The Best Online ECG Courses, Free and Paid (2026)
By the DecodeMed Team6 min read
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The best free way to learn ECG online is to combine a structured set of real tracings, such as the DecodeMed ECG Atlas, with the free LITFL ECG Library. If you want a paid video course, Medmastery is the most complete for students and ECG Weekly is the step up for emergency medicine.
What to look for in an ECG course
- A clear order: waves and intervals first, then rhythms, blocks, hypertrophy and ischaemia.
- Real 12-lead tracings, not only drawings.
- Practice with answers after every unit.
- Time you can keep up: short daily lessons beat a long course you never finish.
The best online ECG courses
01DecodeMed ECG Atlas
Best for: a course built on real tracings
Organised in units from the normal ECG to arrhythmias, bundle branch blocks and infarction patterns, with real 12-lead tracings for each lesson. The Teaching view marks what changes and lists the criteria; the Plain view hides it so you can test yourself.
02LITFL ECG Library
Best for: the free reference and case series
Free pages on almost every ECG finding, plus case-based series to test yourself. Written by emergency physicians.
03Medmastery
Best for: a complete paid video course
Short video courses from ECG basics to advanced interpretation, with practice tracings. In English.
04ECG Weekly
Best for: advanced weekly cases
Weekly case videos on emergency ECGs. Best once you master the basics. Paid.
05Osmosis
Best for: short animated videos
Animated videos on the waves, the axis and common arrhythmias, part of a paid medical video platform.
06EKG.Academy
Best for: free beginner lessons
Free lessons with rhythm-strip drills for complete beginners.
Free or paid?
| Course | Format | Cost |
|---|---|---|
| DecodeMed ECG Atlas | Real tracings in units | Web |
| LITFL ECG Library | Text, examples, case series | Free |
| EKG.Academy | Lessons and rhythm drills | Free |
| Osmosis | Animated videos | Paid subscription |
| Medmastery | Video courses with tracings | Paid |
| ECG Weekly | Weekly case videos | Paid |
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A four-week plan
- Week 1: waves, intervals and the paper. Read 10 normal ECGs.
- Week 2: rate, rhythm and axis; sinus rhythms, atrial fibrillation and flutter.
- Week 3: AV blocks and bundle branch blocks.
- Week 4: ischaemia and infarction by territory, then mixed cases every day.
The method behind the plan is in how to learn ECG from scratch; books to go with it in the best ECG books.
Frequently asked questions
Is there a free online ECG course?
Yes. The LITFL ECG Library and EKG.Academy are free, and the DecodeMed ECG Atlas teaches each pattern on real tracings on the web.
What is the best paid ECG course?
Medmastery is the most complete for students; ECG Weekly suits those who already read ECGs and want emergency cases.
How long does an ECG course take?
The basics take about four weeks of daily practice; recognising every pattern with confidence takes months of regular tracings.
DecodeMed and its app, RadioAnato AI, are our own product, so weigh what we say about them accordingly. We have no affiliate or commercial relationship with the other tools listed.
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