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Audio Converter

Convert audio between MP3, WAV and WebM/Opus with your own sample rate, channel and bitrate settings — locally.

🔒 Runs in your browser — files never leave your deviceFree · No sign-up
Drop an audio or video file here, or click to choose MP3, WAV, M4A, AAC, OGG, FLAC, WebM, MP4 — decoded by your browser, never uploaded.

How to convert an audio file

  1. Drop an MP3, M4A, WAV, OGG, FLAC or video file onto the box — decoding happens in your browser.
  2. Pick the target format, then set the sample rate, channel count and bitrate if you need something specific.
  3. Click Convert, check the preview and download the new file.

FAQ

Which format should I choose?

MP3 for maximum compatibility — car stereos, old phones, voice recorders. WAV when another program needs raw, lossless audio. WebM/Opus when you want the smallest file at a given quality, for example for a website or a chat app.

Why can I not convert to M4A or FLAC?

Browsers ship encoders only for MP3 (through the LAME library used here), Opus and raw PCM. There is no built-in AAC or FLAC encoder available to a web page, so this tool does not pretend to offer them.

Will lowering the sample rate save space?

Yes, and it also lowers the highest frequency the file can carry. 44100 Hz is CD quality; 16000 Hz is plenty for speech and roughly a third of the size; 8000 Hz sounds like a phone call. For music, leave it at the source rate.

Video to GIFHOT Turn any part of an MP4, WebM or MOV video into an animated GIF — pick the clip, frame rate and width right in your browser. Video Trimmer Cut a video down to the part you want and optionally crop the frame — re-encoded in your browser, nothing uploaded. Video Screenshot Grab full-resolution stills from any video — one frame at a time, or a whole contact sheet every few seconds. Extract Audio from Video Pull the soundtrack out of an MP4, MOV or WebM file and save it as WAV or MP3, entirely in your browser. Audio Trimmer Cut an MP3, WAV or M4A down to the part you need, add fade in and fade out, and export WAV or MP3. Screen Recorder Record your screen, a window or a browser tab with system and microphone sound, then download the WebM file. Camera Photo & Video Take photos or record video with your webcam — countdown timer, mirror toggle and instant download, nothing uploaded. Voice Recorder Record your voice in the browser with a live level meter, pause and resume, then download WebM or WAV.

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