Scrimba

Scrimba: the coding course you can interrupt

Scrimba is an interactive coding-education platform built around a format it invented: the "scrim," a screencast you can pause at any moment to edit and run the instructor's actual code in the built-in editor. Watching becomes doing mid-sentence — the single biggest complaint about video courses, solved structurally. Founded in Oslo in 2017 by Per Harald Borgen, Sindre Aarsæther, and Magnus Holm (a Y Combinator alum), Scrimba has passed one million learners.

Its flagship Frontend Developer Career Path (~82 hours across HTML, CSS, JavaScript, React, APIs, accessibility, Git, and getting hired) carries a distinction no rival has: it is the officially recommended course partner of Mozilla's MDN, with 1,000+ scrims reviewed by MDN and aligned to the MDN Curriculum.

Key Features

• Scrim format: pause any lesson and instantly edit and run the instructor's code
• Frontend Developer Career Path reviewed by and aligned with Mozilla's MDN Curriculum
• 70+ courses across frontend, full-stack, and AI engineering paths
• AI-powered instant feedback on coding challenges
• Solo projects and completion certificates
• 80,000+ member Discord community; regional purchasing-power discounts

Ideal Use Case

A beginner aiming at a frontend job who learns best by touching the code constantly — and wants a single vetted path rather than assembling a curriculum from YouTube. The free tier includes full intro courses; Pro is $20/month or $150/year (about $13/month), roughly half the price of Frontend Masters.

How Scrimba differentiates

Udemy-style platforms deliver passive video; scrims hand you the instructor's editor at any timestamp. freeCodeCamp is free but self-serve; Scrimba adds an instructor-led narrative with Mozilla's endorsement — unique among paid platforms. Frontend Masters targets intermediate and advanced engineers at $390/year; Scrimba covers beginner-to-hired at $150. Production credibility: 1M+ learners, Y Combinator backing, and MDN's ongoing formal review of its flagship path.

FAQ

How much does Scrimba cost? Pro is $20/month or $150/year, with regional purchasing-power-parity discounts; the free tier includes complete intro courses like Learn HTML & CSS.

What makes a scrim different from a video? You can pause at any point, edit the instructor's code in place, run it, and resume — the lesson is a live coding environment, not a recording.

Is Scrimba really endorsed by MDN? Yes — Mozilla's MDN names Scrimba its recommended course partner, and its Frontend Career Path teaches the MDN Curriculum Core with MDN review.

Does Scrimba work on mobile? It is web-only; the interactive editor needs a browser and keyboard.

tl;dr

Scrimba turned coding courses into editable live environments and earned Mozilla MDN's official recommendation for its Frontend Career Path — the strongest interactive option for beginner frontend developers at $20/month.

Related

Looking for more options? Browse the Education & Learning directory or read our best AI education tools listicle. Scrimba is also tracked on Crunchbase.