Lazarus Icon


Rapid applications development tool and libraries for FPC

4.9 Stars (109)
7,883 Downloads (This Week)
Last Update:
Browse All Files
Windows BSD Mac Linux



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.

Lazarus Web Site


Other Useful Business Software

Protect your Network & Cloud Assets with USM Anywhere Icon

Discover a better way to detect & respond to threats before they impact your business with AlienVault USM Anywhere.

Protect your Network & Cloud Assets with USM Anywhere Icon
AlienVault® Unified Security Management™ (USM™) is an innovative approach to security monitoring, delivered in a unified platform. The USM platform includes five essential security capabilities that provide resource-constrained organizations with everything they need for effective threat detection, incident response, and compliance management, in a single pane of glass.

User Ratings

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
Write a Review

User Reviews

  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Lazarus has some fine points when it comes to using a single platform version. But its cross compiling capabilities are poorly documented and just are not worth the effort, no matter how you try to build a cross platform executable, even on Windows 32.64. It would appear the authors either don't test the same code they post, or have not done a clean install for quite some time. If you install Lazarus on Windows 64, it is impossible to build a Win32 executable. If you look at Free Pascal, the compiler engine, you will notice the compiler installs in \lazarus\fpc within lazarus, and in \FPC within free pascal. If you use the fpclazupd program, the fpc compiler installs into \development\fpc and lazarus installs into \development\lazarus. Too many inconsisteices, too many poorly or undocumented features. Just not worth the bother. Too bad for such a nice product. Wiki is out of date and little information on web. Those five star ratings must be from the authors, people who don't cross compile, or friends of the authors. Cross compilers get an F- for useability.

    Posted 07/14/2016
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Aweful!!! this program proclaims write once compile anywhere. I have kept trying several projects and each one has been SO difficult to compile on even 32/64 bit windows that I just gave up each time in favor of a PROPER IDE. PGSQL and Lazarus is like pulling teeth from the very beginning. I honestly don't know why you would favor this to mono/python for cross development. Any one who says this is better than VS needs a head check! Worst IDE Ever!

    Posted 06/26/2012
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    It's ok, but buggy on Ubuntu 11 and a little old fashioned. I wrote a fairly detailed review on my blog and although I personally like Lazarus it doesn't really stack up against something like monodevelop :(

    Posted 11/14/2011
Read more reviews

Additional Project Details

Intended Audience

Developers, Education

Programming Language

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



Thanks for helping keep SourceForge clean.

Screenshot instructions:
Red Hat Linux   Ubuntu

Click URL instructions:
Right-click on ad, choose "Copy Link", then paste here →
(This may not be possible with some types of ads)

More information about our ad policies

Briefly describe the problem (required):

Upload screenshot of ad (required):
Select a file, or drag & drop file here.

Please provide the ad click URL, if possible:

Get latest updates about Open Source Projects, Conferences and News.

Sign up for the SourceForge newsletter:

JavaScript is required for this form.

No, thanks