UD5 Toolkit
Character Frequency Analyzer - Online Visual Heatmap of Text
Analyze letter/symbol frequency with an interactive bar chart and heatmap. Useful for breaking simple ciphers, linguistics, and SEO keyword analysis. Local processing.
Tag: Cryptocurrency Price Ticker
5+ toolsPBKDF2 Key Derivation Demo - Online Password‑Based Key
Derive a strong cryptographic key from a password using PBKDF2 with SHA‑256. Adjust iterations and salt. Educational and test tool.
Random Crypto Key Generator - Online Create API Tokens & Secrets
Generate strong random strings for API tokens, session secrets, or encryption keys. Uses crypto.getRandomValues().
Crypto Address Format Checker - Online Validate Wallet
Paste a Bitcoin, Ethereum, or other crypto wallet address and quickly verify its format and checksum. No connection to blockchain.
Crypto Price Ticker - Online Live Bitcoin & Ethereum
Live cryptocurrency prices from public APIs. Clean ticker with percentage changes. Pure frontend, no account needed.