altrudevelop

Highlight text, add notes, and attach images on any webpage. Everything stored locally — no account, no cloud, no tracking.

Instant BPM, key & Camelot for YouTube, SoundCloud and Bandcamp. Tap tempo, metronome, pitch reference. No account, no tracking.

Secure, offline-first state tracing and diagnostic utility.

Create owner-reviewed AI SitePass Format packages with trusted site facts, agent boundaries, validation, and one free ZIP export.