Webex is a video conferencing platform optimized for meetings with up to 40,000 participants and advanced security features, while Slack is a team messaging platform designed for asynchronous communication and workflow integration. They serve different primary purposes but increasingly overlap in functionality.
Webex vs Slack — Side-by-side comparison on A Versus B
Choose Webex if your organization prioritizes video conferencing, needs to host large meetings (100+ participants), or requires enterprise-grade security and compliance features like FedRAMP authorization. Choose Slack if you need a primary messaging hub with deep workflow automation, extensive app integrations, or want to manage asynchronous communication with a low cost-per-user for large teams. For optimal collaboration, many organizations use both: Slack for daily messaging and Webex for scheduled meetings.
Enterprise video conferencing platform with integrated messaging and collaboration features.
Cloud-based team messaging platform used by 750,000+ daily active users across enterprises.
Structured comparison data for Webex vs Slack with 245 attributes.
Record Transcription Languages Supported
Paid Workspaces/Users (Enterprise Adoption)
Annual Subscription Cost (Pro, 100 users)
Maximum video call participants (free tier)
Monthly Subscription Cost (Pro/Standard)
Maximum Video Conference Participants (Free)
Cost Per User (Annual, Lowest Paid Tier)
Monthly Cost Per User (Standard Tier, Annual Billing)
Maximum Video Conference Participants (Standard Plan)
Paying Organizations/Enterprise Customers
Webex vs Slack — Attribute Category Vocabulary
Taxonomy of attribute categories used to classify comparison data for Webex vs Slack.
Not entirely. Webex excels at scheduled video meetings and large-scale presentations, while Slack dominates daily team messaging and workflow automation. Most organizations use both together: Slack for ongoing communication and Webex for formal meetings. Slack has added video calling (up to 50 participants on paid plans), but it's not optimized for presentations. Webex has added messaging, but it lacks Slack's integration depth.
Which platform is more secure for sensitive data?
Webex edges ahead for enterprise security. It holds FedRAMP authorization, HIPAA compliance, and encrypts all meetings by default on all plans. Slack supports end-to-end encryption only in direct messages and on Enterprise+ plans. For regulated industries (healthcare, government, finance), Webex is the safer choice. Slack is secure for most organizations but requires Enterprise+ for meeting encryption.
Slack is more affordable. At 50 users, Slack Pro ($8.75/month) costs $5,250 annually, while Webex Pro ($15.99/month) costs $9,594 annually—a 45% difference. However, Webex's free plan supports 40-minute meetings for 100 people, while Slack's free plan limits video to 3 people, making Webex better value if you only need basic conferencing without paid accounts.
Can I automate workflows with integrations?
Slack is vastly superior for workflow automation. With 2,000+ native integrations, you can connect CRM, project management, HR, and support tools directly into Slack channels with custom automations. Webex has 200+ integrations but fewer workflow-focused options. If automation and tool consolidation are priorities, Slack is the clear winner. Webex is better if you want integrations focused on enhancing meetings.
Which platform is better for remote-first companies?
It depends on your workflow. Slack is better for distributed teams that communicate asynchronously throughout the day across time zones—messages stay organized in searchable threads. Webex is better if your team has frequent synchronous meetings or large all-hands gatherings. Most remote-first companies use Slack as their hub and Webex (or Zoom) for scheduled meetings, combining Slack's async strength with Webex's meeting power.