Text to SRT

Create subtitle files from plain text with automatic timing

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Supported formats: SRT, VTT, ASS, SSA, SBV, SUB, SMI

About Converting Text to SRT

Converting plain text (.txt) files to SubRip (.srt) format transforms a simple transcript into time-synchronized subtitles ready for video. This tool takes your dialogue text and adds the structure, timing, and formatting needed to create working subtitle files for any video player or platform.

What is Plain Text (TXT)?

Plain text files (.txt) contain only readable characters—just words on lines without any special formatting, timestamps, or metadata. They're the simplest file format, readable in any text editor on any device. When you have a transcript, script, or dialogue list, it's usually in plain TXT format.

What is SRT (SubRip)?

SubRip (.srt) is the universal subtitle format that works on every platform—from VLC to YouTube. Created in 2000, SRT files contain numbered entries with HH:MM:SS,mmm timestamps that synchronize text with video playback. Each subtitle has a number, timing, and dialogue text.

What Happens During Conversion?

  • Line-by-line conversion: Each line of text becomes a separate subtitle entry
  • Sequential numbering: Subtitles automatically numbered (1, 2, 3...)
  • Timing added: Default timestamps generated (typically 2-3 seconds per subtitle)
  • SRT structure created: Proper HH:MM:SS,mmm timestamp format applied
  • Text preserved: All dialogue maintained exactly as written
  • Blank lines handled: Empty lines in text file treated as subtitle breaks

Timing Adjustment Required

The converter creates placeholder timestamps with default timing. You'll need to manually adjust timing using subtitle editing software (like Subtitle Edit or Aegisub) to synchronize with your actual video. Think of this as creating the subtitle skeleton—you'll fine-tune timing later.

TXT vs SRT: Transcript vs Synchronized Subtitles

TXT (Plain Transcript)

  • • Extension: .txt
  • • Contains: Only dialogue text
  • • Format: Plain text—no special structure
  • • Timing: None—no time information
  • • Synchronization: Not usable with video
  • • Structure: Free-form, no requirements
  • • Used for: Reading, transcripts, documents
  • • Best for: Text that doesn't need timing

SRT (Timed Subtitles)

  • • Extension: .srt
  • • Contains: Dialogue + timestamps + numbers
  • • Format: Structured subtitle format
  • • Timing: Precise HH:MM:SS,mmm timestamps
  • • Synchronization: Synced to video playback
  • • Structure: Strict format (number, time, text)
  • • Used for: Video playback with subtitles
  • • Best for: Watching videos with captions

Example Conversion

Original TXT 

Hello, how are you today?

I'm doing great, thanks for asking!

That's wonderful to hear.

Converted SRT 

1
00:00:00,000 --> 00:00:02,500
Hello, how are you today?

2
00:00:02,500 --> 00:00:05,000
I'm doing great, thanks for asking!

3
00:00:05,000 --> 00:00:07,500
That's wonderful to hear.

Note: Timestamps shown are default placeholder timing and need manual adjustment to match your video.

When to Convert Text to SRT

Script to Subtitles

Have a written script or dialogue list? Convert to SRT format, then use subtitle editing software to time each line to match your video. This creates the subtitle structure you need.

Translation Workflow

Translated dialogue in a TXT file? Convert to SRT to create subtitle files. If you have original SRT timing, you can match the translated text to the original timing structure.

Transcript to Captions

Have a transcript from automatic speech recognition or manual transcription? Convert to SRT format as the first step, then fine-tune timing in a subtitle editor to match the audio.

Manual Subtitle Creation

Creating subtitles from scratch? Write dialogue in a simple text file first, then convert to SRT. This gives you the proper subtitle structure before you begin the timing process.

Batch Subtitle Generation

Processing multiple transcripts? Convert them all to SRT format in batch, creating a baseline subtitle structure for entire video series or educational content libraries.

Educational Content

Teaching materials, presentations, or lecture transcripts in text format? Convert to SRT to add synchronized captions to your educational videos for accessibility and comprehension.

Frequently Asked Questions

You provide plain text (dialogue, transcript) and either timing information or let the tool generate estimated timing based on text length and reading speed settings.
Simple line-by-line text works best. Each line or paragraph becomes a subtitle entry. Blank lines can separate subtitle blocks.
Timing is estimated based on average reading speed (typically 150-200 words per minute) and character count. You may need to adjust timing to match your video.
Yes! Include timestamps in common formats (HH:MM:SS or MM:SS) at the start of lines, and the converter will use them instead of generating estimates.
Start with a transcript, convert to SRT with estimated timing, then use our Shift tool or video editing software to sync the subtitles precisely with your video.

Conversion Tips

Each line in your text file becomes a separate subtitle entry. Use blank lines to control subtitle breaks—double blank lines can indicate longer pauses.

The resulting SRT file is valid and works with video players immediately—but the timing won't match your video until you manually adjust it. Think of this as creating the subtitle skeleton.