Developer & Encryption Tools

Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes instantly. Free online hash generator for passwords, files, and data security. No install required.

Generate SHA-256 hashes online for free. Create SHA256 checksums instantly in your browser for file verification, data integrity, cryptography, and testing.

Generate Argon2id password hashes online for free. Create secure, memory-hard hashes with configurable parameters directly in your browser.

Encode and decode text to Base64 online for free. Convert strings and data to Base64 or decode Base64 back to readable text instantly with ease.

Generate HMAC-SHA384 signatures online for free. Create secure message authentication codes with SHA-384 for API signing in your browser.

Generate UUIDs online for free. Create Version 4 and Version 7 UUIDs instantly in your browser for development, testing, and unique identifiers.

Generate secure JWT tokens and secret keys online for free. Supports HS256, RS256, and ES256 algorithms for authentication and API security.

Generate SHA-1 hashes online for free. Create SHA1 checksums instantly in your browser for file verification, legacy systems, and data integrity.

Generate SHA-512 hashes online for free. Create SHA512 checksums instantly in your browser for file verification, data integrity, cryptography, and testing.

Generate HMAC-SHA512 signatures online for free. Create secure message authentication codes with SHA-512 for maximum security in your browser.

Generate HMAC-SHA256 signatures online for free. Create secure message authentication codes for API signing and data integrity verification in your browser.

Generate secure, random API keys online for free. Create custom-length keys with prefixes for REST APIs, GraphQL, and OAuth authentication.

Generate and verify bcrypt password hashes online for free. Create secure bcrypt hashes with configurable cost factor directly in your browser.

Generate RSA public and private key pairs online for free. Create 2048 or 4096-bit keys in PEM format directly in your browser.

View and decode SSL/TLS certificates online for free. Inspect X.509 PEM certificates — subject, issuer, validity, SANs, and fingerprints in your browser.

Check your website security headers online for free. Scan HTTP headers including CSP, HSTS, X-Frame-Options, and get security recommendations instantly.

Generate OAuth2 access tokens online for free. Create bearer tokens for API authentication with Client Credentials, Authorization Code, and other grant types.

Generate SHA-384 hashes online for free. Create SHA384 checksums instantly in your browser for data integrity, cryptographic testing, and secure applications.

Encode and decode URLs online for free. Convert text, query strings, and special characters instantly with our fast browser-based URL tool.

Generate self-signed SSL/TLS certificates online for free. Create X.509 certificates, private keys, and CSRs for development and testing.

Encode text to binary or decode binary back to text online for free. Convert strings to binary (Base2) and decode binary strings instantly in your browser.

Generate HMAC signatures online for free using SHA-256, SHA-384, or SHA-512. Create secure message authentication codes for API signing instantly.

Encrypt and decrypt text with AES-128, AES-192, or AES-256 online for free. Supports GCM, CBC, and CTR modes. Runs in your browser — no data uploaded.

Generate a CSR and private key online for free. Create Certificate Signing Requests for SSL/TLS certificates with RSA or ECC keys.

Generate MD5 hashes online for free. Create MD5 checksums instantly in your browser for file verification, data integrity, and quick testing.

Encode text to hex or decode hex back to text online for free. Convert strings to hexadecimal (Base16) and decode hex strings instantly in your browser.

Validate credit card numbers online for free using the Luhn algorithm. Check number validity and identify supported card types in your browser.