306+ tools · 15 categories · REST API live · CLI coming soon
Run any tool from your terminal via npx. No install required.
Image processing, AI-assisted regex, DNS propagation checker, and more in the pipeline.
5 recently added tools
Build a regex character class (a [...] bracket expression) from checkboxes for letters, digits, and whitespace plus custom ranges and literal characters, with optional negation
Calculate a flat or tiered (marginal) sales commission from a sale amount, plus an optional base salary added to the total payout
Scan text for likely dash misuse: a hyphen surrounded by spaces where an em dash is probably intended, a double hyphen left unconverted, and inconsistent spacing around em dashes across the same document
Simulate paying only the minimum payment on a revolving credit card balance, given a minimum-payment formula (a percent of balance, a fixed dollar floor, or both), and see how many months and how much interest that actually takes
Lint a Dockerfile for unpinned base images, missing WORKDIR/USER, and misused ADD