QR Code Generator
Generate custom QR code images
Please enter content
Content Types
Supports text, URL, phone, email, WiFi configuration and other content types
Size Selection
Choose appropriate size based on usage scenario, large size recommended for printing
Error Correction
Higher error correction level makes QR code more complex but more fault-tolerant
Color Settings
Maintain sufficient contrast between foreground and background colors for scanning
Key Features
SVG Placeholder Generator
Generate custom SVG placeholder images
JSON Formatter
Format, validate and minify JSON data
JSON to CSV
Convert JSON data to CSV format
JSON to YAML
Convert JSON data to YAML format
JSON to XML
Convert JSON data to XML format
JSON Visualizer
Display JSON data in tree structure
JSON Data Generator
Generate mock JSON data for testing
JSON Diff Comparison
Compare differences between two JSON data
Base64 Encoder/Decoder
Base64 string encoding and decoding tool
URL Encoder/Decoder
URL string encoding and decoding tool
MD5 Hash Generator
Generate MD5 hash values from text
SHA256 Hash Generator
Generate SHA256 hash values from text
SHA1 Hash Generator
Generate SHA1 hash values from text
Hex Encoder/Decoder
Hexadecimal string encoding and decoding tool
Binary Encoder/Decoder
Binary string encoding and decoding tool
Password Generator
Generate secure and reliable random passwords
AES Encrypt/Decrypt
AES symmetric encryption algorithm tool
RSA Encrypt/Decrypt
RSA asymmetric encryption algorithm tool
HMAC Generator
HMAC message authentication code generation tool
IP Address Lookup
Query geographical location and network information of IP addresses