Online Voice Recorder - Record Audio, Save as WAV or MP3

A voice recorder used to mean dedicated hardware or a desktop install; today the browser ships everything needed for a clean take. This recorder uses two web standards that every modern browser supports: getUserMedia to open the microphone, and MediaRecorder to capture the stream into compressed audio chunks in real time. An AnalyserNode from the Web Audio API computes the RMS level of the incoming signal about sixty times per second, which drives the live meter — the fastest way to know whether you are too quiet, clipping, or picking up nothing at all because the wrong input is selected. The recorder is built for long sessions. Compressed Opus or AAC capture keeps memory use to roughly half a megabyte per minute, so an hour-long interview is entirely practical, and the max-duration setting — 5, 15, 30, or 60 minutes, or no limit at all — acts as a safety net against forgotten tabs. More importantly, the take is crash-safe: every five seconds the recorder journals the latest chunk into IndexedDB, the browser's local on-device database. If the tab crashes, the laptop dies, or you close the window by mistake, reopening this page shows a recovery banner with the start time and approximate length of the unsaved take; one click reassembles the chunks into a playable recording with all the usual downloads. Nothing about this journal touches the network — IndexedDB lives on your disk, and the journal is wiped the moment a take is stopped normally or discarded. If storage is unavailable (private browsing modes sometimes block it), recording simply continues memory-only and tells you so. After you stop, three exports are offered. The untouched original — WebM or Ogg with the Opus codec on Chrome, Edge, and Firefox, MP4/AAC on Safari — is smallest and ideal for sharing. The 16-bit PCM WAV is a faithful, lossless rendering of the capture that every editor, DAW, sampler, and transcription pipeline accepts. The MP3 at 192 kbps, encoded on-device by a JavaScript LAME encoder that loads only when you ask for it, is the universal middle ground: small, editable enough, and playable on anything. A word of technique: aim for a signal that dances in the middle of the level bar and only occasionally approaches the top; a meter that slams red is clipping, and clipping cannot be repaired afterwards. Distance matters more than gain — a hand's width from the mouth, slightly off-axis, removes most plosives. Record a five-second test, play it back, and adjust before committing to the real take.