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Tool Collection

ID, Password and Hash Tools

This topic collects quick browser tools for IDs, passwords, TOTP codes and lightweight verification work.
7 tools6 related articles
How To Use This Collection
Use the task notes to define the workflow first, then move into the tool pages below in the order that fits the job.
  • Generate fresh IDs for tests and placeholders
  • Create strong passwords, JWT checks and live TOTP codes
  • Handle quick one-off verification and key-related tasks
Related Articles
These articles explain the technical topics and processing boundaries behind related tools.
RSA Keys Explained: Encryption, Signatures, Padding, and Private Key Safety

A technical article on RSA public and private keys, why padding matters, how signing differs from encryption, and why demos are not key management.

JWTs Explained: Decoding Claims Without Confusing Them With Validation

A practical explanation of JWT structure, claims, Base64URL encoding, signatures, and why decoding a token is not the same as trusting it.

UUIDs Explained: Versions, Randomness, Sorting, and Safe Use

A technical guide to UUID versions, why v4, v5, and v7 behave differently, and where UUIDs are useful or misleading in application design.

SHA-256 Explained: Hashes, Integrity Checks, Salts, and Misuse

A practical guide to SHA-256 hashing, file integrity checks, password caveats, collision resistance, and why hashes are not encryption.

Encryption Basics in the Browser: Hashing, Symmetric Keys and What Stays Local

Hashing is not encryption. Symmetric encryption needs a secret both sides share. What browser-side crypto can and cannot protect.

Reading a JWT: What Decoding Shows and What It Proves

A JWT is three base64url segments, and decoding one tells you nothing about whether it is genuine. How to read the claims, and why tokens break in URLs.

Adjacent Collections
Code and Data Formatting Tools

Format JSON, XML, YAML, TOML, encode text, inspect headers, and validate technical data quickly.

Time, Date and Schedule Tools

Convert timestamps, time zones, cron expressions, and time-based codes for real work.

Cryptography and Security Tools

Work with JWT, hashes, TOTP, AES, DES, RSA, and password generation from one security toolbox.

Tools In This Collection

Start from these tools, then move back into articles and adjacent collections as the workflow expands.
Developer

UUID Generator

Generate UUID v1, v3, v4, v5, v6 and v7 with namespace, batch output, uppercase and hyphen options.

uuid-generator
Developer

SHA Hash Generator

Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes for text or small files.

sha-hash-generator
Utility

Password Generator

Generate strong random passwords with length, character sets, memorable mode and ambiguity filters.

password-generator
Utility

TOTP Generator

Generate current TOTP codes from a secret or otpauth URI with configurable digits, period and algorithm.

totp-generator
Developer

JWT Decoder

Decode JWT header and payload locally, inspect claims, expiry times and raw Base64URL segments.

jwt-decoder
Developer

RSA Key Tool

Generate browser-side RSA key pairs and use them for short text encryption, decryption, signing and verification.

rsa-tool
Developer

JWT Encoder

Generate HS256, HS384 or HS512 JSON Web Tokens directly in the browser for testing and local workflows.

jwt-encoder