Click Speed Test
Click anywhere to measure your clicks per second. Tracks live, peak, burst (last 10), and average CPS with a rolling sparkline.
Olympic Peninsula Trip — Hwy 101 Loop
A family road-trip itinerary along WA Highway 101 around the Olympic Peninsula, with an interactive map and day-by-day plans.
iCal Viewer
Paste an iCal feed URL or raw iCal data to browse and search calendar events.
JSON Lint & Diff
Paste JSON to auto-format and validate. Optionally paste a second JSON to see a structural diff.
AWS Lambda + SnapStart Pricing Calculator
Estimate AWS Lambda costs with and without SnapStart. Configure requests, memory, duration, free tier, and SnapStart cache/restore pricing.
Monty Hall Simulator
Simulate the Monty Hall problem with configurable doors, trials, and strategies. Compare keep, switch, and mixed strategies against theoretical win rates.
Music Note Flashcards
Practice identifying notes on the treble clef staff. A random note appears and you guess its name — tracks streak and score.