> ## Documentation Index
> Fetch the complete documentation index at: https://docs.encord.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Re-index

<Info>Re-indexing the data is not something that should be done lightly. This feature is meant to help resolve issues.</Info>

Re-index forces a full re-indexing of all images, videos, and audio files in Encord.

Encord visualizes the contents of your Folders and sub-folders. As data arrives, it is indexed automatically so content is available almost immediately. Re-indexing clears the existing index and rebuilds it from scratch, ensuring all Folder contents are accurately reflected in Encord.

## When to Use Re-index

Use re-index if you experience issues displaying, sorting, or filtering images, videos, frames, or audio files in Encord.

## How to Re-index

<Info>Please provide a reason why you are re-indexing. The more information you provide, the more prepared we can be with a follow-up.</Info>

Click the **Re-index** button in Encord.

![Re-index](https://storage.googleapis.com/docs-media.encord.com/static/img/Index/index-reindex.gif)

## Re-indexing Duration

Re-indexing duration depends on the volume of data and the number of Folders involved. Folders with large amounts of data may take several hours to complete.

<Info>We strongly recommend against re-indexing while data is actively being imported into the Folder you are viewing in Encord.</Info>