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About Stack Overflow
What is Stack Overflow?
Stack Overflow is the world's largest community-driven Q&A platform for developers, hosting over 24 million questions across programming topics. It also offers Stack Internal (formerly Stack Overflow for Teams), a private knowledge management solution that brings trusted Q&A, AI search, and collaboration tools inside organizations. The platform solves the problem of scattered tribal knowledge and repetitive questions by providing a structured, searchable knowledge base.
Who is it for?
Stack Overflow is best for software developers, engineering teams, and technical organizations that need a central place to share and discover coding solutions. It is also for IT departments and knowledge managers at companies who want to reduce onboarding time and improve internal documentation. It is not for non-technical teams or businesses that need a generic wiki or project management tool.
Real use cases
Engineering teams use Stack Internal to store code snippets, best practices, and architectural decisions. Customer support teams can surface verified answers from internal knowledge. Developers use the public Stack Overflow Q&A daily to debug errors and learn new technologies. AI Enhanced Search and Auto-Answer help users find answers faster without browsing long threads.
Key features
- Structured Q&A knowledge base — Time-tested question-and-answer format for fast, accurate answers.
- AI Enhanced Search & Auto-Answer App — AI-powered discovery and automatic answer generation.
- Content Health — Automatically flags stale content to keep your knowledge base up to date.
- Collections & Articles — Group related content and publish long-form documentation.
- Integrations — Connect with Slack, Microsoft Teams, GitHub, Backstage.io, Jira, and more.
- Single sign-on (SSO) with SAML + Okta — Enterprise-grade authentication and access control.
- Communities of practice — Create multiple private groups for different teams or projects.
SaaSpartout Score
7.6
/10
Editorial score from our review methodology — not user ratings.
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Stack Overflow Pricing
Stack Overflow pricing: from $6.50/seat/month.
For comparison: the median starting price in Developer Tools is $19.99/month, measured across 301 tools we track. See the full SaaS Pricing Index →
Free — $0 (up to 50 users)
Includes structured knowledge base, integrations for Slack & Microsoft Teams, Articles, and AI Enhanced Search & Auto-Answer. Start for free.
Basic — $6.50/seat/month (up to 250 users)
Adds SSO with SAML + Okta, read API, Content Health, Collections, and full read & write API.
Business — Custom (unlimited users)
All Basic features plus priority support, SOC 2 Type II certification, advanced content tools (Communities, Articles), multi-team permissions, and additional connectors (Microsoft Graph, GitHub, Backstage.io).
Enterprise — Custom (unlimited users)
All Business features plus ISO 27001/27701 & TISAX certifications, advanced security and single tenant hosting, full integration suite (Jira, webhooks), and premium API add-ons. Contact sales for pricing.
Annual and monthly billing available. All plans include a free trial or free tier.
Frequently asked questions
Is Stack Overflow free?
Yes, there is a free plan for up to 50 users on Stack Internal. The public Stack Overflow Q&A is free for everyone.
How much does Stack Overflow cost?
Stack Internal starts at $6.50 per seat per month (annual billing) for the Basic plan. Business and Enterprise plans have custom pricing.
What is Stack Internal?
Stack Internal (formerly Stack Overflow for Teams) is a private knowledge management platform that brings Stack Overflow's Q&A and AI features inside your organization.
What are the best alternatives to Stack Overflow?
Common alternatives include Confluence, Notion, and GitHub Discussions. For public Q&A, alternatives include Reddit and specific programming forums.
Who is Stack Overflow best for?
It is best for software developers, engineering teams, and technical organizations that need to share and find coding knowledge quickly. It is less suitable for non-technical teams.
Does Stack Overflow have an API?
Yes, the Basic plan includes a read API, and the Business plan includes a full read & write API. Enterprise plans offer premium API capabilities.
