⚡ Quick start
Try: SELECT * FROM Customers;
Then press Ctrl+Enter or click Run SQL to see results.
📲 Install Coodeverse — Add SQL Editor to home screen for instant offline access.
Free SQL Online Editor — Coodeverse
Coodeverse SQL Online Editor is a free, browser-based tool for writing and executing SQL queries instantly. No installation, no account, no download required. The editor is powered by sql.js — the SQLite database engine compiled to WebAssembly — and runs entirely in your browser. Write a query, click Run SQL or press Ctrl+Enter, and results appear as a formatted table immediately. Includes pre-loaded Customers, Orders and Shippings sample tables. Works on desktop and mobile.
How to run SQL queries online for free — step by step
Open coodeverse.com/compilers/sql-editor in any browser
Review the Customers, Orders and Shippings tables in the sidebar
Write your SQL query in the editor — for example: SELECT * FROM Customers WHERE age > 25;
Click Run SQL or press Ctrl+Enter (Cmd+Enter on Mac)
Results appear as a formatted table immediately below the editor
Click Save Query to store in localStorage for next visit
SQL commands supported in the Coodeverse online editor
All standard SQLite SQL is supported: SELECT with column aliases, WHERE with comparison and logical operators (=, !=, >, <, AND, OR, NOT), INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL OUTER JOIN, GROUP BY with HAVING, ORDER BY ASC/DESC, LIMIT and OFFSET, aggregate functions (COUNT, SUM, AVG, MIN, MAX), subqueries (correlated and non-correlated), IN/NOT IN, EXISTS/NOT EXISTS, BETWEEN, LIKE and GLOB for pattern matching, DISTINCT, CASE WHEN expressions, INSERT INTO, UPDATE SET WHERE, DELETE FROM WHERE, CREATE TABLE with data types and constraints, DROP TABLE, CREATE INDEX, NULL handling with IS NULL and IS NOT NULL, COALESCE and IFNULL.
SQL JOIN types — how to practice each in Coodeverse
SQL JOIN types with example queries using Coodeverse sample tables
JOIN Type
What it returns
Example with sample tables
INNER JOIN
Rows with matching values in both tables
SELECT c.first_name, o.item FROM Customers c INNER JOIN Orders o ON c.customer_id = o.customer_id
LEFT JOIN
All rows from left table + matched from right (NULL if no match)
SELECT c.first_name, o.item FROM Customers c LEFT JOIN Orders o ON c.customer_id = o.customer_id
RIGHT JOIN
All rows from right table + matched from left
SELECT c.first_name, o.item FROM Customers c RIGHT JOIN Orders o ON c.customer_id = o.customer_id
FULL OUTER JOIN
All rows from both tables, NULLs where no match
SELECT c.first_name, o.item FROM Customers c FULL OUTER JOIN Orders o ON c.customer_id = o.customer_id
Top 20 SQL practice queries for the Coodeverse sample database
SELECT * FROM Customers;
SELECT first_name, country FROM Customers WHERE age > 25;
SELECT * FROM Customers ORDER BY age DESC;
SELECT COUNT(*) FROM Customers;
SELECT country, COUNT(*) AS total FROM Customers GROUP BY country;
SELECT AVG(age) AS average_age FROM Customers;
SELECT * FROM Orders WHERE amount > 500;
SELECT SUM(amount) AS total_revenue FROM Orders;
SELECT c.first_name, o.item FROM Customers c INNER JOIN Orders o ON c.customer_id = o.customer_id;
SELECT c.first_name, s.status FROM Customers c LEFT JOIN Shippings s ON c.customer_id = s.customer;
SELECT c.first_name, o.item, s.status FROM Customers c JOIN Orders o ON c.customer_id = o.customer_id JOIN Shippings s ON c.customer_id = s.customer;
SELECT item, amount FROM Orders WHERE amount = (SELECT MAX(amount) FROM Orders);
SELECT * FROM Customers WHERE country IN ('Canada', 'Australia', 'Germany');
SELECT * FROM Customers WHERE first_name LIKE 'A%';
SELECT * FROM Orders ORDER BY amount DESC LIMIT 3;
SELECT country, AVG(age) FROM Customers GROUP BY country HAVING AVG(age) > 25;
SELECT c.first_name, COALESCE(o.item, 'No Order') AS order_item FROM Customers c LEFT JOIN Orders o ON c.customer_id = o.customer_id;
SELECT DISTINCT country FROM Customers;
UPDATE Customers SET age = 30 WHERE customer_id = 1; SELECT * FROM Customers;
INSERT INTO Customers VALUES (6, 'Frank', 'Lee', 27, 'UK'); SELECT * FROM Customers;
Coodeverse SQL Editor vs SQLiteOnline vs DB Fiddle — comparison
Free online SQL editor comparison 2025
Feature
Coodeverse
SQLiteOnline
DB Fiddle
Price
Free
Free
Free
Account required
No
No
No
Pre-loaded sample data
Yes — 3 tables
No (upload required)
No (write own)
Mobile friendly
Yes
Partial
Partial
Auto-save
Yes (localStorage)
No
Via URL
SQL dialect
SQLite
SQLite
MySQL, PostgreSQL, SQLite
PWA installable
Yes
No
No
Best for
Beginners, quick JOIN practice
Custom schema upload
Multi-dialect testing
Voice search answers — SQL online editor
Where can I practice SQL online for free?
