Dev tools · alternatives · 2026
24 alternatives to Restfox – Open source lightweight alternative to Postman
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…
Restfox is an open source API testing tool that runs in the browser, as a desktop application, or offline. It supports workspaces, tabs, nested folders, response history, plugins, and GraphQL, with the ability to… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Restfox – Open source lightweight alternative to Postman launched in 2022; newer entries below may have overtaken it.
- 1
Restfox▲69Browser based HTTP client inspired by Insomnia and Postman
2022 · restfox.dev · its alternatives →
- 2
Leading Open Source API Development Platform for HTTP, REST, GraphQL, gRPC, SOAP, and WebSockets
2017 · insomnia.rest · its alternatives →
- 3
Leading Open Source API Development Platform for HTTP, REST, GraphQL, gRPC, SOAP, and WebSockets
2020 · insomnia.rest · its alternatives →
- 4
Postman▲182Postman is a powerful HTTP client to test REST API
2014 · postman.com · its alternatives →
- 5OS
Hello! This is Jeane and Samuel and we’re building RecipeUI. RecipeUI is an open source Postman alternative that uses TypeScript to statically type and autocomplete requests. We built this because current API tools don’t deal with the fact that some APIs are just painful to work with. For us, it’s usually error after error as we try to figure out how to properly form the first request. We recorded a demo to show you how TypeScript helps us autocomplete a request correctly. https://youtu.be/O_Mly_p-g5s How does our platform improve the developer experience? The analogy is…
2023 · recipeui.com · its alternatives →
- 6
Build, test, and document your APIs faster
2016 · postman.com · its alternatives →
- 7
I had to do a bit of web-workflow documentation and found the process of gathering screenshots, placing them correctly into a document, and creating captions extremely tiring. I figured it’ll be easy to automate and also a great opportunity to get to know the Browser API, and here we are with the first release of the extension. It’s extremely easy to use but barebones which I plan to change in the near future, so any feedback will be appreciated. I want to keep the docs generation process completely offline to avoid dealing with server costs and GDPR stuff which poses a lot of challenges…
2022 · addons.mozilla.org · its alternatives →
- 8OS
2020 · steveliu.co · its alternatives →
- 9
Hey HN, I made Browser-Use, an open-source tool that lets (all Langchain supported) LLMs execute tasks directly in the browser just with function calling. It allows you to build agents that interact with web elements using natural language prompts. We created a layer that simplifies website interaction for LLMs by extracting xPaths and interactive elements like buttons and input fields (and other fancy things). This enables you to design custom web automation and scraping functions without manual inspection through DevTools. Hasn't this been done a lot of times? Good question, as a general…
2024 · github.com · its alternatives →
- 10IM
Hi! I'm Marcell, and I'm working on FetchFox (https://fetchfoxai.com). It's a Chrome extension that lets you use AI to scrape any website for any data. I'd love to get your feedback. Here's a quick demo showing how you can use it to scrape leads from an auto dealer directory. What's cool is that it scrapes non-uniform pages, which is quite hard to do with "traditional" scrapers: https://youtu.be/wPbyPSFsqzA A little background: I've written lots and lots of scrapers over the last 10+ years. They're fun to write when they work, but the internet has changed in ways…
2024 · fetchfoxai.com · its alternatives →
- 11
We’re Francis and Pierre, and we're excited to share Lightpanda (https://lightpanda.io), an open-source headless browser we’ve been building for the past 2 years from scratch in Zig (not dependent on Chromium or Firefox). It’s a faster and lighter alternative for headless operations without any graphical rendering. Why start over? We’ve worked a lot with Chrome headless at our previous company, scraping millions of web pages per day. While it’s powerful, it’s also heavy on CPU and memory usage. For scraping at scale, building AI agents, or automating websites, the overheads are…
2025 · github.com · its alternatives →
- 12IR
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 →
- 13
NativeRest▲136100% native, localfirst rest api client for mac, windows and linux. Supports multiple environmets, custom http methods, proxy server, offline mode and customizable themes. It's file first, you can import your collections and get started using NativeRest.
2023 · nativesoft.com · its alternatives →
- 14
An extension for Firefox and Chrome to add comments to any URL - comntr/webext
2019 · github.com · its alternatives →
- 15
Hi HN, I'm excited to finally launch this project. While existing tools like Postman excel at API discovery and testing, they often require us to navigate complex interfaces, manually construct requests, etc. That's why I created OpenAstra. The core idea is to combine the visual richness of traditional API tools with the simplicity of a chat interface. Think of it as "Postman meets ChatGPT" - allowing us to interact with APIs through natural conversation while retaining core essential features of traditional API tools. If you want to test an endpoint or understand what it does? Just ask. The…
2025 · github.com · its alternatives →
- 16
Apicat is the ultimate offline Postman alternative that stores your .http files locally. It’s Git-friendly, open-source, and highly compatible with Postman. Test APIs offline with this powerful free offline API client designed for developers who need a reliable local API testing tool.
2025 · apicat.com · its alternatives →
- 17
Port OpenAPI Specs to Postman Collections, inject test suite and run via Newman 👨🏽🚀 - apideck-libraries/portman
2021 · github.com · its alternatives →
- 18
List of awesome API clients. Postman and Insomnia alternatives - stepci/awesome-api-clients
2023 · github.com · its alternatives →
- 19
Hi HN! I just released version 1.0 of Posting, an open source terminal application I've been working on which you might find useful if you work with, test, or develop HTTP APIs! Posting (https://github.com/darrenburns/posting) is an HTTP client, not unlike Postman and Insomnia. However, as a TUI application, it works over SSH and enables efficient keyboard-centric workflows. Your requests are stored locally in simple readable YAML files, meaning they're easy to read and version control. Some other features include: - "Jump mode" navigation - Environments/variables…
2024 · github.com · its alternatives →
- 20
Hi, HN. Gui, Lucis, and the deco.cx team here — we're a bunch of Brazilians building an open-source, all-in-one web editor for the modern TypeScript dev. Check out our GitHub at https://github.com/deco-cx/deco and discover more at our site https://deco.cx/. We built frontend tools at a hyper-growth e-commerce platform for 9 years. Deco.cx is the thing that we wish existed when we were managing hundreds of enterprise-grade React-based websites. The gist is: JSX, HTMX, TypeScript, Tailwind and Deno. All visually editable in a beautiful, collaborative,…
2024 · deco.cx · its alternatives →
- 21
Hi HN! I'm Greg and I've been working on Yaak for just over a year. I usually describe it as a Postman alternative since most developers are familiar with that, but it's targeted more toward users that just want an API client (no mocking, testing, spec design, etc). Having also created Insomnia for a similar purpose, I never thought I'd build another API client again. But, after selling Insomnia in 2019 and watching it expand into the broader feature set of Postman, I was left wanting a simpler tool again. Yaak was my answer to that. It's hard to describe how it's better than the 100 other…
2025 · yaak.app · its alternatives →
- 22
2023 · openapistack.co · its alternatives →
- 23
2011 · developers.snapbill.com · its alternatives →
- 24
Instantly generate openapi (OAS) 3.0.0 REST + GraphQL APIs
2019 · 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 →