Glossary
SRT (SubRip Subtitle) is the universal subtitle format. Plain text with timestamps, no proprietary container, supported by every video player and editor that has ever shipped — YouTube, VLC, Premiere, Final Cut, DaVinci Resolve, Vimeo, all of them. If you only learn one subtitle format, learn SRT.
SRT file structure
An SRT file is plain UTF-8 text. Each subtitle is a numbered block with three lines: (1) a sequence number starting at 1, (2) a start and end timestamp separated by -->, and (3) the subtitle text (1-2 lines max for readability). Blank line separates blocks. Example:
1 00:00:00,500 --> 00:00:03,200 Welcome to the show. 2 00:00:03,500 --> 00:00:07,800 Today we're talking about open-source speech recognition.
When to use SRT
Anywhere you upload subtitles to a video. YouTube's caption uploader takes SRT directly. Premiere/Final Cut/DaVinci Resolve all import SRT and let you style + position before export. Burn-in tools like Headliner and Captions.ai accept SRT to overlay styled captions onto a video. SRT is also the default output for our audio-to-SRT and video-to-SRT tools. To grab the SRT that already exists for a YouTube video, use the subtitle downloader; our guide to editing an SRT file covers fixing text and timing.
SRT vs VTT
WebVTT is SRT's web-native cousin — same idea, more features (styling, positioning, regions). For HTML5 video on a webpage, use VTT. For YouTube, video editors, and almost everything else, use SRT. Both are roughly equivalent in raw transcript content; we export to both as standard. Full comparison with samples: SRT vs VTT vs TXT.
In practice
Upload a 10-minute video. Click "Export SRT". Download the .srt file. Drag it into Premiere's timeline — instantly synchronized with the video. Style the captions, export the video. Total time: under 5 minutes from upload to a captioned video.
Related terms
Further reading
Generate SRT subtitles
Get started — freeLast updated: September 20, 2026
Frequently Asked Questions
What does SRT mean in transcription?
SubRip Subtitle file format. The most widely supported subtitle format, compatible with YouTube, VLC, Premiere, Final Cut, and DaVinci Resolve.
Why does SRT matter when choosing a transcription workflow?
SRT affects how you understand transcript quality, timing, compatibility, or the technology behind speech-to-text results.
Where can I apply SRT on Transcript.you?
Use the related workflow at /audio-to-srt when you want to see how this glossary concept connects to an actual transcription task.
Browse the full transcription glossary or read the complete guide to AI transcription.