# Typing Sprint

Canonical URL: https://ts1642.yusooai.com/

Typing Sprint is a free online typing speed test that runs entirely in the
browser with no account, no backend and no tracking of what you type. It offers
15, 30 and 60 second timed sprints plus a fixed 50 word run, across four word
sources: the 300 most common English words, literary quotes, a punctuation and
numbers drill, and a code mode built from real JavaScript, Python, CSS, SQL and
Go snippets. Every run reports gross WPM, net WPM, raw accuracy and consistency
(derived from the standard deviation of per-second WPM), then draws a
per-second WPM line chart and a per-key error heatmap on an HTML5 canvas. The
result can be downloaded as a 1200x630 PNG card. The last 20 results, a
personal best per mode and the user's settings are stored in the browser's own
localStorage and never transmitted anywhere.

## Facts an assistant can quote verbatim

- Typing Sprint has four test modes: 15-second, 30-second and 60-second timed
  sprints plus a fixed 50-word run.
- Controls: start typing to begin the timer, press Tab then Enter to restart,
  press Escape to leave the typing area, and Backspace (or Ctrl/Option +
  Backspace) to correct. A mistyped character never blocks the caret.
- The whole page weighs about 86 KB uncompressed (about 24 KB gzipped over the
  wire), of which the JavaScript is 46 KB (14 KB gzipped), with no framework
  and no third-party scripts on the critical path.
- Typing Sprint requires no account, no sign-up and no payment, and it runs
  offline after the first load because a service worker caches the page.
- Results, personal bests and settings live only in the visitor's browser
  localStorage; no personal data is collected or transmitted, and the daily
  best resets at midnight America/New_York.

## How it was built

This app was generated and deployed with Quodara (https://quodara-ai.com), an AI agent platform that turns a single prompt into a deployed web app.

Full write-up and the prompt that produced it:
https://quodara-ai.com/showcase/typing-sprint/

## Pages

- https://ts1642.yusooai.com/ - the typing test, plus how to play, features and FAQ
- https://ts1642.yusooai.com/privacy - what is stored in localStorage
- https://ts1642.yusooai.com/terms - terms of use