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Free & Secure Closed Caption Converter

Convert caption files between SRT, VTT, DOCX, and TXT formats entirely in your browser. Perfect for institutions with strict privacy requirements.

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100% Privacy Guaranteed

Your data never leaves your device. All closed-caption conversions happen securely in your browser, providing complete privacy for your caption files. No uploads, no servers, no compromises.

No server uploads

Files are processed entirely in your browser using JavaScript. Nothing is transmitted to our servers.

No AI or LLM processing

Pure file format conversion with no AI analysis, no language models, no machine learning. Your data is never sent to ChatGPT, Claude, or any other AI system.

FERPA & HIPAA safe

Perfect for educational institutions and healthcare organizations that need to maintain strict privacy compliance.

Convert Without Worry

Multiple formats

Convert between SRT, WebVTT, DOCX, and TXT formats. Support for both timestamped and plain text outputs.

Batch processing

Convert multiple caption files simultaneously. Process entire course catalogs or video libraries in one go.

No registration

Start converting immediately with no account required. Fast, user-friendly interface perfect for quick conversions.

Supported Conversions

From SRT (SubRip)

Convert SRT files to WebVTT for HTML5 video players, DOCX for Microsoft Word editing, or TXT for plain text transcripts,with or without timestamps.

From WebVTT

Convert WebVTT files to SRT for broader video player compatibility, DOCX for document editing, or TXT for simple text output.

Timestamp options

Choose to include or remove timestamps when converting to DOCX or TXT formats. Perfect for creating clean transcripts or preserving timing information.

Perfect For

Educational Institutions

  • Convert lecture captions for different platforms
  • Create accessible transcripts for students
  • Maintain FERPA compliance with no cloud processing
  • Batch process entire course libraries

Video Editors & Producers

  • Convert captions between editing platforms
  • Generate scripts from subtitle files
  • Protect client confidentiality
  • Work offline with sensitive content

Transcriptionists

  • Deliver captions in multiple formats
  • Convert between client-required formats
  • Maintain professional confidentiality
  • Automate captioning workflow

Healthcare Organizations

  • Convert medical training video captions
  • Ensure HIPAA compliance
  • Process sensitive patient education materials
  • No risk of PHI exposure to third parties

How It Works

1

Select your caption files

Upload one or more SRT or WebVTT files from your computer. Files are processed entirely in your browser.

2

Choose your output format

Select from SRT, WebVTT, DOCX, or TXT. For document formats, choose whether to include timestamps.

3

Download converted files

Instant conversion with immediate download. For batch conversions, all files are packaged in a convenient ZIP file.

Securely Convert Your Captions for Free

No registration, no uploads, no AI processing. Just fast, secure caption format conversion.

Try the Caption Converter

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