Kiro vs Windsurf
A side-by-side comparison of Kiro and Windsurf, two IDE tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
At a glance
| Attribute | Kiro | Windsurf |
|---|---|---|
| Category | IDE | IDE |
| Pricing | FREEMIUM | FREEMIUM |
| License | Proprietary | Proprietary |
| Deployment | Local | Local |
| Platforms (differs) | macOS, Windows, Linux, CLI | macOS, Windows, Linux |
| Model support | Multi-model | Multi-model |
| Vendor (differs) | AWS | Cognition |
| Capabilities (differs) |
|
|
The honest brief
Kiro
Spec-first: writes requirements/design/tasks .md artifacts to disk before coding, unlike prompt-to-diff editors.
- Durable spec artifacts before implementation
- Built on Code OSS — VS Code extensions transfer
- Agent hooks automate actions on file events
- Runs on Claude Sonnet models
- Young product; agent still maturing
- Spec workflow adds overhead for small tasks
- Free tier capped at limited monthly interactions
Windsurf
Cascade plans before it edits, paying off on multi-file changes — with a cleaner, less busy UX than rivals.
- Cascade agent plans then acts
- Strong multi-file change handling
- Good terminal integration
- Bundled model spend in subscription
- Closed source
- Ownership upheaval (acquisition saga)
- Usage limits on lower tiers
- Smaller extension base than VS Code
When to pick which
Both cover Autonomous coding agent, Code generation, and IDE integration.
Pick Kiro if you need Trigger-action automation and Tool / function calling.
- Trigger-action automation (secondary capability)
- Tool / function calling (secondary capability)
Pick Windsurf if you need Code review and MCP server.
- Code review (secondary capability)
- MCP server (secondary capability)
Windsurf leans on IDE integration as a headline capability; Kiro treats it as secondary.
- IDE integration (primary capability)
They also differ on:
- Platforms
- macOS, Windows, Linux, CLI · macOS, Windows, Linux