Vendor alternatives
Atlassian Alternatives
MarketSizer helps GTM teams identify winnable opportunities based on ICP match, active purchase intent, and historical win probability. Instead of guessing who to target, see where Atlassian consistently wins, where buyers are actively evaluating alternatives, and where new opportunities exist right now.
Competitive wins
Where Atlassian wins customers from competitors
Accounts that switched from a competitor to Atlassian over the last 12 months. Each figure is Atlassian's win rate in switches against that competitor, ranked from highest to lowest.
Churn destinations
Where Atlassian lost customers in the last 12 months
Atlassian's biggest competitive threats. Each ribbon shows a vendor that picked up a churned Atlassian customer in the last 12 months; thickness = share of all churns.
- Atlassian vs Zendesk: 24.4%
- Atlassian vs Freshworks: 8.4%
- Atlassian vs HubSpot: 7.8%
- Atlassian vs OpenAI: 6.6%
- Atlassian vs Intercom: 5.6%
- Atlassian vs WhatsApp: 5.6%
- Atlassian vs Wix: 4.9%
- Atlassian vs Rocket.Chat: 3.7%
- Atlassian vs SalesForce: 3.2%
- Atlassian vs Tawk.to: 2.3%
Data current as of July 2026