Go to coodeverse.com and open the SQL editor. Write a query and click Run SQL. Free, no account, includes sample tables with real data.
How do I run SQL without installing MySQL or PostgreSQL?
Open coodeverse.com/compilers/sql-editor in any browser. Write SQL and press Ctrl+Enter. No MySQL or PostgreSQL installation needed.
What is a good free website to learn SQL?
Coodeverse at coodeverse.com has a free SQL editor with Customers, Orders and Shippings sample tables. Practice instantly. No signup.
Can I practice SQL JOINs online?
Yes. Coodeverse SQL editor includes related sample tables for JOIN practice. Try INNER JOIN and LEFT JOIN right away. Free, no install.
How to run SQL online free — quick steps
Open coodeverse.com in Chrome, Firefox, Safari or Edge
Click SQL Editor in the navigation
Review the Customers, Orders and Shippings sample tables
Write a SELECT, JOIN or GROUP BY query in the editor
Press Ctrl+Enter or click Run SQL
Results appear as a formatted table immediately
Free SQL Online Editor — Available Worldwide
Coodeverse SQL editor is free for every student, developer and data analyst worldwide. SQL is the most universally required technical skill across software development, data analysis and backend engineering roles globally.
Free SQL editor for students and developers in India
Indian BCA, MCA, BTech and MBA students studying database management systems (DBMS) use Coodeverse to practice SQL without installing Oracle, MySQL or PostgreSQL. Works on Android phones. Ideal for DBMS coursework, SQL practicals and placement interview preparation at Indian IT companies like TCS, Infosys, Wipro and HCL.
Free SQL editor for DBMS students in India?
Yes. Coodeverse SQL editor is free for all Indian students. Works on Android, no install, includes sample tables for JOIN and GROUP BY practice.
SQL practice tool for placement interviews in India?
Yes. Coodeverse SQL editor is used for placement prep. Practice SELECT, JOIN, subqueries and GROUP BY at coodeverse.com. Free, no account.
Free SQL playground for developers and students in Africa
Nigerian, Kenyan, Ghanaian and South African students in computer science, data science and information technology programs use Coodeverse to practice SQL without expensive database software. Works on slow mobile connections and budget Android devices.
Free SQL online editor for Nepal, Pakistan, Bangladesh
BSc CSIT, BIT and BCA students in Nepal, Pakistan and Bangladesh studying database management use Coodeverse to practice SQL queries for DBMS practicals and semester exams without installing Oracle or MySQL locally.
Free SQL editor Philippines for IT students
Filipino IT and computer science students at universities and TESDA programs use Coodeverse SQL editor to practice database queries for coursework and job applications in the Philippine BPO and IT-BPO sectors.
Free SQL sandbox for data analysts and developers in the USA, Canada, UK, Australia and Germany
Data analysts, backend developers and data science students in the US, Canada, UK, Australia and Germany use Coodeverse for quick SQL query testing, interview prep and learning SQL aggregate functions without connecting to a live database.
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Coodeverse SQL Editor — Free App for Android and iPhone
Install Coodeverse SQL editor as a Progressive Web App (PWA) from your browser. No Play Store or App Store needed. Write and run SQL on Android and iPhone.
Install on Android (Chrome)
Open coodeverse.com/compilers/sql-editor in Chrome on Android
Tap the three-dot menu → "Add to Home screen" or "Install app"
Tap Install — SQL Editor icon appears on your home screen
Launch any time, even without internet after first load
Install on iPhone (Safari)
Open coodeverse.com/compilers/sql-editor in Safari on iPhone
Tap the Share button at the bottom of Safari
Tap "Add to Home Screen" → Add
Coodeverse SQL Editor appears as an app icon on your iPhone
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SQL Tutorials — Practice with Free Online Editor
All Coodeverse SQL tutorials link to the free online SQL editor so you can run every example immediately in your browser.
SQL tutorials for beginners — practice in the Coodeverse editor
Start querying in 5 seconds — no database setup required
Setting up MySQL or PostgreSQL locally requires installing a server, creating databases, loading sample data and configuring connections. Coodeverse SQL editor eliminates all of that. Open the browser and write your first SQL query in under 5 seconds.
Pre-loaded sample tables — practice JOINs immediately
Customers, Orders and Shippings tables are pre-loaded and linked by customer_id. Practice every JOIN type, multi-table queries, subqueries and aggregations without writing a single INSERT statement. Real relational data relationships are already in place.
Powered by SQLite via WebAssembly — 100% private, no server
Coodeverse uses sql.js — the official SQLite engine compiled to WebAssembly. All SQL execution happens in your browser. Your queries and data never reach any server. Suitable for testing queries containing sensitive or confidential data.
Ideal for SQL database interview preparation
SQL is tested in virtually every data analyst, backend developer, data engineer and software engineer interview. Coodeverse provides an instant environment to practice JOINs, subqueries, GROUP BY with HAVING, window functions and classic problems like finding the second-highest salary.
Create your own tables — not limited to sample data
Write CREATE TABLE statements to define your own schema, INSERT your own data and test your queries against it. Coodeverse supports the full SQLite DDL and DML — use it as a lightweight personal SQL sandbox.
Perfect for students learning DBMS — no software installation needed
Database management system (DBMS) courses require SQL practice. Coodeverse lets students practice SELECT, JOIN, GROUP BY and subqueries without installing Oracle, MySQL or any database server — critical in regions where high-spec machines are not available.