Lazarus

Rapid applications development tool and libraries for FPC

Brought to you by: mgaertner, mhess, user4martin, vlx, vsnijders

159 Reviews

Downloads: 18,073 This Week

Last Update: 5 hours ago

Download

Get an email when there's a new version of Lazarus

Linux BSD Mac Windows

The Lazarus IDE is a stable and feature rich visual programming environment for the FreePascal Compiler. It supports the creation of self-standing graphical and console applications and runs on Linux, FreeBSD, MacOSX and Windows.

Project Samples

Lazarus IDE 2.1 running under Linux/gtk2

Project Activity

See All Activity >

License

GNU Library or Lesser General Public License version 2.0 (LGPLv2)

Follow Lazarus

Lazarus Web Site

Other Useful Business Software

Accounting Software Built for Owners, and Their Clients

Make invoicing and billing painless for your small business with FreshBooks.

Balancing your books, client relationships, and business isn’t easy. FreshBooks gives you the info and time you need to focus on your big picture—your business, team, and clients.

Learn More

Rate This Project

User Ratings

4.8 out of 5 stars

★★★★★

★★★★

★★★

★★

★

147

ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5

features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5

design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5

support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5

User Reviews

Filter Reviews:

All

bbbabvbg Edited 2026-05-23

Best too for rapid programming
neuts-jl Posted 2025-12-01

It's a shame that more people don't use this software; for me, it's the Rolls Royce of programming tools.
masterwok Posted 2025-11-19

Nice program, Easy to use

1 user found this review helpful.
gitnerdpuerta Posted 2025-09-24

One of the best on its field!

1 user found this review helpful.
giturox Posted 2025-08-30

Lazarus is an excellent ide for the powerful modern language FreePascal (FPC). Pascal is both easy to write and hase good performance. Freepascal has through the years added the very useful generics, managed variable arrays, extended records, interfaces etc. With version 4 of the IDE, the developers have enabled a docked approach and made it stable. The editor syntax completion feature is really amazing and better than most of the stuff i have tried for Rust. (BTW: rust and pascal share so many features, but i personally think Pascal has a so much better syntax than Rust. But of course your mileage may vary). This is my fourth decade coding in Pascal and the language just keeps getting better without sacrificing simplicity. Keep up the amazing work!

1 user found this review helpful.

Additional Project Details

Awards

Operating Systems

BSD, Fink, FreeBSD, Linux, Mac, NetBSD, OpenBSD, Windows, Windows IoT

Languages

Brazilian Portuguese, Chinese (Simplified), Dutch, English, Finnish, French, German, Indonesian, Italian, Japanese, Polish, Russian, Spanish, Ukrainian

Intended Audience

Developers, Education

User Interface

Carbon (Mac OS X), Win32 (MS Windows), X Window System (X11)

Programming Language

Delphi/Kylix, Free Pascal, Lazarus, Object Pascal, Pascal

Related Categories

Pascal Integrated Development Environments (IDE), Pascal Build Tools, Pascal Code Generators, Pascal Debuggers, Delphi/Kylix Integrated Development Environments (IDE), Delphi/Kylix Build Tools, Delphi/Kylix Code Generators, Delphi/Kylix Debuggers, Object Pascal Integrated Development Environments (IDE), Object Pascal Build Tools, Object Pascal Code Generators, Object Pascal Debuggers, Lazarus Integrated Development Environments (IDE), Lazarus Build Tools, Lazarus Code Generators, Lazarus Debuggers, Free Pascal Integrated Development Environments (IDE), Free Pascal Build Tools, Free Pascal Code Generators, Free Pascal Debuggers

Registered

2003-09-03

Similar Business Software

DbVisualizer

DbVisualizer is a universal database client for anyone who works with data, from solo developers and startups to professional teams managing complex environments, including developers, DBAs, analysts, and data engineers working with relational and NoSQL databases. It offers a graphical interface...

See Software
Devin Desktop

Devin Desktop (formerly Windsurf) is an AI-powered development environment that combines a full-featured IDE with advanced coding agents in a unified workspace. Formerly known as Windsurf, the platform enables developers to manage local and cloud-based AI agents, delegate tasks, review code, and...

See Software
JetBrains Junie

Junie is an AI-powered coding agent developed by JetBrains designed to enhance developer productivity by integrating directly into popular IDEs such as IntelliJ IDEA, PyCharm, and Android Studio. It supports developers by assisting with code completion, testing, and inspections, ensuring code...

See Software
Bitrise

Bitrise is a CI/CD platform built for mobile development, helping teams speed up builds, automate testing, and deliver high-quality apps faster. It supports native languages like Swift, Objective-C, Java, and Kotlin, as well as cross-platform frameworks including React Native, Flutter, Xamarin,...

See Software
Retool

Retool is an AI-powered platform that enables teams to build internal software, agents, and workflows faster using natural language and composable building blocks. It allows users to go from a simple prompt to a fully deployed application that works with their existing data, systems, and...

See Software
Google AI Studio

Google AI Studio is a unified development platform that helps teams explore, build, and deploy applications using Google’s most advanced AI models, including Gemini 3.5. It brings text, image, audio, and video models together in one interactive playground. With vibe coding, developers can use...

See Software

Report inappropriate content

Accounting Software Built for Owners, and Their Clients

Make invoicing and billing painless for your small business with FreshBooks.

Balancing your books, client relationships, and business isn’t easy. FreshBooks gives you the info and time you need to focus on your big picture—your business, team, and clients.

Learn More

Recommended Projects

BVRDE
A fully integrated development environment (IDE) for remote cross-pla
Lazarus Code and Component Repository
Lazarus is a free and open source development tool for the Free Pascal Compiler. The purpose of this project is to serve as a Code Repository, Wiki Knowledgebase and support site for converting existing components and libraries to work with Lazarus and the Free Pascal Compiler.
LuaEdit
LuaEdit is an IDE/Text Editor/Debugger for the Lua language. Its interface looks like MS Visual Studio .Net� and includes syntax highlighting, code completion, advance breakpoint management, efficient search engines, etc. Client under GPL and server (core debugger) under LGPL.
macOS FPC + Lazarus daily snapshots
Daily macOS FPC + Lazarus snapshots (Cocoa - 64 bit - Intel and ARM64)
JasmineIDE
Java IDE, project support, build, debugger, grep.