Blog
Tutorials, guides, and tips for free browser-based tools.
BMI Calculator: What Your Score Means
Calculate BMI with ideal weight, BMI Prime, health risk assessment. Metric and imperial. Free, private, no data stored.
Free Image Tools That Never Upload Your Files
Complete guide to 39 free image tools — compress, convert, edit in browser. No upload. No account. 100% private.
Understanding Currency Exchange Rates
Convert 200+ currencies with live rates. Multi-currency mode, favorites, crypto support. Free, no account required.
Free Developer Tools That Work Offline
98 free browser-based developer tools — JSON, regex, UUID, JWT, diff, and more. No upload, works offline. Zero data sent.
Free Invoice Generator for Freelancers
Create professional invoices with logo, discounts, tax. PDF download, auto-save, paid/unpaid status. No upload, free.
How to Build a Resume Online for Free
Build a professional resume in your browser. Two templates, PDF export, auto-save. No upload, no account. 100% private.
How to Create Free QR Codes Online (2026)
Generate QR codes for URLs, WiFi, vCards free in your browser. No upload, no account. Instant download as PNG, SVG, WebP.
How to Generate Secure Passwords in 2026
Create strong passwords, passphrases, and PINs in your browser. Uses Web Crypto API. No data stored, no account needed.
JSON Formatting and Validation Guide
Format, validate, and convert JSON in your browser. Tree view, diff, YAML export. No data uploaded. Free developer tool.
Complete Guide to Free JSON Tools
15 free JSON tools in your browser — format, validate, convert, diff, and transform JSON. No upload. Instant results.
How to Calculate Loan Payments Online
Calculate mortgage and loan payments with amortization, extra payments, and comparison mode. Free, private, no account.