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Fun & games

Dice, random pickers, puzzles and party games with fair, transparent rules. · 12 tools

  • Chore Roulette

    Spin a fair chore rota: random but balanced by effort, with a “not again” rule.

    JSON API · MCP

  • Elo/Glicko Rating Lab

    Rate players from game results with Elo, Glicko-1 and Glicko-2; history chart and win odds.

    JSON API · MCP

  • Emoji Cipher Playground

    Turn secret notes into emoji and back: substitution, Caesar shift and base-emoji.

    JSON API · MCP

  • Equation Art Studio

    Turn math into art: parametric, polar, Lissajous, rose and spirograph curves.

    JSON API · MCP

  • Keyboard Heatmap Visualizer

    Paste any text: see which keys and fingers do the work on QWERTY, Dvorak, Colemak & co.

    JSON API · MCP

  • Movie & Series Marathon Planner

    Plan a binge: when each movie or episode starts and ends, total days, and a calendar.

    JSON API · MCP

  • Movie Night Consensus Picker

    Everyone ranks the films, vetoes count: Borda, approval, runoff and Condorcet decide.

    JSON API · MCP

  • Padel & Pickleball Scheduler

    Fair Americano or Mexicano doubles rounds with balanced sit-outs, scores and standings.

    JSON API · MCP

  • Password Entropy Race

    Race 2–6 passwords or passphrases: entropy, pattern penalties and crack times.

    JSON API · MCP

  • Regex Golf Arena

    Match the left list, avoid the right list — in as few characters as possible.

    JSON API · MCP

  • Sports What-If Simulator

    Simulate a match or a small league with a Poisson goal model — and replay “what if”.

    JSON API · MCP

  • Tournament Bracket Maker

    Single or double elimination or round robin: seeded brackets, byes, results and downloads.

    JSON API · MCP

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