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50+ professional subtitle editing, conversion, and translation tools. All free, all in your browser.
Convert subtitle files between SRT, VTT, ASS, TXT, JSON, and SUB formats. Free online subtitle converter tools.
Convert SRT subtitle files to VTT format instantly online
Convert VTT subtitle files to SRT format for universal compatibility
Convert ASS/SSA subtitle files to simple SRT format
Convert plain text transcripts into timestamped SRT subtitles
Extract plain text from SRT subtitle files
Convert SUB/ MicroDVD subtitle files to SRT format
Convert SRT subtitles to structured JSON format
Convert JSON subtitle data back to SRT format
Clean up subtitle files by removing duplicates, empty lines, speaker names, sound effects (SDH), and fixing encoding issues.
Remove duplicate subtitle entries from your files
Clean up empty subtitle lines and gaps
Strip speaker names and labels from subtitles
Remove sound effects and SDH annotations from subtitles
Merge short subtitle lines into longer, readable blocks
Split long subtitle lines at optimal break points
Fix and standardize subtitle timestamps
Fix character encoding issues in subtitle files
Fix subtitle timing with delay tools, sync tools, FPS converters, overlap fixers, and gap adjusters.
Add or remove delay from subtitle timestamps
Synchronize subtitles with your video timeline
Convert subtitle timing between different frame rates
Fix subtitle duration for better readability
Shift all subtitle timestamps by a custom offset
Fix overlapping subtitle entries automatically
Add proper gaps between consecutive subtitles
Advanced subtitle retiming and adjustment tool
Edit subtitles online with our powerful editor, previewer, search and replace, and subtitle merger tools.
Full-featured online subtitle editor with live preview
Preview subtitle appearance and timing before export
View and compare multiple subtitle languages side by side
Find and replace text across your entire subtitle file
Rename multiple subtitle files at once
Merge multiple subtitle files into one
Add professional visual effects to subtitles: colors, shadows, karaoke, fade effects. Export as ASS format with full styling.
Translate subtitles, create bilingual texts, and manage localization workflows with our translation utilities.
AI-assisted subtitle translation workspace
Translate subtitle text between languages
View original and translated subtitles side by side
Complete subtitle localization workflow tool
Add and manage translation notes for subtitles
Split subtitle text into translation segments
Clean OCR output, format transcripts, and extract plain text from subtitle files.
Specialized tools for YouTube subtitle formatting, TikTok captions, podcast transcripts, and line break optimization.
Format subtitles optimized for YouTube upload
Format captions for TikTok videos
Translate videos by marking speech segments and adding subtitles interactively
Clean and format podcast transcripts
Optimize line breaks for better subtitle readability
Advanced tools including JSON formatting, regex testing, metadata extraction, subtitle validation, and batch processing.
Format and validate subtitle JSON data
Test regular expressions on subtitle text
Extract metadata from subtitle files
Validate subtitle file format and structure
Convert subtitle file encoding between formats
Process multiple subtitle files in batch