Programming & Developer Tools
Essential utility generators and testers for software engineers including regex builders, SQL query constructors, cron helpers, and HTTP status lookups.
Free online general tools.
API Request Builder
Compose RESTful HTTP API requests (GET, POST, PUT, DELETE) with custom headers, query params, authentication tokens, and cURL export.
Cron Expression Generator
Interactive cron schedule expression builder with human-readable explanations, presets, and 5-field crontab formatting.
Environment File Generator
Generate structured .env and .env.example files with presets for databases, Redis, SMTP email, AWS S3, and API keys.
Git Command Generator
Interactive git command builder for branching, rebasing, cherry-picking, stash management, and undoing commits.
HTTP Status Lookup
Comprehensive searchable directory of all HTTP status codes (1xx, 2xx, 3xx, 4xx, 5xx) with browser behavior and debugging notes.
JSON Schema Generator
Generate Draft-07 JSON Schemas directly from raw JSON objects and arrays with field types, requirements, and validation constraints.
Regex Builder
Interactive visual regular expression constructor with pattern presets for emails, phone numbers, URLs, dates, and alphanumeric tokens.
Regex Tester
Real-time regular expression tester and pattern validator with live match highlighting, capture groups, and replacement previews.
SQL Formatter
Beautify, indent, and format messy raw SQL statements with uppercase keywords and standardized line breaks.
SQL Query Builder
Visual SQL query generator to compose SELECT, INSERT, UPDATE, and DELETE statements with WHERE, JOIN, GROUP BY, and ORDER BY clauses.