Fulin Labs

Fulin Labs is Giovanni Fu Lin's independent software studio for language learning, link management, and creator publishing tools.

Every project below is a live, working product. Pick one to try it, or read the blog for build notes on how they’re made.

Start with a result

Don’t browse the portfolio. Get one small win.

Each path opens ready to use, needs no account, and takes about a minute.

A free spaced repetition app for learning vocabulary.

Best for: Language learners who want a fast, focused way to build and retain vocabulary

A free Chinese reading app for any text.

Best for: Learners of Chinese who want a low-pressure, daily habit for building reading skills

Shorten, organize, and monitor links with safety checks.

Best for: Developers and marketers who need managed short links with real usage data and destination safety checks

Upload once, schedule everywhere.

Best for: Creators and small teams publishing short-form video across multiple platforms

One balance for the tools your agent calls.

Best for: Developers who want their AI agent to call third-party tools and APIs without managing a key for each provider

A photo of your price list becomes your AI receptionist.

Best for: Owners of spas and massage shops who take bookings by chat and serve customers in several languages

Small, free tools for Chinese text, flashcard planning, links, and video. They run in your browser and need no account.