Create QR codes from any text or URL instantly. Perfect for sharing links and information.
Generate and download QR codes for quick connections to WiFi networks.
Generate random string with the chars you want, uppercase or lowercase letters, numbers and/or symbols.
Generate placeholder text for your mockups and designs with customizable length.
Encode and decode Base64 strings quickly and easily in your browser.
Convert JSON to TypeScript interfaces instantly with proper type inference and clean formatting.
Compress and optimize images. Reduce file size, resize dimensions, and convert formats instantly.
Test your password security and get instant feedback on password strength.
Fetch and visualize JSON API responses with interactive tree view. Test APIs with custom headers.
World clock and timezone converter. View time across multiple cities with day/night indicators.
Calculate Indonesian tax (PPN, PPh 21, 22, 23) with ease. Get instant tax results for your transactions.
Calculate memory allocation for your server based on the number of users and concurrent connections.
Convert colors between HEX, RGB, HSL, and HSV formats with color picker and live preview.
Convert between decimal and Roman numerals with ease.
Convert text between different cases (e.g., camelCase, PascalCase, snake_case).
Calculate and convert chmod permissions (file system permissions) to decimal and symbolic representations.
Parse and decode JSON Web Tokens (JWT) to view claims, expiration, and other metadata.
Generate cron expressions for scheduled tasks. Set time, frequency, and repeat patterns easily.
Encrypt clear text and decrypt ciphertext using crypto algorithms like AES, TripleDES, Rabbit or RC4.
Convert between different length units (e.g., meters, feet, inches, yards).
Convert between different currency units (e.g., USD, EUR, GBP, JPY).
Calculate age based on birthdate.
View and edit HTML code in real-time with live updates.
Compress and reduce Excel file size (.xlsx, .xls) directly in your browser. No upload to server, 100% private.