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HertzKit

45 free browser-based music and audio tools. Tuner, mix comparison, ear trainer, audio editor, practice sessions with feedback, and teacher resources. Everything processed on your device — no uploads required.

EducationWeb application / online tool

hertzkit.com

About HertzKit

HertzKit is a free online platform featuring 40 music and audio tools designed for musicians, music producers, singers, composers and music students. It brings together practical tools for instrument tuning, BPM detection, audio analysis, MIDI processing, music theory, chord exploration, ear training and audio editing. Visitors can work with audio files, explore musical ideas, analyze recordings and improve their music practice directly in their web browser. HertzKit aims to make useful music technology accessible through an intuitive interface, without requiring complex software installations.

Key features

  • Online instrument tuner and BPM detection tools
  • Audio analysis, editing and conversion utilities
  • MIDI processing and music transcription tools
  • Chord progressions, scales and music theory tools
  • Ear training and practical music learning resources

Who is this website for?

HertzKit is for musicians, music producers, singers, songwriters, composers, music students and anyone who works with audio or wants to improve their musical skills.

What can visitors do here?

Visitors can tune an instrument, measure song tempo, analyze audio recordings, edit MIDI files, explore chord progressions and practice music theory using free online tools.

What makes it different?

HertzKit brings 45 practical music and audio tools together in one accessible platform, allowing musicians to tune, analyze, edit, learn and create without switching between multiple websites or installing complex software.

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