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Free coding certifications

Certifications that prove you can actually code.

Earn shareable, verifiable certificates by completing hands-on projects and challenges. No quizzes you can guess your way through.

START EARNING CERTIFICATES
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18 languages & topics·100% free
87,161certificates issued
79+unique certificates
18languages & topics
$0forever free

Browse all certifications

Pick a language or topic. Each journey awards a separate certificate per section, so you collect them as you progress.

PythonFrom fundamentals to OOP and data structures.JavaScriptThe language of the web — syntax, DOM, async.JavaObject-oriented foundations and core APIs.C++Memory, pointers, OOP, and the STL.HTML & CSSSemantic markup, layout, and modern CSS.C#.NET-ready OOP with collections and LINQ.SQLQuery, join, and design relational data.GoConcurrency, slices, and Go-style interfaces.RustOwnership, borrowing, and safe systems code.PHPServer-side scripting and web essentials.RubyExpressive syntax, blocks, and OOP done right.SwiftModern syntax for Apple platforms.DartThe language behind Flutter apps.RStatistical computing and data analysis.LuaLightweight scripting for games and embeds.CThe classic systems language — pointers and memory.AI PromptsPrompt engineering and AI-assisted workflows.TerminalShell, files, and command-line fluency.

How it works

Three steps from your first line of code to a certificate you can show off.

  1. 01

    Pick a journey

    Choose any language or topic and start with the first lesson — no card, no signup wall.

  2. 02

    Code through the section

    Each section is a series of hands-on lessons and challenges where you write real code that runs in your browser.

  3. 03

    Earn & share your certificate

    Finish the section to unlock a verifiable certificate with a unique ID. Add it to LinkedIn, your CV, or your portfolio in one click.

Here's what you'll receive

A clean, professional certificate of completion with your name, the section you finished, the date, and a unique verification ID — ready to share or print.

  • Personalized with your full name
  • Unique verification ID + public URL
  • High-quality PDF download
  • One-click "Add to LinkedIn" integration
certification example

Verify a certificate

Have a certificate ID? Enter it below to confirm the certificate is genuine and view it.

Frequently asked questions

How to obtain a Coddy certification?
Pick any journey on Coddy and complete a section — that is, finish every lesson and challenge inside it. As soon as you do, your certificate is generated automatically and added to your account.
Are Coddy certifications really free?
Yes — every certificate on Coddy is 100% free to earn, view, download, and share. There is no hidden paywall or subscription required to receive your certificate.
Why should you get a Coddy certification?
Stand out to employers by showcasing your hands-on coding skills. Unlike video-based certificates, a Coddy certificate proves you actually wrote and tested working code — which is what hiring managers care about. It validates your expertise, attracts recruiters, and can boost your earning potential.
How can someone verify my certificate?
Every certificate has a unique ID and a public URL. Anyone — including recruiters and employers — can paste the ID into the verification tool on this page, or open the URL directly, to confirm the certificate is genuine and see the details.
Can it be showcased on LinkedIn or an other platform?
Of course, it's easy! You are provided with a URL link, PDF format and a certification ID, you can share any of those to showcase your active certification.
How long does it take to earn one certificate?
It depends on the section and your pace. Most sections take a few hours of focused practice spread over a few days. Coddy is built around short, daily sessions, so you can fit it around school or work.
Can I earn multiple certificates?
Absolutely. Each journey is split into multiple sections, and each section issues its own certificate. You can also earn certificates across different languages and topics — many learners stack several to round out their profile.
I lost my certificate ID — what do I do?
Just sign in to your Coddy account and open this page — every certificate you've earned is listed under "My certifications" with a direct link and download button.
Coddy programming languages illustration

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