Practical guides
for developers.
Practical blog posts that explain the workflows around WebToolsPlanet tools: formatting, accessibility, gradients, JSON debugging, QR publishing, and more.
Are Free QR Code Generators Safe? What to Check Before You Use One
Learn what makes a free QR code generator safe or risky, what data they can collect, and how to check if a site is trustworthy before generating codes.
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Support content that explains the workflows behind the tools, not just the widget controls.
How to Generate a Google Review QR Code (Free, No App)
Create a QR code that opens your Google review page directly. Step-by-step guide for businesses, restaurants, and service providers.
How to Generate a QR Code for an Outlook Email or Link
Create a QR code for an Outlook email address, calendar invite link, or shared folder URL. Works on desktop and mobile without any add-in.
How to Generate a QR Code in Excel (Free Methods)
Three ways to create QR codes in Excel — using an online generator, a free add-in, and a formula method. No coding required.
How to Get a Zelle QR Code for Payments
Find and share your official Zelle QR code from your bank app, plus safe fallback options when your bank does not support Zelle QR codes.
How to Create a QR Code for a PDF Document
Create a QR code for a PDF brochure, catalog, resume, menu, manual, or document. Covers public PDF links, Google Drive sharing, testing, and print settings.
How to Create a QR Code for Google Forms
Create a QR code for a Google Form, survey, RSVP, attendance form, registration form, or feedback form. Covers sharing permissions, examples, mistakes, and print checks.
How to Create a QR Code for Instagram (Free, No App Needed)
Create a free QR code for your Instagram profile, post, or Reel. Step-by-step guide with print size tips, use cases, and FAQ for creators and small businesses.
How to Create a QR Code Menu for Restaurants and Cafes
Create a restaurant menu QR code for table tents, counters, receipts, takeout bags, and window signs. Covers menu URLs, PDF menus, placement, mistakes, and testing.
How to Create a vCard QR Code for Business Cards
Create a vCard QR code for business cards, badges, flyers, and networking. Covers contact fields, print size, privacy, mistakes, and scan testing.
How to Create a WhatsApp QR Code with a Pre-filled Message
Create a WhatsApp QR code that opens a chat with your number and optional pre-filled message. Includes phone format, business examples, mistakes, and print tips.
How to Generate QR Codes in Bulk (Free, Browser-Based)
Generate multiple QR codes at once using the free WebToolsPlanet Bulk QR Code Generator. Step-by-step guide including how to use a URL list from Excel.
QR Code Statistics 2026: Usage, Retail, Mobile and Security Trends
Current QR code statistics for 2026, covering smartphone adoption, mobile internet scale, retail 2D barcode migration, consumer product scans, and QR phishing risk.
How to Choose Accessible Button Colors
Pick accessible button colors for labels, fills, borders, hover states, disabled states, and focus rings without flattening your UI.
WCAG AA vs AAA Contrast: Simple Guide for Designers
Understand the difference between WCAG AA and AAA contrast targets, when each one is realistic, and how to apply them without overcorrecting your palette.
What Is a Good Color Contrast Ratio?
A practical explanation of good contrast ratios for body text, large headings, icons, buttons, and muted interface states.
QR Code Not Scanning? 7 Causes and How to Fix Each One
QR code not scanning? Diagnose the problem by cause: low contrast, cropped quiet zone, print size, logo, payload error, or wrong test method. Fix each one step by step.
How to Add a Logo to a QR Code Without Breaking It
A guide to creating branded QR codes with a logo in the center while keeping them scannable. Covers error correction, logo size limits, contrast rules, and testing checklist.
How to Create a Free UPI QR Code for Your Shop
Step-by-step guide to generating a UPI payment QR code for GPay, PhonePe, Paytm, and BHIM. Covers UPI ID format, fixed vs open amounts, print sizes, and safety rules.
How to Create a WiFi QR Code for Free — No App Needed
A practical guide to creating a printable WiFi QR code for homes, cafes, restaurants, hotels, and offices. Works on iPhone and Android without any app.
QR Code Size Chart — Cards, Posters & Banners
Complete QR code size chart covering minimum size, sticker size, scan distance rules, business cards, posters, menus, packaging, banners, and DPI requirements for PNG and SVG.
How to Decode JWT Tokens Safely
Decode a safe demo JWT token, inspect common claims, and learn what not to paste into an online JWT decoder.
CSS Gradient Tips for Better UI
Learn how to make gradients look intentional, keep text readable, and use gradients as supporting UI structure rather than visual noise.
How to Check Color Contrast for Accessibility
A practical guide to checking contrast for text, buttons, and UI states without confusing AA, AAA, gradients, or large-text exceptions.
JSON Formatter vs Validator vs Viewer
Understand the difference between formatting JSON, validating it, and exploring it visually so you can pick the right tool for each debugging job.
Static vs Dynamic QR Code: Key Differences Explained
Compare static and dynamic QR codes, when each type makes sense, and how to choose the right QR workflow for print, campaigns, tracking, and stable links.
What Is SQL Formatting and Why It Matters
Understand what SQL formatting actually changes, when it helps most, and why clean query layout matters for debugging, reviews, and team workflows.