Render MIDI to MP3 or WAV, transpose notes, and change tempo online.
What Free MIDI Converter does
free-midi-converter.com is a free online toolkit built around one job — MIDI to MP3 — with a handful of closely related tools alongside it. There is no software to install, no account to create, and no watermark on anything you produce. Upload your files, let us do the work, and download the result.
The full toolset: MIDI to MP3 · MIDI to WAV · Transpose MIDI · Change MIDI Tempo.
How your files are handled
Your privacy matters. Uploaded files are processed on our servers and stored securely only as long as needed for you to download your result — they are automatically deleted after 7 days. We never sell, share, or use your files for any purpose other than performing the conversion you asked for.
Free, forever
Every tool on Free MIDI Converter is free to use. We keep the interface clean and fast so you can get in, convert, and get on with your day. Questions? See our FAQ or the help page, and explore our guides to learn more about the formats we work with.