Email Security Checker
Check a domain's email security setup by looking up SPF, DKIM, DMARC, and MTA-STS DNS records.
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QR Code Generator
Create QR codes for URLs, text, Wi-Fi credentials, vCards, and more with customizable size and colors.
QR Code Reader
Scan and decode QR codes from uploaded images or your device camera to extract embedded data.
File Checksum Calculator
Compute MD5, SHA-1, SHA-256, and SHA-512 checksums to verify file integrity and detect tampering.