- 100+ languages
- Line-by-line editor
- Fast turnaround
How it works
- Step 1
Upload your video
Drag in an MP4, MOV, or WebM file — audio is extracted in your browser.
- Step 2
AI captioning
AI generates timed captions from the speech and can translate them into 100+ languages.
- Step 3
Edit & export
Review captions line by line, then export SRT/VTT for YouTube, TikTok, or your editor.
Generate SRT subtitles from any MP4
Upload an MP4 and AI transcribes the spoken audio into timed subtitle lines. Review the timing and wording, then export a standards-clean SRT ready for YouTube, editors, and players.
- Create SRT subtitles from MP4 video — no existing subtitle track needed.
- Audio is extracted in your browser; only the speech is transcribed.
- Review and edit every cue before exporting.
- Translate the subtitles into 100+ languages, then export SRT or VTT.
The fastest way to caption a YouTube upload, course video, or social clip that started life as an MP4.
Frequently asked questions
Will the SRT stay in sync with my MP4?
Yes. Subtitles are timed to the spoken audio, and you can fine-tune any cue in the editor, so the exported SRT matches the video accurately enough for any platform.
Can I translate the MP4 subtitles into another language?
Yes. Generate subtitles in the original language, then translate them into 100+ languages while keeping the timing, and export SRT or VTT.
Is it free to convert MP4 to SRT?
You can start free with no account to check accuracy; longer videos are covered by a paid plan.
How do I get an SRT file from an MP4 video?
Upload your MP4 to SubtitleFlow; it extracts the audio in your browser, transcribes the speech into timed lines, and lets you export an SRT file. You can also translate those captions into another language before exporting. No account is required to start.
Can I extract existing hardcoded subtitles from an MP4?
SubtitleFlow generates subtitles from the spoken audio rather than reading burned-in text off the picture, so it works even when a video has no subtitle track at all. The result is a fresh, editable SRT timed to the speech.