Class Central

Find the best courses on almost any subject, wherever they exist.

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We've put together a massive list of online courses that offer free certificates or badges. The list includes courses from providers such as Google, Microsoft, Coursera, Harvard, and freeCodeCamp.

https://t.co/ibBvDte3CJ

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Stanford, Yale, Penn, Dartmouth, Brown — 600+ free medical courses and webinars with free certificates. CME credit included for healthcare professionals.

Open to everyone, not just clinicians.

https://t.co/lDr0gL2jzk

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280+ free digital marketing certificates from Google, Hubspot, Semrrush, etc. We didn't just compile the list. We signed up, worked through the material, and earned the certificates ourselves to confirm they're actually free and the credentials are real:

https://t.co/lnCb7tLBPc

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Learn Pandas with the best online courses for 2026:

Interactive (DataCamp) https://t.co/Q7O5gPL7a7

Beginner (Duke University) https://t.co/dUGD0vVBWh

Project-Based (Codecademy) https://t.co/3WJy6kM2D8

More: https://t.co/qQmOuNOqIW

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Learn GSAP the free way. We picked 5 courses and resources, from the official docs to a hands-on build with React and Tailwind. Find your starting point:

https://t.co/4hrQf7kV3A

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Explore the best Psychology online courses:

Intro to Psychology (Yale) https://t.co/47k9lxebko

Science of Well-Being (Yale) https://t.co/YD49EhDYbS

Social Psychology (Wesleyan) https://t.co/ceM2BnrTVD

More: https://t.co/GJA6GWPLgz

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Learn typed endpoints, validation, dbs, auth, testing, and deploy w/ the best FastAPI courses:

Comprehensive (Eric Roby/Chad Darby) https://t.co/5eR6NnsSYN

Path (Pluralsight) https://t.co/9Hsz4ZKRch

Interactive (DataCamp) https://t.co/MYzpPGuqSP

More: https://t.co/Z8nLnWn1Cu

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Learn CBT (Cognitive Behavior Therapy) with the best online courses:

Beginners (University of Reading) https://t.co/dmrT1Xg98j

Comprehensive (The Great Courses Plus) https://t.co/be74ZFVCiD

Choosing Therapy (UC Santa Cruz) https://t.co/5vrlVbPK8y

More: https://t.co/81ME6L6jaM

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Most people who start online courses never finish them.

Here are 32 hacks for actually finishing online courses, from the Pomodoro Technique to accountability partners to cranking up the playback speed.

https://t.co/IccpjR2N2w

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Want to learn Mandarin? Here are the best courses:

Beginners (Peking University) https://t.co/gYu9rKSMIQ

HSK 1 (Peking University) https://t.co/AXRg07UCFx

Multi-Level Path (Shanghai Jiao Tong University) https://t.co/4g0JZb3B0K

More: https://t.co/F8yeNankjC

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Elixir rewards devs who push into concurrency and fault tolerance. Here are the best courses:

Comprehensive (Elixir School) https://t.co/jlDfHkBmW6

OTP (The Pragmatic Studio) https://t.co/EGOcCCiN4L

Hands-On (CodeSignal) https://t.co/bp9i9q9v9M

More: https://t.co/LrN3F7t2V4

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Stanford, MIT, Duke, and 140+ other universities just launched 1,100+ online courses in the past six months.

STEM, business, AI, health, creative, and more. Full list here:

https://t.co/LjxF0cKolV

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From writing components to adding Next.js/TypeScript, there is a React course here for you:

Full Stack Open (Helsinki) https://t.co/ksbfmjxPOD

Comprehensive (Jonas Schmedtmann) https://t.co/6EMDyRufvq

Interactive (Scrimba) https://t.co/zNm08is0f7

More: https://t.co/j6TEDaTPsf

[Class Central @classcentral]

Explore the best Psychology online courses:

Intro to Psychology (Yale) https://t.co/47k9lxebko

Science of Well-Being (Yale) https://t.co/YD49EhDYbS

Social Psychology (Wesleyan) https://t.co/ceM2BnrTVD

More: https://t.co/GJA6GWPLgz

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We picked 8 courses that teach the math ML actually needs: linear algebra, calculus, probability.

Free lectures and paid specializations for all levels:

https://t.co/RiGMGjYRsY

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Stanford Medicine offers free courses, webinars, and podcasts, with free certificates for everyone, and CME credit for healthcare professionals.

No paywall. Open to the public.

https://t.co/ffdyKhcbum

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Ready to improve your productivity?

Whether you’re a beginner or looking to master advanced features for your task/project management system, we’ve got you covered with the best Notion courses for 2026.

https://t.co/QtZcZ7hDTk

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Learn routing, templates, databases, APIs, and deployment w/ the best Flask courses:

The Flask Mega-Tutorial (Miguel Grinberg) https://t.co/Oub2W1F95t

Interactive Hyperskill) https://t.co/xrOYla0Q3E

Beginners (Harvard) https://t.co/g46P6ExgUP

More: https://t.co/tiSnKJMRkW

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30+ of the best apps to learn Korean in 2026, organized by what they’re actually for: from Hangul and flashcards to tutors, K-dramas, and TOPIK.

FREE & paid options: https://t.co/DZ67D2Nxt2

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The Open University has been making education accessible since 1969. Their free platform, OpenLearn, now offers 900+ courses, each with a free certificate.

Arts, science, health, business, tech, and more. No fees, no deadlines.

https://t.co/pRXnHmrC4a

[Class Central @classcentral]

Here are the best business english online courses for non-natives:

Phone, Meetings, Presentations & More (Udemy) https://t.co/FshyawQ8yM

Speaking Confidence (Talaera) https://t.co/jCFTlbQSWJ

Conversational Phrases (Udemy) https://t.co/Cz4FrDqxzU

More: https://t.co/6qpLgVUNxC