Audio Converter
Convert audio between MP3, WAV, M4A, OGG and FLAC in your browser.
Audio files
Convert between MP3, WAV, M4A, OGG and FLAC
Drop a file here
Drop audio or video files — decoding and encoding run in your browser with ffmpeg.wasm
Converted audio
Play each result, then download
Converted files appear here with a player and a download button.
About the Audio Converter
Drop one file or a whole batch and convert them to MP3, M4A/AAC, OGG Vorbis, WAV or FLAC with ffmpeg.wasm running locally. Choose the bitrate, sample rate and channel layout, optionally normalise loudness to broadcast level, then preview each result and download it. Video files work too — the audio track is extracted automatically.
Examples
WAV to MP3
voiceover.wav · 96 MBOutput
voiceover.mp3 · 192 kbps · 8 MBBatch to M4A
12 FLAC filesOutput
12 × .m4a · 256 kbps · normalisedKeyboard shortcuts
- Copy the main outputCtrl / ⌘ + Shift + C
- Download the resultCtrl / ⌘ + S
- Share this toolCtrl / ⌘ + Shift + S
- Reset the inputsAlt + R
- Open the tool search paletteCtrl / ⌘ + K
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Turn any audio or video file into a waveform image you can download as PNG or WebP.
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M3U8 / HLS Downloader
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Download an .m3u8 HLS stream and save it as a single MP4 file.
Online Video Player (M3U8 / HLS)
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Play M3U8 (HLS), MP4, WebM and local video files right in the browser.
Frequently asked questions
Read more
- Converting audio in the browser: bitrates, sample rates and when lossless matters
MP3, M4A, OGG, WAV and FLAC each have a job. Here is how to pick one, what bitrate to use, and how ffmpeg.wasm converts files without an upload.
- Preview before you export: why audio tools need a play button
Scrubbing, in/out handles and instant playback turn guesswork into precision when you trim or join audio in the browser.
- MP3, WAV, FLAC, M4A and OGG: which audio format to use when
A practical guide to lossy vs lossless, bit depth, sample rate and why browser tools tend to hand you a WAV at the end.
- How to trim and join audio files without installing anything
Cut a clip, fade it in, join several tracks with a crossfade and export a WAV — using nothing but the Web Audio API in your browser.
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Version 1.0.0 · Updated 2026-09-02 · Runs entirely in your browser