Software Alternatives, Accelerators & Startups

Thunder Client VS IsDown.app

Compare Thunder Client VS IsDown.app and see what are their differences

Thunder Client logo Thunder Client

Rest API client for VS Code, lightweight Postman alternative

IsDown.app logo IsDown.app

Monitor all your cloud services with our status page aggregator. IT teams choose IsDown to monitor all their vendors and get alerts whenever an outage occurs. Integration with Datadog, PagerDuty, Slack, Microsoft Teams, and a lot more.
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  • Thunder Client Landing page
    Landing page //
    2023-10-05
  • IsDown.app Landing page
    Landing page //
    2023-11-06
  • IsDown.app Notifications in Slack, Email, Google Chat, PagerDuty, Datadog, and more.
    Notifications in Slack, Email, Google Chat, PagerDuty, Datadog, and more. //
    2024-05-08
  • IsDown.app Dashboard with all your vendor status
    Dashboard with all your vendor status //
    2024-05-08
  • IsDown.app Public or Private Status Pages
    Public or Private Status Pages //
    2024-05-08

IsDown is a powerful vendor monitoring platform that centralizes the status of thousands of cloud services into one easy-to-use dashboard. It helps teams stay ahead of service outages by aggregating official status updates from over 3,200 SaaS and cloud providers.

Key Features: • Unified Monitoring: Keep track of all your critical vendors in a single place. • Real-Time Alerts: Receive instant notifications via Slack, Email, or other integrations when a service experiences issues. • Customizable Notifications: Filter alerts by service components and severity to focus on what matters most. • Historical Data: Access historical uptime and incident reports to assess vendor reliability over time. • Seamless Integrations: Connect with tools like Slack, Microsoft Teams, PagerDuty, and Datadog to streamline your workflow.

Ideal for teams relying on multiple external services, IsDown ensures you’re always informed about vendor performance, allowing you to respond proactively to disruptions.

Thunder Client features and specs

  • User-Friendly Interface
    Thunder Client offers a clean and intuitive interface that makes it easy for users to create and manage API requests without getting overwhelmed by complex features.
  • VS Code Integration
    Being an extension for Visual Studio Code, it is convenient for developers who already use VS Code, enabling seamless API testing within their development environment.
  • Lightweight
    Compared to other API testing tools, Thunder Client is lightweight, making it ideal for users who need a quick and simple solution for testing APIs without extensive configuration.
  • Environment Variables
    The tool allows the use of environment variables, enabling users to manage different environments effectively and switch between them easily.
  • Support for Collections
    Supports organizing requests into collections, allowing for efficient management and categorization of related requests.

Possible disadvantages of Thunder Client

  • Limited Advanced Features
    Thunder Client lacks some of the advanced features found in more robust API testing tools, such as automation scripts and extensive plugin support.
  • Dependency on VS Code
    As a VS Code extension, it requires Visual Studio Code to run. This dependency can be a drawback for users who prefer other code editors or standalone applications.
  • No Collaboration Features
    Unlike some other API testing tools, Thunder Client does not have built-in collaboration features, which can limit its use in team environments.
  • Platform Specific
    It is primarily designed for use within Visual Studio Code, which may not be ideal for users who work across multiple platforms or require a standalone solution.

IsDown.app features and specs

  • Status Dashboard
  • Multiple Profiles for same account
  • Slack App
  • Zapier Integration
  • Scheduled maintenances feed
  • Weekly Digest
  • Datadog Integration
  • Uptime Monitoring
  • Keyword Monitoring
  • SSL Monitoring
  • PagerDuty Integration

Analysis of Thunder Client

Overall verdict

  • Thunder Client is a good option for developers who want a minimalistic and efficient tool for testing APIs without the need for a standalone application. It is particularly beneficial for those who use Visual Studio Code as their primary development environment.

Why this product is good

  • Thunder Client is known for its simplicity and ease of use, making it a popular choice for developers who require a lightweight API testing solution. It is integrated directly into Visual Studio Code, allowing users to manage API requests without switching between applications. It supports RESTful services and offers features like collections, environment variables, and authentication support, comparable to other tools but within a more streamlined interface.

