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Practice Apex in your Developer org
Write Apex and run it in your Developer org. Pattern drills are graded in the browser. The first two modules are free.
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Your first drill takes about 5 minutes and needs no Salesforce org. The first two modules (36 drills) are free.
- Practice Apex against your own Developer org
- Job-shaped drills you submit and grade
- XP, path progress, and which drills you passed
- Pattern drills in the browser; org drills in Salesforce
The Apex Path: 98 drills in 9 modules
- Write Apex (26 drills, beginner, free). Variables, numbers, text, dates, if and switch, loops, Lists, Sets and Maps. Your Apex foundation.
- Think in classes (10 drills, beginner, free). Classes, constructors, methods, access modifiers, exceptions and enums.
- Query the org (SOQL) (15 drills, intermediate). SOQL and SOSL: filters, bind variables, relationships, aggregates, date literals and safe dynamic queries.
- Change records (DML) (9 drills, intermediate). Insert, update, upsert and delete, Database methods, save results, savepoints and bulk-safe DML.
- Prove it with tests (10 drills, intermediate). Apex test classes that fail when the code is wrong: assertions, test data, mocks and callout mocks.
- Automate with triggers (10 drills, intermediate). Before and after triggers, handler classes, bulk patterns, recursion guards and roll-ups.
- Work in the background (6 drills, advanced). Future methods, Queueable, Batch and Schedulable Apex.
- Debug it (8 drills, intermediate). Fix real production bugs: queries and DML in loops, null checks, recursion, mixed DML, empty tests and batch state.
- Ship it safely (4 drills, advanced). Governor limits, security and the habits that survive a production deploy.
Trailhead teaches. ApexSensei drills.
Trailhead teaches the platform. ApexSensei is where you write the Apex and run it.
| Trailhead | ApexSensei | |
|---|---|---|
| Where you run Apex | Modules and quizzes | Your Developer org, or in the browser for pattern drills |
| Practice | Modules and quizzes. | Job-shaped drills you submit and grade |
| Progress | Badges along a trail | XP, path progress, and which drills you passed |
| Roles | Teaches the platform | Drills what you just learned |
Practice the Apex you will write at work.
Run Apex in your Developer org
Org-graded drills compile and execute in Salesforce. Pattern drills grade in the browser. Production orgs are blocked.
Job-shaped drills, not toy examples
Triggers, classes, and bulk patterns: the same shapes you write on the job, submitted and graded.
See what you have actually passed
XP, path progress, and which drills you finished. Write Apex and Think in classes are free to Check and Run.
Questions people ask
What is ApexSensei?
ApexSensei is a practice site for Salesforce Apex. You work through 98 short drills in 9 modules, from your first variable to triggers, tests and async Apex. Most drills run in your own free Salesforce Developer org, so you practice on the real platform.
Is ApexSensei free?
Yes, to start. The Write Apex and Think in classes modules (36 drills) are free to check and run. Every other drill is free to read. Apex Path unlocks checking and running the other seven modules for $19 a month after a 7-day free trial.
Do I need a Salesforce org?
Not for your first drill. It runs in the browser and takes about 5 minutes. After that, drills run in a free Salesforce Developer org that you connect to ApexSensei. You can sign up for one at developer.salesforce.com.
Can ApexSensei touch my company's production org?
No. ApexSensei blocks production orgs. Connect a Developer org that you use only for practice.
How is ApexSensei different from Trailhead?
Trailhead teaches the platform with modules and quizzes. ApexSensei is where you practice. You write the Apex yourself, run it in your org, and every drill is checked automatically. Many people use both: learn a topic on Trailhead, then drill it here.
How long does a drill take?
Between 5 and 25 minutes. Most take about 15.
Who built ApexSensei?
Firus Hanov, a Salesforce developer with more than 8 years of enterprise experience and the author of Learning Apex: The Complete Developer's Guide for Salesforce Admins.
Start on the free modules
Check and Run is free on Write Apex and Think in classes. Apex Path covers the other seven modules for $19 a month after a 7-day trial.