Boomerang is an API testing, debugging, and validation tool for REST and SOAP. Its positioning is to let users “quickly complete API testing in the browser.” It is available as a PWA, a Chrome extension, and an Edge extension, with an emphasis on avoiding large desktop clients, requiring no registration, having no cloud dependency, and storing data locally on the user’s device.
In terms of functionality, Boomerang covers the basic needs of an API client: REST/SOAP request testing, OpenAPI/Swagger import, WSDL import and parsing, request generation, Runner, pre-request scripts, and assertions. For teams that still need to maintain SOAP or WSDL, this is a relatively clear differentiator. Its lightweight design is the main selling point—the site claims it is about 500KB compressed—making it suitable for quick API troubleshooting, fast endpoint validation, and avoiding the need to launch heavier desktop tools.
The product uses an annual license model. The Pro page lists a regular price of USD 60, currently discounted to USD 48 per license per year. It includes unlimited WSDL parsing and request generation, unlimited Runner, automatic quick save, and priority support. Payments are processed by PayPal; after purchase, the license key is sent by email. A 7-day refund guarantee is offered for first-time purchases. The pricing is relatively clear, but the limits of the free version are not explained in enough detail in the main copy.
The advantages are its low barrier to entry, browser-based instant access, support for both REST and SOAP, local data storage, and no account requirement. It is friendly to privacy-conscious users or those who do not want to sync API collections to the cloud. The downsides are that the terms indicate it is closed-source licensed software, with modification, distribution, and reverse engineering prohibited. The main copy does not show larger API platform capabilities such as team collaboration, cloud sync, mocks, CI integration, or shared environments. Local data storage also means backups are the user’s responsibility.
Boomerang is better suited to individual developers, backend engineers, testers, and small teams that need to quickly validate REST/SOAP APIs. If your main needs are lightweight debugging and WSDL/SOAP support, it is appealing. If you need enterprise-grade collaboration, permissions, auditing, or an automated testing platform, you may need to evaluate alternatives such as Postman, Insomnia, Hoppscotch, Apifox, or Bruno.
The main copy does not provide information about access from mainland China. Since the product depends on its website, PWA, Chrome/Edge extension stores, and PayPal, domestic users may encounter uncertainty during extension installation or payment. It is recommended to test the website and extension availability before purchasing.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on boomerangapi.com official site.
boomerangapi.com is an Unknown Dev Tools provider. TG4G tracks its product information, an overall rating of 8.0/10, and a China-accessibility score of China direct-connect friendly. Click "Visit Official Site" to reach boomerangapi.com directly.