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AiTechWorlds
AiTechWorlds
Encoding and security tools handle the cryptographic and encoding tasks developers hit daily — decoding JWT tokens, hashing text with SHA-256 or bcrypt, generating TOTP 2FA codes, UUIDs, and Base64. They use the browser-native Web Crypto API, so secrets and tokens never leave your device or touch a server.
For backend developers, security engineers, and API builders, this cluster replaces a dozen risky paste-into-a-website moments with private, local alternatives. Inspect a JWT header and payload, sign a fresh HS256 token, hash passwords with configurable bcrypt salt rounds, produce time-based one-time codes like Google Authenticator, encode and decode URLs and HTML entities, and generate cryptographically secure UUIDs — all without transmitting a single byte of sensitive material.
Encode plain text or URLs to Base64, or decode Base64 strings back — fully client-side.
Decode any JWT token to read the header, payload and expiry. Nothing is sent to any server.
Encode and decode URI components instantly — with query-safe mode and live preview.
Encode and decode HTML entities — supports full safe mode and all named entities.
Generate v4 UUIDs — single or bulk, with format options. Uses crypto.randomUUID().
Cryptographically secure passwords with strength meter, entropy score, and history.
Hash text with SHA-1, SHA-256, SHA-384 and SHA-512 simultaneously using Web Crypto.
Build and sign JWT tokens with HS256 using Web Crypto API — header, payload, and secret.
Hash and verify passwords with bcrypt — configurable salt rounds, all client-side.
Generate TOTP one-time codes (Google Authenticator style) using Web Crypto — no server.
Yes. All encoding and security tools run in your browser using the Web Crypto API. Your token, password, or secret is never uploaded, logged, or sent to any server — it stays entirely on your device.
The JWT Decoder reads an existing token to show its header, payload, and expiry. The JWT Builder creates and signs a new token with HS256 from claims and a secret you provide.
You can hash text with SHA-1, SHA-256, SHA-384, and SHA-512 simultaneously, and hash or verify passwords with bcrypt using adjustable salt rounds.
Yes. The UUID generator uses crypto.randomUUID() and the password generator uses the cryptographically secure random source built into your browser, not Math.random().