Free Online Tools

Free online tools for hashing, encoding, passwords, and web development. Calculate and verify checksums with MD5, SHA-1, SHA-2, SHA-3, and Keccak-256, generate strong passwords and password hashes, encode Base64, create UUIDs, and build CSS gradients and rounded corners.

Every tool runs locally in your browser. Your text, files, and passwords are not uploaded to a server, and the hash calculators remember only display settings, never your input.

Text, Hash & Data Tools

SHA-256 Hash CalculatorPopular

Calculate and verify SHA-256 hashes from text, files, Hex, or Base64 input, calculated locally in your browser.

SHA-224 Hash Calculator

Calculate and verify SHA-224 hashes from text, files, Hex, or Base64 input.

SHA-384 Hash Calculator

Calculate and verify SHA-384 hashes from text, files, Hex, or Base64 input.

SHA-512 Hash Calculator

Calculate and verify SHA-512 hashes from text, files, Hex, or Base64 input.

SHA-2 Hash Calculator

Calculate SHA-224, SHA-256, SHA-384 and SHA-512 hashes from the same text.

SHA-3 Hash Calculator

Generate SHA3-224, SHA3-256, SHA3-384 and SHA3-512 hashes from text.

Keccak-256 Hash CalculatorNew

Calculate Keccak-256 hashes for Ethereum from text, files, Hex, or Base64 input.

SHA-1 Hash Calculator

Calculate and verify SHA-1 hashes from text, files, Hex, or Base64 input.

MD5 Hash Calculator

Calculate and verify MD5 hashes from text, files, Hex, or Base64 input.

HMAC Generator

Generate HMAC-SHA1, SHA256, SHA384 or SHA512 signatures using a secret key.

Base64 Encoder and Decoder

Encode and decode Base64 text using this free online tool.

UUID Generator Online

Generate UUID v1 and v4 identifiers online. Create and copy multiple UUIDs easily.

Web Design & Development

CSS Gradient Generator – Free Online Tool

Create custom CSS gradients with a live preview and copy-ready CSS code.

CSS Border Radius Generator

Generate CSS border-radius values with live previews and copy-ready CSS.

Security & Passwords

Password Generator – Create Strong Random Passwords

Generate random passwords with customizable length and character sets.

Argon2id Hash Generator

Generate and verify Argon2id password hashes with configurable security parameters.

Bcrypt Hash Generator

Generate and verify bcrypt password hashes locally in your browser.

Scrypt Hash Generator

Generate and verify memory-hard scrypt password hashes locally in your browser.

Other tools:
Shopify Theme Detector: shopthemedetector.com
Essential Apps for Your Shopify Store: essential-apps.com