Insomnia vs Radar
Insomnia and Radar are both developer tools tools aimed at developers and small businesses. Insomnia costs less, from $12/mo versus $149/mo for Radar. Both have a free plan.
Open-source API client for REST, GraphQL, gRPC and MCP from Kong
Open-source Kubernetes UI and MCP server for engineers and agents
| Pricing | Open source · $12 | Open source · $149 |
| Starting price | $12/mo | $149/mo |
| Free plan | Yes | Yes |
| Free trial | 14 days | 14 days |
| Built for | Developers, Small businesses, Enterprise | Developers, Small businesses, Enterprise |
| Platforms | macos, windows, linux | web, macos, windows, linux |
| Country | US · 2015 | IL · 2023 |
| Rating | — | — |
Choose Insomnia if
Developers who want a fast, local-first, open-source API client with Git-based collaboration.
- Open-source core under the Apache 2.0 license
- Local-first storage keeps sensitive requests off the cloud
- Clean, fast interface that is lighter than Postman
Look elsewhere if: Teams that need a full API platform with published docs and broad workspace collaboration (Postman, Apidog, Stoplight).
Choose Radar if
Platform and DevOps teams that want a free open-source Kubernetes UI and a safe way to give AI agents cluster context.
- Fully featured open-source build under Apache 2.0
- Single binary and desktop app for macOS, Windows and Linux, no account needed
- Read-only MCP endpoint lets agents inspect clusters safely
Look elsewhere if: Teams that need full-stack metrics, logs and APM in one hosted suite (Datadog, Dynatrace).
Insomnia vs Radar pricing
Insomnia
- Essentials$0Local, Git and cloud projects; Git Sync for up to 3 users
- Pro$12/user/mo$10 billed annually; unlimited users, RBAC, 10K mock requests
- Enterprise$45/user/moSelf-serve up to 50 users; SSO, SCIM, storage policies
Radar
- Radar OSS$0Apache 2.0, unlimited clusters, one cluster at a time
- Cloud Free$03 hosted clusters, unlimited users, 100 investigations/mo
- Team$149/cluster/moScoped RBAC, fleet cost rollup; 20% off annual contracts
- Enterprise$299/cluster/moSSO, SCIM, SIEM export, self-managed; 20% off annual contracts
- CustomCustomAnnual contract, air-gapped, data residency, 99.9% SLA
Insomnia · Key features
- Requests for REST, GraphQL, gRPC, WebSocket, SSE and Socket.IO
- MCP client for testing Model Context Protocol servers
- OpenAPI design editor with live preview and linting
- Local, Git or end-to-end encrypted cloud storage per project
- Collection runner with pre- and post-request scripts and tests
- Mock servers built from specs, responses or plain-language prompts
Cons
- Collaboration and API documentation features trail Postman
- Free Git Sync is limited to 3 users
- Past login and sync changes hurt community trust
Radar · Key features
- Issues queue that groups failures by root cause and blast radius
- Live topology graph and resource browser for any conformant cluster
- Event and change timeline with diffs beyond the one-hour default
- Helm release views with upgrades and rollbacks
- Argo CD and Flux drift detection, diagnosis and sync
- Cluster audit with 44 best-practice checks
Cons
- Per-cluster pricing gets expensive for large fleets
- Radar Cloud SSO and SCIM only on the $299 Enterprise plan
- Team plan keeps just 3 days of timeline history
Insomnia vs Radar: FAQ
Which is cheaper, Insomnia or Radar?
Insomnia starts at $12/mo and Radar at $149/mo. Both prices are checked on the vendors' own pricing pages.
Do Insomnia and Radar have a free plan?
Yes, both Insomnia and Radar have a free plan; paid plans add more usage and features.