AWS IAM Least-Privilege Generator
Build a scoped IAM policy from a curated service and action catalog in your browser.
About
Select common AWS service actions, provide resource ARN templates, and add optional SourceIp or S3 prefix conditions. Everything runs locally in your browser.
Related guides
Related tools
.env Secret Safety Linter
Validate .env syntax and spot likely leaked credentials or placeholder secrets.
.htaccess Generator
Build an Apache .htaccess — HTTPS redirects, rewrites, error pages, security headers, and basic auth
2D Fluid Dynamics & Particle Physics Sandbox
A physics playground with two engines sharing one canvas. The fluid mode runs a real Eulerian Navier-Stokes solver — semi-Lagrangian advection, explicit diffusion, Jacobi pressure projection and vorticity confinement — that you paint with dye and velocity using mouse or touch. The particle mode is a damped Verlet N-body engine with gravity wells, Coulomb attractors and repulsors, spring links, wall restitution and elastic circle collisions. Particle counts adapt to the device (100k target on WebGL2 desktop, 2k-5k on CPU fallback), and every configuration exports as runnable code: a Matter.js world, a PixiJS ticker setup, or a standalone vanilla Canvas engine.
AI Function Calling Schema Generator
Generate function calling JSON schemas from TypeScript interfaces
Algorithm Arena & Data Structure Visualizer
Interactive arena for algorithms and data structures: eight sorting algorithms racing on one seeded input, six pathfinding algorithms walking generated mazes, and BST, AVL, Red-Black, B-tree, heap and trie operations replayed step by step with rotations highlighted. Every run shows the Big-O table and the phase-highlighted reference implementation in four languages, and compared values can be played as pitch (sonification) through the shared audio engine. Everything runs client-side; inputs never leave the browser.
Ansible Playbook Generator
Build an Ansible playbook — hosts, vars, and tasks with modules — as YAML