Convert WAV to MP3

One minute of CD-quality WAV takes about 10 MB, as a 128 kbps MP3 about 1 MB. For rehearsal recordings, dictation or podcasts that is plenty.

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Supports 3D/CAD (STL, OBJ, PLY, DXF, OFF, XYZ), images (PNG, JPG, WebP, SVG, HEIC, BMP, ICO), video (MP4, WebM, MOV, AVI, MKV), Embedded/ROM (HEX, BIN, SREC, B64), data & configs (JSON, CSV, TSV, XML, YAML, INI, ENV, SQL), documents & audio

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How it works: Convert WAV to MP3

  1. Drop the audio files (WAV, M4A, OGG, FLAC) in.
  2. Convert.
  3. Download the MP3s.

All features are available in the tool All-In-One File Converter.

Frequently asked questions

Can you hear the difference?

With speech practically never, with music only on good headphones in a direct comparison. If you plan to mix the recording later, keep the WAV anyway.

Similar tasks

How does this tool work?

Converts files across multiple domains (3D/CAD meshes, video, raster & vector graphics, firmware & ROMs, structured datasets, documents, audio) directly in your browser.

Drop files into the upload zone or select them via file picker. The tool automatically detects each file category and populates compatible target formats. Convert files individually or in batch with a live progress bar, then download them one by one or bundled into a single ZIP archive. All processing runs 100% locally on your machine.

Where are my data processed?

Only in your browser. Your data is not sent to any server.

The tool calculates and converts with JavaScript right on your device. Input and files are not sent to us or anyone else. You can check this yourself: load the page, disconnect from the internet, and the tool keeps working in the open tab.

No Server UploadNo sign-upRuns Offline in Tab

How it works and how to check it