Treblle is described as 'Federated API Intelligence platform delivering full API visibility, security, and control from one integration point' and is an app in the development category. There are more than 50 alternatives to Treblle for a variety of platforms, including Mac, Linux, Windows, Web-based and Flathub apps. The best Treblle alternative is Grafana, which is both free and Open Source. Other great apps like Treblle are Postman, Insomnia REST Client, Yaak and Hoppscotch.
Eviware, the maker of soapUI, Web Service Testing Leader
soapUI is a tool for functional testing, mainly of web services like SOAP based web services and RESTful web services, but also HTTP based services and JMS Services as well as databases. soapUI is an open source and compl.
United States
Splunk is software that provides unique visibility across your entire IT infrastructure from one place in real time. Only Splunk enables you to search, report, monitor and analyze streaming and historical data from any source.
United States
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.
United States
API testing tool. Which allows web developers to create and test custom HTTP requests.
Poland
EU
FlareCanary monitors REST and MCP endpoints for response schema changes. Point it at any endpoint you don't control, let it build a structural baseline from observed responses, and get alerted when that baseline drifts — before your integration breaks.
United States
HarborClient is a free, open-source desktop API client for macOS, Windows, and Linux. It gives you a familiar Postman-style workspace—collections, environments, request scripts, and a tabbed editor—while keeping your work on your machine or on storage you control.
United States
Cartero is a graphical HTTP client that can be used as a developer tool to test web APIs and perform all kind of HTTP requests to web servers. It is compatible with any REST, SOAP or XML-RPC API and it supports multiple request methods as well as attaching body payloads to...
SpainEU
United States
Serial Studio is an open-source, cross-platform telemetry dashboard and real-time data visualization tool. It supports input from serial ports, Bluetooth Low Energy (BLE), and TCP/UDP sockets. It's ideal for embedded devices, external tools, and network services.
Mexico
Upcoming API testing tool in beta, built in GoLang, supporting HTTP/gRPC, workspaces, environments, request management, and various content types. Features include dark mode, local data storage, Postman import, environment variable setting, and request chaining.
