License

Copyright 2011 Twitter, Inc.

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

FAQs

Boiled down to smaller chunks, Bootstrap's license can be described with the following conditions. For context, these are the same FAQs that we share internally at Twitter.

It allows you to:

• freely download and use Twitter open source software, in whole or in part, for personal, company internal or commercial purposes
• use Twitter open source software in packages or distributions that you create

It forbids you to:

• redistribute any piece of Twitter open source originated software without proper attribution
• use any marks owned by Twitter in any way that might state or imply that Twitter endorses your distribution
• use any marks owned by Twitter in any way that might state or imply that you created the Twitter software in question

It requires you to:

• include a copy of the license in any redistribution you may make that includes Twitter software
• provide clear attribution to Twitter for any distributions that include Twitter open source software

It does not require you to:

• include the source of the Twitter software itself, or of any modifications you may have made to it, in any redistribution you may assemble that includes it
• submit changes that you make to the software back to Twitter (though such feedback is encouraged)