861 free lessons125 certification tracks

Learn to code.
Prove you can.

Strong challenges, plain-English explanations, and certificates anyone can verify with a QR scan. The rigorous path, without the gatekeeping.

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125 complete courses861 lessons · 0 practice drills · free to start
  • No signup to learn
  • Sandboxed playground
  • Verifiable certificates
Sample credentialEB-HTML-8F3K-2Q7M
edubyte.tech/playground
UTF-8 · spaces: 2
<article class="credential">
  <p class="eyebrow">EduByte · verified</p>
  <h1>Amina Rahman</h1>
  <p class="program">HTML Foundations</p>
  <button class="verify" onclick="verify()">
    Verify credential
  </button>
</article>
ResultUpdates as you code
EduByte.techSample

This certifies that

Amina Rahman

HTML Foundations

EB-HTML-8F3K-2Q7M
Awaiting verification
Challenge solvedSemantic HTML · +25 XP
What you can learn
HTML CSS JavaScript Python SQL Git Flexbox CSS Grid Responsive design Accessibility DOM Async JavaScript SQL joins Git branches TypeScript React Node.js C# C++ Java Go Rust PostgreSQL MongoDB Docker Cybersecurity Algorithms Unity AI literacy HTML CSS JavaScript Python SQL Git Flexbox CSS Grid Responsive design Accessibility DOM Async JavaScript SQL joins Git branches TypeScript React Node.js C# C++ Java Go Rust PostgreSQL MongoDB Docker Cybersecurity Algorithms Unity AI literacy
861 curatedCurated lessons you can start today
125Complete courses
0Practice drills
125Certification tracks
The EduByte method

Short lessons. Real challenges.
Proof that holds up.

Most tutorials stop at “copy this code”. EduByte is built around the gap between watching and doing — and then proves what you can do.

How we build lessons
01

Learn the why

Plain-English explanations, annotated code and no hand-waving. Every lesson opens with one specific outcome.

  • Short, focused lessons
  • Annotated real code
  • No prerequisite jargon
02

Practice under pressure

Each lesson ends with a challenge that is not a copy-paste. Hints are there when you need them; solutions are there when you are done.

  • Hands-on in the browser
  • Hints, not spoilers
  • Reference solutions
03

Prove it

Pass a timed assessment and receive a credential with a unique ID and QR code. Anyone can verify it against our registry in seconds.

  • 80% pass threshold
  • Revocable status
  • QR + public record
Inside every lesson

The explanation is short.
The challenge is the point.

We design lessons so you spend more time building than reading. Clear objective, annotated code, a live example, a knowledge check, then a challenge you cannot fake.

  • A single, measurable objective per lesson
  • Annotated code and a runnable preview
  • Instant feedback on every knowledge check
  • A challenge with hints and a reference solution
  • Progress that counts toward a certificate
Open a sample lesson HTML Foundations · Lesson 6 of 8
HTML Foundations/Module 2
14 min

Forms and inputs

Collect information with labelled, validated and accessible form controls.

By the end

Connect labels to inputs, choose the right input type and add built-in validation.

register.htmlHTML
<label for="email">Email</label>
<input id="email"
  type="email"
  required>
Challenge · Medium

Add a labelled email field with built-in validation.

Try it
5 of 8 complete
68%
Instant feedback
Certificate progress
Credentials

A certificate is only worth something if it verifies.

Every EduByte credential has an opaque public ID, an issuer-controlled record and a live status. Scan the QR or paste the ID — the verifier checks the issuer, the dates and the current state.

  • Real QR that resolves to the public record
  • Server-authorized issuance with revocable status
  • Revoked and superseded credentials clearly flagged
  • Minimal public data; holder controls visibility
Valid Revoked Expired Superseded Unknown
EduByte.tech
EduByte · Skills certificationIssued 14 Sept 2026

This certifies that

Amina Rahman

has successfully completed the assessed program

HTML Foundations

Credential IDEB-HTML-8F3K-2Q7M
Program codeEB-HTML-01
Scan to verify
www.edubyte.tech/verify/EB-HTML-8F3K-2Q7M
Sample credential · demonstration only
SampleDemonstration only

Issued by EduByte

Registry record preview · program v1.0

Public record/verify/EB-HTML-8F3K-2Q7M
Designed to stick

Built around how people actually learn.

Not a content dump. Every interaction is designed to make recall easier and self-deception harder.

Retrieval over re-reading

Knowledge checks ask you to recall, not recognise. That is what makes learning stick.

Feedback in the moment

Every quiz and challenge responds immediately, with an explanation of why the answer is right.

Spaced review

Concepts return in later lessons and exams, so you revisit them at the point of forgetting.

Real deliverables

You finish with projects and a credential, not a folder of untouched tutorial files.

The playground

Break things safely.

A real HTML, CSS and JavaScript editor with an isolated preview, console output and starter templates. No setup, no install, no shared origin.

Isolated iframe sandbox Instant preview Starter templates
Open the playground
Free to start

Your next skill starts with
one honest challenge.

Pick a course, finish the lesson, solve the challenge. When you are ready, prove it with a certificate that anyone can check.

No credit card. No signup to read a lesson.
First certificateHTML Foundations16 lessons · 1 exam · valid credential
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