OpenLegacy vs SwaggerHub comparison

OpenLegacy and SmartBear are both solutions in the API Management category. OpenLegacy is ranked #36, while SmartBear is ranked #14 with an average rating of 7.7. OpenLegacy holds a 0.5% mindshare in APIM, compared to SmartBear’s 1.4% mindshare. Additionally, 80% of OpenLegacy users are willing to recommend the solution, compared to 92% of SmartBear users who would recommend it.

OpenLegacy

Read 5 OpenLegacy reviews

466 Views
466 Comparison Views

80% willing to recommend

SwaggerHub

Read 12 SwaggerHub reviews

1,313 Views
1,313 Comparison Views

92% willing to recommend

OpenLegacy

SwaggerHub

Comparison Buyer's Guide

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Executive SummaryUpdated on Dec 17, 2024

OpenLegacy and SwaggerHub compete in the API management space. SwaggerHub seems to have the upper hand due to its feature-rich offerings.

Features: OpenLegacy focuses on seamless integration with legacy systems, enabling smooth digital transformation. It excels in modernizing outdated infrastructures effectively. SwaggerHub offers extensive design and documentation capabilities, which streamline the API development lifecycle. Its versatility in API design and management, with robust documentation tools, stands out by connecting various development stages efficiently.

Room for Improvement: OpenLegacy could benefit from enhancing its user interface to make it more intuitive. Increased support for non-legacy systems would broaden its scope. Further developing analytics features could provide deeper insights. SwaggerHub may improve by reducing its complexity for first-time users. Expanding integration capabilities would enhance its functionality. Improving user guides and tutorials could assist in better user onboarding.

Ease of Deployment and Customer Service: OpenLegacy provides a straightforward deployment process and excellent customer service, making implementation smoother. SwaggerHub offers sophisticated deployment tools but may present a steeper learning curve due to its comprehensive features. Once familiarized, users find its support in API lifecycle management advantageous.

Pricing and ROI: OpenLegacy offers competitive setup costs by delivering significant ROI through efficient legacy system integrations. Its value proposition balances costs with modernization benefits. SwaggerHub, though potentially more expensive upfront, justifies the expenditure with productivity enhancements, especially for teams involved in API design and collaboration. The choice hinges on whether a business prioritizes initial cost savings with OpenLegacy or the long-term productivity offered by SwaggerHub.

To learn more, read our detailed OpenLegacy vs. SwaggerHub Report (Updated: September 2025).

Buyer's Guide

OpenLegacy vs. SwaggerHub

September 2025

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Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Categories and Ranking

OpenLegacy

Ranking in API Management

36th

Average Rating

7.6

Reviews Sentiment

6.2

Number of Reviews

Ranking in other categories

No ranking in other categories

SwaggerHub

Ranking in API Management

14th

Average Rating

7.8

Reviews Sentiment

6.1

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of November 2025, in the API Management category, the mindshare of OpenLegacy is 0.5%, up from 0.2% compared to the previous year. The mindshare of SwaggerHub is 1.4%, up from 1.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.

API Management Market Share Distribution
Product	Market Share (%)
SwaggerHub	1.4%
OpenLegacy	0.5%
Other	98.1%

API Management

Featured Reviews

reviewer1042905

VP, Chief Enterprise Integration Architect at a financial services firm with 10,001+ employees

The biggest advantage is how simple the technology was.

I'd like to see OpenLegacy develop its low-code/no-code (LCNC) solutions. They've expanded somewhat their horizons for integration beyond mainframe CICS, which is their sweet spot. They have some tooling in that area, but it's not as good as it needs to be. OpenLegacy handles the bread-and-butter TP monitoring stuff, but I am working for one of the six banks in the United States still using the Hogan mainframe, which has a slightly proprietary mechanism. But OpenLegacy currently doesn't have a connector for Hogan. So it would help if they could build one. That would appeal to financial institutions that still use Hogan, like US Bank, Wells Fargo, KeyBank, and Vanguard.

