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+---
+type: reference, howto
+stage: Create
+group: Knowledge
+info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers
+---
+
+# Wiki settings **(CORE ONLY)**
+
+Adjust the wiki settings of your GitLab instance.
+
+## Wiki page content size limit
+
+> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/31176) in GitLab 13.2.
+
+You can set a maximum content size limit for wiki pages. This limit can prevent
+abuse of the feature. The default value is **52428800 Bytes** (50 MB).
+
+### How does it work?
+
+The content size limit will be applied when a wiki page is created or updated
+through the GitLab UI or API. Local changes pushed via Git will not be validated.
+
+In order not to break any existing wiki pages, the limit doesn't have any
+effect on them until a wiki page is edited again and the content changes.
+
+### Wiki page content size limit configuration
+
+This setting is not available through the [Admin Area settings](../../user/admin_area/settings/index.md).
+In order to configure this setting, use either the Rails console
+or the [Application settings API](../../api/settings.md).
+
+NOTE: **Note:**
+The value of the limit **must** be in bytes. The minimum value is 1024 bytes.
+
+#### Through the Rails console
+
+The steps to configure this setting through the Rails console are:
+
+1. Start the Rails console:
+
+   ```shell
+   # For Omnibus installations
+   sudo gitlab-rails console
+
+   # For installations from source
+   sudo -u git -H bundle exec rails console -e production
+   ```
+
+1. Update the wiki page maximum content size:
+
+   ```ruby
+   ApplicationSetting.first.update!(wiki_page_max_content_bytes: 50.megabytes)
+   ```
+
+To retrieve the current value, start the Rails console and run:
+
+  ```ruby
+  Gitlab::CurrentSettings.wiki_page_max_content_bytes
+  ```
+
+#### Through the API
+
+The process to set the wiki page size limit through the Application Settings API is
+exactly the same as you would do to [update any other setting](../../api/settings.md#change-application-settings).
+
+```shell
+curl --request PUT --header "PRIVATE-TOKEN: <your_access_token>" https://gitlab.example.com/api/v4/application/settings?wiki_page_max_content_bytes=52428800
+```
+
+You can also use the API to [retrieve the current value](../../api/settings.md#get-current-application-settings).
+
+```shell
+curl --header "PRIVATE-TOKEN: <your_access_token>" https://gitlab.example.com/api/v4/application/settings
+```