Ritmo is a browser audio tool for capturing, analyzing, and organizing audio directly from browser tabs.

Built for producers, editors, DJs, remixing, sampling, and browser-to-DAW workflows.

Features include:
• Browser tab audio capture
• Deterministic DSP BPM & key detection
• Searchable sound library management
• Real-time audio FX
• Scale-aware Virtual Piano
• BPM Tapper & Metronome
• Local file BPM/key analysis
• Background recording support
• 24-bit WAV export
• Fully local browser-based processing

It was originally started as a small internal utility for quickly capturing browser audio locally during production sessions, then gradually evolved into a more complete browser-native audio system focused on fast creative workflows without routing setups, sketchy converter sites, cloud analyzers, or fragmented tools.

Everything runs locally inside the browser.

No uploads.
No cloud processing.
No accounts.

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Docs: https://ritmo.vrsm.cc/docs
Comparison: https://ritmo.vrsm.cc/comparison
FAQ: https://ritmo.vrsm.cc/faq