QR Code Generator for Links, WiFi, and Contacts

Quick answer: Pick a QR type, fill in the fields, generate, then scan-test. Use /qr-code-decoder (QR Code Generator) to create QR codes for Link, Text, WiFi, vCard, Event, WhatsApp, SMS, and Email.

• Link or plain text
• WiFi network details
• vCard contact data
• Event details
• Messaging actions like WhatsApp, SMS, or Email

Key takeaways

• Definition: Common QR types explains what you are looking at and why it matters in practice.
• Context: this section helps you interpret inputs and outputs correctly, not just run a tool.
• Verification: confirm assumptions (format, encoding, units, or environment) before changing anything.
• Consistency: apply one approach end-to-end so results are repeatable and easy to debug.

Common pitfalls

• Mistake: skipping validation and trusting the first output you see from Common QR types.
• Mistake: mixing formats or layers (for example, decoding the wrong field or using the wrong unit).

Quick checklist

1. Identify the exact input format and whether it is nested or transformed multiple times.
2. Apply the minimal transformation needed to make it readable.
3. Validate the result (structure, encoding, and expected markers).
4. If the result still looks encoded, repeat step-by-step and stop as soon as it becomes clear.

1. Choose the right type.
2. Fill in the fields.
3. Generate and test with two devices.

Why this workflow works

• How to build a reliable QR reduces guesswork by separating inspection (readability) from verification (correctness).
• It encourages small, reversible steps so you can pinpoint where things go wrong.
• It keeps the original input intact so you can always restart from a known-good baseline.

Detailed steps

1. Copy the raw input exactly as received (avoid trimming or reformatting).
2. Inspect for obvious markers (delimiters, prefixes, or repeated escape patterns).
3. Decode/convert once and re-check whether the output is now readable.
4. If it is still encoded, decode again only if you can explain why (nested encoding is common).
5. Validate the final output (JSON parse, XML parse, expected timestamps, etc.).

What to record

• Save the working sample input and the successful settings as a reusable checklist.

• Use the exact SSID
• Pick the right security type
• Avoid extra spaces in the password

Key takeaways

• Definition: Tips for WiFi QR codes explains what you are looking at and why it matters in practice.
• Context: this section helps you interpret inputs and outputs correctly, not just run a tool.
• Verification: confirm assumptions (format, encoding, units, or environment) before changing anything.
• Consistency: apply one approach end-to-end so results are repeatable and easy to debug.

Common pitfalls

• Mistake: skipping validation and trusting the first output you see from Tips for WiFi QR codes.
• Mistake: mixing formats or layers (for example, decoding the wrong field or using the wrong unit).

Quick checklist

1. Identify the exact input format and whether it is nested or transformed multiple times.
2. Apply the minimal transformation needed to make it readable.
3. Validate the result (structure, encoding, and expected markers).
4. If the result still looks encoded, repeat step-by-step and stop as soon as it becomes clear.

Include full name, organization, phone, email, and address. Keep it simple for better scanning reliability.

Key takeaways

• Definition: vCard basics explains what you are looking at and why it matters in practice.
• Context: this section helps you interpret inputs and outputs correctly, not just run a tool.
• Verification: confirm assumptions (format, encoding, units, or environment) before changing anything.
• Consistency: apply one approach end-to-end so results are repeatable and easy to debug.

Common pitfalls

• Mistake: skipping validation and trusting the first output you see from vCard basics.
• Mistake: mixing formats or layers (for example, decoding the wrong field or using the wrong unit).

Quick checklist

1. Identify the exact input format and whether it is nested or transformed multiple times.
2. Apply the minimal transformation needed to make it readable.
3. Validate the result (structure, encoding, and expected markers).
4. If the result still looks encoded, repeat step-by-step and stop as soon as it becomes clear.

• Link: https://example.com
• Text: Hello from AnythingConvert
• WiFi: WIFI:T:WPA;S:MyNetwork;P:MyPassword;;
• WhatsApp: https://wa.me/15551234567?text=Hello
• SMS: SMSTO:+15551234567:Hello
• Email: mailto:[email protected]?subject=Hello

vCard (typical): BEGIN:VCARD VERSION:3.0 FN:Jane Doe ORG:Example Inc TEL:+15551234567 EMAIL:[email protected] END:VCARD

Event (iCalendar, typical): BEGIN:VCALENDAR VERSION:2.0 BEGIN:VEVENT SUMMARY:Team Meeting DTSTART:20260105T170000Z DTEND:20260105T173000Z END:VEVENT END:VCALENDAR

Always scan the QR before sharing. One small typo can break the experience.

Key takeaways

• Definition: Final check explains what you are looking at and why it matters in practice.
• Context: this section helps you interpret inputs and outputs correctly, not just run a tool.
• Verification: confirm assumptions (format, encoding, units, or environment) before changing anything.
• Consistency: apply one approach end-to-end so results are repeatable and easy to debug.

Common pitfalls

• Mistake: skipping validation and trusting the first output you see from Final check.
• Mistake: mixing formats or layers (for example, decoding the wrong field or using the wrong unit).

Quick checklist

1. Identify the exact input format and whether it is nested or transformed multiple times.
2. Apply the minimal transformation needed to make it readable.
3. Validate the result (structure, encoding, and expected markers).
4. If the result still looks encoded, repeat step-by-step and stop as soon as it becomes clear.

Do QR codes expire?

The QR image does not expire. The destination might (for example, a temporary link).

Why do some QR scanners behave differently?

Some formats (especially vCard and events) have optional fields. Different scanner apps support different subsets, so keeping payloads simple improves compatibility.

What should I do if the output still looks encoded?

Decode step-by-step. If you still see obvious markers (percent codes, escape sequences, or Base64-like text), the data is likely nested.

What is the safest way to avoid bugs?

Keep the original input, change one thing at a time, and validate after each step so you know exactly what fixed the issue.

Should I use the decoded value in production requests?

Usually no. Decode for inspection and debugging, but send the original encoded form unless your protocol explicitly expects decoded text.

Why does it work in one environment but not another?

Different environments often have different settings (time zones, keys, encoders, or parsing rules). Compare a known-good sample side-by-side.

• Denso Wave QR Code - Official QR origin.
• ISO/IEC 18004 (QR Code) - QR code standard.
• RFC 3986: URI Generic Syntax - URL structure.
• RFC 6068: The mailto URI Scheme - Email links.
• RFC 5724: The SMS URI Scheme - SMS links.
• RFC 6350: vCard Format Specification - vCard data.
• RFC 5545: iCalendar - Event data.
• WhatsApp Click to Chat - WhatsApp link format.
• ZXing Barcode Contents - Common QR payloads.
• IANA URI Schemes Registry - Allowed URI schemes.