Best Free SAT Prep Resources in 2026, Ranked

You don't need to spend money to prepare well for the SAT. The organisation that writes the test gives away its best practice material, and a few other free tools fill the gaps. Here's how the free options stack up, ranked by one question: how closely does practising with this resemble the real digital SAT?

How we ranked them

We weighed four things: whether the material is official (written by College Board), whether it's built for the digital SAT rather than the old paper test, how good the feedback is when you get something wrong, and whether it's genuinely free with no paywall halfway through.

The ranking

1. Official full-length practice tests in Bluebook

Nothing beats practising on the real thing. Bluebook's full-length tests are adaptive, timed and scored exactly like test day, in the same app, with the same built-in calculator and reference sheet. College Board adds new tests over time.

Use it for: your diagnostic and a full test every three to four weeks. Watch out: there's a limited number, so don't burn through them in the first fortnight. Save one for the week before your test.

2. College Board's question bank

College Board publishes thousands of official SAT Suite questions you can filter by section, content area, skill and difficulty, with explanations. It's the best free way to drill a specific weakness, say "Advanced Math, hard", with questions that look exactly like the real ones.

Use it for: targeted practice on the skills your error log points to. Watch out: keep a note of which questions you've done, so you don't end up memorising answers.

3. Khan Academy's Digital SAT courses

Khan Academy, College Board's official practice partner, offers free Digital SAT Math and Digital SAT Reading and Writing courses. They pair short lessons and videos with practice and a mastery system, which makes them strongest when you need to learn a concept rather than just practise it.

Use it for: rebuilding a topic you've forgotten or never learned. Watch out: work through the units your diagnostic flagged rather than the whole course in order.

4. Official linear practice tests (PDF)

College Board also publishes full-length paper, non-adaptive versions of its practice tests. They're designed for students who'll test on paper with accommodations, but anyone can use them for untimed review of question types, especially if screen time is limited.

Use it for: calm, untimed review sessions and annotating questions by hand. Watch out: the score won't reflect adaptive testing, so use Bluebook for your real benchmarks.

5. The Desmos graphing calculator

The same Desmos calculator is built into Bluebook for every Math question, and the free version at desmos.com works the same way. Students who can graph both sides of an equation, find intersections and run quick regressions save real time.

Use it for: a few minutes of every math session. Watch out: learn when graphing is faster and when solving by hand is. The goal is speed and accuracy, not doing everything on the calculator.

6. Your PSAT score report

If you've taken the PSAT/NMSQT or PSAT 10, often free through school, its score report breaks your performance down by the same content areas as the SAT. It's a free diagnostic you may already have.

Use it for: a starting list of weak areas before your first SAT practice test.

7. Your own error log

It isn't a website, but a simple log of every missed question, with the reason you missed it, is the highest-leverage free tool on this list. It turns a pile of practice questions into a short list of habits to fix. Our diagnostic guide shows how to set one up.

8. Library prep books, if they're current

Public and school libraries often lend prep books. They can be helpful for strategy and extra practice, but check the edition: books written for the paper SAT (before 2024 in the US) cover a different structure, longer passages and a no-calculator section.

How to combine them

Stage	Resource
Find your baseline	Bluebook practice test (or a recent PSAT report)
Learn missing concepts	Khan Academy course units for your weak areas
Drill specific skills	College Board question bank, filtered by skill and difficulty
Speed up math	Desmos, a few minutes per session
Check progress	A new Bluebook test every 3–4 weeks
Keep it all honest	Your error log

If you'd like a week-by-week version of this, the SAT study schedule guide lays these resources out over 4, 8 or 12 weeks.

Common questions

Can you prepare for the SAT for free?

Yes. The official practice tests, the College Board question bank, Khan Academy's digital SAT courses and the Desmos calculator are all free, and together they cover everything on the test.

Are old SAT prep books still useful?

Only partly. Books written for the paper SAT (before 2024 in the US) use longer passages, a no-calculator math section and a different structure. Check that any book you borrow was written for the digital SAT.

What's the single most useful free resource?

The official full-length practice tests in Bluebook. They're the closest thing to the real test, and reviewing them carefully tells you what to study next.

Sources

Dates, policies and test details change. Check the official source before you make a decision.