276+ 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
Paste a Dockerfile and get a plain-English, instruction-by-instruction walkthrough plus a list of concrete issues worth fixing, powered by GPT-4o mini
Read format, tick division, tempo, time signature, and per-track note counts directly from a Standard MIDI File's header and track chunks, without any playback or synthesis
Convert between a tax-free municipal bond yield and the equivalent taxable-bond yield given a marginal federal tax rate plus an optional state rate, in both directions
Generate the current TOTP code (RFC 6238) from a base32-encoded shared secret, or an HOTP code (RFC 4226) for a specific counter value, with 6-8 digits and SHA-1/SHA-256/SHA-512
Extract every Markdown-Extra-style footnote reference ([^label]) and definition ([^label]: text) from a document, then flag references with no matching definition and definitions that are never referenced