Author
Rehan Haider
Software engineer & founder of Fast QR
Rehan Haider is a software engineer and the founder of Fast QR. He's spent over a decade shipping production web systems and now builds tools where privacy is the default — not an upsell. The free generator runs entirely in your browser, so the data you encode never touches a server. Richer tools for teams are on the way.
Rehan started Fast QR because too many QR generators came with strings — an account, an email, a tracking pixel, or a watermarked PNG. Fast QR is what the entry point should look like: in your browser, no signup, no tracking pixels.
Premium tools for teams — dynamic QR codesA QR codeA 2D matrix barcode that encodes data in a square grid of black and white modulesA single black or white square in the QR grid. The number of modules per side scales with the QR versionThe size of a QR code, numbered 1 (21×21 modules) through 40 (177×177). Higher versions store more data but require more printed space. Read more →, from 21×21 modules for version 1 up to 177×177 for version 40. Read more →. Read more → that points to a short redirect URL controlled by a service. Read more →, scan analytics, branded campaigns — are on the way. The free generator stays free, stays private, and stays the same.
Blog posts by Rehan Haider
- Accessible QR Code Design for Low Vision, Color Blindness, and Motor Limits
May 9, 2026
- AI and QR Codes in 2026: Where the Hype Stops and Real Value Starts
May 9, 2026
- The 12 QR Code Mistakes I See Most Often (and How to Avoid Them)
May 9, 2026
- QR Codes for LinkedIn and Professional Networking: What Actually Works
May 9, 2026
- QR Code Analytics and Tracking: Measuring What Actually Matters
May 9, 2026
- QR Code Design Principles That Stay On-Brand and Still Scan
May 9, 2026
- QR Code Marketing Guide for 2026: Strategy, Placement, and Attribution
May 9, 2026
- QR Code Security Best Practices for Scanners and Brands in 2026
May 9, 2026
- QR Code Trends Worth Watching in 2026 and Beyond
May 9, 2026
- QR Codes for Nonprofits: Donations, Storytelling, and Volunteer Funnels
May 9, 2026
- Restaurant QR Menu Playbook: Rollout, Placement, and What Actually Drives Adoption
May 9, 2026
- Retail QR Code Strategies: Packaging, Stores, and Loyalty
May 9, 2026
- Why Some QR Codes Don't Scan: A Field Diagnostic Guide
May 9, 2026
- Business Card QR Code vs Linktree: Which Belongs on Your Card
Apr 26, 2026
- Menu QR vs PDF Menu: Which Format Wins on the Table
Apr 26, 2026
- QR Code Statistics 2026: Adoption, Usage, and Trends
Apr 26, 2026
- QR Code vs NFC Tag: Cost, Compatibility, and When to Use Each
Apr 26, 2026
- QR Code vs Short URL: Which Belongs on Print and Which on Screens
Apr 26, 2026
- Best Uses of QR Codes in Business (With Real Examples)
Apr 15, 2026
- QR Code Print Checklist: Print-Ready Pre-Press Review for QR Symbols
Apr 11, 2026
- Wi-Fi QR Code Best Practices for Homes, Offices, and Events
Apr 9, 2026
- Static vs Dynamic QR Codes: Which One Fits Your Campaign?
Apr 8, 2026
Learn guides by Rehan Haider
- QR Code Examples: What They Look Like and What Data They Hold
May 26, 2026
- Colored QR Codes: How to Use Brand Colors Without Breaking Scans
Apr 26, 2026
- QR Code with Logo: How to Add Branding Without Breaking Scans
Apr 26, 2026
- QR Code Format: PNG vs SVG and When to Use Each
Apr 26, 2026
- QR Code Benefits for Business and Personal Use
Apr 16, 2026
- QR Code Use Cases: Six Practical Ways to Connect Print to Action
Apr 16, 2026
- Are QR Codes Safe? Risks, Scam Patterns, and Best Practices
Apr 15, 2026
- How QR Codes Work: Scanning, Decoding, and Examples
Apr 15, 2026
- How to Track QR Code Scans (Without Guesswork)
Apr 15, 2026
- QR Code Design Best Practices (Colors, Logos, and Reliability)
Apr 15, 2026
- Email, Phone, and SMS QR Codes: Best Use Cases and Copy Patterns
Apr 15, 2026
- QR Code Error Correction Levels: Types, Meaning, and Safe Defaults
Apr 15, 2026
- QR Code Size and Print Guidelines (So It Scans Every Time)
Apr 15, 2026
- QR Code vs Barcode: Differences, Capacity, and Use Cases
Apr 15, 2026
- Wi-Fi QR Code Best Practices and Security Tips for Guest Networks
Apr 15, 2026
- What Is a QR Code? Definition, Anatomy, and Real Examples
Apr 15, 2026