TaskCrusher lets you hire freelances from Toptal and Upwork directly from Trello
Taskcrusher for Trello is a Chrome Extension that adds a "Get Freelancer" button to your Trello cards so you can export your card a job ready to be published in Upwork.com. No affiliation with Trello nor Upwork. For more information visit taskcrusher.co
- (2016-08-11) Gastón Viau: Great tool for working with freelancers!!!