Audio Tools

Free browser-based audio tools that process everything locally on your device. Convert audio between MP3, WAV, M4A, OGG and FLAC, turn M4A voice memos into MP3, trim or merge clips, shrink file size, and record from your microphone — all without uploading a single byte. Private, fast and secure.

Audio Converter

Convert audio between MP3, WAV, M4A, OGG and FLAC — right in your browser, no upload.

MP3 / WAV / M4AOGG / FLAC100% local

M4A to MP3

Turn M4A voice memos and audio into MP3 — right in your browser, no upload.

M4A → MP3Adjustable bitrateLocal only

WAV to MP3

Convert WAV audio to MP3 to shrink file size — locally in your browser.

WAV → MP3Smaller filesLocal only

FLAC to MP3

Convert lossless FLAC to MP3 for universal playback.

FLAC → MP3Universal playbackLocal only

OGG to MP3

Convert OGG audio to MP3 in your browser.

OGG → MP3Local onlyNo upload

MP3 to WAV

Convert MP3 to uncompressed WAV for editing.

MP3 → WAVUncompressedLocal only

M4A to WAV

Convert M4A audio to WAV quickly and privately.

M4A → WAVLocal onlyNo upload

WAV to FLAC

Convert WAV to lossless FLAC to save space without quality loss.

WAV → FLACLosslessLocal only

Video to MP3

Extract audio from a video and save it as MP3.

Video → MP3Extract audioLocal only

Audio Compressor

Shrink audio file size by re-encoding to MP3 — right in your browser, no upload.

Smaller filesAdjustable bitrate100% local

Audio Cutter

Trim and cut audio to any start and end point — right in your browser, no upload.

Precise trimMP3 / WAV100% local

Audio Merger

Join multiple audio clips into one file — right in your browser, no upload.

Join clipsMP3 or WAV output100% local

Remove Silence

Trim leading and trailing silence from an audio file automatically.

Auto-detect silenceWAV or MP3 outputPrivate

Change Audio Speed

Speed up or slow down audio without changing the pitch.

Tempo, pitch preserved0.5×–2×Local processing

Reverse Audio

Flip any audio clip backwards in your browser — no upload, fully private.

Reverse in one clickMP3 or WAV outputPrivate & local

Audio Fade In / Out

Add smooth fade-in and fade-out to any audio clip locally.

Fade in & outMP3 or WAV outputPrivate processing

Volume Normalizer

Boost quiet audio to a consistent, comfortable volume.

Peak normalizationWAV or MP3 outputLocal & private

Pitch Shifter

Raise or lower the pitch of audio by semitones.

±12 semitonesKeeps durationLocal

Mono / Stereo Converter

Convert audio between mono and stereo channels.

Mono ⇄ stereoLocal & fastWorks with most formats

Vocal Remover

Remove vocals from a stereo track to make an instrumental.

Center cancelMP3 or WAV exportLocal only

Voice Recorder

Record audio from your microphone and download it as MP3 or WAV — right in your browser, no upload.

Mic captureMP3 / WAV outputLive preview

Microphone Test

Test your microphone with a live input level meter.

Live level meterList devicesNo recording

BPM Detector

Estimate the tempo (BPM) of any song or beat.

Estimate BPMNo uploadInstant

Metronome

A precise metronome for practice — runs in your browser.

30–250 BPMWeb AudioNo install

Guitar Tuner

Tune a guitar, bass or violin with your microphone.

Chromatic pitchGuitar string targetsYIN detection

White Noise Generator

Play white, pink or brown noise for focus, sleep or masking sound.

White / Pink / BrownAdjustable volumeLocal only