SQL is one of the most essential skills for data analysts, BI professionals, and anyone working with data. But reading syntax isn’t enough, you need hands-on practice to master queries, joins, aggregations, and real data analysis logic.
Luckily, there are plenty of free online platforms where you can sharpen your SQL skills; no setup, no downloads, and many with interactive editors. Below are the top free websites to practice SQL in 2026.
1. SQL Practice Online
This is one of the best places to get started because it offers 60+ interactive SQL exercises you can run right in your browser with no signup required. You’ll practice real queries on databases like HR, e-commerce, and school systems, and get instant results.
Why it’s great:
- Completely free with no registration
- Covers beginner to advanced topics
- Real-world scenarios and interview-style problems
Ideal for: Beginners and interview prep.
2. SQLSandboxes
SQLSandboxes offers a browser-based SQL editor where you can practice using real datasets from domains like e-commerce and user behavior. It also includes interview prep challenges based on real company questions.
Why it’s great:
- Practice cases based on real business contexts
- Interview-style prompts
- No environment setup
Ideal for: Intermediate learners and data analysts prepping for interviews.
3. SQL Practice Platform (Practice-SQL.com)
This site provides an online SQL terminal with practice challenges segmented by difficulty.From basic SELECTs and WHERE filters to joins, subqueries, and more advanced tasks. You can start practicing immediately with no registration.
Why it’s great:
- Structured by difficulty level
- No account required
- Beginner → advanced options
Ideal for: Progressive practice and skill building.
4. SQL Campus
SQL Campus offers interactive SQL practice with instant feedback in your browser. While it also has guided lessons, you can jump straight into the practice sandbox to test queries and write your own SQL code.
Why it’s great:
- Browser-based SQL execution
- Helpful examples with visuals
- Great for beginners just learning query logic
Ideal for: Learners who want guided practice with explanations.
5. Additional Free Tools & Editors to Practice SQL
These aren’t always structured exercise platforms, but they’re great for experimenting with queries and testing logic:
- SQL Fiddle & DB Fiddle – Browser-based SQL editors that let you type and run SQL queries on custom schemas. This is great for testing and learning syntax.
- Codecademy Learn SQL (Free Tier) – A popular interactive platform that teaches SQL basics with code exercises (some free modules).
- SQLBolt & SQLZoo – Community favorites with step-by-step lessons and interactive queries (often recommended in user discussions about free SQL practice).
How to Get the Most Out of Free SQL Practice
Start with the basics: Focus on SELECT, WHERE, ORDER BY, and simple joins before moving to advanced topics.
Mix platforms: Use structured exercise platforms (like SQL Practice Online) and open editors (like SQL Fiddle) to test solutions and explore logic.
Practice daily: Even 15–30 minutes a day will dramatically improve your confidence with real SQL queries.
FAQs
1. Are these SQL practice tools really free?
Yes, the platforms listed above let you write and test SQL without paying or entering a credit card.
2. Do I need to install anything?
No, most are browser-based and let you practice SQL without installing a database or software.
3. Which platform is best for beginners?
SQL Practice Online and SQLCampus are excellent for beginners due to interactive exercises and instant feedback.
4. Can these sites help with SQL interview prep?
Yes, SQLSandboxes and many of the free practice sites include real-world scenarios and interview-style problems to prepare you for job tests.
5. Are there free SQL lessons too?
Absolutely. Sites like SQLBolt, SQLZoo, and Codecademy include free lessons alongside practice editors for hands-on learning.