Lazarus
Lazarus: A capable, no-cost IDE for Free Pascal and Delphi-compatible application development. Ranked #25 of 65 in Integrated Development Environments by our editors (6.8/10); pricing: Free plan; best for free Pascal and Delphi-compatible projects.
At a glance
- Editor score6.8 / 10
- PricingFree plan
- Best forFree Pascal and Delphi-compatible projects
- Free planYes
- Paid fromFree
- Founded1999
- Facts checked20 Sep 2026
Where it wins
- Visual drag-and-drop form design with Free Pascal editing
- Integrated builds, debugging, testing, navigation, and refactoring
- Runs on Windows, macOS, and Linux with Delphi compatibility support
Where it doesn't
- Its focus is narrower than IDEs supporting multiple programming languages
- The verified integration list is empty
- There are no paid tiers for organizations seeking commercial plans
Our verdict on Lazarus
Lazarus is a free, open-source integrated development environment for Free Pascal and Delphi-compatible projects. It targets developers building console, graphical, database, game, and other applications across Windows, macOS, and Linux. Its visual form designer supports rapid application development, while the source editor provides syntax highlighting and code completion. The product can also be used for commercial and non-commercial software.
The development workflow covers more than editing: Lazarus includes an integrated build system, debugger, project testing workflow, code navigation, and refactoring tools. Its package system supports third-party extensions, and the platform includes database frameworks, reporting, charting, and networking libraries. Delphi code conversion and compatibility support make it a practical fit for projects that need to work with Delphi-oriented code or development patterns. The combination is strongest for teams that want a focused Pascal environment with visual application design rather than a broad, multi-language IDE.
Lazarus is distributed as open-source software, so its pricing model is straightforward: the product is free, with no paid tiers to compare. That makes it suitable for individuals, teams, and organizations that prefer an open development tool and can work within its Pascal-centered ecosystem. The main trade-off is scope. Lazarus is best chosen for Free Pascal and Delphi-compatible work on supported desktop platforms; teams seeking a wider language ecosystem, a populated integration catalog, or commercial plan structures should consider a different IDE.
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Lazarus pricing
Lazarus fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Supported operating systems | Not verified |
| Integrated debugger | Yes |
| Integrated testing tools | Yes |
| Build tools | Yes |
| Project management | Not verified |
| Dev container support | Not verified |
| Deployment | Desktop |
| Platforms | Windows, macOS, Linux |
| Support | Community, Docs |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Pricing | Free plan |
| Website | lazarus-ide.org |
| Facts checked | 20 Sep 2026 |
Alternatives to Lazarus
- IntelliJ IDEAA full-featured, cross-platform IDE for Java and Kotlin teams.9.4
- Visual StudioA full-featured Windows IDE for .NET and C++ teams with broad tooling.9.3
- PyCharmA full-featured Python IDE with strong testing, debugging, data, and remote workflows.9.2
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Also Ranked In
Lazarus is ranked in 5 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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