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

  • Share files across your workspace or externally
  • Comment on files by using threads
  • Play audio and video files inline within your workspace

Note: Files added to Slack may not exceed 1GB in size. Please note that images cannot be edited in Slack.

 

Add a file from your device

Desktop

iOS

Android

  1. Drag and drop up to 10 files into Slack, or click the  paper clip icon next to the message field.
  2. Add a message about the file(s) if you'd like.
  3. To change a file's name, click Edit below the file name.
  4. 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.
  5. Click Upload when you're ready.

Slack will include a preview of the file as part of your message to the channel or direct message. 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 32 million pixels total.

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

Anyone in the conversation 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 star file or create external link

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

  1. Tap the message field.
  2. Tap the  file with clip icon to upload a file or the  image gallery icon to upload up to four photos. You can choose photos from your phone or take new ones.
  3. Add a message if you’d like.
  4. Tap Send.

Slack will include a preview of the file as part of your message to the channel or direct message. 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 32 million pixels total.

Anyone in the conversation can tap the file to open it and can select from these options:

 Start or reply to the file thread
 Star the file
 Share the file without replies (if any)
 More actions, like Save Image or Copy Link

Note: 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. Tap the  file with clip icon in the input bar to bring up your available files.
  2. To upload a file, tap the ic_photo_library_black_24dp_2x.png files icon, or tap the  image gallery icon to upload up to four photos. You can choose photos from your device or take a new one by tapping the  camera icon.
  3. Tap on the file to give it a title and add a message if you’d like.
  4. Tap the   paper plane icon in the input bar.

Slack will include a preview of the file as part of your message to the channel or direct message. The image will display inline unless it's larger than 11,000 pixels on the longest side or over 32 million pixels total.

Anyone in the conversation can tap the file to open and find more options:

 Start or reply to the file thread
 Star the file
 Share the file without replies (if any)
 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 or by pasting links into your message.