AnyTool
Your files never leave your device. All processing happens locally in your browser.

Is there a free online metronome, tuner and recorder in one page?

AnyTool's Music Practice Companion combines a sample-accurate metronome (any time signature, subdivisions, accents, tap tempo and a tempo trainer), a chromatic tuner with adjustable A4 and cents readout, a microphone recorder, and a slow-downer/looper for backing tracks — all on one page sharing a single audio engine. Recordings export to WAV, MP3, M4A, OGG or FLAC. Everything runs in your browser; mic audio and recordings never leave your device — no upload, no sign-up, no CDN.

  • Sample-accurate metronome with subdivisions, accents and a tempo trainer
  • Chromatic tuner (adjustable A4, cents) + mic recorder in one page
  • Slow-downer/looper for backing tracks; export WAV/MP3/M4A/OGG/FLAC
  • 100% in your browser — mic audio never leaves your device, no sign-up

What is

Music practice companion

A music practice companion bundles the core practice tools — a metronome for steady tempo, a chromatic tuner that reports note and cents from mic input, a recorder, and a slow-downer/looper to practice along with tracks. A client-side companion runs all of these in the browser on one shared Web Audio engine, so mic audio and recordings stay on the device.

Audio Tools

Related terms

metronomechromatic tunertap temposlow downercents

How to Practice with the Metronome and Tuner

Use a metronome, tuner, recorder and slow-downer in your browser.

30 secWeb browserMicrophone
  1. 1

    Set the tempo

    Set the BPM, time signature and accents, or tap the tempo.

  2. 2

    Tune and play

    Allow the mic to tune your instrument and see the cents readout while the click runs.

  3. 3

    Record or slow down

    Record a take or load a track to slow down and loop, then export — nothing is uploaded.

Result: A practice session with optional recording

Frequently Asked Questions

Yes — both run together on one shared audio engine.

A single AudioContext and mic stream let you tune while the click runs and even record over the metronome, unlike sites that split these across separate pages.

Yes — it uses a sample-accurate Web Audio lookahead scheduler.

Clicks are scheduled ahead against the audio clock so the beat never drifts, even with the tab backgrounded — far steadier than JS-timer-based free metronomes.

No — tuning and recording happen entirely in your browser.

Mic audio and recordings never leave the device, and recordings export to WAV/MP3/M4A/OGG/FLAC (fixing the iOS/Safari WebM-only problem), with no sign-up or caps.

Detailed Explanation

Methodology

How the Music Practice Companion Works

AnyTool runs a metronome, tuner, recorder and slow-downer on one shared Web Audio engine in the browser. The metronome uses a lookahead scheduler that schedules oscillator clicks ahead against the audio clock for sample-accurate, drift-free timing — with any time signature, subdivisions, per-beat accents, tap tempo and a tempo trainer. The tuner takes one mic stream into an AnalyserNode and runs the McLeod Pitch Method, gated by clarity, to show note + cents against an adjustable A4. The recorder captures the same mic stream and exports to WAV, MP3 (libmp3lame), M4A (AAC), OGG (libvorbis) or FLAC through a self-hosted single-threaded ffmpeg.wasm engine (bundled core, no CDN), fixing the iOS/Safari WebM-only problem. A slow-downer/looper decodes a backing track for pitch-preserving tempo change and A–B looping.

  • Runs client-side — mic audio and recordings stay on the device
  • Sample-accurate lookahead metronome with accents and trainer
  • Chromatic tuner (McLeod Pitch Method) with adjustable A4 + cents
  • Recorder exports WAV/MP3/M4A/OGG/FLAC (not WebM-only)
  • Self-hosted ffmpeg core (bundled) — no CDN
  • Built-in slow-downer/looper for backing tracks
Privacy & Security

All-in-One and Private vs Other Practice Tools

metronome.online and Gibson are metronome-only, Tuner Ninja/GuitarTuna/muted.io are tuner-only, and the genuinely powerful bundles (Soundbrenner, TonalEnergy, Tunable) live in paid native apps. AnyTool combines a sample-accurate metronome, chromatic tuner, recorder and slow-downer in one free browser page, with mic audio and recordings staying on the device — no account, upload cap or watermark.

Practice tools: AnyTool vs typical tools
CapabilityAnyToolTypical tools
Data handlingIn your browserVaries
Metronome + tuner togetherYes (one page)Often separate
Metronome timingSample-accurateOften drifty
Recorder exportWAV/MP3/M4A/OGG/FLACOften WebM-only or none
Slow-downerBuilt inRare

AnyTool is a privacy-first client-side practice companion — everything runs locally and nothing is uploaded.