Front vs Reqres: What are the differences?
Front: Front takes out the pain of shared inboxes (contact@, team@, jobs@...) by introducing collaboration in email. Front allows you to collaborate with your team, stay productive, and use email and social together. Currently available on Mac, Windows, Web, and Mobile; Reqres: Test your front-end against a real API. A hosted REST-API ready to respond to your AJAX requests.
Front belongs to "Team Inbox" category of the tech stack, while Reqres can be primarily classified under "API Tools".
Reqres is an open source tool with 944 GitHub stars and 118 GitHub forks. Here's a link to Reqres's open source repository on GitHub.