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Swagger/OpenAPI

API specification and documentation framework using OpenAPI standard

As of 30 August 2026, Swagger/OpenAPI is free to use. Swagger (now OpenAPI Specification) is the industry standard for defining REST APIs. Softwr lists it under APIs. Swagger/OpenAPI is made by SmartBear Software, launched in 2001, available on Web, API, Windows, macOS.

Overview

What Swagger/OpenAPI does

Swagger (now OpenAPI Specification) is the industry standard for defining REST APIs. It provides a framework for designing, building, documenting, and consuming APIs with machine-readable specifications.

What people use it for

  • API Development
  • API Gateway
  • API Testing
  • API Documentation
  • Microservices

The honest half

Where it falls short

Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about Swagger/OpenAPI.

  • The OpenAPI Specification itself is licensed under Apache License 2.0 and free to use; SwaggerHub is a separate paid tool built on top of it

Cross-shopped

What people choose instead of Swagger/OpenAPI

Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.

Pricing

What Swagger/OpenAPI costs

Taken from the vendor's own pricing page. Prices move, so check before you buy.

Open Source

Free

  • OpenAPI specification
  • Community tools

SwaggerHub Free

Free

  • Cloud editor
  • API mocking
  • API testing

SwaggerHub Pro

$75 /mo

  • Team collaboration
  • Advanced mocking
  • Analytics

Capabilities

Features

  • OpenAPI Specification

  • Interactive Documentation

  • Code Generation

  • GitHub

    Integration with GitHub

  • GitLab

    Integration with GitLab

  • Jenkins

    Integration with Jenkins

  • IDE plugins

    Integration with IDE plugins

  • Web support

    Available on Web

  • CLI support

    Available on CLI

  • Desktop support

    Available on Desktop

Answered, with sources

Questions people ask

Each answer names the page it came from, so you can check it rather than take our word for it.

Is Swagger UI free to use?

Swagger UI is an open source tool with source code publicly available on GitHub at no cost. It is one of thousands of free open source projects in the Swagger ecosystem.

Source
What commercial Swagger products are available beyond the open source tools?

Swagger offers Swagger for Teams for streamlined API workflow with interactive editors and hosted documentation, and Swagger Enterprise for organizations needing secure on-premise or cloud-based environments. Specific pricing requires contacting sales.

Source
Are there commercial versions that build on the open source Swagger tools?

Yes, commercial Swagger products integrate the core functionality of Swagger open source tools (Editor, UI, and Codegen) with advanced capabilities for team collaboration, standards enforcement, and enterprise features.

Source
Is there a trial available for Swagger commercial products?

A Start Trial call-to-action is available on the Swagger website, but specific trial duration and terms are not disclosed on the product pages.

Source

Behind it

Who makes Swagger/OpenAPI

Company
SmartBear Software
Based in
Somerville, Massachusetts, USA
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Keep looking

Where to go from Swagger/OpenAPI

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Softwr does not host reviews and shows no star rating for Swagger/OpenAPI, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.

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