9 audio tools, and counting

Free Audio Tools — Tone, Metronome & Recorder

Generate tones and noise, keep time with a metronome, record from your mic, trim audio, shift pitch and tap out BPM — Web Audio tools, nothing to install.

Runs on your device
No uploads
Free, no sign-up
Works on any device

Most used

Where most people start in audio tools.

All 9

MetronomeA synthesised-click metronome with BPM (20–300), time signature, accent-on-first-beat, visual beat indicator and tap-to-tempo — powered by Web Audio API, all in your browser.Tone GeneratorGenerate a pure tone at any frequency (20 Hz – 20 kHz) with sine, square, sawtooth or triangle waveform — displays the musical note and cents deviation, all in your browser.Audio TrimmerUpload an audio file, drag the start and end handles to select the clip you want and download the trimmed audio — all in your browser with no upload.BPM TapperTap any key or button in time with a song to instantly calculate the BPM (beats per minute). No audio, no mic — pure timing in your browser.

All audio tools

Tone GeneratorGenerate a pure tone at any frequency (20 Hz – 20 kHz) with sine, square, sawtooth or triangle waveform — displays the musical note and cents deviation, all in your browser.MetronomeA synthesised-click metronome with BPM (20–300), time signature, accent-on-first-beat, visual beat indicator and tap-to-tempo — powered by Web Audio API, all in your browser.Text to SpeechConvert any text to speech using your browser's built-in voices — choose voice, language, speed and pitch, then play, pause or stop, all in your browser with no upload.Audio RecorderRecord audio from your microphone directly in the browser — watch a live waveform, then download the recording as a WebM file. No upload, no account needed.BPM TapperTap any key or button in time with a song to instantly calculate the BPM (beats per minute). No audio, no mic — pure timing in your browser.Noise GeneratorGenerate white, pink or brown noise for focus, sleep or masking distractions — control volume and visualise the waveform, all powered by Web Audio API in your browser.Spectrum AnalyzerSee a real-time frequency spectrum of any sound from your microphone — bar or line FFT view, all processed in your browser via Web Audio API with no upload.Pitch ShifterUpload an audio file and shift its pitch up or down in semitones without changing the tempo — preview and download the result, all in your browser with no upload.Audio TrimmerUpload an audio file, drag the start and end handles to select the clip you want and download the trimmed audio — all in your browser with no upload.

What people use these for

Start from the job you need done.

Keep time while practisingRun a metronome from 20 to 300 BPM with time signature, accented downbeat and tap-to-tempo.Metronome Test speakers or hearing rangePlay a pure tone at any frequency from 20 Hz to 20 kHz, with the musical note and cents shown.Tone Generator Find a song's tempoTap along on any key and get the BPM — no microphone and no audio file needed.BPM Tapper Cut a clipDrop in an audio file, drag the start and end handles, and download just the part you wanted.Audio Trimmer Change key without changing speedShift a track up or down in semitones while the tempo stays exactly where it was.Pitch Shifter Focus or fall asleepGenerate continuous white, pink or brown noise to mask distractions, with the waveform visualised.Noise Generator

About these audio tools

Practising an instrument, testing a pair of speakers, trimming a voice note or working out the tempo of a track — all small jobs that somehow require downloading an app full of ads and permissions.

These run on the Web Audio API in the tab you already have open. Tones and clicks are synthesised in real time rather than streamed, recording asks only for the microphone, and files you drop in for trimming or pitch shifting are decoded locally and never uploaded.

Frequently asked questions

Do I need to install anything or grant permissions?

Nothing to install. Only the recorder and the frequency visualiser ask for microphone access, and that permission is requested by the browser when you start, not before.

Are my recordings or audio files uploaded?

No. Recording is captured to memory and saved straight to your device, and files you open for trimming or pitch shifting are decoded in the browser.

Why is there no sound until I click?

Browsers block audio until you interact with the page, so the audio engine only starts on your first click or tap. Also check that the tab isn't muted.

Can I damage my speakers or hearing with the tone generator?

Start at a low volume, especially with high frequencies and square waves, which carry much more energy than they sound like they do. Sustained loud tones are hard on both ears and tweeters.

What format do recordings download in?

WebM, which every modern browser records natively and most editors accept. Convert it afterwards if you need MP3 or WAV specifically.

All tools

Image Tools22 tools Developer Tools21 tools File Converters9 tools

Missing a tool you need?

Tell us which audio toolwould save you time and we'll look into building it.

Suggest a tool