.env Generator
Generate .env file from key-value form inputs.
Developer Tools
Format, encode, decode, and validate data with JSON, Base64, URL, HTML, regex, UUID, hash, and color tools.
Our free online developer tools streamline common coding tasks. Format and validate JSON with syntax highlighting, encode and decode Base64 strings, handle URL percent-encoding, convert HTML entities, test regular expressions with real-time match highlighting, generate UUID v4 identifiers, create MD5 and SHA-256 hashes, and convert color codes between HEX, RGB, and HSL. All tools run entirely in your browser using secure Web Crypto APIs where applicable. Essential utilities for web developers, backend engineers, QA testers, and DevOps professionals working with data encoding and validation daily.
Available Tools
.env Validator
Validate .env file syntax (KEY=VALUE format).
.gitignore Generator
Generate .gitignore for common frameworks.
.htaccess Redirect Generator
Generate Apache .htaccess redirect rules.
Accessibility Audit Checklist
Interactive WCAG 2.1 accessibility audit checklist.
Ada Record Generator
Generate Ada record type from JSON.
AJV Schema Generator
Generate AJV-compatible JSON Schema from JSON data.
Alpine.js Snippet Generator
Generate Alpine.js component snippets.
Alt Text Generator
Generate accessible alt text suggestions for images.
Ansible Playbook Generator
Generate Ansible playbook YAML from form inputs.
Ansible Role Generator
Generate Ansible role directory structure as YAML.
Apache .htaccess Generator
Generate Apache .htaccess config.
Apache VHost Generator
Generate Apache virtual host configuration.
API Endpoint Tester
Test API endpoints with configurable methods and headers.
API Response Formatter
Format and pretty-print API responses (JSON/XML).
ArgoCD Application Generator
Generate ArgoCD Application manifest YAML.
ARIA Role Reference
Browse WAI-ARIA roles with properties and examples.
Aria2 Command Generator
Generate aria2 download commands with options.
ASCII Table Reference
ASCII character table reference.
Astro Component Generator
Generate Astro component boilerplate code.
Atbash Cipher
Encrypt/decrypt with Atbash cipher (reverse alphabet).
AWS IAM Policy Generator
Generate AWS IAM policy JSON from form inputs.
Base32 Encoder/Decoder
Encode and decode Base32 strings using RFC 4648 standard.
Base58 Encoder Decoder
Encode/decode Base58 (Bitcoin format).
Base64 Encoder and Decoder
Encode text to Base64 or decode Base64 strings back to plain text.
Bazel BUILD Generator
Generate Bazel BUILD file rules.
Bcrypt Hash Generator
Generate bcrypt password hashes with configurable rounds.
Binary Calculator
Perform binary arithmetic (AND, OR, XOR, NOT, shift).
Binary to Decimal Converter
Convert between binary, octal, decimal, and hex number systems.
Boundary Config Generator
Generate HashiCorp Boundary configuration.
Browser Info Detector
Detect browser info, platform, timezone, and connection details.
Bruno Collection Generator
Generate Bruno API client collection.
Buck Build Generator
Generate Buck2 build file (TARGETS).
C# Class Generator
Generate C# class from JSON.
Cabal File Generator
Generate Haskell Cabal .cabal file.
Caddy Config Generator
Generate Caddyfile configuration for web servers.
Caesar Cipher
Encrypt/decrypt text with Caesar cipher shift.
Calico Network Policy Generator
Generate Calico network policy YAML.
Cargo.toml Generator
Generate Rust Cargo.toml from project settings.
Certbot Command Generator
Generate Certbot/Let's Encrypt SSL commands.
Changelog Generator
Generate CHANGELOG.md entries from version/date/changes.
Chef Recipe Generator
Generate Chef recipe from resource definitions.
Chmod Calculator
Calculate Unix chmod permissions in octal and symbolic notation.
Chmod Permission Calculator
Calculate Unix file permissions with interactive checkboxes.
CI/CD Pipeline Visualizer
Visualize CI/CD pipeline stages as a flowchart.
CIDR Notation Converter
Convert between CIDR notation and subnet masks.
Cilium Network Policy Generator
Generate Cilium network policy YAML.
Class Validator Generator
Generate class-validator decorators from JSON.
Clojure Map Generator
Generate Clojure map/record from JSON input.
CloudFormation Template Generator
Generate AWS CloudFormation template snippets for common resources.