Support Lumi

Hi, I’m Lumi.

I build free and affordable web tools that help people study, create, and work more easily.

I’m currently building ToolZip, a collection of free browser-based tools for PDFs, images, HWP files, coding, QR codes, and more. I also create a free TOEFL question practice website with very low-cost AI-powered automatic writing grading, so students can practice more often without expensive tutoring or subscriptions.

If my tools save you time, help with your study, or make your work easier, you can support me with a coffee. Your support helps me keep these tools free, improve the servers and features, and build more useful products for everyone.

Thank you for supporting independent tools.