Can I download or convert YouTube videos?

No. This tool only converts files already on your device that you have the right to use. It doesn't download from websites, and it can't process copy-protected (DRM) media.

Will converting MP3 to FLAC or WAV improve quality?

No. Lossless formats preserve what's there, but they can't restore detail an MP3 already discarded. The file just gets bigger.

Which format is best for podcasts?

MP3 at 96–128 kbps mono is the widely used standard: small, and playable everywhere.

Are my files uploaded?

No. Conversion runs in your browser, on your device.

Audio Converter

Convert audio between MP3, WAV, OGG, FLAC and M4A, with bitrate options and size comparison.

Processed locally

Drop an audio file here

MP3, WAV, OGG, FLAC, M4A, AAC · up to 500.00 MB

Choose file

Stays on your device

Only convert audio you own or have permission to use. This tool works on files from your device; it can't download from YouTube or other websites, and doesn't bypass copy protection (DRM-protected files won't convert).

Instructions

How to use it

01Drop an audio file. Video files work too: their audio is extracted.
02Choose an output format.
03Set the bitrate (for MP3, OGG and M4A), sample rate, and optionally mono.
04Press Convert, compare the results, and download.

About

What it does

Different devices and apps want different audio formats: MP3 for compatibility, M4A for Apple devices, FLAC for lossless archives, WAV for editing, OGG for some games and open-source players. This converter moves between them with control over bitrate, sample rate and channels.

It uses FFmpeg compiled to WebAssembly, running in your browser, so your recordings are never uploaded. You'll see both file sizes so you know exactly what the conversion did.

Supported formats

MP3: Universal compatibility. 192 kbps is transparent for most listening.
WAV: Uncompressed PCM: large, lossless, ideal for editing.
FLAC: Lossless and roughly half the size of WAV. Great for archiving music.
OGG (Vorbis): Efficient open format; not supported on older Apple devices.
M4A (AAC): Apple's preferred format; good quality at low bitrates.

Settings explained

Bitrate: Higher means better quality and larger files. 128 kbps suits speech and podcasts, 192 kbps most music, 320 kbps the maximum for MP3.
Sample rate: 44.1 kHz is CD quality, 48 kHz is the video standard. Keep the original unless a device requires a specific rate.
Mono: Combines stereo channels into one. Halves the size of voice recordings with no loss in clarity.

Good for

Converting voice memos (M4A) to MP3
Turning WAV recordings into smaller MP3s for sharing
Archiving music as FLAC
Making audio compatible with a car stereo, game engine or editor

Questions, answered

Can I download or convert YouTube videos?: No. This tool only converts files already on your device that you have the right to use. It doesn't download from websites, and it can't process copy-protected (DRM) media.
Will converting MP3 to FLAC or WAV improve quality?: No. Lossless formats preserve what's there, but they can't restore detail an MP3 already discarded. The file just gets bigger.
Which format is best for podcasts?: MP3 at 96–128 kbps mono is the widely used standard: small, and playable everywhere.
Are my files uploaded?: No. Conversion runs in your browser, on your device.

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