About
Learn about yuu, the developer behind Yuustudio, and the mission behind this site.
Operator
yuu
👤Profile
I'm a university student majoring in Information Engineering. I build and publish free web tools using the programming skills I've learned — React, Next.js, TypeScript, and more — to make everyday tasks easier for everyone.
🎯Mission
I value complete, work-ready tools over a large tool count. Each workflow is designed from input and processing through verification, copy, and export, with limits documented in the interface.
🔒Privacy by Design
Text and image workflows run in the browser whenever practical and avoid file uploads. Features that need communication, such as public-IP lookup, and tools that download AI models or libraries are identified separately in the interface and documentation.
🧪Quality and Maintenance
Automated tests protect conversion and analysis logic from regressions. Supported formats, capacity, and accuracy limits are kept aligned between implementation and documentation. Reproducible bug reports are investigated, and features that cannot be maintained to a useful standard are retired.
🌐Multilingual Support
Yuustudio is available in both Japanese and English, making it accessible to users worldwide. You can switch languages anytime using the toggle in the header.
⚙️Tech Stack
Release criteria, testing, data-handling categories, and correction practices are documented in our quality standards.
Read the quality standards