Alternativas open source a Postman

Hoppscotch is an open-source API development ecosystem designed for building, testing, and debugging REST, GraphQL, and real-time APIs. It provides a unified platform that functions across web browsers, desktop applications, and command-line interfaces, allowing developers to manage the entire API lifecycle from a single environment. The platform distinguishes itself through a highly interactive, command-driven interface that utilizes a global spotlight palette and keyboard shortcuts to streamline complex workflows. It supports advanced request manipulation and validation by executing JavaScr

Bruno is a local-first API client designed for building, testing, and managing network requests across a wide range of protocols. By storing all collections and configurations as plain-text files directly on the local filesystem, it enables native version control and offline access, ensuring that project data remains under user control without requiring cloud synchronization. The platform distinguishes itself through a declarative approach to API management, utilizing a domain-specific language to define request parameters and metadata. This architecture supports a robust testing environment

Insomnia is a cross-platform API development environment that integrates a request debugger, schema design tools, a mocking server, and a test automation framework. It provides a unified workspace for sending requests and analyzing responses across REST, GraphQL, gRPC, and WebSocket protocols. The platform enables the design and preview of API specifications through a visual editor and allows for the simulation of backend behavior using mocking tools. It supports organizing and synchronizing API collections via local storage, cloud synchronization, or Git. The suite includes a command-line i

Posting is a terminal-based HTTP request manager designed for developing, testing, and documenting API endpoints. It functions as a keyboard-driven interface that allows users to execute requests, manage collections, and inspect server responses directly within the command line environment. By storing request configurations as plain text files on the local filesystem, the tool ensures that API definitions remain compatible with standard version control systems. The project distinguishes itself by treating API collections as version-controlled assets, enabling users to migrate existing workflo

HTTPie is a command-line HTTP client and REST API testing tool designed for sending requests to web services and APIs. It functions as a JSON-native network client and interactive HTTP debugger, providing a terminal interface for constructing and validating API requests and responses. The tool simplifies the process of interacting with APIs by automatically handling JSON payloads and applying colorized formatting to responses for human readability. It supports the simulation of request generation to verify headers and bodies before they are sent over the network. The project covers a broad r

This project is a terminal-based HTTP client designed for interacting with web services, debugging APIs, and automating network requests. It provides a specialized command-line interface that simplifies the construction of complex HTTP exchanges, allowing users to test and inspect web services directly from the shell. The tool distinguishes itself through a declarative syntax engine that translates shorthand command-line tokens into fully formed HTTP requests, including headers, parameters, and body payloads. It features a modular, plugin-based architecture that enables users to extend core f

Insomnia is a desktop application designed for the design, testing, and debugging of network requests. It serves as a comprehensive environment for managing the API lifecycle, allowing users to draft interface specifications, simulate endpoints, and execute automated testing workflows within continuous integration pipelines. The platform distinguishes itself through a modular, plugin-based architecture that enables the integration of custom scripts and external tools. It supports complex development needs by providing a local-first data persistence model, environment-variable substitution for

Reqable is a cross-platform network debugging tool that functions as an HTTP/HTTPS debugging proxy, a REST API client, and a traffic replay tool. It captures, inspects, and modifies live traffic using a local MITM proxy engine, supports VPN tunnel capture for mobile devices, and provides a Python scripting sandbox for custom traffic processing. The application is available on Windows, macOS, Linux, iOS, and Android. The tool distinguishes itself by combining traffic interception with breakpoint-based request modification, allowing users to pause live HTTP traffic for manual inspection and alt

Newman is a headless API client and command line tool for executing Postman collections. It serves as an API test automation tool and execution engine that allows users to run predefined sets of API requests without a graphical interface. The project differentiates itself as a data-driven testing engine, capable of iterating through request sequences using external JSON or CSV files to validate multiple sets of input values. It also functions as an API execution reporter, utilizing a plugin-based interface to output results in formats such as JSON and JUnit. The tool covers broad capability

This is a desktop HTTP client application used for constructing, sending, and analyzing HTTP and GraphQL requests. It provides a graphical interface for API development and testing, including a dedicated GraphQL client with schema-driven autocomplete and validation. The project features an integrated AI assistant that generates API requests from natural language prompts. It supports a complex organization system of spaces and collections with hierarchical authentication inheritance and recursive variable resolution for dynamic request values. The tool covers a broad range of capabilities, in

http-prompt is an interactive HTTP client and API testing CLI designed for constructing and debugging network requests to REST and GraphQL endpoints. It functions as a command-line request builder and a shell extension built on top of HTTPie. The tool provides an interactive shell interface featuring request autocomplete and real-time syntax highlighting for requests and responses. It incorporates stateful session management to maintain request history and session data across multiple commands. The project covers API request automation and REST API debugging, allowing users to send and verif

xh is a command-line HTTP client used for sending network requests, testing REST APIs, and debugging connections. It functions as a terminal-based tool for executing requests with custom headers and bodies, while providing built-in formatting for network responses. The project includes a generator that converts configured network requests into equivalent shell commands for use in a standard terminal. It also features a response formatter that applies syntax highlighting and custom formatting to response headers and bodies to improve readability. The tool covers a broad range of network capab

HTTPie is a command-line HTTP client and REST API debugger used for sending requests to web services. It functions as a network tool for managing headers, authentication sessions, and file uploads, with a specific focus on the transmission and reception of JSON data. The tool utilizes a custom parsing layer to translate simplified command-line input into structured HTTP parameters. It provides ANSI-based terminal formatting to apply color and structural indentation to raw responses, improving human readability for web debugging. The project covers request construction and previewing, multipa

HTTPie is a command-line HTTP client designed for sending requests to web services and APIs. It functions as a terminal-based web client and JSON API interface, allowing users to interact with RESTful services and download remote files directly from the console. The tool simplifies the interaction with APIs through a custom syntax for argument parsing and automatic JSON payload serialization. It includes a request debugger to verify the structure of a request before transmission and uses ANSI-based formatting to display server responses with color and indentation for improved readability. Th

Wuzz is an interactive command line HTTP client and request inspector designed for capturing, reviewing, and analyzing outgoing network calls and their payloads. It functions as a terminal-based tool for debugging API issues and testing web endpoints. The tool provides specialized filtering for response bodies, using regular expressions and format-specific query syntaxes tailored for JSON and HTML data. It allows for the persistence of captured requests and responses to disk to facilitate the reproduction of network issues and offline analysis. User settings and default request behaviors are

Hurl is a command line HTTP testing tool and REST API test runner that uses a declarative, plain-text format to specify HTTP requests and responses. It functions as a client for continuous integration pipelines, allowing users to describe request sequences without a full programming language. The tool distinguishes itself by sequencing HTTP calls and verifying responses through matchers and variable capture. It maintains a stateful variable store, enabling data extracted from one response to influence subsequent requests within a workflow. The system covers API integration testing and REST w

Swagger UI is an OpenAPI specification renderer and documentation interface that transforms JSON or YAML API definitions into a navigable, searchable website. It functions as an OpenAPI documentation UI and request client, providing a visual catalog for exploring endpoints and sending live HTTP requests to a server using a schema-defined interface. The project distinguishes itself through a plugin-based extension system and a schema-driven UI generation model. This architecture allows for the injection of custom components, state selectors, and helper functions to modify core behavior and lay