RKツールボックス

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RK Toolbox is an app that brings together tools useful for everyday calculations and text processing. No account registration or login is required. All functions are available offline. ■ Calculator: Supports addition, subtraction, multiplication, division, and calculations using parentheses. ■ Unit Conversion: Convert units of length, weight, and temperature. Enter a number and the conversion result will be displayed. ■ Password Generator: Generates random passwords of 8 to 64 characters. You can choose to use uppercase letters, lowercase letters, numbers, and symbols, and copy the generated result. ■ Text Processing: Converts between uppercase and lowercase letters, reverses strings, and checks character count, word count, and line count. ■ Encoding/Hash: Supports Base64 encoding/decoding and SHA-256 hash calculation. The processing result can be copied. ■ Offline Use: No ads or analytics features. The app does not collect or transmit entered text, calculations, or generated passwords. Content copied is saved to the device's clipboard. Note on use: Base64 is not encryption. Please store the generated password properly using a trusted password management app or similar.