Beat Mapper Editor

The Beat Mapper is a browser-based editor for creating Cock Hero beat maps. It runs entirely in your browser — no installation needed. You can access it directly from the Beat Mapper page.

Loading Audio

Click Load Audio and select any audio file (.mp3, .wav, .ogg). The waveform will render in the main timeline. The editor supports files of any length.

Setting BPM & Offset

Enter the BPM manually or click Detect BPM to auto-detect from the audio. The Trim field sets the offset in seconds before beat 1 — this aligns the BPM grid to your audio.

Placing Beats

• Press Space during playback to place a beat at the current position
• Click directly on the beat lane to place beats manually
• Right-click a beat to cycle between stroke, rest, and delete
• Beats snap to the grid based on your current snap setting (1/4, 1/8, etc.)

Sections & Events

Double-click the section lane to add section markers (Intro, Verse, Chorus, etc.). Double-click the event lane to add events like media changes, dialogue triggers, and more.

Selection & Editing

• Shift+Drag to select a range of beats
• Ctrl+C / Ctrl+V to copy and paste selections
• Delete to remove selected beats
• Ctrl+Z / Ctrl+Y for undo and redo

Exporting

Use Save JSON (Ctrl+S) to save the beat map file, or Export .zip (Ctrl+E) to bundle the beat map with the audio as a WAV file for sharing.