Articles & Guides
Practical how-tos, tips, and tutorials to help you get more from our tools.
92 articles · Page 6 of 10
Free JSON Formatter & Validator Online — Beautify and Fix JSON Instantly
Format, validate, and minify JSON data instantly in your browser. Free JSON formatter with syntax highlighting, error detection, and no sign-up required.
Keyboard & Mouse Testing: How to Check Every Key and Button Without Software
A complete guide to testing your keyboard and mouse directly in the browser — detect stuck keys, test all mouse buttons, measure click accuracy, and check scroll wheel behavior instantly.
How to Merge PDF Files for Free — No Sign-Up, No Software
Learn how to merge multiple PDF files into one in seconds. No account, no watermark, no file size limit. Works entirely in your browser.
Password Security in the Browser: Generate, Encrypt, Hash, and Test — No Server Needed
A practical guide to browser-based password and encryption tools — generate strong passwords, encrypt text with AES-256, hash passwords with PBKDF2, and check your password strength instantly.
Free QR Code Generator — Create QR Codes Instantly, No Sign-Up
Generate QR codes for URLs, text, WiFi, email, and more. Free, no account required, download as PNG or SVG. Works entirely in your browser.
How to Remove Image Background for Free — No Sign-Up Required
Remove the background from any photo instantly using AI. No Photoshop, no account, no watermark. Works in your browser on any device.
SVG Guide for Developers: Scalable Graphics That Work Everywhere
Learn how SVG works, how to optimize SVG files for the web, inline vs external usage patterns, and how to animate and manipulate SVGs with CSS and JavaScript.
Git Workflow Guide: Branching, Merging, and Team Collaboration
Master Git branching strategies, commit best practices, rebasing vs. merging, and the workflows used by professional engineering teams.
Docker for Developers: Containers, Compose, and Real-World Workflows
A practical guide to Docker concepts, Dockerfile best practices, and using Docker Compose to run multi-service development environments.
JWT Tokens Explained: Structure, Security, and Common Mistakes
Understand how JSON Web Tokens work, what's inside them, and the security pitfalls that trip up developers in production.