Online Voice Recorder

Capture microphone audio in the browser; codec/container support depends on MediaRecorder support.

Microphone

Browser recording format

Request echo cancellationRequest noise suppression

Ready

00:00

Microphone permission required

—Live RMS dBFS

—Live peak dBFS

—AudioContext rate

—Recorded file size

No recording yetRecording stays in this browser unless you download it.

MediaRecorder container/codec support and microphone processing vary by browser and device. The live meter is browser-visible signal level, not a calibrated sound-pressure meter. WebToolArc does not upload the recording for processing.

Trim a recording Trim edge silence Peak normalize

Audio processing cluster

Verify the source before trusting the render

Decode locally, confirm sample rate, channels, duration and level evidence, then apply the transformation. Keep codec, browser decode and export-format limits explicit.

Start: Audio Editor Inspect a File

All 24 audio tools

Sample RateResample rate, Nyquist and output frames Stereo → MonoDownmix, correlation and cancellation risk Speed ChangerDuration, pitch and resampling behavior Loop MakerLoop boundaries, seam and repeated duration Frequency AnalyzerFFT resolution and spectral evidence Bass BoosterLow-shelf gain and clipping headroom Audio JoinerClip order, transitions and output duration Loudness AnalyzerLUFS planning, peak and dynamics

Codec and measurement boundaries

Browser decoding differs across Safari, Chrome, Firefox, iOS, and Android. Rendered edits are exported as WAV unless a tool explicitly states another supported container. Loudness analysis is a practical BS.1770-style estimate rather than a certified meter, and sample clipping checks do not replace true-peak oversampling.

How to use the Online Voice Recorder

Choose a microphone and browser recording format, then record with a live input meter. Pause/resume, stop, preview, download, or discard the local recording.

Why use it

Capture microphone audio in the browser; codec/container support depends on MediaRecorder support.

Browser and audio limits

MediaRecorder formats and microphone processing options vary by browser and device. The live meter is browser-visible signal level, not a calibrated SPL meter, and recordings are not uploaded for processing.

Recording format is browser capability

Recorder MIME/device choices depend on MediaRecorder and available devices. A finished recording remains a distinct captured artifact and is not silently re-encoded when settings change.