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Validate card-like numbers with the Luhn checksum algorithm. Everything runs locally in this tab.
Valid Luhn checksum
Compute SHA-1, SHA-256, and SHA-512 hashes for text or files in your browser.
Infer a starter JSON Schema from sample JSON.
Generate .dockerignore rules for leaner Docker builds.
Generate .gitignore files from common project templates.
Encode text or files to Base64, or decode Base64 strings back to text.
Convert plain text to binary and binary back to readable text.
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