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Manish Indupuri

Senior Devops Engineer at a tech services company with 10,001+ employees

Has streamlined API documentation and integration workflows across cross-functional teams

Documenting SwaggerHub has a standard and consistent structure of API definitions, and it automatically generates interactive documentation which helps the developers to understand everything. There are certain areas where SwaggerHub can go beyond here as formatting options for documentation pages are restricted, and the import and export options of API collections are complex in SwaggerHub. It provides various collaboration tools where we can work and do it. The strong validation against the API maintains conformity and reduces errors. That part is very great in SwaggerHub. Overall, scalability and stability-wise, it varies high compared to the competitors, but there are still certain areas where competitors are providing various customizations. SwaggerHub can understand those aspects and implement them as well. The complex import and export of API calls and collaborations can be challenging in SwaggerHub. If they can make it easier for us, that would be great. Their performance is degraded if there is too much load on the API. The customization and doc formatting options for documentation pages are restricted in SwaggerHub. A few of my teammates have complained that they find the UI unintuitive where it requires multiple clicks for simple tasks. SwaggerHub is a great tool, but these limitations can be addressed to make things better and easier.

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Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Pros

"It is possible to solve larger legacy API issues on an enterprise level with this product."

"Using mainframe programs (not screens), the OpenLegacy services do not require any changes by the mainframe programmers, thus reducing development cycles."

"It is possible to connect a service to a mainframe program or back transaction in a matter of minutes or hours at the most."

"Using OpenLegacy, the exposure of services is far easier and quicker. In many cases, exposure of services requires just a few clicks and takes only minutes. In very complex cases, it still only takes half a day. Without OpenLegacy, it would take us several months to create the same services."

"OpenLegacy provides a way to go from the outside world to the legacy mainframe, to move the old standard application to a REST API application. New digital services can be created in a few clicks and this can be done easily by COBOL programmers."

"The biggest advantage of OpenLegacy was how simple the technology was. We were able to build out the OpenLegacy parts very quickly. We put together a couple hundred APIs in six months."

"Opens the door to connect modern web products to an old legacy system."

"OpenLegacy produces a war file which includes everything you need to deploy a Tomcat server."

"The scalability is endless."

"SwaggerHub plays a crucial role in order to bring teams and automate things faster and also reduce the man-hours and increase the work efficiency."

"You can click & play and add the notation in a human-readable form. Spotlight is also very good in the graphical design of APIs."

"One of the best features of SwaggerHub is how it allows me to create APIs and control the evolution of APIs within an organization."

"SwaggerHub has significantly improved how my organization designs, documents, and manages APIs, centralizing API management so that all API definitions are stored in one location, which makes it easy for stakeholders, developers, QA, DevOps, and products to access the latest version."

"The most valuable features are the collaboration between multiple teams and the control and distribution of specifications."

"I rate the solution's stability a ten out of ten."

"It is a stable solution."

More SwaggerHub pros

Cons

"I would like to see SSL out-of-the-box. OpenLegacy certainly does SSL, but it was not the default for our use case. We are currently working with OpenLegacy to cross the SSL bridge and suspect that most users will want to do the same."

"We would also be more than happy if the product had the option to work in the opposite direction – the ability to consume REST/SOW services in the outer world from the mainframe."

"I'd like to see OpenLegacy develop its low-code/no-code (LCNC) solutions. They've expanded somewhat their horizons for integration beyond mainframe CICS, which is their sweet spot. They have some tooling in that area, but it's not as good as it needs to be."

"The pricing of the solution could be more flexible and allow for once-off payment versus annual licensing. This would be more appealing to companies in Latin America."

"Customer support for the product is slow and not very good. It makes using the product difficult if you need help quickly."

"Debugging and logging for programmers could be better."

"SwaggerHub's UI needs to be improved as it looks very old school."

"It could be more intuitive compared to one of its competitors."

"In SwaggerHub, I appreciate that it is a powerful platform for API design and collaboration, but currently, the access control is somewhat limited."

