Kuest AI

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Learn web development 10x faster with AI

HTML, CSS, JavaScript and React basics. Paste your code and Kuest helps you see why the layout breaks or the state won't update.

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4.87on iOS13,917,000+students already study with Kuest

topics
10
Core languages
HTML, CSS, JavaScript
Covers
Front-end basics and React
Leads to
Full-stack and front-end development

See how Kuest teaches it

It asks before it tells, so you do the thinking and it sticks.

You: My button runs the function as soon as the page loads: button.addEventListener("click", showMenu());
Kuest: Look at showMenu() with the parentheses. What does JavaScript do when it sees a function name followed by ()?
You: It calls the function.
Kuest: Right, and it calls it right there, while adding the listener. What does addEventListener actually want as its second argument?
You: The function itself, so it can call it later. So addEventListener("click", showMenu) without the parentheses.
Kuest: Exactly. Pass the function, don't call it. The same idea applies in React with onClick={showMenu}.

Event listeners need a reference to a function; adding () calls it immediately instead.

Students who lock in with Kuest

students
13,917,000+
App Store rating
4.87
countries
100+

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    “I stopped copying answers and started actually getting it. My chem grade went from a C to an A in one semester.”

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  • 3 hours → 40 minutes

    “My notes turn into a quiz in seconds. What used to take me all night now takes one episode of a show.”

    Sophomore, California

  • Finally ready for the SAT

    “The plan told me exactly what to do each day. I walked in calm for the first time ever.”

    Senior, New York

  • It never lets me skip a step

    “Annoying at first, lifesaver on test day. I could do every problem without it.”

    Freshman, Ohio

  • Better than my tutor

    “It's there at midnight, it's patient, and it costs less than one session with my old tutor.”

    College freshman, Florida

  • My streak is at 94 days

    “The quests are ten minutes. I do them on the bus. Somehow I'm now the one explaining bio to my friends.”

    Junior, Illinois

  • Spanish finally clicked

    “Talking out loud with the tutor fixed my pronunciation faster than a whole year of class.”

    Sophomore, Arizona

  • Found my gaps in one night

    “The gap check showed me I'd never understood moles. Fixed it in 15 minutes.”

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  • Parent here: no more 9pm meltdowns

    “My son gets real help without me pretending I remember calculus, and I can see his progress every week.”

    Parent, Washington

The method

How to study Web development with Kuest

Web development clicks when you can predict what the browser will do with your code before you refresh. Build small pages, change one property at a time, and explain why the result changed. Mixing HTML, CSS and JavaScript practice beats studying each in isolation.

  1. Paste your code and what you seeTutor chat

    Share the HTML, CSS or component and describe what the browser shows. Kuest asks what you expected and helps you narrow down the cause.

  2. Snap a screenshotSnap a photo

    Take a screenshot of a broken layout or console error and Kuest starts from exactly what you're seeing.

  3. Draw the box model and layoutTeaching board

    Kuest sketches boxes, flex axes and the component tree on the teaching board so layout and data flow become visible.

  4. Predict the resultQuizzes

    Quizzes show a CSS rule or a React snippet and ask what renders, which builds the intuition you need for debugging.

  5. Remember properties and hooksFlashcards

    Spaced flashcards for flexbox properties, semantic tags, array methods and React hooks keep the details fresh.

  6. Follow a planStudy plan

    Set a goal, like a portfolio site by a date, and Kuest builds a week-by-week plan from HTML to React.

What you'll cover

Tap a topic to learn it now.

  1. 01HTML structure and semanticsBuild pages with headings, lists, links, forms and semantic tags like main and nav.
  2. 02CSS selectors and the cascadeTarget elements with selectors and predict which rule wins by specificity.
  3. 03The box modelControl size and spacing with content, padding, border and margin.
  4. 04Flexbox and GridLay out rows, columns and full pages with flexbox and CSS Grid.
  5. 05Responsive designAdapt layouts to phones and desktops with media queries and relative units.
  6. 06JavaScript and the DOMSelect elements, change content and respond to clicks with event listeners.
  7. 07Fetching dataCall APIs with fetch, handle JSON and use async/await without losing errors.
  8. 08React components and propsSplit a UI into components and pass data down with props.
  9. 09State and effects in ReactUpdate the UI with useState and run side effects with useEffect.
  10. 10Accessibility basicsUse labels, alt text, focus order and contrast so everyone can use your page.

Try asking

Tap a question and Kuest starts teaching it, step by step.

Helps you prepare for

  • AP Computer Science Principles
  • Intro to web development courses
  • Coding bootcamps
  • Front-end interviews

A month of Kuest costs less than one hour with a tutor

Same patience, any hour, every subject. Or stay on the free plan for good.

Private tutor

$40–80for one hour

  • Booked days in advance
  • One subject per session
  • Stops when the hour ends

Kuest Plus

$10a month, billed yearly

  • Every subject and exam on this site
  • Any hour, as long as you need
  • Quizzes, flashcards, podcasts and mock exams

Study on any device

Phone, tablet or laptop. Your chats, plans and flashcards come with you.

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Questions, answered

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