Add files to Slack

Add files to Slack and share them with your teammates to help to 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 1 GB in size.

 

Add a file from your device

Desktop

iOS

Android

  1. Drag and drop up to ten files into Slack, or click the  paper clipicon 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 like.
  3. Below Share with, choose where to share the file. To share a file later, or to keep it private, untick 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 in 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 ten photos, tap the  image gallery icon
  3. Add a message about your file if you 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 in 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 ten 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 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 in total.

Anyone in a 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 on 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.