Audio Converter Online
Convert any audio or video file to MP3 or WAV right in your browser. Drop a file, pick the output, download — no sign-up, and your file is never uploaded.
How to Convert Audio Files
No account, no upload — three steps on your own device.
Drop Any File
Audio or video — MP3, WAV, FLAC, M4A, OGG, AIFF, MP4, MOV, and more, up to 200 MB. It decodes right in the browser.
Pick the Output
MP3 with your choice of bitrate, or WAV with your choice of bit depth. Adjust sample rate and channels if you need to.
Convert & Download
Hit convert and the file downloads instantly — no queue, no email link, no watermark.
Why Notevibes Audio Converter
Converter sites make you upload and wait. This one doesn’t.
Every Common Format In
MP3, WAV, OGG, M4A, FLAC, AAC, WebM, Opus, AIFF — plus MP4, MOV, MKV, and 3GP video when you just want the audio.
Real Quality Controls
Pick MP3 bitrate from 64 to 320 kbps or WAV bit depth (16/24/32-float), and change sample rate and channels if you need to.
Never Uploaded
Conversion runs entirely in your browser. Your file never leaves your device — there is nothing to delete because nothing was sent.
Instant Download
No queue, no email link, no waiting for a server. The converted file downloads the moment encoding finishes.
Video to Audio Too
Drop a video and keep just the soundtrack — perfect for pulling audio out of screen recordings and clips.
Free, Anywhere
No watermark, no sign-up, no file-per-day limits. Works on phones, tablets, and laptops in any modern browser.
Nothing to Upload, Nothing to Leak
The conversion happens on your own device. Your file never touches a server — which is a stronger promise than any “we delete it later”.
No Upload
Decoding and encoding run on your device
No Account
Start converting immediately
Works Offline
Once the page loads, no connection needed
What People Convert
One tool for every “this file won’t open” moment.
Voice Memos to MP3
Turn phone recordings into files that play anywhere
Video Soundtracks
Extract the audio from clips, lectures, and screen recordings
WAV Masters to MP3
Shrink big studio files into shareable MP3s at the bitrate you choose
Old Format Cleanup
Modernize AIFF, Opus, and OGG files into MP3 or WAV
Smaller Files
Re-encode at a lower bitrate when size matters more than fidelity
Sensitive Audio
Convert private recordings without them ever touching a server
The Converter That Doesn’t Ask for Your File
You know the routine on other converter sites: upload your file, watch a progress bar crawl, wait in a “queue”, maybe hand over an email address — for a ten-second conversion. This converter skips the server entirely. Your browser decodes the file, re-encodes it in the format you picked, and hands it straight back. Most files convert in seconds, because they never went anywhere.
Private by physics, not by promise
Every online converter promises to delete your upload eventually. This one never receives it. The file stays on your device from drop to download — which is why it’s safe for voice memos, meeting recordings, and anything else you wouldn’t put on someone else’s server. It even keeps working if you lose connection after the page loads.
The controls that matter, none that don’t
Pick MP3 and choose any bitrate from 64 to 320 kbps — small enough for email or clean enough for music. Pick WAV for lossless 16, 24, or 32-bit float output. Need 44.1 kHz for a project, or mono for a phone system? Sample rate and channel options are right there. Drop a video instead of audio and it quietly extracts the soundtrack.
Free because it costs us nothing to run
Server-based converters gate their tools because every conversion costs them compute. Since this one borrows your device’s processor for a few seconds, there’s nothing to meter — no watermark, no daily cap, no sign-up, files up to 200 MB.
When you need more than a format change
If the file also needs trimming, the audio trimmer works the same no-upload way, and the video to MP3 page is a shortcut for soundtrack extraction. For real editing — cuts, effects, AI cleanup — open the file in the online audio editor.
Need to Do More Than Convert?
The full Notevibes editor trims, mixes, cleans up, and applies AI tools to your audio — then exports to MP3 or WAV.
Free to try · No credit card required
Related Audio Tools
More free AI audio tools from Notevibes — same engine, no sign-up.
MP3 Converter
Convert any audio or video file to MP3.
Audio to MP3 Converter
Universal audio-to-MP3 converter.
MP3 to WAV
Convert MP3 to lossless WAV for editing.
Sample Rate Converter
Resample audio to 44.1 kHz, 48 kHz, and more.
Audio Extractor
Pull the audio track from any video file.
MP3 Editor
Full MP3 editor with timeline, effects, and export.
Audio Converter FAQ
Is my file uploaded to a server?
No — and that's the point. The converter decodes and re-encodes your file entirely in your browser using your own device's processor. Nothing is transmitted, so there's nothing for us to store or delete.
What formats can I convert?
In: MP3, WAV, OGG, M4A, FLAC, AAC, WebM, Opus, AIFF, and video files (MP4, MOV, MKV, 3GP) up to 200 MB. Out: MP3 at 64–320 kbps or WAV at 16-bit, 24-bit, or 32-bit float.
Is it really free?
Yes — completely. Because the conversion runs on your device rather than our servers, there's no processing cost to gate: no watermark, no sign-up, no daily limits.
Can I change the sample rate or make it mono?
Yes. Alongside format and bitrate you can resample to 48 kHz, 44.1 kHz, or 22 kHz and switch between stereo and mono before converting.
Why did my file fail to decode?
The converter can read anything your browser can play. Files that fail are usually DRM-protected, corrupted, or in a rare codec — try re-exporting the source or use a different copy.
Does it work on my phone?
Yes — iOS and Android browsers included. Very large files convert faster on a laptop simply because the processor is faster, but the tool is the same.
Will converting reduce quality?
WAV output is lossless. MP3 is lossy by design — at 192 kbps and above most people can't tell the difference. Converting MP3 to WAV doesn't add quality back; it just changes the container.