Articles & Guides
Practical how-tos, tips, and tutorials to help you get more from our tools.
74 articles · Page 4 of 8
CSS Developer Tools: Generate Gradients, Shadows, Convert Units, and Check Accessibility
A hands-on guide to browser-based CSS tools — build gradients and box shadows visually, convert between px/rem/em, check WCAG color contrast, generate color palettes, and convert CSS to Tailwind classes.
Financial Calculators: Plan Loans, Savings, Investments, and Debt Payoff in Your Browser
A practical guide to free browser-based financial calculators — loan amortization, savings goals, compound interest, debt snowball, salary take-home pay, and more — no spreadsheet required.
How to Convert HEIC to JPG for Free — iPhone Photos on Any Device
Convert HEIC and HEIF photos from iPhone to JPG instantly. No software, no sign-up, no upload to server. Works in your browser on Windows, Mac, and Android.
JSON & Data Tools: Format, Validate, Convert, and Query JSON Without Code
A complete guide to browser-based JSON tools — format and validate JSON, generate TypeScript interfaces, convert to CSV or SQL, build Zod schemas, compare JSON diffs, and run JSONPath queries.
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.