Scilab is free, open-source software for numerical computation, scientific programming, visualization, and simulation. It includes the Xcos graphical modeling environment.
The assessment reflects documented numerical and simulation tools, cross-platform downloads, a free GPLv2 distribution, and public G2 reviews. Scilab's optional AI coding assistant requires a separately installed agent and account.
This profile combines documented product information and independent evidence where available. It is not a hands-on test unless TechZella explicitly identifies one.
Scilab is a free, open-source environment for numerical computation and scientific programming. Its capabilities include numerical analysis, data visualization, algorithm development, and application development.
Xcos, distributed with Scilab, provides a graphical workspace for modeling and simulating dynamic systems. Scilab also supports extensions through the ATOMS toolbox repository and C/C++ interfaces for integration with native applications.
The 2027.0.0 release adds a web-based SciNotes editor with debugging tools and an AI assistant. The assistant depends on a separately installed external agent; Scilab does not include an AI model.
A quick way to understand who this product may suit, where its limits matter, and which facts are most relevant before you compare alternatives.
Students, researchers, and engineering teams needing a free desktop environment for numerical analysis, algorithm development, plotting, or dynamic-system simulation.
Teams that require vendor-published support prices, a managed cloud deployment, or an AI assistant with a bundled model and included AI subscription, and should evaluate alternatives such as GNU Octave or MATLAB instead.
Linux, macOS, Windows
8.4/10
These are the product-specific differences that may matter when deciding whether the software fits your workflow. They are based on documented evidence rather than a universal ranking.
These are documented constraints or practical friction points that may matter before you adopt the product.
Buyers should account for the agent's separate setup and account or API requirements; agent providers may process requests on their servers.
Evidence source ↗Users on managed networks may need IT assistance before they can install extensions through the package manager.
Evidence source ↗Organizations pinned to older releases should review the impact of lacking ongoing maintenance before standardizing on them.
Evidence source ↗Free downloadable software under GPLv2. Optional professional support and services are available; public rates were not found.
Check current pricing →Pricing may change. Verify current plans on the vendor's website.
Compare similar products directly, then see which alternatives may make more sense when your requirements differ.
| Decision factor | Scilab | GNU Octave | MATLAB |
|---|---|---|---|
| License and pricing | Free download under GPLv2. | Freely redistributable software under the GNU GPL. Source ↗ | Commercial license options include annual and perpetual individual licenses; public prices vary by license and intended use. Source ↗ |
| Primary scope | Numerical computation and scientific programming, with Xcos for graphical dynamic-system modeling and simulation. | High-level numerical computing with a language mostly compatible with MATLAB. Source ↗ | Commercial programming and numeric-computation environment for algorithm development, data analysis, visualization, and engineering applications. Source ↗ |
| Extension approach | ATOMS hosts packaged Scilab toolboxes; Scilab also supports native C/C++ interfaces. | Extensible through user-written functions and dynamically loaded modules written in C++, C, Fortran, or other languages. Source ↗ | Not documented |
| Modeling and simulation | Xcos is included with Scilab and supports graphical modeling and simulation of hybrid dynamic systems. | Not documented | Simulink is a separate graphical modeling environment integrated with MATLAB; the MATLAB Home Suite bundles Simulink and listed add-ons. Source ↗ |
Only factors supported by the available research are shown. The comparison is descriptive, not a ranking.
These products address broadly similar requirements. The descriptions focus on documented reasons a buyer might compare them with Scilab.
| License | GNU GPL version 2.0 |
|---|---|
| Deployment | Locally installed desktop software |
| Supported operating systems | Windows 10/11 64-bit, listed GNU/Linux distributions, and macOS |
| API | C/C++ call_scilab interface and API_Scilab |
| Extensions | ATOMS toolboxes |
| Windows ARM64 | Experimental distribution listed on the download page |
Verified installation, hosting, administration, or environment details that can affect implementation.
| Installation or hosting | Downloadable desktop software for Windows, Linux, and macOS; the official download page also offers source archives. Source ↗ |
|---|---|
| License | The current download page identifies Scilab as GPL version 2.0 software. Source ↗ |
Documented portability, standards, export, or switching considerations. No switching-cost score is shown unless the evidence supports one.
Scilab exposes C/C++ interfaces for calling the Scilab engine from native applications and accessing Scilab variables. The reviewed sources do not specify a turnkey migration service or general migration path from competing products.
Evidence source ↗A proprietary editorial score based on product capabilities, usability, value, performance, support and user sentiment evidence.
The assessment reflects documented numerical and simulation tools, cross-platform downloads, a free GPLv2 distribution, and public G2 reviews. Scilab's optional AI coding assistant requires a separately installed agent and account.
Methodology v1.0. The assessment weighs feature coverage (25%), ease of use (15%), value for money (20%), performance (15%), support (10%) and user sentiment (15%), using researched product evidence and verified review evidence where available. It is a TechZella editorial assessment, not a direct user-review average.
Key claims are linked to the sources used to verify them. This evidence record is separate from third-party user ratings.
TechZella evaluates software using documented product capabilities, pricing information, usability and value considerations, independent user evidence where available, and competitive context. The assessment is an editorial review, not a hands-on test unless one is explicitly identified. Our editorial assessment is based on 5 documented sources.
The official download page lists the release date, supported downloads, and GNU GPL v2.0 license.
View source ↗Verified 2026-11-10The official features page describes mathematical functions, 2-D and 3-D graphics, algorithm development, and Xcos modeling and simulation.
View source ↗Verified 2026-11-10The official help says Scilab ships no AI model and requires users to install and log in to an agent program.
View source ↗Verified 2026-11-10The official help documents call_scilab as an interface for calling Scilab from native C/C++ applications.
View source ↗Verified 2026-11-10The public G2 product review page displayed the average and review count when accessed.
View source ↗Verified 2026-11-10Answers begin with the clearest available response, followed by the context that helps you act on it.
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