Aviationstack is a scalable REST API for real-time flight tracking, historical flight data, airport info, and global aviation data.
from $49.99/mo
About Thunder Client
What is Thunder Client?
Thunder Client is a lightweight REST API client built directly into VS Code and JetBrains IDEs. It lets developers test APIs without leaving their editor, eliminating context switching and boosting productivity. Data stays local for privacy, and collections sync via Git for team collaboration.
Who is it for?
It is designed for individual developers, small teams, and enterprises that need fast, scriptless API testing inside their code editor. It is a great fit for backend developers, full-stack engineers, and QA teams who prefer local-first tools. It is not ideal for non-developers or those who need a standalone GUI app outside an IDE.
Real use cases
Use Thunder Client to test REST endpoints during development, debug API responses, run collections in CI/CD pipelines, and collaborate via Git-synced collections. Support for WebSocket, SSE, and gRPC makes it suitable for modern API workflows.
Key features
- Lightweight REST Client — Fast, easy-to-use API testing without leaving your code editor.
- Local Storage — All API data stored locally on your machine for enhanced privacy and security.
- Git Sync — Save and share collections via Git for seamless team collaboration.
- Scriptless GUI Testing — Test API responses with a visual interface, no scripting required.
- JetBrains Plugin — Full Thunder Client support for JetBrains IDEs.
- WebSocket, SSE & gRPC — Test real-time and streaming APIs beyond REST.
- CI/CD Integration — Run collections in your CI/CD pipeline using the CLI.
SaaSpartout Score
7.4
/10
Editorial score from our review methodology — not user ratings.
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Thunder Client Pricing
Thunder Client pricing: from $0/mo.
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 per user/month
Includes: VS Code extension with basic API client features. Local storage, limited collection runs per month.
Starter — $3 per user/month (billed annually)
Includes: VS Code & JetBrains, team features, CLI/CI/CD, WebSocket, SSE, gRPC, 250 collection runs per month. Credit card only. Up to 10 seats.
Business — $7 per user/month (billed annually)
Includes: All Starter features, 500 collection runs per month. Payment by invoice available.
Enterprise — $16 per user/month (billed annually)
Includes: All Business features, unlimited collection runs, offline activation, enterprise SSO*, Secrets Manager integration, License Management API, Audit Logs. 14-day free trial available upon request for business email addresses. *Additional cost for SSO.
Frequently asked questions
Is Thunder Client free?
Yes, Thunder Client has a Free plan at $0 per user/month with basic API client features and local storage. Premium features require a paid plan.
How much does Thunder Client cost?
Thunder Client pricing starts at $0 for the Free plan. Paid plans: Starter at $3/user/month, Business at $7/user/month, and Enterprise at $16/user/month, all billed annually.
What is Thunder Client used for?
Thunder Client is a lightweight REST API client for VS Code and JetBrains. Developers use it to test APIs, debug endpoints, and run collections without leaving their code editor.
Who is Thunder Client best for?
It is best for developers—backend, full-stack, and QA engineers—who want fast, scriptless API testing inside their IDE. It is not designed for non-developers or standalone API tools.
What are the top alternatives to Thunder Client?
Popular alternatives include Postman, Insomnia, and Bruno. Thunder Client stands out for its lightweight IDE integration, local-first storage, and Git sync.
Does Thunder Client support WebSocket and gRPC?
Yes, Thunder Client supports WebSocket, SSE, and gRPC on Starter, Business, and Enterprise plans. The Free plan supports only REST APIs.
