Thunder Client vs Postman
Thunder Client and Postman are both popular tools in the API Development space. Both use a freemium pricing model, with Thunder Client starting at Free and Postman at Free. Both offer a free tier to get started. Below we break down features, pricing, strengths, and weaknesses to help you decide which tool fits your workflow best.
Last updated: March 2026
Quick Verdict
Choose Thunder Client if you want lightweight rest api client built directly into vs code.. Thunder Client's biggest strengths include no context switching — api testing in your editor and lightweight and fast compared to desktop apps. Choose Postman if you prefer the world's leading api platform, now powered by ai.. Key advantages include industry standard with massive ecosystem and community and ai assistant automates repetitive testing tasks. It's also rated higher (4.2 vs 3.9).
Lightweight REST API client built directly into VS Code.
| Thunder Client | Postman | |
|---|---|---|
| Pricing | Free | Free |
| Free Tier | Yes | Yes |
| Pricing Model | Freemium | Freemium |
| Rating | ★ 3.9 | ★ 4.2 |
| Categories | API Development | API Development |
| Key Features | 6 features | 6 features |
| Feature | Thunder Client | Postman |
|---|---|---|
| REST API testing inside VS Code | ✓ | — |
| Environment variables and request collections | ✓ | — |
| Test scripting for automated validation | ✓ | — |
| Git-friendly JSON file storage | ✓ | — |
| GraphQL support | ✓ | — |
| Import from Postman, Insomnia, and OpenAPI | ✓ | — |
| API request builder and testing workspace | — | ✓ |
| Postbot AI assistant for test generation | — | ✓ |
| Automated API testing and monitoring | — | ✓ |
| API documentation generation | — | ✓ |
| Mock server creation | — | ✓ |
| Team collaboration with shared workspaces | — | ✓ |
Thunder Client
Pros
- + No context switching — API testing in your editor
- + Lightweight and fast compared to desktop apps
- + Git-friendly file storage for team collaboration
- + Easy migration from Postman with import feature
Cons
- − Less feature-rich than Postman for complex workflows
- − Advanced features require paid plan
- − VS Code only — not available in other editors
Postman
Pros
- + Industry standard with massive ecosystem and community
- + AI assistant automates repetitive testing tasks
- + Comprehensive free tier for individual developers
- + Excellent team collaboration features
Cons
- − Desktop app can be resource-heavy
- − Advanced features require paid team plans
- − AI features still catching up to specialized tools
The Bottom Line
Choose Thunder Client if: you want lightweight rest api client built directly into vs code.. It's completely free to use. Keep in mind: less feature-rich than postman for complex workflows.
Choose Postman if: you prefer the world's leading api platform, now powered by ai.. It's completely free to use. It holds a higher user rating (4.2 vs 3.9). Keep in mind: desktop app can be resource-heavy.
Both tools compete in the API Development space. The right choice depends on your specific needs, team size, and budget.
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