Browse Categories
Discover all our free online utilities, organized by category. From crypto & security to hashing, blockchain, and trading calculators, we make it simple to find the right tool for your needs. All tools are 100% free, private, and run entirely in your browser.
#Crypto
Crypto tools provide secure utilities for hashing, key derivation, token generation, and blockchain calculations. From encoding and decoding to ROI and PnL calculators, they help developers, traders, and security professionals build and analyze cryptographic systems safely. All operations run client-side, ensuring data privacy and reliable performance across use cases.
Explore →#Hashing
Hashing tools let you convert input into secure digests like MD5, SHA, Blake, and Keccak. These functions protect passwords, verify file integrity, and secure blockchain applications. Developers and security experts rely on them to generate unique digital fingerprints. Everything runs locally for maximum safety and client-side performance.
Explore →#Passwords
Password tools help generate strong credentials, measure entropy, and derive secure keys. Features include password generators, strength checkers, and Argon2 or PBKDF2 derivation functions. These utilities protect against brute force and credential stuffing attacks, ensuring safe authentication. All tools are client-side, keeping your credentials fully private during use.
Explore →#Security
Security tools provide ways to improve authentication, protect passwords, and handle tokens. You can generate salts, derive secure keys, check password entropy, and debug JWTs. Designed for developers, these tools make it simple to enhance application security without exposing sensitive data. All calculations remain private in your browser.
Explore →#JWT
JWT tools let you generate and decode JSON Web Tokens used in modern APIs. They support secure algorithms like HS256 and allow inspection of token headers and payloads. Developers use them to debug authentication systems, verify claims, and build secure login flows. All operations are 100% local and private.
Explore →#Encoding
Encoding tools convert data into safe formats like Base64, Base32, Base58, Hex, or URL-encoded strings. These utilities are essential for APIs, cryptography, and transmitting binary data over text protocols. With instant encode and decode features, you can ensure accuracy and interoperability. All tools run client-side to protect privacy.
Explore →#Blockchain
Blockchain tools support Bitcoin, Ethereum, and DeFi use cases. They include Bech32 encoders, Keccak hash generators, impermanent loss calculators, and PnL estimators. Traders use them to evaluate strategies, while developers rely on them for address validation and hashing. Everything runs client-side, making blockchain operations fast, private, and secure.
Explore →#Trading
Trading tools include ROI, PnL, liquidation, risk/reward, and position size calculators. They help traders evaluate strategies, manage portfolio risks, and understand market exposure. Built for crypto and forex, these calculators provide accurate results instantly. All tools are private, running in your browser without storing or sending sensitive financial data.
Explore →#Calculator
Calculator tools support financial, cryptographic, and trading needs. They cover password entropy, Sharpe ratio, Fibonacci retracements, and value-at-risk estimations. Each calculator is designed for accuracy and speed, ensuring developers, traders, and security experts can work confidently. All calculations are processed locally to maximize privacy and safeguard sensitive information.
Explore →#UUID
UUID tools generate universally unique identifiers such as v1, v4, and v5. These are essential for databases, APIs, and distributed applications. Developers rely on UUIDs to ensure uniqueness across systems. Our UUID generator creates values instantly in your browser, allowing quick copy-paste usage without any data being exposed.
Explore →#Keys
Key utilities provide secure derivation methods such as PBKDF2, Argon2, and HKDF. They let you transform passwords into cryptographic keys for use in encryption and authentication. With customizable parameters like iterations, salt, and memory cost, developers can generate strong keys safely. All key generation happens locally in your browser.
Explore →#Converter
Converter tools help transform text between formats like Hex, UTF-8, Base64, and Morse code. These utilities simplify encoding, decoding, and data interoperability tasks. Developers use them to handle mixed data formats in cryptography or communication protocols. All conversions run instantly in your browser, ensuring secure and private operations.
Explore →#Morse Code
Morse code tools allow instant translation between plain text and Morse code. Useful for educational purposes, communication experiments, or cryptography, these translators convert back and forth seamlessly. All encoding and decoding is handled client-side, ensuring privacy while maintaining speed. Ideal for learners, hobbyists, and developers exploring simple ciphers.
Explore →#Risk Management
Risk management tools allow traders to calculate position sizes, risk/reward ratios, value at risk, and break-even points. Designed for crypto and forex markets, they help optimize trades and control losses. These calculators are privacy-focused, running locally to ensure sensitive inputs like balances or prices are never shared externally.
Explore →#Ethereum
Ethereum tools include Keccak hash generators, SHA3 utilities, and crypto calculators relevant to Ethereum’s blockchain ecosystem. Developers use them for dApp development, smart contract testing, and address verification. Traders can calculate ROI or perform Ethereum-specific analysis. All Ethereum-related calculations run client-side for speed, accuracy, and maximum privacy protection.
Explore →#Base Encodings
Base encoding tools provide conversions across formats like Base64, Base32, Base58, Base85, and Bech32. They are essential for cryptography, blockchain addresses, APIs, and binary-to-text encoding tasks. Developers use them daily for safe data transmission and interoperability. All conversions are instant and private, handled completely within the browser environment.
Explore →