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Developer tutorials for JSON, regex, cron, CSS, SEO, DevOps, PDF workflows, and AI-assisted coding — from the CodeKitLab team.
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YAML to JSON for AI-Native Developer Workflows in 2026
See how YAML to JSON fits into AI-native development loops, safer browser workflows, and faster team handoffs in 2026.
May 18, 2026
2 min read
math
Unit Converter — Free Online Tool
Convert length, weight, area, volume, speed, time
text
Text Repeater — Free Online Tool
Repeat text N times with separator
math
Byte Converter — Free Online Tool
Convert between bytes, KB, MB, GB, TB
text
Word Counter — Free Online Tool
Count words, chars, sentences, reading time
text
Case Converter — Free Online Tool
Convert text between camelCase, snake_case etc
reference
HTTP Status Codes — Free Online Tool
Complete reference for all HTTP status codes
tools
Developer Productivity: 20 Tools You Should Be Using Daily
A curated list of 20 developer tools that will streamline your daily workflow.
analyze
CSV Viewer — Free Online Tool
View CSV as sortable, searchable table
Code Kit Lab
Feb 28, 2026
analyze
URL Parser — Free Online Tool
Parse URL into protocol, hostname, path, query
Code Kit Lab
Feb 27, 2026
analyze
Color Contrast Checker — Free Online Tool
Check WCAG 2.1 contrast ratios
Code Kit Lab
Feb 26, 2026
analyze
Docker Compose Validator — Free Online Tool
Validate docker-compose.yml files
Code Kit Lab
Feb 26, 2026
analyze
XPath Tester — Free Online Tool
Test XPath expressions against XML
Code Kit Lab
Feb 25, 2026
analyze
JSON Path Evaluator — Free Online Tool
Evaluate JSONPath expressions against JSON
Code Kit Lab
Feb 24, 2026
analyze
Crontab Validator — Free Online Tool
Validate cron expressions and next run times
Code Kit Lab
Feb 23, 2026
analyze
.env Validator — Free Online Tool
Validate .env files detect syntax errors
Code Kit Lab
Feb 23, 2026