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Eleven utilities for the developer toolkit: hashing, encoding, UUIDs, MAC addresses, subnet math and user agent parsing — all computed locally.
Instant 32-character digests, computed locally — uppercase and lowercase output.
Hash now → SHA256/512Modern secure hashing — switch between SHA-256 and SHA-512 in one dropdown.
Hash now → PASSWORDSProperly salted password hashes with adjustable rounds — plus a verify panel.
Hash now → BASE64UTF-8 safe encoding — emoji, Chinese and accented characters round-trip perfectly.
Encode now → PERCENTPercent-encode text for query strings, or decode the %20 garble back to readable.
Encode now → UUIDCryptographically random UUID v4 values — one at a time or in bulk up to 100.
Generate now → MACRandom MACs with vendor prefix and local-bit control, plus a 4-format parser.
Generate now → NETWORKNetwork, mask, wildcard, broadcast and host range from any IPv4 + CIDR.
Calculate now → IP ↔ DECIPv4 to decimal, hex and binary — and stored decimals back to dotted form.
Convert now → BASESAny base in, all bases out: binary, octal, decimal and hexadecimal side by side.
Convert now → UADecode any UA string into browser, OS and engine — or grab a random realistic one.
Parse now →Hashing uses a standard crypto library; UUIDs come from your browser's cryptographic random source; subnet math uses proper bit arithmetic. Everything runs locally — paste production secrets like API responses and internal config values without hesitation, because nothing is transmitted anywhere.
Working with prose instead of payloads? The Text Tools category covers case conversion, cleanup, counting and diffing.