Base64 to QR Code Generator
Type your text, get it Base64-encoded instantly, then generate a scannable QR code — all in one step.
About Base64 to QR Code Generator
This tool first encodes your text into Base64 format, then generates a QR code from the encoded string. It is ideal for sharing Base64-encoded data between devices without copy-pasting long strings — simply scan the QR code with any smartphone camera.
How It Works
- Type or paste any text into the input box.
- The tool immediately encodes it to Base64 format.
- Click Generate QR to render a scannable QR code from the Base64 string.
- Download the QR as a PNG image or scan it directly from the screen.
Use Cases
- Device transfer: Share configuration strings, tokens, or credentials between a desktop and a mobile device by scanning instead of typing.
- Offline sharing: Print QR codes to share Base64 data without an internet connection.
- JWT payloads: Encode a JWT or API key to Base64 and share via QR for quick import into mobile apps.
- Data URIs: Share small Base64-encoded images or files as QR codes.
- Developer workflows: Quickly pass encoded values between a dev machine and a test device.
QR Code Size Limits
QR codes support up to approximately 2,900 alphanumeric characters. Since Base64 encoding increases data size by ~33%, your original input should ideally be under 2,100 characters to produce a scannable QR. Longer inputs result in denser QR codes that may be harder to scan — this tool warns you automatically.
Frequently Asked Questions
What is a Base64 QR code?
A Base64 QR code is a QR code whose data payload contains a Base64-encoded string. It lets you share encoded text or data between devices by scanning with a smartphone camera, without manually copying long strings.
How do I generate a QR code from Base64?
Enter your text in the input box above. The tool automatically encodes it to Base64, then click Generate QR to create a scannable QR code from the result. You can download it as a PNG image.
What is the maximum text length for a Base64 QR code?
QR codes can hold up to about 2,900 characters in alphanumeric mode. Since Base64 expands data by ~33%, your original text should be under ~2,100 characters for a reliably scannable QR code.
Is my data sent to a server when generating the QR code?
No. All encoding and QR generation happens entirely in your browser using JavaScript. Nothing is sent to our servers.
What can I use a Base64 QR code for?
Common uses include transferring configuration strings, sharing API keys or tokens, passing encoded credentials between devices, embedding data URIs, and sharing small Base64 payloads without copy-pasting long strings.