VTT Editor Pro v3.1 ‐ New Features

✨ VTT Editor Pro v3.x - New Features

Everything added since v2.x, across the v3.0 and v3.1 releases.

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🆕 v3.1

📋 Copy / Paste Cues

• Copy the selected cue with Ctrl+C
• Paste it at the playhead with Ctrl+V — keeps text, color and duration
• Overlap-aware: respects the Allow Overlap toggle

⏱️ Go to Time

• Jump to a precise timestamp
• Accepts MM:SS.mmm, HH:MM:SS.mmm or raw seconds
• Press G to focus the field instantly

⌨️ Customizable Keyboard Shortcuts

• New ⌨️ Shortcuts panel listing every action
• Click a shortcut, then press the new key combo to rebind it
• Duplicate-binding protection and one-click Reset to defaults
• Saved to localStorage across sessions
• See the Keyboard Shortcuts (v3.1) page

🗂️ Batch Export — All Tracks at Once

• New All Tracks (.zip) entry in the Export menu
• Bundles one .vtt per non-empty track into a single .zip
• Uses a built-in ZIP writer — no extra dependency, fully offline

🔍 Ctrl + Scroll Zoom

• Hold Ctrl and scroll over the waveform to zoom in/out — no more hunting for the zoom buttons

⏸️ Auto-Pause on Edit

• Playback pauses automatically when you start editing a cue, so the audio doesn't run away while you type
• Toggle it from the top bar

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🆕 v3.0

✂️ Advanced Editing

• Split Cue — divide a cue at the playhead (validates a 0.1s minimum per cue)
• Merge Cues — combine two consecutive cues (text joined with a line break, warning if the gap > 1s)
• Shift All Timings — offset every cue, with a color-coded preview, quick presets (±0.5/2/5s) and ±1s / ±0.1s fine-tuning

🔍 Search & Navigation

• Real-time cue search with live filtering, an "X / Y found" counter and highlighted matches
• Go to Cue — click a cue in the list to jump to its position

📊 Statistics & Validation

• Stats panel: total cues, duration, average duration, words, WPM, characters
• Validation with 6 professional rules (min/max duration, line/total length, reading speed, empty text)
• Per-cue icons (⚠️/❌) and clickable issues to jump to the problem

Rule	Threshold	Type
Minimum duration	< 0.5s	Error
Maximum duration	> 10s	Warning
Line length	> 42 chars	Warning
Total length	> 84 chars	Warning
Reading speed	> 25 CPS	Error
Empty text	No content	Error

🎨 Interface

• 5 themes: 🌙 Dark, ☀️ Light, 💙 Blue, 💜 Purple, 🧡 Orange (persisted, waveform recolors automatically)
• Editable markers: double-click to edit, custom labels, 6 colors
• Minimap: global timeline overview with cues, markers, playhead and click-to-seek

📥 Import / 💾 Export Formats

Format	Extension	Import	Export
VTT	.vtt	✅	✅
SRT	.srt	✅	✅
ASS	.ass, .ssa	✅	✅
SBV	.sbv	✅	✅
DFXP	.dfxp, .ttml, .xml	✅	✅
JSON	.json	✅	✅

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🗺️ Coming in v3.2 (Planned)

• Loop a region — repeat a segment on loop to nail the timing
• Insert-cue shortcut — add a cue at the current position without using the button
• Video preview — accept MP4 video alongside MP3, with subtitles overlaid on the video

See the full CHANGELOG.