Rakuhen - Video Editor & Subs

Rakuhen removes silence and generates subtitles automatically — saving you hours of tedious editing work.

AI AUTO SUBTITLES (NEW)
• One-click transcription powered by Whisper AI — fully on-device, no internet required
• Supports Japanese and English
• Subtitles appear on the timeline and video preview instantly
• Click subtitles on the preview to edit text, drag to reposition
• Customize each subtitle: font family, text color, background color, stroke/outline, size, weight, and alignment
• Multi-select subtitles on the timeline with drag or Shift+click for batch style editing
• Subtitles are burned into the exported video — no separate subtitle files needed

AUTOMATIC SILENCE DETECTION
• Import MP4 videos and let Rakuhen analyze the audio automatically
• Adjustable sensitivity threshold (-60 to -10 dB) to match your content
• Configurable minimum silence duration (0.1 to 3.0 seconds)
• Analysis completes in seconds, even for long videos

PROFESSIONAL TIMELINE EDITING
• 3-track timeline: subtitle, video, and audio tracks displayed separately
• Resizable track heights — drag the borders between tracks
• Visual waveform display for precise editing
• Click to select clips, keyboard shortcuts to cut (W) and delete (Delete)
• Horizontal pinch-to-zoom (1x to 50x) for fine-grained control
• Real-time audio level metering with L/R stereo visualization
• Non-destructive editing — your original files are never modified

FAST & CLEAN EXPORT
• Export to MP4 or MOV with subtitles burned in
• Progress bar with estimated time remaining
• No watermarks, no quality loss
• Open exported file directly in Finder

MULTI-VIDEO SUPPORT
• Drag & drop multiple videos to concatenate into a single timeline
• Batch processing for efficient workflows

PROJECT MANAGEMENT
• Auto-saved project history with thumbnails
• Track status: Not Processed → Editing → Exported
• See time saved with before/after duration comparison

PRIVACY-FIRST
• All processing happens locally on your Mac — video and audio never leave your device
• Whisper AI runs completely on-device, no cloud APIs
• Your content stays 100% private

FREE PLAN
• 2 video exports per month
• Full editing and subtitle features included

RAKUHEN PRO (Monthly ¥980 / Yearly ¥9,800)
• Unlimited video exports
• MP4 + MOV format support
• Priority access to future AI features

Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings.

Privacy Policy: https://rakuhen.ime-3.com/privacy
Terms of Service: https://rakuhen.ime-3.com/terms