Free Online Hash Generators, JWT Decoders & Cryptography Tools
Generate SHA-256/512, MD5, and Bcrypt hashes, decode JWT tokens, generate HMAC signatures, test password entropy, and run AES encryption.
Available Tools (15)
View in Full Directory →AES-GCM Text Encryptor & Decryptor
Military-grade 256-bit AES-GCM client-side text encryption with PBKDF2 salt derivation.
PBKDF2 / Password Key Hasher
Derive secure cryptographic password hashes using PBKDF2 with custom iterations, salt, and SHA-512.
HTTP Basic Auth Header Builder & Decoder
Generate standard Authorization: Basic Base64 headers from credentials or decode existing tokens.
Bcrypt Hash Generator & Verifier
Generate salted Bcrypt password hashes ($2a$ / $2b$) with custom cost factors (rounds 4–14) and verify passwords.
Content Security Policy (CSP) Generator
Build strict, production-ready Content-Security-Policy HTTP headers to protect against XSS and injection attacks.
CORS Header Generator
Generate Cross-Origin Resource Sharing (CORS) rules for Raw HTTP, Nginx, Apache, Express, and Next.js.
CSR (Certificate Signing Request) Builder
Generate standard PKCS#10 SSL Certificate Signing Requests (CSR) and 2048-bit RSA Private Keys.
Hash Generator
Generate MD5, SHA-1, and SHA-256 hashes.
HMAC Generator & Verifier
Generate and verify Hash-based Message Authentication Codes (HMAC) with SHA-256, SHA-512, and secret keys.
Apache & Nginx .htpasswd Generator
Generate secure HTTP Basic Authentication .htpasswd entries in Bcrypt, SHA-1, and MD5-APR1 formats.
JWT Decoder
Decode JWT header and payload for inspection.
JWT Token Generator & Signer
Create, customize claims, and cryptographically sign JSON Web Tokens with HMAC-SHA256.
Password Generator
Generate secure and random passwords.
Password Strength & Entropy Analyzer
Calculate Shannon entropy bits, estimated GPU crack time, and audit password security.
RSA Public & Private Key Pair Generator
Generate cryptographically secure 2048-bit and 4096-bit RSA key pairs in standard PEM format.
Zero-Knowledge Cryptography & Authentication Tools
Testing authentication tokens, verifying file checksums, inspecting JSON Web Tokens, and generating cryptographic keys are critical security workflows.
Most online crypto tools are unsafe because they submit your private tokens or keys to a third-party server. ToolSnippet is built on Web Crypto API standards where 100% of cryptographic operations happen directly inside your browser sandbox.
No secrets, passwords, private keys, or API tokens ever leave your device.
Frequently Asked Questions
Everything you need to know about our free client-side security, hashing & crypto.
Explore Other Categories
All Categories (9) →Data & Schema Converters
Convert, format, transform, and structure data between JSON, CSV, XML, YAML, SQL, TSV, TOML, and database schemas instantly in your browser.
Text & String Utilities
Format, count, sanitize, sort, filter, deduplicate, and analyze text strings with zero latency and complete privacy.
Calculators & Math Tools
Compute percentages, conversions, bandwidth transfer times, statistical distributions, loan payments, and binary math instantly.