Subtitle Converter

Convert subtitles between SRT, WebVTT, and TXT with millisecond time-sync offset and cleanup.

Browser onlyYour data never leaves this device.

100% in-browser subtitle processing. Your transcript files, video captions, and scripts are converted directly on your device with no server upload.

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Quick Actions:

3 cues detected • ~12.0s video runtime

Drop subtitle file (.srt, .vtt, .txt)

SRT, WebVTT, TXT

Drop files here or Browse

Drag and drop works here too.

Or paste raw subtitle text below directly.

Source Subtitles

Paste Subtitle Text (SRT or VTT)

Target Output Format

Timing Synchronization ShiftNo offset

Strip HTML and styling tags (, , )

Converted Output

25 words

WEBVTT

1
00:00:01.500 --> 00:00:04.200
Welcome to our comprehensive video tutorial.

2
00:00:04.500 --> 00:00:08.100
Today we will explore client-side web utilities
and privacy-first tools.

3
00:00:08.400 --> 00:00:12.000
No files are ever uploaded to any cloud server!

Video streaming platforms, modern HTML5 media players, and accessibility guidelines demand different caption standards, ranging from traditional SubRip (.srt) files to HTML5 WebVTT (.vtt) specifications and raw text transcripts. Furthermore, slight audio latency variations between video re-encodes frequently cause subtitles to drift out of sync with spoken dialogue. This interactive subtitle converter and synchronizer resolves formatting mismatches and timing drift effortlessly. Convert seamlessly between SRT, WebVTT, and plain text formats while adjusting cue timestamps forward or backward by exact millisecond or second offsets. Clean unnecessary HTML tags, inspect timing in an interactive cue table, and download production-ready caption files instantly with zero server telemetry.

How to use Subtitle Converter

Upload a subtitle file (.srt, .vtt, or .txt) or paste raw subtitle text into the input panel.
Choose your target conversion format: WebVTT (.vtt), SubRip (.srt), or Plain Text (.txt).
Optionally shift the cue timing forward or backward using the millisecond and second offset buttons.
Toggle formatting options such as stripping HTML tags (, , ) or inspecting cues in the table view.
Copy the converted subtitle markup or click Download to save the production-ready caption file.

What you get

Properly formatted WebVTT or SRT subtitle files with compliant timestamp delimiters (commas for SRT, dots for VTT).
Clean plain text transcripts stripped of all sequence numbers, timecodes, and HTML markup tags.
Interactive cue table detailing cue numbers, start times, end times, and spoken dialogue lines.
Live statistics summary reporting total cue count, total video duration, and transcript word count.

When to use Subtitle Converter

HTML5 Web Video Developers — Convert existing legacy SRT files into W3C-compliant WebVTT tracks for native web video players.
Content Creators & Video Editors — Resynchronize out-of-sync caption files when editing cuts introduce audio delay.
Accessibility & SEO Teams — Extract spoken dialogue into clean plain text for blog posts, transcripts, and screen reader summaries.
Course Creators & Podcasters — Prepare multilingual caption tracks for learning management systems (LMS) and YouTube uploads.

Frequently asked questions about Subtitle Converter

What is the primary difference between SRT and WebVTT?

SubRip (.srt) is an older standard that separates milliseconds with commas (00:01:23,456), while WebVTT (.vtt) is the modern W3C standard for HTML5 <track> elements that begins with a 'WEBVTT' header and separates milliseconds with dots (00:01:23.456).

How do I fix subtitles that appear too early or too late in my video?

Use the timing synchronization shift controls. If subtitles appear 1 second too early, add a +1.0s offset to delay them. If they appear too late, apply a negative offset (-1.0s or -500ms) to bring them forward.

Can I extract only the spoken words into a text document?

Yes, select 'Plain Text (.txt)' as the target format. The tool automatically removes all timestamp lines and sequence numbers, providing clean, readable dialogue ready for transcripts or articles.

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