Technical Specifications
- Character Capacity
- Up to 7,089 numeric, 4,296 alphanumeric, or 2,953 byte characters
- Error Correction
- Level L (7%), M (15%), Q (25%), H (30%)
- Encoding
- UTF-8 multi-byte character support
Standard Industry Use Cases
- Cryptographic recovery phrases and secure offline backups
- Asset serial numbers and production line batch tokens
- Scavenger hunt clues and educational classroom quizzes
Recommended Hardware & Supplies
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Key Benefits of Text QR
100% Universal Raw Text Storage
Contains raw unformatted strings requiring no specific browser or application handlers.
Completely Offline Data Retrieval
Readable by any smartphone, barcode scanner, or optical camera with zero network connection.
High Density (Up to 4,296 Characters)
Store extensive serial lists, cryptographic public keys, or instruction manuals.
What Code Do I Need for My Product? (Customer Decision Guide)
Choosing the right barcode format depends on where your product is sold, the packaging substrate, and scanner infrastructure:
Industrial machinery serial numbers and calibration logs?
Encode permanent equipment metadata directly onto durable metal or vinyl asset tags.
Cryptographic public keys or recovery backup phrases?
Store offline cryptographic text strings on paper cold wallets without relying on third-party servers.
Legal & Compliance Guide
Plain Text Security & Visibility Warnings
- Plain text QR codes are completely unencrypted and can be read by anyone with a smartphone camera. Never encode sensitive passwords or personal health data in plaintext.
- For high-density text (>500 characters), select Error Correction Level L or M to prevent the QR matrix from becoming excessively dense.
- Standard QR Code symbols (ISO/IEC 18004). Dot styles and logos rely on the code's error correction, so test-scan styled codes before printing.
Frequently Asked Questions
What is the maximum amount of text I can encode?
A Version 40 QR code can store up to 4,296 alphanumeric characters or 7,089 numbers. For optimal scan speed, keep text under 300 characters.