Security Tools
17 tools
Hash generators, encryption utilities, and security validation tools
AES Decryption Tool — OpenSSL & CryptoJS Compatible
security
Decrypt AES online — GCM/CBC/CTR, passphrase or raw key, auto-detects OpenSSL & CryptoJS "U2FsdGVkX1" format. 100% in-browser, keys never leave the page.
AES Encryption Tool — GCM, CBC & CTR
security
Free online AES encryption — AES-128/192/256, GCM/CBC/CTR, passphrase (PBKDF2) or raw key. Runs 100% in your browser; nothing is uploaded.
Bcrypt Hash Generator & Verifier
security
Generate and verify bcrypt password hashes online — adjustable cost, $2b$/$2a$/$2y$ prefixes. 100% in your browser; your password is never uploaded.
HMAC Generator & Signature Verifier
security
Free online HMAC generator & verifier — compute or verify HMAC-SHA256/SHA1/384/512 with Text, Hex or Base64 keys and Hex/Base64/Base64URL output. 100% in your browser; your secret key never leaves the page.
JWT Decoder
security
Decode JWT tokens online with our free JWT decoder. Instantly inspect header, payload, signature, expiration, algorithm, and claims. 100% browser-based — your token never leaves your device. No signup, no tracking.
JWT Encoder & Generator
security
Free online JWT generator & encoder. Build the header and payload, sign with HS256, RS256, or ES256 instantly. 100% in-browser — your secret and key never leave your device.
Free JWT Secret Generator — HS256/384/512
security
Generate a strong, RFC-correct JWT secret for HS256/384/512 — 100% in your browser, never sent to a server. base64url, base64 or hex; copy for .env.
MD5 Hash Generator & File Checksum Tool
security
Generate MD5, SHA-256, SHA-1 & SHA-512 hashes online for free. Hash text or files in your browser, verify checksums and copy results. No signup needed.
Random Password Generator — Customizable, Strong & Secure
security
Generate strong random passwords instantly — free, 100% in your browser. Customize length & characters, batch up to 50 with entropy analysis.
SHA-1 Hash Generator (160-bit Legacy)
security
Generate SHA-1 hashes in your browser — 40-character hex output, no upload. Legacy tool for Git fingerprints, old certificate checks, and migration audits. Data never leaves your device.
SHA-256 Hash Generator & Checksum Tool
security
Generate SHA-256 hashes online for free. Hash text or files in your browser, verify checksums, and copy 64-character hex output. No signup; data never leaves the page.
SHA-3 Hash Generator (Keccak SHA3-256)
security
Generate SHA-3 hashes online free. NIST FIPS 202 sponge construction — the post-SHA-2 standard. SHA3-256 output in 64 hex chars. Browser-only via lazy-loaded js-sha3; zero uploads.
SHA-384 Hash Generator (TLS Suite B Hash)
security
Generate SHA-384 hashes online — 96-character hex output, length-extension immune, NSA Suite B compliant. Paired with AES-256-GCM in TLS. All hashing runs in your browser via Web Crypto API.
SHA-512 Hash Generator (512-bit SHA-2)
security
Generate SHA-512 hashes online — 128 hex chars output, faster than SHA-256 on 64-bit CPUs. Ideal for long-term archives, LUKS key derivation, and HMAC-SHA-512. Browser-only, zero uploads.
TOTP / 2FA Code Generator
security
Generate a TOTP/2FA code from a Base32 secret instantly — 100% in your browser, your secret never leaves your device. QR setup + code verify. Free, no signup.
Free ULID Generator — Generate, Decode & Convert ULIDs
security
Generate, decode, and convert ULIDs online — free and 100% in your browser. Extract the embedded timestamp from any ULID, convert ULID to UUID and back, batch-generate, with a monotonic mode. Nothing is ever sent to a server.
UUID Generator & Decoder — v1, v4, v5, v7 Batch Mode
security
Free UUID generator — create v1, v4, v5, v7 UUIDs instantly. Decode & validate any UUID. Batch generate up to 50. No signup, 100% browser-based.