HertzKit
Free web-based audio tools & online tone generator
Details
- External ID
- 1263375
- Source
- PH
- Company
- —
- Product
- HertzKit
- Website domain
- producthunt.com
- Launched
- Sept. 29, 2026
- Cohort
- —
- Upvotes
- 1
- Upvotes percentile
- 0.30815693820825313
- Tags
- Music, Developer Tools, Audio
- Fetched at
- Sept. 30, 2026, 1 a.m.
- Updated at
- Sept. 30, 2026, 1 a.m.
Description
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.
Enrichment
- Theme
- audio utilities and sound management
- Vertical
- Media & entertainment
- Function
- Dev tools
- Audience
- Prosumer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- web-based audio tools and tone generator for sound designers and engineers
- Manually corrected
- False
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 — 185 launches clear the similarity bar, closest 8 shown.
Attention rank: #104 of 186 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 335 days after the earliest competitor.
- Tone Generator · hn · 2026-08-02 · 10 upvotes · similarity 0.53
- SoundTest · ph · 2026-09-16 · 1 upvotes · similarity 0.51
- Real Decibel Meter · ph · 2026-09-23 · 1 upvotes · similarity 0.49
- SonicForge · ph · 2026-09-24 · 3 upvotes · similarity 0.48
- Synesthesia, make noise music with a colorpicker · hn · 2026-01-22 · 39 upvotes · similarity 0.48
- OpenMeters · hn · 2026-03-09 · 16 upvotes · similarity 0.46
- Eigendrum · hn · 2026-08-10 · 243 upvotes · similarity 0.46
- Hestia Tuner & Metronome · ph · 2026-09-25 · 1 upvotes · similarity 0.45
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a dev tools tool for Sales yet.