Tools
Free tools I've built
Everything here is free and runs in your browser. Built to scratch my own itches, mostly around AI search visibility and developer productivity.
citability.dev
AI Visibility Assessment. Answer 15 questions to find out if ChatGPT, Perplexity, and Claude can find, recommend, and cite your website. Free, instant results.
Review Reply Copilot
Generate calm, human-sounding replies for Google, Yelp, and Airbnb reviews in seconds. Free, no login required.
AEO Audit Tool
Quick AEO check built into chudi.dev. Tests your site against answer engine readiness criteria.
ADHD Scorecard
A diagnostic scorecard for neurodivergent developers. Find which ADHD traits are working for you and which are costing you time.
Claude Code Assessment
Assess your Claude Code setup against best practices, hooks, memory, CLAUDE.md, and workflow patterns.
Claude Token Counter & Cost Calculator
Estimate tokens in a prompt and calculate exact costs across Claude Fable 5, Opus 4.8, Sonnet 5, Haiku 4.5, GPT, and Gemini.
Context-Switch Cost Calculator
Calculate the real cost of interruptions. See how much productivity and money you lose to refocusing each day, week, and year.
Kelly Criterion Calculator
Find the optimal bet size using the Kelly Criterion. Interactive calculator with growth rate charts, half/quarter Kelly, and edge analysis.
Signal Threshold Slider
Explore how changing a signal threshold affects trade frequency vs win rate. Interactive dual-axis visualization for quant traders.