Developer Tools

9

Essential developer utilities: JSON formatter and diff, regex tester, Git cheatsheet, cron expression tools, chmod calculator, and code comparison.

JSON formatter

Format, validate, and minify JSON data

JSON diff

Compare two JSON objects and highlight differences

Git cheatsheet

Quick reference for Git commands and workflows

Crontab generator

Generate and explain cron expressions

Regex tester

Test regular expressions with real-time match highlighting, group capture display, and flag toggles

Chmod calculator

Calculate Unix file permissions between octal notation and symbolic rwx format

Cron explainer

Paste a cron expression and get a human-readable description plus next 5 run times

Luhn / card validator

Validate credit card numbers with the Luhn algorithm and detect card type

Diff viewer

Side-by-side text diff with line-level highlighting powered by LCS algorithm