A small file converter went from idea to live tool in hours
A free was built to solve the annoying job of changing many WAV files into MP3 files. Cursor helped with development, and Vercel was used to put it online on a the same day.
The tool lets people upload and download files in bulk. The runs inside the user’s browser, so the files do not need to be sent to a server for processing.
The main point is that a small problem can now become a public working tool in only a few hours. The is also looking for other simple utility tools that can attract real use.
Key points
- The tool converts WAV files to MP3 files in the browser.
- It was built with Cursor and launched with Vercel on a in one day.
- It supports bulk upload and bulk download.
- Files are processed locally in the browser instead of being sent to a server.
- It shows how fast a small utility idea can become a live product test.