A boring stack on purpose.
Plain HTML, CSS and ES modules. No runtime framework, database, authentication or server-side inference.
Core rule
A utility belongs in the free suite only when its core function can run deterministically in the browser without a paid API or per-request compute bill.
How analysis works
The shared engine uses Unicode tokenization, boundary-aware pattern matching, parsers, checksums, edit distance, entropy heuristics and specialized rule packs. Diagnostics report what the engine can and cannot infer instead of pretending every AI task has one universal formula.
Deployment
The project is static and compatible with Cloudflare Pages. Security headers are supplied in _headers; a top-level 404.html keeps unknown routes from falling back to the Home page.
Scope
These tools are deterministic utilities, not security guarantees, legal advice or substitutes for provider-specific documentation. Rules that are incomplete are disclosed in the relevant tool.