Does it work on mobile?

Heavy conversions may be slow or run out of memory on phones. We recommend desktop Chrome or Edge for the best audio converter results.

How does this relate to Van Gogh Studio?

Use this audio converter to normalize or convert clips, then bring them into our AI video generator for visuals and storytelling.

Free audio converter · In-browser

Audio Converter

This free audio converter runs entirely in your browser — no upload. Convert MP3, WAV, AAC, FLAC, OGG, M4A, Opus, and more, or wrap audio in MP4 / WebM with a black frame or your own cover image. Your files never leave your device; available export formats depend on your browser.

Private & localWaveform previewAdvanced bitrate & sample rateAudio → video (MP4 / WebM)

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Audio Converter — convert in your browser

Drag and drop a file into the audio converter, or click to choose. Everything stays on your device.

Or drag and drop a file here. No upload needed — 100% secure.

Detecting supported export formats…

No file? Try a sample in another format

Click to load instantly — same ~8s demo vocal in MP3, WAV, FLAC, and more

Recommended next steps based on what you're working on — pick up where this tool leaves off.

Browse all free tools

How this audio converter works

Add a file

Drop an audio or video file (up to 500MB) into the audio converter. We validate the extension before loading — MP3, WAV, FLAC, AAC, OGG, M4A, Opus, MP4, MOV, and WebM are supported.

Choose format & options

Pick an output format in the audio converter, open advanced settings if you need sample rate, channels, or bitrate, and for MP4/WebM choose black or a custom cover.

Convert & download

Click Convert and wait for the local progress bar. Then download your converted file or start another audio converter job.

Why use this free audio converter?

Nothing leaves your browser

The audio converter processes files in your tab using WebCodecs. We do not receive your audio or video — ideal for unreleased tracks, client dailies, and private voice recordings.

Broad format support

Import MP3, WAV, AAC, FLAC, OGG, M4A, M4R, WMA, Opus, AIFF, AMR, MP4, MOV, or WebM. Export popular audio formats or a still-image MP4 / WebM for social workflows — one audio converter covers both audio-only and audio-to-video exports.

Fine-grained control

Optional sample rate, mono/stereo, and bitrate for lossy codecs — ideal for podcasts, voiceovers, and smaller files when you convert audio with this browser tool.

Audio to video

Export a 1280×720 clip with a black background or your own JPEG/PNG/WebP cover — handy when a platform expects video files instead of plain audio.

Audio converter FAQ

Do you upload my files?+

No. This audio converter runs entirely in your tab. Use a recent desktop browser (Chrome or Edge recommended) for the widest codec support.

Why is there a 500MB limit?+

Very large files can exhaust browser memory when the audio converter decodes and re-encodes locally. For huge archives, desktop FFmpeg is a better fit.

Can I convert WMA or AMR?+

You can try — support depends on the codecs shipped in the WebAssembly build. If a format fails in the audio converter, re-encode with desktop software or try another input container.

What is “audio to video”?+

The audio converter muxes your audio with a single still frame (black or your image) into MP4 or WebM so you can upload to platforms that prefer video files.