Open source software (Open Source)
Open source software is programs whose source code is available for viewing, studying, modification and distribution by anyone. This guarantees transparency, security, free availability and the ability to customize software to suit one's needs.
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What is open source software in simple words
Open source software (Open Source) is programs whose source code is open to everyone. You can not only use such a program for free, but also look at how it works, modify it for your needs and even distribute your own version.
Imagine that you bought a car and together with it you received full blueprints, assembly instructions and permission to modify the engine, change parts and even create your own versions of the machine. This is exactly how Open Source works — complete freedom over a software product.
In Russia, import substitution is actively developing, and open source software plays a key role in this. Read about the transition to domestic software in the article Software import substitution.
Key principles of Open Source
- Freedom of use: The program can be used for any purpose, including commercial, without restrictions.
- Freedom of study: The source code is available for viewing; you can find out how the program works and what it does with data.
- Freedom of modification: You can change the code, add new functions and fix errors.
- Freedom of distribution: You can distribute both the original program and your modified versions.
Read about software licenses in the article Licenses.
Popular Open Source solutions
- Operating systems: Linux (Ubuntu, Debian, Fedora, Astra Linux), FreeBSD.
- Office suites: LibreOffice, OpenOffice — a replacement for Microsoft Office.
- Browsers: Mozilla Firefox, Brave, Chromium (the basis of Google Chrome).
- Databases: PostgreSQL, MySQL, MongoDB, Redis.
- Web servers: NGINX, Apache.
- Graphics editors: GIMP (analog of Photoshop), Inkscape (analog of Illustrator), Blender (3D modeling).
- Development environments: VS Code, Eclipse, IntelliJ IDEA Community.
- Programming languages: Python, JavaScript, Java, PHP, Go, Rust.
Read about choosing software in the article Alternative software.
Advantages of open source software
- Free availability: No license payments. Saving the company budget.
- Security: Open code is checked by thousands of developers around the world. Vulnerabilities are found and fixed faster.
- Transparency: You know exactly what the program does with your data. There are no hidden functions or spyware modules.
- Independence: No lock-in to a specific vendor. You can choose and change solutions without losing data.
- Flexibility: The ability to adapt the program to the specific tasks of a business.
- Community: A huge community of developers ready to help, train or create the needed function.
Disadvantages of open source software
- Implementation complexity: Often requires qualified specialists for installation, configuration and support.
- Lack of official support: There is no guaranteed technical support from the vendor (although there are commercial companies offering Open Source support).
- Fragmentation: Many versions and forks can create confusion.
- Compatibility: Not always compatible with proprietary file formats.
Read about choosing an architecture in the article Enterprise architecture.
The difference between Open Source and Free Software
- Free Software: The emphasis is on the ethical freedoms of the user. Initiated by Richard Stallman and the FSF. Freedom is more important than practical benefits.
- Open Source: The emphasis is on practical advantages: quality, flexibility, security. A more pragmatic approach.
- In practice: Almost all free software is open, and vice versa. But the philosophy is different.
How to make money with Open Source
- Paid services: Installation, configuration, maintenance, training.
- Support: Commercial guaranteed support (Red Hat, Canonical).
- Hosting and clouds: Providing Open Source as a service (SaaS).
- Additional functions: The base version is free, extended features are paid (Open Core).
- Donations and sponsorship: Support by the community and large companies.
Read about business models in the article Fintech.
Frequently asked questions
What is open source software in simple words?
Open Source is programs whose code is open to everyone. You can not only use them for free, but also see how they work, modify them for your needs and distribute your versions. It is like a recipe for a dish — you can cook it, change the ingredients and share the recipe. Read about choosing software in the article Alternative software.
What popular programs with open code are there?
Linux (OS), LibreOffice (office), Firefox (browser), PostgreSQL and MySQL (DB), NGINX and Apache (web servers), GIMP (graphics), Blender (3D), Python and JavaScript (languages). This is only a small part — there are millions of Open Source projects. Read about solutions in the article Software import substitution.
What is the difference between Open Source and Free Software?
Free Software puts the emphasis on the ethical freedoms of the user. Open Source — on practical advantages (quality, security). In practice it is almost the same thing, but the philosophy is different. Read about licenses in the article Licenses.
What are the advantages of open software?
Free availability, security (the code is checked by thousands of developers), transparency (no hidden functions), vendor independence, flexibility (you can customize it for yourself) and a huge community. Read about selecting in the article Enterprise architecture.
How do people make money with open software?
On paid services (installation, configuration, support), commercial support (Red Hat), cloud services (SaaS), the Open Core model (the base is free, extensions are paid) and donations/sponsorship. Read about business models in the article Fintech.
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