Recommended for

  • Developers who prefer working within Visual Studio Code
  • Those who need a simple and fast tool for testing REST APIs
  • Developers looking for an alternative to more complex API testing tools
  • Teams or individuals with straightforward API testing needs and require easy sharing of request collections

Thunder Client videos

Thunder Client - API testing right inside VSCode

More videos:

  • Review - Do you really need Postman? | Use Thunder Client - VSCode extension | Easy & Lightweight
  • Review - Thunder client - Vscode extension | Say no to Postman

IsDown.app videos

No IsDown.app videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Thunder Client and IsDown.app)
Developer Tools
66 66%
34% 34
Monitoring Tools
0 0%
100% 100
API Tools
100 100%
0% 0
Website Monitoring
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Thunder Client and IsDown.app

Thunder Client Reviews

Best Postman Alternatives To Consider in 2025
This free, feature-rich extension integrates seamlessly with VSCode, making it ideal for developers who prefer a unified environment. Thunder Client offers collection management, environment variables, and basic automation capabilities. It stands out for its tight integration with VSCode's debugging tools.
15 Best Postman Alternatives for Automated API Testing [2022 Updated]
Thunder Client is a Vscode Postman alternative that runs as a Visual Studio Code extension (not open source). Its design focuses on simple and efficient HTTP clients while constructing or connecting with APIs. Thunder Client can handle a wide range of API requests. It effectively processes immense amounts of data simultaneously while not slowing down the VS Code program.
Source: testsigma.com
Top 5 Postman alternatives
Thunder Client is a VS Code extension focusing on being a simple and efficient HTTP client while building or integrating with APIs. It supports collections as a way to group relevant requests. Moreover, ThunderClient supports the concept of Environment and Environment Variables to store and re-use values within multiple requests. Finally, ThunderClinet offers a UI that you...
Source: testfully.io

IsDown.app Reviews

We have no reviews of IsDown.app yet.
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Social recommendations and mentions

Based on our record, IsDown.app seems to be more popular. It has been mentiond 3 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Thunder Client mentions (0)

We have not tracked any mentions of Thunder Client yet. Tracking of Thunder Client recommendations started around Mar 2021.

IsDown.app mentions (3)

  • Bring third-party incidents into Better Stack
    The Better Stack integration is included with every paid IsDown plan. Sign up for a free 14-day trial — or open Alerts & Integrations in your current IsDown account and add Better Stack now. Your team will see live incidents from AWS, Stripe, GitHub, and hundreds more, all inside the queue they already trust. - Source: dev.to / 26 days ago
  • Connect all your vendors status pages to your Better Stack account
    Now you can monitor third-party outages right in your Better Stack account with https://isdown.app . What will you get? Single incident feed – Internal alerts and third-party outages appear in the same view. - Source: Hacker News / 26 days ago
  • Ask HN: How did your startup get the first payment?
    I would say almost from day 1. Even at a lower price, it's an important step to validate an idea. When people need to put their credit card in and give you money, it's another level of commitment that I don't think you will have with a free plan. It is a level of commitment from the user but also from you. If you're getting paid, it's expected that, for example, if a service is down/not working, you need to fix... - Source: Hacker News / over 2 years ago

What are some alternatives?

When comparing Thunder Client and IsDown.app, you can also consider the following products

Postman - The Collaboration Platform for API Development

UptimeRobot - Free Website Uptime Monitoring

Insomnia REST - Design, debug, test, and mock APIs locally, on Git, or cloud. Build better APIs collaboratively for the most popular protocols with a dev‑friendly UI, built-in automation, and an extensible plugin ecosystem.

Ping Bot - Reliable monitoring for your servers, vendors, and infrastructure.

EchoAPI - Next-gen API development collaboration platform. More than just API design, debug, test, load-testing, and mock.

StatusGator - Early outage alerts for every app you rely on