Audio stays on your device
Capture, encoding and playback all happen locally. Not a single audio byte is sent to a server, so interviews and unreleased material are fine.
Voice Recorder
Record with your microphone, watch the level and waveform, download a WAV
Start recording
Press record, talk, download the WAV. Audio never leaves your device — no upload, no account.
Up to 60 minutes, then it stops automaticallyAudio is processed on your device and never uploaded.
Record in the browser, get a WAV you can actually use
Press record, speak, download: a 16-bit mono WAV in three steps. Everything runs in this page — the audio is never uploaded, no account is needed and no credits are charged. Voice-overs, interviews, meeting notes and course narration all work.
No upload · No sign-up · Free for now
A format you can count on
Always 16-bit WAV. Other web recorders let the browser decide: Chrome gives WebM, Safari gives M4A, and sometimes the file has no duration header at all — you find out when you import it.
You can see it's recording
Live level meter, scrolling waveform and a clipping warning. Hitting the ceiling turns red immediately, instead of ruining a ten-minute take.
Pauses don't count
While paused, nothing is timed and nothing is written to the file. Resume and the take continues — no restarting from scratch.
What a browser can and cannot do here
What it does well: microphone capture, live metering and waveform, pause and resume, device selection, WAV encoding. All of it runs in Web Audio, so there is no server round-trip and no queue.
What it can't do: model-based noise removal, dereverb or transcription. The browser only offers its own echo cancellation, noise suppression and auto gain, which you can switch off to keep the raw signal. A real gate, three-band EQ and loudness normalisation live in Audio Studio.
Where the file goes next
WAV is the lossless exchange format: Premiere, Audition, Audacity, DaVinci Resolve and transcription services read it directly, no transcoding needed. The trade-off is size — about 5.76 MB per minute for mono at 48 kHz, roughly 345 MB per hour.
If you want to edit it (cut flubs, tame the noise floor, hit a loudness target), drag the file into Audio Studio. Those steps run on-device too and upload nothing.
Three steps to a file
- 01Pick a microphone
The system default is used unless you choose otherwise. External mics and interfaces appear in the list once permission is granted, and the choice is remembered.
- 02Press start
Keep the 3-second countdown on to get settled, or switch it off to start immediately. Watch the level meter — don't let it sit at the top.
- 03Listen, then download
After stopping, play it back: click the waveform to jump to a spot. Rename the file and download a 16-bit WAV.
Compared with other web recorders
| OpenFilmo Recorder | Typical web recorder | |
|---|---|---|
| Output format | 16-bit WAV (lossless) by default, one-click MP3 | Whatever the browser gives: WebM / M4A, often without a duration header |
| Where audio goes | Stays on your device | Usually uploaded and stored for a while |
| Account and cost | No sign-up, no credits | Some require an account or payment to download |
| Length and size | Up to 60 minutes mono: ~345 MB WAV, ~43 MB as MP3 | Limits vary; compressed and lossy |
FAQ
- Is my recording uploaded?
- No. Capture, encoding and playback all happen in this page. No audio bytes are sent anywhere.
- How long can I record, and how big is the file?
- Up to 60 minutes per take, then it stops automatically. Mono 16-bit at 48 kHz is about 5.76 MB per minute, so roughly 345 MB at the limit.
- WAV or MP3 — which should I take?
- The default is a lossless WAV that every editor and transcription service opens. After recording, Convert to MP3 compresses it on your device to 96 kbps mono — about 1/8 the size, plenty for speech — with nothing uploaded. Keep the WAV as your master.
- Can it remove noise or transcribe?
- No. There is no denoise model or speech recognition on-device. You get the browser's own echo cancellation, noise suppression and auto gain, which you can turn off to keep the raw signal. A proper noise gate and loudness normalisation are in Audio Studio; transcription is a server-side feature we haven't shipped.
- Does it work on a phone?
- Yes, over HTTPS with microphone permission. On iOS the browser may suspend recording when you switch apps or lock the screen, so keep the page in the foreground for long takes.