Supercool

Ultra-low latency real-time and historical market data API, supporting WebSocket and REST

Free, ad-free, locally run all-in-one online toolkit, the ultimate productivity booster for office work and development tasks.

Translate financial news into A-share stock codes

Local-first AI skills manager — your skills stay plain files

Free tools for indie makers: backlinks, readiness, llms.txt

A curated collection of fun and practical tools spanning games, audio-visual resources, development tools, and game-changing efficiency solutions. Slacking off is nice, but boosting your productivity is even better.