Blog
Practical guides for developers — with free tools to try inline.
Base64 vs URL Encoding: Which to Use When
Compare Base64, percent-encoding, and URL-safe Base64 for APIs and the web.
Unix Timestamp Guide: Seconds, Milliseconds, and Timezones
Convert epoch timestamps for logs, JWTs, and APIs—with examples and a free converter.
URL Encoding Explained: When to Use encodeURI vs encodeURIComponent
Learn percent-encoding, plus signs, and Unicode in URLs—with a free encoder tool.
Word Count for SEO and Content: What Actually Matters
How many words you need for blog posts, meta descriptions, and social snippets—with a free word counter.
Remote Team Timezone Best Practices
How distributed teams schedule meetings and avoid timezone mistakes—with free converter tools.
URL Extractor Guide
Find and copy all http/https links from any text.
Tracking Parameter Stripper Guide
Remove UTM, fbclid, gclid, and other tracking params from URLs.
String Splitter Guide
Split text by comma, tab, newline, or custom delimiter.
Remove Empty Lines Guide
Delete blank and whitespace-only lines from text instantly.
JWT Authentication: A Practical Guide for Developers
Understand JWT structure, claims, expiration, and debugging—with examples and a free decoder tool.
JSON to CSV Converter Guide
Convert JSON arrays of objects to CSV with headers—free in your browser.
Chinese Simplified ↔ Traditional Converter Guide
Convert between Simplified and Traditional Chinese with OpenCC in your browser.
XML Formatter Guide: Pretty-Print and Validate XML
Format, minify, and validate XML online—free browser tool with indentation options and error messages.
UUID Generator Guide: Create v4 UUIDs Online
Generate UUID v4 identifiers instantly in your browser—single or bulk, with copy support and no signup.
URL Query String Parser: Decode and Edit Parameters
Parse URL query parameters, edit key-value pairs, and rebuild URLs—free online tool for API debugging.
URL Expander Guide: Unshorten Links Safely
Expand short URLs to their final destination—free browser tool for debugging redirects and verifying link targets.
Regex Cheat Sheet: Essential Patterns for Developers
A practical regex cheat sheet with copy-paste patterns for email, URLs, dates, and more—plus a free tester.
Identifier Case Converter: camelCase, snake_case, kebab-case
Convert variable names between camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE—instantly online.
HTML Formatter Guide: Pretty-Print and Validate HTML
Format, minify, and validate HTML online—free browser tool with indentation options for snippets and templates.
Color Picker Guide: Convert HEX, RGB, and HSL
Pick colors and convert between HEX, RGB, and HSL online—free CSS color tool that runs in your browser.
How to Format JSON: Complete Guide with Examples
Learn how to format, validate, and pretty-print JSON for debugging and APIs—with examples and a free online tool.