MarmoSet by Null Unit Alternatives

RESTClient can be used to test variety of HTTP communications and RESTful webservices.

SoapUI Pro is one of the most prominent API testing platforms around, allowing developers to quickly prototype the functions of their apps and get them to market with little hassle.

Effortlessly create stunning PDFs and screenshots. Seamlessly store them in your own AWS or Google Cloud Storage bucket, putting the control and creativity right at your fingertips.

Visit website freemium €4.99 / Monthly

Create a free website with Wix.com. Customize with Wix' website builder, no coding skills needed. Choose a design, begin customizing and be online today

WSO2 API Manager is a 100% open source enterprise-class solution that supports API publishing, lifecycle management, application development, access control, rate limiting and analytics in one cleanly integrated system.

Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.

Turn any website into an API

You don't need another CMS. You need a better way to manage content — unified, structured, and ready to deploy to any digital channel.

An open source Firebase alternative

Open Source

Microsoft Visual Studio is an integrated development environment (IDE) from Microsoft.

Etebase makes it easy to build end-to-end encrypted applications by taking care of the encryption and its related challenges.

Open Source

Android development environment based on IntelliJ IDEA

Backendless is a mobile Backend as a Service (mBaaS) platform.

Open Source

Collaborative design, instant API mock, generated documentation, integrated code samples, debugging and automated testing