tonal.fm
Offline Edition

tonal.fm Pro

All 77 professional audio tools in one file. No install, no internet, no ads — just open and go. Yours for a single one-time purchase.

Get Pro — $9Try the free web tools

$14.99Launch price · One-time payment · No subscription

100% Offline

Every tool runs locally in your browser. No internet, no server, works anywhere.

Zero Ads

A clean, distraction-free workspace. No banners, no trackers, no pop-ups.

No Install Required

Just a single HTML file. Open it in any browser — Chrome, Firefox, Safari, Edge.

One-Time Purchase

Pay once, own it forever. No subscriptions, no recurring fees, no account needed.

Free web tools vs. tonal.fm Pro

Same trusted tools. Pro adds offline access, removes ads, and fits in a single file.

FeatureFreePro
77 core audio tools
Works in your browser
Requires internet
Ad-free experience
Works fully offline
Single portable file
Free updates

77 tools, one file

Everything on tonal.fm, bundled together and ready offline.

Tone GeneratorMulti-ToneSweepNoiseHearing TestMetronomeBinaural BeatsSignal GeneratorWhite NoisePink NoiseBrown NoiseGreen NoiseGray NoiseBlue NoiseViolet NoiseDual Tone GeneratorBass Tone GeneratorHigh Frequency TonesDTMF TonesMorse Code GeneratorAlarm Generator8-Bit SFX GeneratorTest Tone DownloadsHearing Age TestMosquito ToneTinnitus MatcherSubwoofer TestSpeaker Balance TestSpeaker Phase TestHeadphone TestSurround Sound TestAudio Latency TestWater EjectFix My SpeakerSound TestBass TestDrum MachineBPM CounterChord PlayerChord ProgressionsOnline PianoTuning ForkInstrument TunerGuitar TunerUkulele TunerBass TunerViolin TunerPitch PipeInterval TrainerPerfect Pitch TestChord Ear TrainerEQ Ear TrainerBPM to MSRoom Mode CalculatorNote ↔ FrequencyNote FrequenciesdB ConverterTranspose CalculatorIsochronic Tones40 Hz Binaural BeatsBinaural Beats for SleepBinaural Beats for FocusSolfeggio FrequenciesShepard ToneDog Whistle432 Hz440 Hz528 Hz396 Hz639 Hz963 Hz1 kHz Test Tone40 Hz60 Hz100 Hz15 kHz17 kHz

tonal.fm Pro

$9$14.99

One-time purchase · Free updates

Buy & Download

Any Browser

Chrome, Firefox, Safari, Edge

Any OS

Windows, macOS, Linux, ChromeOS

Portable

Fits on a USB stick

Frequently asked questions

What is tonal.fm Pro?

tonal.fm Pro is the offline, ad-free edition of tonal.fm. It's a single HTML file containing 77 professional audio tools. Just open it in any browser — no install, no internet required.

How is it different from the free website?

The free web tools require internet and show ads. tonal.fm Pro is a one-time purchase that removes all ads and works completely offline. It's a single file you can keep on your computer, USB drive, or cloud storage.

Is it a subscription?

No. tonal.fm Pro is a single one-time purchase of $9. You own the file and there are no recurring fees.

What browsers does it work in?

tonal.fm Pro works in any modern browser — Chrome, Firefox, Safari, Edge, and more. It uses the Web Audio API which is supported by all major browsers.

Does it work offline?

Yes. The entire app is self-contained in a single HTML file. No internet connection is needed — it works anywhere, including air-gapped environments.

How do I get the download?

Purchases are handled securely through Gumroad. After checkout you receive an instant download of the HTML file and access to future updates.