How to get an SRT file from an MP4
Three steps: upload the video, check the transcript, export SRT. Here's the whole workflow.
By Anubhav Jain, Trustample founder · Updated July 2026 · Claims verified against the live product
Free: 60 min per 30 days, files up to 30 min / 50 MB · Paid plans: 10 to 100 hrs, files up to 2 GB. Big video? Upload just its audio track — same transcript, much faster upload.
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The fastest way to get an SRT subtitle file from an MP4: upload the video to an AI transcription tool, review the generated transcript, and export as SRT. With Trustample the whole cycle takes about five minutes for a typical video, and the cue timestamps come from word-level AI timing — no manual syncing.
The edit-before-export step is what separates good subtitles from embarrassing ones: fix a name once in the editor and every exported cue carries the fix. Editors, YouTube Studio, and social platforms all accept the resulting SRT; web players prefer VTT, which exports from the same transcript.
How it works
- 1Upload the MP4 — speech is read directly from the video, no audio extraction needed.
- 2Review the transcript; click any word to fix names or jargon.
- 3Export → Subtitles (.srt) for editors and YouTube, or Web subtitles (.vtt) for web players.
Frequently Asked Questions (FAQs)
What's the difference between SRT and VTT?
Same idea, different dialects. SRT is the older universal format (timestamps use commas); VTT is the web standard for HTML5 players (dots, plus optional styling). Both export from the same Trustample transcript — grab whichever your platform wants.
Will the subtitle timing match my video exactly?
Yes — cue times come from word-level timestamps generated against your file's own audio. As long as you don't trim the video afterwards, subtitles land on the right frames.
How do I add the SRT to my video?
YouTube: Studio → Subtitles → Add → Upload file. Editors (Premiere, Resolve, CapCut): import the SRT to a caption track. Players like VLC: name the .srt identically to the video file and keep them in the same folder.
Can I burn the subtitles into the video permanently?
That's done in your video editor (or ffmpeg), not the SRT itself — import the SRT, style it, and export with 'burn in' enabled. Keeping subtitles as a separate SRT is usually better: viewers can toggle them and platforms index the text.
Related pages
Subtitles from audio-only files
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