"SwaggerHub could be improved with better integration for tools."

"We have to use additional tools to test APIs."

"More integration and usability with the cloud microservices would be nice"

"It has limited functionality...Unfortunately, some of its features are not what we need."

"The review process should be improved. There seem to be some gaps, at least for us, for the editing part because we would like to have a full request review mechanism. They support some comments, but it is really hard to manage those comments. We would like to use the full request. Therefore, we are now looking to integrate with repositories. It has integration with Bitbucket and GitHub, but we have some internal constraints, and we need to move some of the repositories to GitHub. Our source code is on-premise in Bitbucket, and it was a bit of a problem for us to integrate. Now we are transitioning our repositories to GitHub, and hopefully, we can enable the integration. This will probably solve the problem with the review and approval. Its customization should also be improved. There are limitations around the support for the developer portal. There should be more customization options for the website that you can use as a developer portal. Currently, it has only Swagger UI with minimal customization. You cannot actually add additional pages and documentation for explaining concepts and general things. That's why we have started to look around to see what other tools are doing. They should also allow tagging on the API. We would like to add some tagging on the API to reflect certain things. Currently, any metadata that you would like to have has to be a part of the spec. You cannot do anything else. It should also have support for Open API 3.1, which was released at the beginning of the year. It would be great to be able to switch to that."

More SwaggerHub cons

Pricing and Cost Advice

"The pricing of the solution could be more flexible and allow for once-off payment versus annual licensing. This would be more appealing to companies in Latin America."

"It has a yearly subscription, but I am not sure."

"The tool is cheap."

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Top Industries

By visitors reading reviews

No data available

Financial Services Firm

17%

Computer Software Company

12%

Manufacturing Company

Retailer

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	3
Large Enterprise	8

Questions from the Community

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What do you like most about SwaggerHub?

The tool's most valuable feature is licensing.

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What needs improvement with SwaggerHub?

In SwaggerHub, I appreciate that it is a powerful platform for API design and collaboration, but currently, the access control is somewhat limited. I would love to see enhanced permissions allowing...

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What is your primary use case for SwaggerHub?

I have worked for Arden University, University of Sheffield, and Nanyang Technological University. For those institutions, I used Amazon AppStream for backend validations. When working for Prolific...

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Product Reports

Buyer's Guide

OpenLegacy

October 2025

Download OpenLegacy product report

Buyer's Guide

SwaggerHub

October 2025

Download SwaggerHub product report

Overview

OpenLegacy helps organizations quickly launch innovative digital services by extending their core back-end systems to the web, mobile and cloud in days or weeks versus months. Our microservice-enabled API integration and management software quickly reduces project backlog by automating and accelerating microservices and API creation, deployment, testing and management from core applications, mainframes and databases. Together, business and IT teams can quickly, easily and securely meet consumer, partner or employee demands for digital services without modernizing or replacing core systems, and without special programming skills or invasive changes to existing systems and architectures. OpenLegacy is designed for ongoing management of microservices APIs and is based on open standards, so our software plays nice with your current technology stack and supports agile, DevOps and continuous development. Learn why leading companies choose OpenLegacy at www.openlegacy.com.

OpenLegacy

SwaggerHub is an integrated API Development platform, built for teams, that brings the core capabilities of the Swagger framework to design, build, document and deploy APIs. SwaggerHub enables development teams to collaborate and coordinate the entire lifecycle of an API with the flexibility to integrate with the toolset of your choice.

SmartBear

Sample Customers

Many of openLegacy's global customers are among the Global 100 companies. Review case studies in these industries: Agriculture, Airport Authority, Automotive, Auto, Finance, Insurance, Government, Healthcare, Manufacturing, and Retailwww.openlegacy.com/case-studie...

Sonic, Zuora, Woolworths, CrowdFlower

Buyer's Guide

OpenLegacy vs. SwaggerHub

September 2025

Free Report: OpenLegacy vs. SwaggerHub

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