Everyday work toolkit

The browser toolbox

Do the maths, get things done, slack off a bit. 20 free tools that just open and work — no sign-up, no uploads.

20 handy tools10 mini games10 in-depth guides6 trending listsFree · No sign-up

For work

Payroll, paperwork, done in the browser

Minitool

Income tax, mortgages, pensions, income percentile, ID photos, PDF, image compression, dates and working days — 20 tools that run entirely in your browser. Nothing is uploaded.

Income taxMortgageID photosPDF & images

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Break time

When the work is done, or you need a break from it

Break Room

Ten classics — Tetris, Snake, Minesweeper, 2048, Sudoku, Gomoku and more. No network, no account; high scores stay on your device, so a quick break leaves no trace.

TetrisSnakeMinesweeperSudokuGomoku

Play now →

AI & productivity

For people calling APIs and choosing models

LLM Leaderboard

A six-dimension roundup of the global Top 100 LLMs: Arena Elo blind-battle score, coding, vision, intelligence index, MMLU-Pro knowledge and ARC-AGI reasoning. Vendor-colored bars show strengths at a glance, with sorting and domestic/open-source filters.

Arena EloIntelligence Index AAIIReasoning ARC-AGIDomestic / open-source filters

See the strongest models →

AI API Relay Prices

Model discount rates, price per million tokens, latency and uptime for 60 relay providers including 4SAPI, 147API, KoalaAPI and OpenRouter.

For developersRatesLatencyUptime

Compare before you pay →