BSD 3-Clause License

Total freedom of use, modification and redistribution

Blackcube CMS is distributed under BSD 3-clause license, a permissive open source license. This license guarantees freedom to use the code in commercial or non-commercial projects, with or without modification, provided three simple clauses are respected.

The BSD (Berkeley Software Distribution) 3-clause license is one of the most permissive licenses. It leaves total freedom on code use and modification without obligation to publish modifications or contribute to the project.

License advantages

The BSD 3-clause license offers great freedom:

  1. Free use in any type of project (commercial, personal, professional)
  2. Code modification without restriction
  3. Possible redistribution under any license
  4. No obligation to publish modifications
  5. Compatible with most other open source licenses

The three mandatory clauses

The license imposes three minimum conditions:

  1. Copyright preservation: license text and copyright notice must be kept in source code
  2. License preservation: license text must be included in binary distributions
  3. No name usage: contributor names cannot be used to promote derivative products without authorization

Warning

Respecting these three clauses is mandatory. Not respecting them can lead to legal problems.

License text

    Copyright (c) 2025, Blackcube
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

3. Neither the name of the copyright holder nor the names of its contributors
   may be used to endorse or promote products derived from this software
   without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Practical use

In your projects

Keep the LICENSE file provided with source code. When redistributing code, include this file in distribution.

Code modifications

Modify Blackcube CMS code according to your needs. No obligation to publish modifications or contribute to project, even if contributions are always welcome.

Commercial projects

BSD 3-clause license authorizes use of Blackcube CMS in commercial projects without any restriction. Selling products or services based on Blackcube CMS is possible.

Key points to remember

  1. Permissive license: Total freedom of use, modification and redistribution
  2. Three simple clauses: Keep copyright, license and don't use name without authorization
  3. Commercial use authorized: No restriction to sell products based on Blackcube CMS
  4. No contribution obligation: Publishing modifications is optional

Info

Blackcube CMS collects no data and imposes no usage restriction. The code is yours, do what you want with it respecting the license.

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