24 Best External Collaboration Tools of 2021

Start your search here for project management software with the best external collaboration tools.  Our software reviews are written by experts who have spent 357 hours researching and analyzing every little detail about the top external collaboration tools on the market. Compare external collaboration features, facts and figures to find the right fit for your business.

1

Slack Review

by Slack Technologies, Inc.
4.7
Metascore
based on60,345 reviews
Metascore
2

Notion Review

by Notion Labs Inc.
4.6
Metascore
based on765 reviews
Metascore
4

Miro Review

by RealtimeBoard, Inc.
4.6
Metascore
based on804 reviews
Metascore
5

Todoist Review

by Doist, Inc.
4.5
Metascore
based on3,879 reviews
Metascore
6

monday.com Review

by monday.com, Ltd.
4.5
Metascore
based on6,693 reviews
Metascore
7

ProWorkflow Review

by Proactive Software Ltd
4.5
Metascore
based on33 reviews
Metascore
8

Plutio Review

by Plutio Ltd
4.5
Metascore
based on330 reviews
Metascore
9

Accelo Review

by Accelo, Inc.
4.5
Metascore
based on414 reviews
Metascore
10

Scoro Review

by Scoro Software OÜ
4.5
Metascore
based on417 reviews
Metascore
11

Targetprocess Review

by Targetprocess, Inc.
4.5
Metascore
based on1,602 reviews
Metascore
12

Workfront Review

by Workfront Inc.
4.5
Metascore
based on1 review
Metascore
13

Smartsheet Review

by Smartsheet Inc.
4.4
Metascore
based on4,716 reviews
Metascore
14

Paymo Review

by Paymo LLC
4.4
Metascore
based on1,203 reviews
Metascore
15

ActiveCollab Review

by ActiveCollab LLC
4.4
Metascore
based on1,095 reviews
Metascore
16

Basecamp Review

by Basecamp LLC
4.3
Metascore
based on38,307 reviews
Metascore
17

Jira Review

by Atlassian Corporation Plc
4.3
Metascore
based on29,958 reviews
Metascore
18

Trello Review

by Atlassian Corporation Plc
4.2
Metascore
based on1 review
Metascore
19

Clarizen Review

by Clarizen, Inc.
4.2
Metascore
based on498 reviews
Metascore
20

Wrike Review

by Wrike, Inc.
4.1
Metascore
based on1 review
Metascore
21

Airtable Review

by Formagrid, Inc.
4.1
Metascore
based on1 review
Metascore
22

LiquidPlanner Review

by LiquidPlanner, Inc.
4.1
Metascore
based on6 reviews
Metascore
23

Zoho Projects Review

by Zoho Corporation
4.1
Metascore
based on687 reviews
Metascore
24

Teamwork Review

by Teamwork.com, Ltd.
4.0
Metascore
based on12 reviews
Metascore

What is External Collaboration?

External input is sometimes necessary to see a project to its completion. Many project management software address this need by adding client proofing features, a client portal, or a platform where invited members can view documents and make changes. External collaboration tools are crucial because few people work entirely alone - there is always a high possibility that someone else will be roped into the project.

Benefits of External Collaboration

  • Bringing in specialized knowledge and expertise into a project
  • Ensuring clients can give direct and useful feedback to teams 
  • Clients can simply log in and view updates to a project
  • Stakeholders and company leaders can be kept updated of a project’s status