Lu Shen
Small Business Owner · AI Tools Enthusiast · Indie Developer
I build free online tools at ToolMixr and write honest AI tool reviews at GenAIPick. Before this, I was that person with 15 browser tabs open, each running a different "free" tool that required an account, uploaded my data, or hit me with a paywall. So I built what I wanted: tools that just work, right in your browser.
What I Build
ToolMixr
26 free online tools — mortgage calculator, JSON formatter, Markdown editor, CSS gradient generator, and more. All client-side, no data collection.
View tools →GenAIPick
Honest, hands-on AI tool reviews and tutorials. 29+ in-depth articles. No sponsorships, no fluff — just real analysis.
View reviews →The Full Story
I started building web tools because I got tired of using free online tools that collected my data, showed too many ads, or asked me to sign up just to format some JSON.
ToolMixr was the result — every tool runs entirely in your browser. Your data never leaves your device. Your passwords, JSON, images, and financial data stay private.
Then I started GenAIPick because I noticed most AI tool reviews were either sponsored, outdated, or written by someone who clearly had not actually tested the product. I pay for my own subscriptions and write honest reviews of the tools I genuinely use.
When I am not building tools or testing AI, I am probably reading about local AI models, tweaking my home server, or playing with the latest open source AI releases.