Postkit Alternatives

Postkit is described as 'Allows developers to quickly prototype API endpoints to use in their applications and websites. It’s great if you just need some JSON endpoints for your web app or to capture inputs from an HTML form' and is an website in the development category. There are more than 10 alternatives to Postkit, not only websites but also apps for a variety of platforms, including Linux, SaaS, Mac and Windows apps. The best Postkit alternative is Produkt.so, which is free. Other great sites and apps similar to Postkit are Docsie, swagger.io, API Astrolab and Stoplight.

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Postkit alternatives page was last updated Nov 17, 2025

Produkt.so
5 likes
Produkt.so is a sleek, Notion-inspired help center platform built for tech startups and small teams. It offers a fast, block-based editor to write articles, organizes content into collections, and supports attachments up to 50 MB.
Cost / License
Freemium (Subscription)
Proprietary
Application types
Team Collaboration Tool
Help Desk Platform
Origin
Poland
EU
Platforms
Online
+1
Is Produkt.so a good alternative to Postkit?
Produkt.so is the most popular Web-based alternative to Postkit.
Produkt.so is the most popular free alternative to Postkit.
Produkt.so is Freemium and ProprietaryPostkit is Free and Proprietary
Produkt.so is Privacy focused and LightweightPostkit is not according to our users
Docsie
31 likes
Docsie is a multilingual documentation solution that reduces documentation time by 60% through features like collaborative editing, real-time updates, a searchable repository, interactive checklists, and AI-powered chatbots. It also enables automation, version control, media upload, and supports diverse languages.
Cost / License
Freemium (Pay once)
Proprietary
Application types
Team Collaboration Tool
Note-taking Tool
Origin
United States
Platforms
Online
+1
Is Docsie a good alternative to Postkit?
swagger.io
27 likes
Swagger is an open source RESTapi Documentation Tool.
24 swagger.io alternatives
Cost / License
Free
Open Source
Application type
Documentation Generator
Platforms
Mac
Windows
Linux
Online
Node.JS
Is swagger.io a good alternative to Postkit?
swagger.io is the most popular Windows, Mac & Linux alternative to Postkit.
swagger.io is the most popular Open Source alternative to Postkit.
swagger.io is Free and Open SourcePostkit is Free and Proprietary
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Docsie
Docsie is a multilingual documentation solution that reduces documentation time by 60% through features like collaborative editing, real-time updates, a searchable repository, interactive checklists, and AI-powered chatbots. It a...

https://www.docsie.io
Learn More
API Astrolab
1 like
The API Astrolab enables today’s API-first companies to show their API products in a visual way so that anyone can understand how they work.
Cost / License
Freemium (Subscription)
Proprietary
Origin
United States
Platforms
Online
Software as a Service (SaaS)
Is API Astrolab a good alternative to Postkit?
API Astrolab is the most popular SaaS alternative to Postkit.
API Astrolab is Freemium and ProprietaryPostkit is Free and Proprietary
Stoplight
12 likes
Stoplight is an API Design, Development, and Documentation platform that enables consistency, reusability, and quality, all with an easy, enjoyable developer experience.
Cost / License
Freemium (Subscription)
Open Source
Application type
API Client
Origin
United States
Platforms
Mac
Windows
Linux
Online
Is Stoplight a good alternative to Postkit?
ApiOpenStudio
2 likes
Api Open Studio allows you to quickly create and manage APIs with full business and processing logic and user management, using low-code. As a result, you can save important time and money by dedicating your resources on other tasks, while at the same time maintaining the...
Cost / License
Free
Open Source
Origin
United Kingdom
Platforms
Self-Hosted
Docker
Is ApiOpenStudio a good alternative to Postkit?
ApiOpenStudio is the most popular Self-Hosted alternative to Postkit.
ApiOpenStudio is Free and Open SourcePostkit is Free and Proprietary
ApiOpenStudio is Privacy focusedPostkit is not according to our users
Apiary
5 likes
Apiary allows you to create documentation for RESTful APIs.
Cost / License
Pay once
Proprietary
Origin
United States
Platforms
Online
Is Apiary a good alternative to Postkit?
Apiary is the most popular commercial alternative to Postkit.
Apiary is Paid and ProprietaryPostkit is Free and Proprietary
Apidog
5 likes
Design and debug APIs in a powerful visual editor. Describe and debug easily with JSON Schema support. Apidog is a complete set of tools that connects the entire API lifecycle, helping R&D teams implement best practices for API Design-first development.
42 Apidog alternatives
Cost / License
Freemium (Subscription)
Proprietary
Application types
API Client
HTTP Client
Origin
Singapore
Platforms
Mac
Windows
Linux
Online
+1
Is Apidog a good alternative to Postkit?
ReadMe
4 likes
ReadMe is a completely customizable and collaborative place for dynamic API and/or product documentation. Users can play around with the API right in the docs, automatically generated from a Swagger / OAS file. It also works as a knowledge base platform.
36 ReadMe alternatives
Cost / License
Subscription
Proprietary
Application type
Documentation Generator
Origin
United States
Platforms
Online
Is ReadMe a good alternative to Postkit?
RestCase
1 like
RestCase is a security-focused API development platform that enables its users to rapidly create secure microservices, mock them in order to start testing, monitor APIs and collaborate on their development and testing.
Cost / License
Freemium (Subscription)
Proprietary
Application type
API Client
Platforms
Online
Is RestCase a good alternative to Postkit?
dAPI
1 like
Node.js/JavaScript Dojo API viewer and static API viewer document generator.
Cost / License
Free
Open Source
Platforms
Self-Hosted
Is dAPI a good alternative to Postkit?
Tyk Cloud
2 likes
Tyk Cloud is a full-featured API management platform based around the open source Tyk API gateway, that means you get all the features of the open source version without any of the integration and implementation headaches.
Cost / License
Free
Proprietary
Platforms
Linux
Online
Is Tyk Cloud a good alternative to Postkit?

12 of 18 Postkit alternatives