The most feature-rich truly free QR code generator that respects your privacy.
20 types including Micro QR & rMQR. Batch generation. UPI & SEPA payments. Gradients, templates, WiFi cards, business cards. No signup. No tracking.
Tip: right-click any spot on Google Maps and copy the coordinates
MeCard is a simpler alternative to vCard, preferred by some Android devices
Micro QR capacity: 35 digits, 21 uppercase alphanumeric, or ~15 bytes (lowercase/URLs). Best for short codes, serial numbers, and IDs. For URLs, use standard QR instead.
Rectangular Micro QR — a narrow, wide format ideal for test tubes, wristbands, and ticket strips. Up to 361 characters.
Upload a CSV to generate multiple QR codes at once. Each row becomes a QR code using your current style.
Format: type,data,filename — type and filename are optional. Use | to separate fields within data.
Supported types: url, text, wifi, phone, email, sms, vcard, whatsapp, location, upi, sepa. Download the sample to see all formats.
Enter content to generate your QR code
E-signatures that hold up in court
Abundera Sign goes beyond basic e-signatures. Every document gets cryptographic proof, independent verification, and a tamper-evident evidence package.
- Auto-generated court-ready evidence packages
- Personal Document Seal — detects tampering instantly
- Anchored to 5 independent systems — no single point of failure
What Is a Micro QR Code?
Micro QR (ISO/IEC 18004) is a compact variant of the standard QR code, designed for applications where space is extremely limited. It uses only one position detection pattern (instead of three), making it significantly smaller while still being machine-readable. Micro QR codes come in four versions (M1-M4) supporting up to 35 digits or 21 alphanumeric characters.
Micro QR is a rare feature — most free QR code generators don't support it. Abundera QR is one of the only tools that generates Micro QR codes at no cost.
Micro QR vs Standard QR
- Size: Micro QR has one position pattern vs. three, making it ~50% smaller for the same data
- Capacity: Up to 35 digits or 21 alphanumeric characters (vs. 7,089 digits for standard QR)
- Scanning: Requires specialized industrial scanners — most phone cameras cannot read Micro QR
- Use case: Industrial marking, PCBs, medical devices — not general consumer use
How to Create a Micro QR Code
- Enter short content — keep it under 21 characters for best results. Uppercase letters and numbers work best.
- Customize the style — colors, dot shapes, and templates all work with Micro QR.
- Download in SVG for maximum precision at any print size.
Where to Use Micro QR Codes
- PCB marking — identify circuit boards in manufacturing
- Medical device labeling — UDI compliance on small instruments
- Jewelry engraving — authentication codes on rings, watches, or tags
- Pharmaceutical packaging — lot numbers and batch codes on small vials or blister packs
- Component labeling — serial numbers on small electronic components
Frequently Asked Questions
Can smartphones scan Micro QR codes?
Most phone cameras cannot scan Micro QR codes. This format is designed for specialized industrial scanners like Scandit, Cognex, or Keyence. For codes that need to be scanned by phone cameras, use standard QR codes instead.
How much data can a Micro QR code hold?
Micro QR supports up to 35 numeric digits, 21 alphanumeric characters, or about 15 bytes of binary data. This is suitable for serial numbers, batch codes, short IDs, and similar compact data. For longer content, use standard QR.
What is the difference between Micro QR and rMQR?
Micro QR is square and very compact. rMQR (Rectangular Micro QR) is elongated/rectangular, designed for narrow spaces like test tubes and wristbands. rMQR can hold more data than Micro QR. Both require specialized scanners.