HeidiSQL

Name: HeidiSQL
Brand: HeidiSQL

Free, open-source SQL client for managing MySQL, MariaDB, PostgreSQL, SQL Server, and more.

softwareDatabasesdatabase-clientsql-editoropen-source

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Our Verdict

Best for

Developers who want a free, fast SQL GUI for MySQL/MariaDB without installing a heavyweight IDE.

Skip if

You need built-in ER diagramming or deep NoSQL support alongside SQL databases.

What is HeidiSQL?

HeidiSQL is a free and open-source database management tool created in 2002 that lets developers and DBAs connect to and administer MySQL, MariaDB, Microsoft SQL Server, PostgreSQL, SQLite, and Firebird/Interbase servers through a single lightweight interface. It combines a visual table/data editor with a full SQL query console, supporting SSH tunnels, SSL connections, batch data import/export in formats like CSV and JSON, and user privilege management, making it a popular free alternative to phpMyAdmin and paid database GUIs.

SpecificationsAI-estimated

deploymentDesktop App

open source✅ Yes

api available❌ No

support optionsCommunity forum and GitHub issue tracker

key integrationsMySQL, MariaDB, PostgreSQL, Microsoft SQL Server, SQLite, Firebird, Redshift

Key Features of HeidiSQL

Connects simultaneously to MariaDB, MySQL, Microsoft SQL Server, PostgreSQL, SQLite, and Firebird/Interbase databases from one session.

Provides a visual grid editor for browsing and editing table data without writing SQL.

Includes a SQL query console with syntax highlighting, auto-completion, and query history.

Supports SSH tunneling and SSL for securely connecting to remote database servers.

Lets users import and export data in CSV, HTML, XML, JSON, SQL, and LaTeX formats.

Offers batch operations for running the same maintenance task across multiple tables at once.

Includes a user manager for creating and editing database accounts and privileges.

Ships native builds for Windows, Linux (Debian, RPM, ARM64), and macOS.

Use Cases for HeidiSQL

Local development database management

Developers browse and edit MySQL or MariaDB tables during local app development without leaving a GUI.

Remote server administration

DBAs connect over SSH tunnels to manage production database servers securely from a desktop client.

Data migration and exports

Teams export query results or whole tables to CSV, JSON, or SQL dump files for migration or backup.

Learning SQL

Students and new developers use the visual editor and query console to practice SQL against real databases.

Pros & Cons of HeidiSQL

Pros

Completely free with no paid tier or nagware
Lightweight and fast compared to heavier IDEs like DBeaver or MySQL Workbench
Actively maintained with frequent releases since 2002
Native builds for Windows, Linux, and macOS rather than just a Java wrapper

Cons

Interface looks dated compared to modern database tools
No built-in ER diagram designer or schema visualization
Best MySQL/MariaDB support; other engines like PostgreSQL get comparatively fewer features

Frequently Asked Questions

Is HeidiSQL really free?

Yes, HeidiSQL is free and open-source software with no paid version, subscription, or license fee.

Which databases does HeidiSQL support?

MariaDB, MySQL, Microsoft SQL Server, PostgreSQL, SQLite, Firebird/Interbase, and Amazon Redshift.

Does HeidiSQL run on Mac and Linux?

Yes, in addition to the primary Windows build, HeidiSQL ships native Linux packages (Debian, RPM, ARM64) and a macOS arm64 app.

Can HeidiSQL connect to remote databases securely?

Yes, it supports SSH tunneling and SSL/TLS encrypted connections for remote servers.

Pricing Overview

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Free

Detailed plans are not listed. Visit the official website for pricing information.

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