I built 121 free online file tools as a side project - here is what I learned

After months of nights and weekends, I launched Filuni - a free online toolkit with 121 tools for PDF, image, video, audio, and document processing. No signup, no upload limits, no watermarks.

Why I built it

Every time I needed to merge a PDF or compress an image, I would land on a tool that either:

limited me to 2 free uses per day,

required an account for a 10-second task,