Lyrical Editor Plus

The Ultimate Modern Lyrics & Subtitle Editor

Lyrical Editor Plus is a professional-grade, web-based tool designed for creators who need precision, speed, and flexibility. Built with a mobile-first approach, it offers a sleek, dark-mode-ready interface for editing LRC, SRT, VTT, TTML, and YouTube SRV files.

For a version with Web Speech API Text-to-Speech, use the web-speech-api branch.

Powered by Google Gemini AI, it automates tedious tasks like transcription, synchronization, and content generation.

🚀 Key Features

🎧 Universal Media & Format Support

• Formats: Full support for LRC (Simple & Enhanced), SRT, VTT, TTML, JSON, TXT, and YouTube SRV formats (SRV1, SRV2, SRV3, including YouTube JSON3 variants).
• Media Sync: Load any audio or video file to visualize playback. The editor locks sync with your media for frame-perfect timing.
• Responsive Design: Optimized for desktops, tablets, and mobile devices with a seamless Light/Dark mode toggle.

🤖 AI-Powered Intelligence

• Transcription: Instantly convert audio/video to text using Gemini 2.5 Flash or Gemini 3.0 Flash. Choose between standard lines or Word-Level Karaoke mode.
• Creative Generation: Generate lyrics from scratch based on a mood or topic using Gemini 3.0 Pro.
• Smart Refinement: Use the AI Assistant to translate, fix grammar, or reformat lyrics with natural language instructions.

🎚️ Precision Editing Tools

• Karaoke Mode: Deep dive into 'Word' view to adjust millisecond-level timing for individual words. Built-in support for YouTube word-level timing (append="1" and <s> tags).
• Text-to-Speech (TTS): Built-in pronunciation checks. Click the speaker icon on any line or word to hear it spoken.
• Hot Fixes: One-click tools to:
  • Compact whitespace
  • Fill gaps between words
  • Remove empty entries
  • Auto-generate word timings

🎹 Keyboard Shortcuts

Key	Action
Space	Play / Pause Media
Ctrl + Z	Undo
Ctrl + Shift + Z	Redo
- / _	Nudge Time Backward (-100ms)
+ / =	Nudge Time Forward (+100ms)

🛠️ Advanced Toolkit

Located in the Global Tools menu and bottom toolbar:

• Shift Time: Bulk offset timestamps (e.g., +500ms) for the entire file or selected rows.
• Find & Replace: Global text substitution.
• Looping: Toggle repeat mode to focus on specific sections during playback.
• Sort Rows: Chronologically reorder cues if they get out of sync.

📦 Export Options

• Subtitles: SRT, VTT, TTML, LRC, YouTube SRV1/SRV2/SRV3
• Karaoke: Enhanced LRC, VTT (Karaoke), TTML (Span tags), YouTube SRV (Words)
• Data: Structured JSON, TXT

🔧 Setup & Installation

1. Clone the repository.
2. Install dependencies:

   npm install

3. Create a .env file and add your Google Gemini API key:

   GEMINI_API_KEY=your_google_api_key

4. Start the development server:

   npm run dev

📄 License

MIT License.