Audio Converter

Convert between MP3, WAV, AAC, FLAC, OGG and M4A using FFmpeg

Tooltron, ready to help
Drop an audio file here
MP3 · WAV · AAC · FLAC · OGG · M4A — or click to browse
Six Formats Supported
Convert to MP3, WAV, AAC, or FLAC from MP3, WAV, AAC, FLAC, OGG, or M4A sources.
Real FFmpeg Engine
Runs an actual FFmpeg build via WebAssembly in your browser — not an approximation.
Full Bitrate Control
Choose 128, 192, 256, or 320 kbps for MP3 and AAC output.
Lossless Options
Convert to WAV or FLAC when zero quality loss matters more than file size.
Fully Private
Conversion happens on your own device — your audio file is never uploaded to a server.
Free, No Limits
No account, no watermark, and no limit on how many files you convert.

How to Convert an Audio File?

  1. 1.Drop an audio file — MP3, WAV, AAC, FLAC, OGG, or M4A.
  2. 2.Choose an output format — MP3, WAV, AAC, or FLAC — and a bitrate for lossy formats.
  3. 3.Click "Convert" and download the result once FFmpeg finishes processing.
FLAC
WAV
AAC
OGGMP3

Convert Between Every Popular Format

Upload MP3, WAV, AAC, FLAC, OGG, or M4A, and convert it into MP3, WAV, AAC, or FLAC — one tool that covers the formats you'll actually run into.

128kbps
192kbps
256kbps
320kbps

Dial In the Exact Bitrate

For MP3 and AAC output, choose 128, 192, 256, or 320 kbps to balance file size against sound quality — or skip the question entirely with a lossless WAV or FLAC target.

Why Our Audio Converter Stands Out: Real FFmpeg, Full Format Support

Six Formats, One Tool
Upload MP3, WAV, AAC, FLAC, OGG, or M4A and convert out to MP3, WAV, AAC, or FLAC — no need to hunt for a converter that happens to support your specific pair of formats.
Real FFmpeg, Not a Shortcut
Tooltron loads an actual FFmpeg build compiled to WebAssembly and runs it locally, the same engine behind countless professional audio tools. You get real codec-accurate output, not a rough browser approximation.
Bitrate in Your Hands
For MP3 and AAC output, pick anywhere from 128 to 320 kbps depending on whether file size or sound quality matters more. Lossless targets like WAV and FLAC skip the bitrate question entirely.
Nothing Leaves Your Device
Every conversion runs entirely in your browser using WebAssembly — your audio file is read, processed, and converted without ever being uploaded anywhere. No account, no server, no waiting on an upload.