Environment Variable Encoder/Decoder
Encode, decode, and format environment variables for secure deployment
Input Environment Variables
Enter environment variables in KEY=value format, one per line
Processing Settings
Encoding Types & Use Cases
Base64
Perfect for binary data and avoiding character encoding issues in configs.
URL Encoding
Encode special characters for URLs and query parameters.
HTML Encoding
Escape HTML special characters for web applications.
Shell Escaping
Escape shell special characters for command line safety.
Security Best Practices
✅ Do:
- • Use environment variables for secrets in production
- • Encode sensitive values before committing to version control
- • Use secret management systems (AWS Secrets Manager, etc.)
- • Rotate secrets regularly
- • Validate environment variables at application startup
❌ Don't:
- • Commit plain-text secrets to repositories
- • Log environment variables containing secrets
- • Share encoded secrets without proper access control
- • Use weak encoding for production secrets
- • Forget to sanitize environment variables in error messages
About this tool
Encode, decode, and format environment variables for secure deployment Environment Variable Encoder/Decoder runs in the browser on DevTools. There is no signup, and your input stays on this device unless the tool explicitly performs a live network lookup.
What this tool does not do
- Environment Variable Encoder/Decoder is a free in-browser utility, not a hosted API. It does not keep server-side history and is not a substitute for production verification in your own stack.
How do I use this tool?
How do I use Environment Variable Encoder/Decoder?
Open Environment Variable Encoder/Decoder, enter or paste your input, and copy the result. The page works without an account.
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