Convert large, lossless AIFF files into the compact and universally supported MP3 format. By default the conversion runs locally in your browser, with no upload.
In “Local” mode your file never leaves your device. No uploads, no server – ideal for sensitive recordings.
Pick “Local” for full privacy or “Server” for very large files and every format.
No sign-up, no queue, no watermark. Choose a file, convert, download.
AIFF is lossless and MP3 is lossy, so the file shrinks and some quality is lost in compression. At a high bitrate that loss is inaudible to most listeners.
AIFF files are very large and not supported everywhere. MP3 saves a huge amount of space and plays on virtually any device or app.
Yes. By default the conversion runs entirely in your browser. An optional server mode is there only for very large files.
For music, 256 to 320 kbps offers an excellent balance of quality and size. Higher values only enlarge the file with no audible benefit.