•5 min read
The Complete Guide to URL Slugs for SEO
Learn what URL slugs are, why they matter for search rankings, and best practices for creating clean, SEO-friendly URLs.
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Blog & Changelog
What's New in ToolBox
Follow our journey as we build and improve ToolBox. New tools, features, and updates.
•5 min read
CSS Units Explained: px vs rem vs em vs vw
A practical guide to CSS units — when to use px, rem, em, vw, vh, and percentages for responsive, accessible web design.
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•4 min read
How to Calculate Chmod Permissions (Easy Guide)
Learn how Unix file permissions work, what chmod numbers like 755 and 644 actually mean, and how to calculate them without memorizing octal codes.
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•5 min read
5 Best Free JSON Tools Online (2025)
A practical guide to the best free JSON tools on the web — from formatting and validating to converting JSON to CSV and beyond.
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•4 min read
10 New Tools: Pomodoro Timer, Chmod Calculator, and More
We just added 10 new tools bringing the total to 46 — including a Pomodoro Timer, Chmod Calculator, CSS Units Converter, IP Lookup, and more. Plus accessibility improvements.
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•3 min read
5 More Tools: Design Builders, Base Converter, and More
CSS Box Shadow Generator, CSS Gradient Generator, Markdown Table Generator, Number Base Converter, and Text to Binary — plus category badges and a polished 404 page.
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•3 min read
5 New Tools, Favorites, and Toast Notifications
Emoji Picker, SVG Optimizer, Crontab Generator, Tailwind to CSS, Placeholder Image Generator — plus favorites and clipboard toast notifications.
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•2 min read
Dark Mode, PWA Support, and 3 New Tools
We've added dark mode, PWA install support, and three new tools: JWT Decoder, Cron Parser, and Color Palette Generator.
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•3 min read
Introducing ToolBox: 30+ Free Online Tools
We built ToolBox to be the only toolkit you need. Every tool runs in your browser — no signups, no tracking, no limits.
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