AppCrib
Free browser tools & calculators for quick, interactive answers — no sign-ups.
Free - Free — all tools available in the browser with no account or sign-up required.
About AppCrib
A curated collection of purpose-built browser tools and calculators that solve one small problem at a time. Each tool asks the right questions, recomputes live as you adjust inputs, and gives copyable outputs. Includes developer utilities (jq playground, cron linter, base converter), design helpers (contrast checker), DIY calculators (paint coverage, overcut), finance tools (savings growth) and more. 51+ tools, free in-browser, no account required, with new tools added regularly.
Key Features
- Collection of focused, single-purpose browser tools and calculators
- Live recomputation as inputs are adjusted
- No sign-ups or accounts — instantly usable
- Copyable/exportable outputs for practical use
- Regularly updated with new tools (51+ tools available)
Who is this for?
Developers, designers, DIYers and anyone who needs quick, focused calculators or utilities in the browser.
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FreeFree — all tools available in the browser with no account or sign-up required.
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