Dev tools · alternatives · 2026
24 alternatives to REST Client APIsHub Firefox Addon
A Modern and simple API testing tool!
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. REST Client APIsHub Firefox Addon launched in 2020; newer entries below may have overtaken it.
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Last time I posted this it didn't garner much interest. There have been lots of improvements and fixes since the last release. Quick list of features: - Workspaces - Tabs - Nested Folders - Lots of context menus - Response history - Plugins - Runs fully in the browser and runs offline if necessary - Chrome and Firefox extension to bypass CORS restrictions - Desktop builds for all platforms - GraphQL support - Import collections exported from Postman and Insomnia - Simple user friendly interface I built this because I love Insomnia but wanted a portable version that I could run in the…
2022 · restfox.dev · its alternatives →
- 2
Add-on Enables Web Development Across Browsers and Devices
2014 · developer.mozilla.org · its alternatives →
- 3
Anything API▲656Hey HN! We built Notte, a browser infrastructure and agents platform. Many of our users automate UI workflows or extract data from sites that don’t have APIs. In practice, we noticed that once an agent understands how a site works, parts of the task can often run without a browser by interacting with the same network requests the site uses. So we built Anything API: describe a browser task, and our agent explores the site, builds a function, tests it against your description, and deploys a callable REST endpoint. No infra to manage. How the build works: - Describe the task (best results come…
Mar 2026 · anything.notte.cc · its alternatives →
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Apidog▲570Development teams often struggle with using multiple tools like Postman and Swagger for API design, development, and testing. This fragmented approach leads to outdated API specs and chaotic collaboration. So we built Apidog: a single, unified API platform for team collaboration. It has a beautiful interface that makes it easy to create API spec, generate request data from API spec, validate responses, create mock data, orchestrate test scenarios, and publish API documentation. Apidog = Postman + Swagger + Mock + JMeter.
2024 · apidog.com · its alternatives →
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Restfox▲69Browser based HTTP client inspired by Insomnia and Postman
2022 · restfox.dev · its alternatives →
- 6
Hi HN! I've been working lately on unifying firefox configuration. Many people work on creating custom `userChrome.css` files and modules, browser user scripts, etc, but it's hard to actually use these a lot of the time. It usually involves cloning a repo, finding a folder and lots of copy paste. My tool (firebuilder) has an interactive CLI to select what to apply, (e.g. firefox hardening, custom CSS, etc) then creates a brand new profile folder for you. You can also seamlessly port from an existing profile folder to preserve all of your history, bookmarks, extensions, etc. For those more…
2024 · github.com · its alternatives →
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The most popular and powerful web development tool
2014 · getfirebug.com · its alternatives →
- 9
API_TESTER▲249Test your APIs right from the macOS menu bar
2025 · apps.apple.com · its alternatives →
- 10
Leading Open Source API Development Platform for HTTP, REST, GraphQL, gRPC, SOAP, and WebSockets
2017 · insomnia.rest · its alternatives →
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Postman▲182Postman is a powerful HTTP client to test REST API
2014 · postman.com · its alternatives →
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Built for those who build the Web
2014 · firefox.com · its alternatives →
- 13IR
Sharing an internal tool that accelerated my development work 10-fold, especially with API debugging. Thought fellow developers here might find it useful. As a developer, I often have trouble reproducing errors at the client end. https://intercept.rest lets me debug and monitor API requests and responses. It is similar to the Network tab in Chrome Developer Tools but works for any API: mobile apps, webhooks, frontend etc. After I shared it with a close circle of friends, they found it incredibly useful and even found new use cases, I never imagined. Been a long time lurker here and…
2018 · its alternatives →
- 14
Build, manage, and run templated REST API requests
2015 · insomnia.rest · its alternatives →
- 15
Simple Firefox extension for advanced tech lookup of any URL
2017 · addons.mozilla.org · its alternatives →
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2011 · developers.snapbill.com · its alternatives →
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Firefoo▲138Gain power over your Cloud Firestore data with a smart GUI
2021 · firefoo.com · its alternatives →
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Automated browser testing from the cloud
2014 · ghostinspector.com · its alternatives →
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2020 · github.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →