Free tool · runs in your browser

Audio Converter

Convert audio between MP3, WAV, M4A/AAC, OGG, and FLAC entirely in your browser. Lossy formats get a bitrate selector, lossless formats get a sample-rate selector, and your file never touches a server.

How to use this tool

  1. 01

    Upload your audio

    Drop in or choose any format FFmpeg supports — it's decoded locally and never uploaded.

  2. 02

    Pick output format

    Choose MP3, WAV, M4A/AAC, OGG, or FLAC to match your downstream tool or platform.

  3. 03

    Set bitrate or sample rate

    Bitrate for lossy formats, sample rate for lossless — higher means better quality and a bigger file.

  4. 04

    Convert and download

    FFmpeg re-encodes locally; this is CPU-bound, so larger files take longer.

Why this matters

Every destination wants a different audio format — podcast hosts expect MP3, video editors want 48 kHz WAV, modern web players prefer AAC or OGG, and archives demand lossless FLAC. Juggling those by hand usually means a desktop encoder with a confusing matrix of codecs and containers, or an online converter that adds upload time, queues, signup walls, and questions about who is listening to your unreleased audio.

This tool runs FFmpeg directly in your browser, so the file never leaves your device and there are no watermarks or upload caps — it picks the correct codec per container automatically and exposes only the one knob that matters for the format you chose. If you need to pull the audio out of a video first, run it through the Video to MP3 converter and convert the result here.

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FAQ

Use a lossless format (FLAC or WAV) for archival masters, multitrack stems, or anything you'll edit or re-encode later — they preserve every sample exactly, at the cost of much larger files. Use a lossy format (MP3, AAC, OGG) for final delivery to listeners, where a fraction of the size for near-transparent quality is the right trade. The rule of thumb: lossless while you're still working on the audio, lossy once it's finished and going out.

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