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Thunder Client

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Lightweight REST client for VS Code API testing

API ToolsIDE & Code EditorsDeveloper Tools
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Reviews onG2
15 reviews tracked

The Bottom Line

Entry price

Free plan available, paid tiers above

Biggest pro

VS Code REST client

Biggest con

VS Code only

TL;DR - Thunder Client

  • Thunder Client is a lightweight REST API client for VS Code
  • It provides request testing with collections and environments inline
  • Free for basic use, paid for team features
Pricing: Free plan available
Best for: Growing teams
4.3/5 across review platforms

What is Thunder Client?

Editorial review
Thunder Client brings REST client simplicity to VS Code. API testing without leaving your editor-lightweight alternative to Postman. The VS Code integration is seamless. The interface is clean. The features cover most needs. Developers wanting quick API testing in VS Code use Thunder Client for lightweight requests.
how we evaluateSourcethunderclient.com ↗

Pros & Cons

Pros

  • VS Code REST client
  • Lightweight
  • Free tier good
  • Active development
  • Good UI

Cons

  • VS Code only
  • Limited features
  • Team features paid
  • Better alternatives exist
  • Feature gaps

Ratings Across the Web

4.3(15 reviews)
G215 reviews
4.3/5

Ratings aggregated from independent review platforms. Learn more

Key Features

API clientVS Code extensionLightweightCollectionsEnvironmentFree

Pricing Plans

Free Trial

Pricing checked Jul 6, 2026

Free

Free

Non-commercial use

  • 30 collection runs/user
  • Basic extension features
  • Community support
Most Popular

Starter

$3/month per user

Billed annually, up to 10 seats

  • 250 collection runs/user
  • CLI & CI/CD
  • WebSocket/SSE/gRPC
  • Team features

Business

$7/month per user

Billed annually

  • 500 collection runs/user
  • All Starter features
  • Invoice payment option
  • Larger team scaling

Enterprise

$16/month per user

Billed annually

  • Unlimited collection runs
  • Priority support
  • Offline activation
  • Enterprise SSO
  • Secrets manager integration
Calculate your costView full pricing

How Thunder Client's pricing compares

At $3/mo, Thunder Client is the most affordable of its 2 direct competitors.

Thunder Client
$3
Insomnia
$12
Postman
$19

Entry paid plan, monthly. Pricing checked Jul 6, 2026.

Reviews

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4.3/5

Across 15 verified user reviews on G2

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Best Thunder Client Alternatives

Top alternatives based on features, pricing, and user needs.

Postman logo
PostmanFreemium

API platform for building and using APIs

4.7
Hoppscotch logo
HoppscotchFreemium

Fast, lightweight API client for testing

4.9
Insomnia logo
InsomniaFreemium

API client for REST and GraphQL

4.3
See all API tools →

Still deciding?

Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.

Thunder Client vs PostmanHead-to-head: features, pricing, who winsThunder Client vs HoppscotchHead-to-head: features, pricing, who winsThunder Client vs InsomniaHead-to-head: features, pricing, who wins

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Thunder Client FAQ

How does Thunder Client facilitate API testing within VS Code?

Thunder Client integrates directly into VS Code, allowing developers to perform API testing without needing to switch to a separate application. It provides a lightweight alternative for sending requests and viewing responses right within the editor.

What kind of user benefits most from Thunder Client?

Developers who prioritize quick and lightweight API testing directly within their VS Code environment will find Thunder Client most beneficial. It is designed for those who need to send requests efficiently without a heavy external tool.

How does Thunder Client compare to Postman for API development?

Thunder Client offers a lightweight solution for API testing directly within VS Code, unlike Postman which is a standalone application. While Thunder Client provides core API testing features, Postman generally offers a broader set of advanced functionalities and team collaboration tools.

What are the main limitations of using Thunder Client?

A primary limitation of Thunder Client is its exclusive integration with VS Code, meaning it cannot be used as a standalone application. It also has a more limited feature set compared to some alternatives, and its team features are only available on paid plans.

How is Thunder Client priced?

Thunder Client is available with a free tier that covers basic usage and features. For users requiring more extensive usage or advanced functionalities, paid plans are offered.

Can Thunder Client be used for general developer tasks beyond API testing?

Thunder Client is specifically designed as a REST client for API testing, integrating seamlessly into VS Code for this purpose. Its primary utility lies in sending HTTP requests and inspecting responses within the development workflow.

Source: thunderclient.com

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