# Topics
## Overview
Topics are a feature in the Web App that allow you to associate specific labels with a repository. Topics will allow you to tag, search, and navigate repositories based on a location, purpose, or a separate taxonomy.
Topics have endless use cases and are an extremely powerful organizational tool. Some common implementations of Topics are outlined below:
* **Location:** If an organization has 10 repositories that represent PLC projects for the stamping area in a factory, its users may add a "stamping" topic to each repository. This allows users in that organization to quickly find all repositories that relate to the stamping area in the plant.
* **Version**: If an organization wants to track the version or firmware of a program in a customer repository, its users may add a "V1" topic that reflects the current firmware of the program within that repository. This allows users in that organization to quickly identify which customer repositories have outdated versions.
* **Type**: If an organization wants to efficiently identify all of its repositories that are associated with a specific vendor, its users may add a "Siemens" topic to each repository that contains Step7 TIA Portal projects.
## Adding a Topic
Navigate to the *Files* view in your repository and enable the *Show Topics* toggle near the top of the screen.
You can view, add, and delete topics once the *Show Topics* toggle is enabled. To add a new Topic, enter a Topic name and press the teal *+* icon.
The new Topic will appear as an interactive chip.
{% hint style="info" %}
You can add up to a maximum limit of 25 Topics to a repository
{% endhint %}
## Deleting a Topic
Click on *Manage Topics* to remove a Topic.
Any Topics that are associated with your repository will display in red. Click anywhere on the chip to remove it from the repository.
Click the *Save Changes* option to save your work.
## Searching by Topics
You can use a topic to search for a repository from the *Dashboard*. Select the Repositories tab, and Topics that have been assigned to a repository will be displayed as interactive chips.
To filter a list of repositories that have been assigned a certain topic, either click on a topic from the repository list or search for a topic by clicking into the *Search for Repositories...* field. The list will display repositories that have the chosen topic assigned to them. You can clear the filter condition by clicking on the red *X* within the active chip.
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If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
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```
GET https://docs.copia.io/docs/git-based-source-control/additional-features/topics.md?ask=
```
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