Tools & Open Source

Sentinel is a diagnostics tool I built for Windows laptops that freeze or slow down without warning. Most "PC optimizer" software just invents problems, thousands of fake issues, to sell you an upgrade. Sentinel does the opposite: it records real system behavior continuously in the background, using under 15 MB of RAM and under 1% CPU, so that when something actually goes wrong, you get a plain-language explanation instead of a guess

Santo Media Converter is a modern, browser-based media conversion tool built with Next.js. It allows users to convert video, audio, and images instantly in their browser without ever uploading files to a server. By using WebAssembly (FFmpeg) to process files locally on the user's device, it guarantees 100% data privacy, delivers zero-wait-time conversions, and costs practically nothing to host since it requires no backend processing servers.

Santo PDF is a local-first PDF manipulation tool that lets you merge, split, compress, and organize your documents entirely in your browser. Built with a focus on privacy and speed, it ensures your sensitive files are never uploaded to a server while offering a seamless, no-ads, and no-login experience.