Free Tool
Text to SRT Subtitles
Paste text, get a subtitle file. SRT or WebVTT with auto-generated timestamps.
Auto-splits text into segments with reading-speed timestamps
SRT & WebVTT
Two formats: SRT for most players, WebVTT for web
Auto Timestamps
Generates timestamps based on natural reading speed
Proper Formatting
42-char line wrapping, 2-line max per subtitle
Instant
Pure text processing — results in milliseconds
How It Works
Paste Text
Paste your transcript, script, or any text.
Choose Format
SRT for video editors and players. WebVTT for web.
Download
Get your subtitle file ready to use.
Use Cases
Video Subtitles
Add subtitles to videos in Premiere, DaVinci, or any editor.
Podcast Captions
Create captions for podcast episodes and audio content.
Accessibility
Make video content accessible with subtitle files.
Language Learning
Create subtitle files for language study materials.
Pricing
Free tier includes 20 credits/day (20 files/day)
Pro $20/mo (2,500 credits) · Ultra $100/mo (15,000 credits) · View plans
Why RunCLI?
Two Formats
SRT and WebVTT — covers all use cases
Smart Timing
Natural reading speed, not robotic pacing
Near-Free
1 credit per file, 20 free daily
Pipeline
Transcribe → Subtitles in two clicks
Complete subtitle workflow
Transcribe audio, then convert to subtitles.
Frequently Asked Questions
What's the difference between SRT and WebVTT?
SRT (.srt) is the most widely supported format — works in VLC, Premiere, DaVinci, and most video players. WebVTT (.vtt) is the web standard used in HTML5 video players and streaming platforms.
How are timestamps generated?
We split text into subtitle-sized segments (~10-12 words) and assign timestamps based on a natural reading speed of ~150 words per minute.
Can I use my own timestamps?
Currently we auto-generate timestamps. For audio with timestamps, use Audio to Text first — it returns word-level timing from Deepgram.
What's the maximum text length?
No hard limit. We've tested with texts up to 100,000 characters (roughly a 2-hour movie script).
Is the output ready for YouTube?
Yes. YouTube accepts both SRT and WebVTT uploads in its subtitle editor.