Lazarus is a cross-platform, integrated development environment (IDE) for rapid application development (RAD) using the Free Pascal compiler. Its goal is to provide an easy-to-use development environment for developing with the Object Pascal language, which is as close as possible to Delphi. It is free and open-source software with different parts released under different software licenses.
Lazarus is often used to create native-code console and graphical user interface (GUI) applications for desktop computers, mobile devices, web applications, web services, visual components, and function libraries for several different operating system platforms, including macOS, Linux, and Windows.
A project created by using Lazarus on one platform can be compiled on any other one which Free Pascal compiler supports. For desktop applications, one source code can target macOS, Linux, and Windows, with little or no modification. For example, the Lazarus IDE is created from one code base and available on all major platforms including Raspberry Pi.
From the Wikipedia article “Lazarus (software)”, CC BY-SA 4.0
What is Lazarus?
Lazarus by Lazarus Team (developed by Mattias Gärtner) is proprietary Windows software in the ides & code editors category. It ranks 45th by popularity among ides & code editors in this catalogue. The first release dates back to 2001. It is written in Object Pascal and Pascal. Besides Windows, it is available for Unix-like operating system and cross-platform software. Its interface is available in 4 languages.
Installation and requirements
The publisher provides EXE (Inno Setup) installers for 64-bit and 32-bit Windows. The main installer is 222.1 MB. A silent install is possible with the installer’s documented switches.
Updates and version history
The current version is 4.8, released on June 6, 2026. The version history goes back to September 29, 2024: 7 releases, all linked to the official files. That is about 4.2 releases a year.
Popularity and file types
The Chocolatey package has been downloaded 34,804 times. Wikipedia has an article about it in 29 of our languages. Similar programs include RStudio, OpenCode and Node.js (LTS).
Pros / Cons
Pros
- Documented silent install
- Also runs on Unix-like operating system and cross-platform software
- Mature project (since 2001)
Cons
- Proprietary licence: check the terms and price
- No native ARM64 build
In short: Lazarus is an ides & code editor tool for 64-bit and 32-bit PCs. It is actively maintained. Administrators can deploy it unattended.
Screenshots
Is Lazarus safe to download?
- The file is served by sourceforge.net, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
ED25EE171D55E23CF14E0633159FDD2325EFBA56E186F8AB817AD3BF97D267D7· Open the VirusTotal report for this hash - The link answered when we last checked it (October 22, 2026)
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 7 versions ›7 versions over 2 years · about 4.2 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 4.8Latest | June 6, 2026 | 222.1 MB | 64-bit EXE (Inno Setup)32-bit EXE (Inno Setup) |
| 4.6 | February 21, 2026 | 222.1 MB | 64-bit EXE (Inno Setup)32-bit EXE (Inno Setup) |
| 4.4 | November 13, 2025 | 222.0 MB | 64-bit EXE (Inno Setup)32-bit EXE (Inno Setup) |
| 4.2 | July 19, 2025 | 222.0 MB | 64-bit EXE (Inno Setup)32-bit EXE (Inno Setup) |
| 4.0 | May 3, 2025 | 221.9 MB | 64-bit EXE (Inno Setup)32-bit EXE (Inno Setup) |
| 3.8 | February 6, 2025 | 214.1 MB | 32-bit EXE (Inno Setup)64-bit EXE (Inno Setup) |
| 3.6 | September 29, 2024 | 214.2 MB | 64-bit EXE (Inno Setup) |
Install from the command line
Silent install ›winget install --id Lazarus.Lazarus -echoco install lazarus -yscoop install extras/lazarusdownload /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-Related guide: How to use winget: install and update apps
Information
- Publisher
- Lazarus Team
- Developer
- Mattias Gärtner
- Category
- IDEs & code editors
- Licence
- Proprietary
- Price
- See the publisher’s site
- Source code
- gitlab.com
- Written in
- Object Pascal and Pascal
- Interface languages
- English, French, multiple languages, and Russian
- Requires
- Windows 11 / 10
- Architecture
- 64-bit, 32-bit
- Installer
- EXE (Inno Setup)
- Other platforms
- Unix-like operating system, cross-platform software
- Version
- 4.8
- Released
- June 6, 2026
- First release
- 2001
- Added to the catalogue
- October 6, 2024
- Versions listed
- 7
- Updates / year
- 4.2
- Chocolatey downloads
- 34,804
- Website
- lazarus-ide.org
- winget ID
- Lazarus.Lazarus
- Chocolatey package
- lazarus
- Scoop package
- extras/lazarus
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is Lazarus free?
Lazarus is proprietary (closed-source) software (licence: Proprietary). Whether it costs money depends on the edition: check the publisher’s site for prices and free tiers.
Is Lazarus safe to download?
The download comes from sourceforge.net, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Lazarus with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can Lazarus be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does Lazarus run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit and 32-bit version through emulation.
Where can I download an older version of Lazarus?
The versions page lists all 7 versions with links to their official installer files, back to September 29, 2024.
What are alternatives to Lazarus?
RStudio, OpenCode, Node.js (LTS), Apache NetBeans and VSCodium. The alternatives page compares them.
