Add files to Slack

Add files to Slack and share them with your teammates to help you collaborate. You can choose and upload files to Slack from your device or your preferred file management app. Uploaded files are stored, searchable, and shareable across your workspace.

How files work in Slack

Note: Files added to Slack may not exceed 1GB in size.

 

Add a file from your device

Desktop

iOS

Android

  1. Drag and drop up to 10 files into the message field in Slack, or click the  paper clip icon next to the message field. If you clicked the paper clip icon, choose where to upload a file from.
  2. Add a message about the file(s) if you'd like.
  3. Below Share with, choose where to share the file. To share a file later, or to keep it private, uncheck the box next to Share with.
  4. Click Upload.

Slack will include a preview of the file as part of your message in a conversation. If it's an image file, the preview will display inline as long as it's smaller than 11,000 pixels on the longest side, or less than 45 million pixels total.

Note: Microsoft Office files that are larger than 50 MB will not display a preview.

Anyone in a conversation where a file was shared can click the file to open it. To see more options, hover over the file:

 Download a copy to your computer
 Share the file without replies (if any)
 More actions, like Save or Create external link

Tip: You can upload a file immediately by holding the Shift key as you drag and drop it into Slack, or by pasting an image directly into the message field.

  1. Open a channel or direct message (DM).
  2. Tap the  file with clip icon to add a file already shared in Slack. After selecting that option, you can tap  Add a File to upload a file from your device. To add up to 10 photos, tap the  image gallery icon
  3. Add a message about your file if you'd like.
  4. Tap the  paper plane icon to send.

Slack will include a preview of the file as part of your message in a conversation. If it's an image file, the preview will display inline as long as it's smaller than 11,000 pixels on the longest side, or less than 45 million pixels total.

Anyone in a conversation where a file was shared can tap the file to open it and can choose from these options:

 Start or reply to a thread
 Save the file
 Share the file to another conversation
 More actions, like Save Image or Copy Link

Tip: Looking to add a file to a thread? Tap the thread to open it, tap the  blue arrow, then tap the   file with clip icon

  1. Open a channel or direct message (DM).
  2. Tap the  image gallery icon to add up to 10 photos, or tap the  file with clip icon to add a file already shared in Slack. To upload new photos or files, tap the mountain icon in the bottom right corner of the screen after choosing a file type. 
  3. Add a message about your file if you'd like.
  4. Tap the   paper plane icon to send.

Slack will include a preview of the file as part of your message in a conversation. If it's an image file, the preview will display inline as long as it's smaller than 11,000 pixels on the longest side, or less than 45 million pixels total.

Anyone in conversation where a file was shared can tap the file to open it and choose from these options:

 Start or reply to a thread
 Save the file
 Share the file to another conversation
 More actions, like Save Image or Copy Link


Add files from Box, Dropbox, Google Drive, or OneDrive

You can also share files from a file management tool. To get started with one of these apps, visit an article below:

Once one of these apps is installed to your workspace, you can add files by clicking the   paper clip icon to the right of the message field or by pasting a link to a file into a message.