Things to click, turn and listen to.
Small tools I use myself, all in the browser.
Separate apps I built, each on its own site.
Reading I go back to, and how this site is measured and changed.
Explore
Practice English, 中文, and code — with live speed, accuracy and consistency. Your history stays in your browser.
02 · Pick a passage
English best
—
中文 best
Code best
Finish a run to start tracking your speed.