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Security Tools & Utilities

Generate cryptographically strong passwords, evaluate password entropy, verify SHA file hashes, and inspect or sign JSON Web Tokens safely. Browse all 5 free browser-based tools below.

About Security on Outlivo

Maintaining robust digital security requires strong cryptographic primitives, high-entropy credential generation, and secure data verification. The Outlivo Security Tools suite equips cybersecurity professionals and web developers with cryptographically secure pseudo-random password generators, real-time password entropy checkers, JSON Web Token (JWT) decoders and creators, and multi-algorithm file hash verifiers supporting SHA-256, SHA-512, SHA-384, and SHA-1. Utilizing the browser's native Web Crypto API, hash calculations and token analyses occur client-side in browser memory without sending keys or payloads to a server.

Curated Security Workflows

JWT & Auth

JSON Web Token (JWT) Security

2 tools

Decode header and payload claims, debug signature verification algorithms (HS256, RS256), and build secure token structures.

JWT Security Hub

Inspect, decode, and debug JSON Web Tokens (JWT) or craft and sign new tokens locally with HMAC SHA-256 using client-side processing.

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JWT Debugger

Decode, debug, and verify JSON Web Tokens (JWT) in your browser. Inspect headers, payload claims, and expiration without sending tokens over the network.

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Passwords & Hashes

Passwords & Cryptographic Hashing

3 tools

Generate high-entropy credentials, measure bit strength and crack times, and calculate SHA-256, SHA-512, SHA-384, and SHA-1 file hashes.

Password Security Hub

Generate cryptographically secure passwords while testing password strength, crack time, and Shannon entropy locally in your browser.

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Password Generator

Generate strong, secure passwords using browser Web Crypto API. Customize length, symbols, and character sets locally without uploading data to servers.

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File & Text Hash Suite

Free online file hash checker. Compute SHA-256, SHA-512, SHA-384, and SHA-1 checksums locally in your browser memory to verify software integrity.

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All Security Tools

Browse our complete suite of 5 browser-based security utilities.

File & Text Hash Suite

Free online file hash checker. Compute SHA-256, SHA-512, SHA-384, and SHA-1 checksums locally in your browser memory to verify software integrity.

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Password Security Hub

Generate cryptographically secure passwords while testing password strength, crack time, and Shannon entropy locally in your browser.

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JWT Security Hub

Inspect, decode, and debug JSON Web Tokens (JWT) or craft and sign new tokens locally with HMAC SHA-256 using client-side processing.

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JWT Debugger

Decode, debug, and verify JSON Web Tokens (JWT) in your browser. Inspect headers, payload claims, and expiration without sending tokens over the network.

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Password Generator

Generate strong, secure passwords using browser Web Crypto API. Customize length, symbols, and character sets locally without uploading data to servers.

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In-Depth Security Guides

8 min read

Understanding JWTs: Structure, Claims, Signatures & Security Pitfalls

Deep dive into JSON Web Tokens (RFC 7519). Learn header decoding, registered claims, symmetric HMAC vs asymmetric RSA signatures, and security best practices.

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10 min read

How to Verify File Checksums: Complete SHA-256 and Cryptographic Integrity Guide

Learn how to verify file integrity with SHA-256, SHA-512, and cryptographic checksums. Prevent download corruption and ensure binary authenticity.

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8 min read

Password Entropy, Cryptographic Hashing, and Authentication Security Guide

Technical guide to password strength, mathematical entropy calculations, modern hashing algorithms (Argon2id, bcrypt, scrypt), and credential security best practices.

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