Subtitle Editor

Subtitle Editor - Edit SRT & VTT Files Online

A powerful online subtitle editor that lets you edit, modify, and convert SRT and VTT subtitle files directly in your browser. All processing happens locally - your files never leave your device.

What is a Subtitle Editor?

A subtitle editor is a tool for creating and modifying subtitle files. This editor supports:

- SRT (SubRip) - Most common format
- VTT (WebVTT) - Web standard format

You can edit timing, text content, merge entries, split entries, and shift all timestamps. Perfect for syncing subtitles or fixing timing issues.

How do I use this tool?

Using the Subtitle Editor:

1. Load a subtitle file (SRT or VTT) or create a new one
2. Edit entries in the table:
- Modify start/end times
- Edit subtitle text
- Add or delete entries
3. Use toolbar actions:
- Shift Times: Move all timestamps
- Merge: Combine selected entries
- Split: Divide one entry into two
4. Export as SRT or VTT format

All changes are made in real-time in the table.

What is the difference between SRT and VTT?

SRT (SubRip Subtitle):
- Most widely supported format
- Simple text-based format
- Uses comma for milliseconds (00:00:00,000)
- Works with most video players

VTT (WebVTT):
- Web standard for HTML5 video
- Supports styling and positioning
- Uses period for milliseconds (00:00:00.000)
- Required for web video players

Both formats contain the same basic information: timing and text.

How do I sync subtitles?

To sync subtitles with video:

1. Find an entry that's out of sync
2. Note how many seconds off it is
3. Use 'Shift Times' to adjust:
- Positive value: Delays subtitles
- Negative value: Makes subtitles earlier
4. Apply to all or selected entries

For example, if subtitles appear 2 seconds too early, shift by +2 seconds.

Can I merge multiple subtitles?

Yes! To merge subtitle entries:

1. Select the entries you want to merge (use checkboxes)
2. Click 'Merge' in the toolbar
3. The entries will combine into one:
- Start time from first entry
- End time from last entry
- Text combined with line breaks

This is useful for combining short entries into longer ones.

Is my data safe?

Yes, completely safe:

- All processing happens in your browser
- No files are uploaded to any server
- Your subtitles never leave your device
- No data is stored or tracked

This is a 100% client-side tool. You can even use it offline after the page loads.

Key Features

• Edit SRT and VTT subtitle files
• Modify start and end times
• Edit subtitle text with multi-line support
• Add, delete, and insert entries
• Shift all timestamps at once
• Merge multiple entries into one
• Split entries into two
• Renumber entries automatically
• Convert between SRT and VTT formats
• Preview output before download
• Copy to clipboard
• 100% client-side processing
• No file upload required
• Dark mode support
• Mobile-friendly interface