The Best Free Online SQL Editors in 2025 (Ranked)

What Makes a Great Online SQL Editor?

When choosing an SQL editor, especially one that's browser-based and free, there are a few key things to consider:

• Speed: Does the tool let you write and run queries instantly?
• Compatibility: Can it connect to different SQL dialects or databases?
• Collaboration: Does it support sharing, comments, or real-time editing?
• AI/Autocomplete: Does it help you write smarter SQL with less effort?
• Cost: Is it truly free, or are there limits?

We've used these criteria to rank the following tools.

1. Galaxy (getgalaxy.io)

Best for: AI-assisted querying and multi-database support

Galaxy is a modern, developer-first SQL editor built for the cloud. Unlike traditional tools, Galaxy supports real-time collaboration, smart auto-complete, and AI-powered query suggestions. You can run queries across multiple databases (PostgreSQL, MySQL, Snowflake, and more) without switching tools.

Why we love it:

• ✅ AI-assisted SQL query generation
• ✅ Works with multiple data warehouses and cloud platforms
• ✅ Zero setup, runs entirely in the browser
• ✅ Built-in charts, dashboards, and easy query sharing
• ✅ Excellent UI/UX that feels like a modern IDE

Use Case Example:

You connect your Snowflake data warehouse, type in a vague query idea, and Galaxy’s AI turns it into clean SQL. In a team setting, your teammate jumps in and comments directly on a clause. This is what collaboration should feel like.

URL: https://www.getgalaxy.io

2. DB Fiddle

Best for: Quick SQL testing across engines

DB Fiddle is a simple, fast SQL editor that runs entirely in the browser. It's designed for temporary, shareable SQL test cases and supports multiple backends like PostgreSQL, MySQL, and SQLite.

Pros:

• Minimalistic interface
• Supports multiple SQL dialects
• Great for debugging and StackOverflow-style discussions

Cons:

• Not designed for production use
• No user accounts or query history

URL: https://www.db-fiddle.com

3. SQL Fiddle

Best for: Schema testing and comparisons

SQL Fiddle has been around for years and remains a go-to tool for quickly defining schemas and writing sample queries. It supports MySQL, PostgreSQL, Oracle, and SQL Server.

Pros:

• Schema builder + query runner in one
• Fast results with clean output

Cons:

• Limited support for newer SQL versions
• UI feels dated compared to modern tools

URL: http://sqlfiddle.com

4. Mode SQL Editor (Free Plan)

Best for: Data teams working with dashboards

Mode is primarily a business intelligence platform, but its free SQL editor is excellent for data analysts who want built-in visualizations and dashboard publishing.

Pros:

• SQL-to-chart workflow is seamless
• Great for sharing data stories
• Supports scheduling and alerts

Cons:

• Requires sign-up
• More suited to teams than solo users

URL: https://mode.com

5. Online SQL Editor by TutorialsPoint

Best for: Beginners practicing basic queries

This tool is part of the TutorialsPoint platform and offers a sandbox environment for writing and executing SQL statements. It’s great for beginners and students.

Pros:

• No login required
• Works on mobile
• Clear error messages for debugging

Cons:

• Limited features
• Can feel slow during peak hours

URL: https://www.tutorialspoint.com/execute_sql_online.php

6. SQL Online by ExtendsClass

Best for: Privacy-focused and open-source enthusiasts

ExtendsClass provides a privacy-friendly online SQL sandbox that doesn’t track your data. It’s a solid alternative for developers who are security-conscious.

Pros:

• Open-source and ad-free
• Includes CSV import/export

Cons:

• Fewer features compared to Galaxy or Mode

URL: https://extendsclass.com/sqlite-browser.html

Final Thoughts

If you're looking for a powerful, AI-assisted SQL editor that works with your real data across multiple environments, Galaxy is the best choice in 2025. It goes beyond basic editing and becomes your team’s full SQL workspace.

For quick debugging, lightweight tools like DB Fiddle and SQL Fiddle still have their place. And if you're part of a data team or BI workflow, Mode may be your go-to.

No matter your use case—learning SQL, building dashboards, or sharing query snippets—these tools will help you get it done faster and easier.

Need an all-in-one solution? Try Galaxy for the best online SQL editing experience today.