Slack
Channels, huddles and apps for work communication
Slack is a workplace communication platform that organizes conversations into channels, bringing messaging, meetings, files, apps, and AI tools into a single workspace. It is designed to reduce context switching by keeping team discussions, project information, and connected services in one place, with Slack Connect enabling secure collaboration with external partners and clients.
Core capabilities include channels, direct messaging, huddles for audio and video meetings with screen sharing, clips, canvases, lists, and file sharing. Slack AI provides channel and thread summaries, daily recaps, and automatic huddle notes, while Enterprise Search spans connected apps and data sources. Workflow Builder supports no-code automations, and the platform connects to more than 2,600 apps including Salesforce, Google Drive, Office 365, Asana, Jira, Notion, and developer tools, with APIs for custom apps and agents such as Slackbot and Agentforce. Huddles are available on desktop, mobile, and iPad.
Slack is intended for businesses of all sizes, from small teams to enterprises, and is packaged with a free version that limits huddles to two participants and 30 minutes, alongside paid versions offering unlimited group huddles. Paid plans are available in multiple editions, including Pro, Business+, and Enterprise Grid, with seat-based pricing.
12 alternatives to Slack
Ranked by how well each tool replaces Slack: shared features, audience, price and popularity.
Chat, meetings and calling in Microsoft 365
Covers 9 of 9 key features and starts cheaper.
Free plan76 out of 100 match$4/mo- 71 out of 100 matchFree
- 71 out of 100 matchContact sales
Work communication that won't distract you all day
Covers 7 of 9 key features and starts cheaper.
Free plan68 out of 100 match$6/moYour new home for collaboration. One shared space for all your cross-functional work
Covers 7 of 9 key features.
Free plan67 out of 100 matchFreeThreaded team chat for focused conversations.
Covers 6 of 9 key features, starts cheaper and is open source.
Free planOpen source67 out of 100 match$3.50/moA complete XMPP messaging solution. Enterprise alternative to WhatsApp and Slack for large
Covers 2 of 9 key features.
66 out of 100 match—Team chat workspace combining messaging, tasks, calls and AI agents in one place.
Covers 3 of 9 key features.
Free plan66 out of 100 matchFree- 66 out of 100 match$5.40/mo
Free private messaging and calling app for individuals and businesses.
Covers 5 of 9 key features.
Free plan65 out of 100 matchFreeOpen-source communications platform
Covers 7 of 9 key features and is open source.
Free planOpen source64 out of 100 matchFree