Free SAT prep.
- practice questions, each with a worked explanation
- skills covered, the same ones the digital SAT tests
- questions in every mock test, timed at 2 h 14 min
- for all of it, with no trial and no paid plan
- $0
Question bank
One bank for every skill on the test
Sorted the way the digital SAT is sorted: two sections, eight domains, 29 skills. Pick one skill and drill it, or mix a whole domain.
Math
2,848 questions
- Algebra900
5 skills
- Advanced Math522
3 skills
- Problem-Solving and Data Analysis933
7 skills
- Geometry and Trigonometry493
4 skills
Reading and Writing
354 questions
- Information and Ideas108
3 skills
- Craft and Structure39
3 skills
- Expression of Ideas69
2 skills
- Standard English Conventions138
2 skills
Three difficulty levels
- Easy
- 1,079
- Medium
- 1,159
- Hard
- 964
Any equivalent answer counts
- 0.5 Correct
- .5 Correct
- 1/2 Correct
Math answers are computed by the program, so type-in questions accept every equivalent form.
Live question
Answer one right now
These three come straight from the bank. Pick an answer and you get what every question gives you:
- Marked the moment you answer
- A step-by-step explanation, right or wrong
- No account, no email
Math, Problem-Solving and Data Analysis
Question 1 of 3
Medium difficulty
Mock tests
Sit the full test before test day
98 questions in 2 h 14 min, timed, with two modules per section. Module 2 adapts to how you did on module 1, just like test day.
Reading and Writing
Module 1
32:00
27 questions
Reading and Writing
Module 2
32:00
27 questions, adaptive
Math
Module 1
35:00
22 questions
Math
Module 2
35:00
22 questions, adaptive
How it works
1
Take a baseline test
Start with a full-length adaptive mock test to see where you stand in every domain.
2
Practice your weak spots
Your dashboard points you to the skills that will raise your score fastest. Drill them in focused sets.
3
Review and repeat
Revisit every mistake with a full explanation, then retest to see your score climb.
Free account
Sign up and it keeps track for you
You can practice from the question bank right away. A free account saves your progress and adds four tools.
- Systems of two linear equations in two variablesRetry
- PercentagesRetry
- TransitionsRetry
Mistake review
Every question you miss is saved automatically. Retry them until they stick.
Example estimate
Math, 650
Reading and Writing, 620
Predicted score
See an estimated score that updates as you practice, with a breakdown by section and domain.
ambiguous
adj.
open to more than one interpretation; unclear
Vocabulary flashcards
High-value words with clear definitions and example sentences. Track what you've mastered.
Today, Math
Problem-Solving and Data Analysis
Today, Reading and Writing
Command of Evidence
Daily questions and streaks
Two fresh questions every day keep your skills sharp and your streak alive.
Made by CodeStarters
ScholarSAT is a CodeStarters tool, built by CodeStarters, a student-led nonprofit that makes computer science and AI accessible to every young student.
FAQ
Questions, answered
Is ScholarSAT really free?
Yes. Every question, every practice test, and every feature is free, with no trial and no premium tier. The project is open source, so anyone can read the code and run their own copy.
Are these official College Board questions?
No. ScholarSAT's questions are written and generated for this project, following the published structure of the digital SAT: the same domains, skills, and question formats. For official material, we link straight to College Board's free Bluebook tests and question bank.
How are the math answers checked?
Every math question is built from parameters, and its answer is computed by the program rather than typed by hand. Type-in answers accept any equivalent form, so 0.5, .5, and 1/2 are all marked correct.
How accurate is the predicted score?
It's an estimate based on your accuracy across ScholarSAT questions and mock tests, weighted by difficulty. Use it to track direction and progress, and use official Bluebook tests for the most realistic benchmark.
Do I need an account?
No. You can practice from the question bank right away. A free account adds progress tracking, saved questions, mistake review, and full-length practice tests.
Who runs ScholarSAT?
ScholarSAT is a CodeStarters tool, made by CodeStarters (codestarters.org), a student-led nonprofit that makes computer science and AI accessible to every young student. It is open source, built on the belief that high-quality test prep shouldn't cost hundreds of dollars, and contributions are welcome on GitHub.