HertzKit
Free web-based audio tools & online tone generator
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HertzKit is a collection of free, browser-based audio utilities designed for musicians, producers, and audio enthusiasts. Its flagship Online Tone Generator supports sine, square, sawtooth, and triangle waves from 1Hz to 20kHz+. It features an intuitive, ad-light interface perfect for testing subwoofers, calibrating sound systems, running frequency sweeps, or even safely removing dust and water from mobile speakers. No installation or registration required - just pure web audio.
PH · launched Sep 29, 2026 · 1 upvote (top 69%) · 2 views
Niche: audio editing and processing utilities · 217 launches, 23 in the last 7 days ▼ -30% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Prosumer
- Not AI
- Commercial product
- Music
- Developer Tools
- Audio
Visit website ↗ Source listing ↗
More like this: all 217 launches in audio editing and processing utilities →
Could you build this?
Yes The browser Web Audio API handles waveform oscillators and frequency generation natively with just a lightweight JavaScript UI.
Competitors
Other products that read as similar to this one : 405 launches clear the similarity bar, closest 8 shown.
Attention rank: #326 of 406 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 335 days after the earliest competitor.
- Hz generator · ph · 2026-11-11 · 1 upvotes · similarity 0.66
- ToneGen · ph · 2026-10-25 · 1 upvotes · similarity 0.62
- Tone Generator: Frequency Hz · ph · 2026-11-08 · 1 upvotes · similarity 0.60
- Tone Generator · hn · 2026-08-02 · 10 upvotes · similarity 0.53
- SoundTest · ph · 2026-09-16 · 1 upvotes · similarity 0.50
- SonicForge · ph · 2026-09-24 · 3 upvotes · similarity 0.48
- Real Decibel Meter · ph · 2026-09-23 · 1 upvotes · similarity 0.48
- TuneUp · ph · 2026-10-09 · 1 upvotes · similarity 0.48
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.