Slack

Slack is a business communication platform developed by Slack Technologies, now owned by Salesforce, designed to replace email-heavy workflows within organizations. It organizes conversations into channels that can be structured by team, project, or topic, allowing employees to collaborate in focused, searchable threads. The platform supports direct messaging, voice and video calls, file sharing, and integrations with thousands of third-party tools such as Google Drive, Salesforce, and Zoom. Slack is used by companies of all sizes, from small startups to large enterprises, to centralize internal communication and reduce reliance on scattered email chains. Its workflow automation features, including Workflow Builder, let teams automate routine processes like approvals, onboarding, and status updates without writing code.