Developer and Text Tools
How to Minify CSS and Why It Speeds Up Your Website
Learn what CSS minification does, how much it saves, what can go wrong and how to combine it with compression and caching for faster pages.
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Developer and Text Tools
Developers and writers share a need for quick text utilities. These guides explain how to format and validate JSON, generate strong passwords, compare two versions of a text and convert Unix timestamps, with the reasoning behind each so that you can use the result with confidence. The tools run in your browser and your text is not uploaded.
14 guides
Developer and Text Tools
How to Convert YAML to JSON and JSON to YAML (With Examples)
Understand the differences between YAML and JSON, convert data both ways, avoid common indentation errors and know what is lost in conversion.
Developer and Text Tools
How to Convert Binary, Decimal, Octal and Hexadecimal
Learn how number bases work and how to convert between binary, octal, decimal and hexadecimal by hand, with examples such as 255 and 2026.
Developer and Text Tools
How to Check Keyword Density and Word Frequency
Find your most repeated words and phrases, learn what keyword density means, and why natural writing beats chasing a fixed percentage for SEO.
Developer and Text Tools
How to Create SEO-Friendly URL Slugs (Rules and Examples)
Learn the best practices for URL slugs: lower case, hyphens, short and descriptive, with before-and-after examples you can copy.
Developer and Text Tools
How to Create a robots.txt File (With Examples)
Learn what robots.txt does, the correct syntax, safe examples for common sites, and the mistakes that can block your whole website.
Developer and Text Tools
How to Write Meta Tags for SEO: Title and Description
Learn what title, description, canonical and Open Graph tags do, the right lengths, and how to write them so more people click.
Developer and Text Tools
HTTP Status Codes Explained: 200, 301, 404, 500 and More
A clear guide to the HTTP status codes you meet most often, what each one means, and how they affect websites, links and SEO.
Developer and Text Tools
Cron Expression Cheat Sheet with Examples
Learn the five fields of a cron expression, the special characters and ready-made examples for common schedules and mistakes to avoid.