What it does
Useful, focused capabilities
- Explicit microphone permission
- Live waveform and dBFS meter
- Device and processing constraints
- Pause and resume
- Local reopen verification before download
Audio capture · browser-local
Private online voice recorder
Record microphone audio locally with a live waveform, dBFS meter, device choice, browser-supported formats, pause, preview, verification, and download.
Work happens in the current browser. The route does not require an account or a server-side processing job.
Interactive browser workspace
Private online voice recorder
The live tool is loaded in this browser only. This tool can request microphone only after you choose the relevant action.
Open this local tool →Browser compatibility
Requirements and honest fallbacks
JavaScript; HTTPS or localhost; explicit microphone permission; getUserMedia and MediaRecorder support.
- JavaScript
- HTTPS or localhost
- getUserMedia
- MediaRecorder
- microphone
- Web Audio
- device selection
- download support
Questions people ask
Clear answers and limits
Is my microphone audio uploaded?
No. getUserMedia feeds MediaRecorder and the waveform analyser in the current page. The result is a local Blob URL.
Why is MP3 not offered?
The standard browser MediaRecorder API commonly produces WebM/Opus, Ogg/Opus, or MP4/AAC depending on the browser. The tool offers only formats the browser reports as supported.
What does dBFS mean?
It is a digital signal level relative to the maximum representable sample, not calibrated room loudness in dB SPL.
Why is there a ten-minute limit?
This reference build buffers recording chunks in memory, so a bounded duration reduces mobile crash risk.
Does noise suppression improve every recording?
Not necessarily. Browser processing can help speech but may color music or ambience. Turn it off when fidelity matters more than speech cleanup.