A free online puzzle game collection with 40 classic brain teasers, including logic, number, and pattern-filling games for all ages.

Create visually appealing knowledge cards from your Markdown content. Perfect for students, educators, and content creators who want their notes and documents to be more engaging and shareable.

AI-powered OC Maker lets you create unique original characters from scratch and instantly transform your ideas into stunning artwork.

Ricoh Global Official Website: Empowering individuals through innovative solutions and sustainable practices for a fulfilling work experience.

Generate realistic celebrity images from text prompts using AI. Create photos of any celebrity in any scene or style, no design skills needed.

Qiita is a knowledge sharing and collaboration platform for programmers, offering articles, tips, and community features to enhance coding skills.

Zenn is a community for engineers to share knowledge about technology and development, offering books and reader badges for compensation.