無料オンラインランダムカラージェネレーター

Yes, the ランダムカラージェネレーター on Allio Tools is completely free with no sign-up or registration required. It works directly in your browser.

HEXとRGB値を含むランダムな色を生成します。 No data is sent to a server — everything runs locally in your browser for maximum privacy and speed.

No installation needed. The ランダムカラージェネレーター runs entirely in your web browser on any device — desktop, tablet, or mobile.

Completely safe. The ランダムカラージェネレーター processes everything locally in your browser. No input data, results, or usage information is ever transmitted to or stored on any server.

After the page loads for the first time, the ランダムカラージェネレーター works without an internet connection for all client-side processing. Tools that fetch live external data (such as DNS or network lookups) require an active connection.

Yes. The ランダムカラージェネレーター uses your browser's built-in cryptographically seeded random number generator, which provides high-quality unpredictable randomness suitable for games and fair decisions.

Yes. Where customisation options are available, you can add your own items, set numeric ranges, or adjust parameters before generating. Default settings are designed for the most common use case so you can get an instant result without any configuration.

Yes. The ランダムカラージェネレーター is built with standard browser APIs and works on all modern browsers including Chrome, Firefox, Safari, and Edge — on both desktop and mobile. No plugins, extensions, or third-party software are required.

Select and copy the result text to paste into any document or app. For image tools, a Download button saves the file directly to your device. Your browser's built-in screenshot function also captures results quickly. No account or login is required.