Browse free open source HTTP Clients and projects for Mac below. Use the toggles on the left to filter open source HTTP Clients by OS, license, language, programming language, and project status.

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  • 1
    Gopeed

    Gopeed

    High speed downloader that supports all platforms

    Gopeed (full name Go Speed), a high-speed downloader developed by Golang + Flutter, supports (HTTP, BitTorrent, Magnet) protocol, and supports all platforms. This project is divided into two parts, the front end uses flutter, the back end uses Golang, and the two sides communicate through the http protocol. On the unix system, unix socket is used, and on the windows system, tcp protocol is used.
    Downloads: 59 This Week
    Last Update:
    See Project
  • 2
    aria2

    aria2

    aria2 is a lightweight multi-protocol & multi-source download utility

    aria2 is a lightweight multi-protocol & multi-source command-line download utility. It supports HTTP/HTTPS, FTP, SFTP, BitTorrent and Metalink. aria2 can be manipulated via built-in JSON-RPC and XML-RPC interfaces. aria2 can download a file from multiple sources/protocols and tries to utilize your maximum download bandwidth. Really speeds up your download experience. aria2 doesn’t require much memory and CPU time. When disk cache is off, the physical memory usage is typically 4MiB (normal HTTP/FTP downloads) to 9MiB (BitTorrent downloads). CPU usage in BitTorrent with a download speed of 2.8MiB/sec is around 6%. aria2 supports The Metalink Download Description Format (aka Metalink v4), Metalink version 3, and Metalink/HTTP. Metalink offers the file verification, HTTP/FTP/SFTP/BitTorrent integration and various configurations for language, location, OS, etc.
    Downloads: 42 This Week
    Last Update:
    See Project
  • 3
    bombardier

    bombardier

    Fast cross-platform HTTP benchmarking tool written in Go

    bombardier is an HTTP(S) benchmarking tool. It is written in Go programming language and uses excellent fast HTTP instead of Go's default HTTP library, because of its lightning-fast performance. With bombardier v1.1 and higher, you can now use the net/HTTP client if you need to test HTTP/2.x services or want to use a more RFC-compliant HTTP client.
    Downloads: 21 This Week
    Last Update:
    See Project
  • 4
    Jellyfin Android TV

    Jellyfin Android TV

    Android TV Client for Jellyfin

    Jellyfin Android TV is a Jellyfin client for Android TV, Nvidia Shield, and Amazon Fire TV devices. We welcome all contributions and pull requests! If you have a larger feature in mind please open an issue so we can discuss the implementation before you start. Jellyfin is the volunteer-built media solution that puts you in control of your media. Stream to any device from your own server, with no strings attached. Your media, your server, your way. Jellyfin enables you to collect, manage, and stream your media. Run the Jellyfin server on your system and gain access to the leading free-software entertainment system, bells and whistles included.
    Downloads: 15 This Week
    Last Update:
    See Project
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  • 5
    Restfox

    Restfox

    Offline-first web HTTP client

    Offline-first web HTTP client. Package available through snap can be installed using sudo snap install restfox. There are precompiled binaries in the releases page.
    Downloads: 13 This Week
    Last Update:
    See Project
  • 6
    Axios

    Axios

    Promise based HTTP client for the browser and node.js

    Axios is a promise-based HTTP client for the browser and Node.js. It makes sending asynchronous HTTP requests to REST endpoints and performing CRUD operations much easier. The Axios library can be used in plain JavaScript or with more advanced frameworks like Vue.js or React.js.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 7

    Feign

    Make writing Java http clients easier

    Feign is a Java to HTTP client binder that was built primarily to make writing Java http clients easier. Inspired by previous projects Retrofit, JAXRS-2.0 and WebSocket, Feign was designed to reduce the complexity that is often involved in binding the Denominator uniformly to HTTP APIs, no matter the ReSTfulness. Feign works by processing annotations into a templatized request, to which arguments are applied in a straightforward manner before output. While it may only support text-based APIs, it simplifies system aspects dramatically and makes it much easier to unit test your conversions. Feign makes use of great tools like Jersey and CXF for writing Java clients for ReST or SOAP services. It also lets you write your own code on top of http libraries, and connects your code to http APIs with little overhead.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 8
    Open Directory Downloader

    Open Directory Downloader

    Indexes open directories

    Indexes open directories listings in 130+ supported formats, including FTP(S), Google Drive, Bhadoo, GoIndex, Go2Index (alternatives), Dropbox, Mediafire, GoFile, GitHub. Written in C# with .NET (Core), which means it is cross-platform! Downloading is not (yet) implemented, but is already possible when you use the resulting file into another tool (for most of the formats). When you are NOT using the self-contained releases, you need to install the latest/current Runtime version of .NET 7.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 9
    undici

    undici

    An HTTP/1.1 client, written from scratch for Node.js

    An HTTP/1.1 client, written from scratch for Node.js. This section documents our most commonly used API methods. Additional APIs are documented in their own files within the docs folder and are accessible via the navigation list on the left side of the docs site. Garbage collection in Node is less aggressive and deterministic (due to the lack of clear idle periods that browsers have through the rendering refresh rate) which means that leaving the release of connection resources to the garbage collector can lead to excessive connection usage, reduced performance (due to less connection re-use), and even stalls or deadlocks when running out of connections.
    Downloads: 7 This Week
    Last Update:
    See Project
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  • 10
    Hetty

    Hetty

    An HTTP toolkit for security research

    Hetty is an HTTP toolkit for security research. It aims to become an open-source alternative to commercial software like Burp Suite Pro, with powerful features tailored to the needs of the infosec and bug bounty communities. Machine-in-the-middle (MITM) HTTP proxy, with logs and advanced search. HTTP client for manually creating/editing requests, and replay proxied requests. Intercept requests and responses for manual review (edit, send/receive, cancel) Scope support, to help keep work organized. Easy-to-use web-based admin interface. Project-based database storage, to help keep work organized.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 11
    VCR.py

    VCR.py

    Automatically mock your HTTP interactions to simplify testing

    Automatically mock your HTTP interactions to simplify and speed up testing. VCR.py simplifies and speeds up tests that make HTTP requests. The first time you run code that is inside a VCR.py context manager or decorated function, VCR.py records all HTTP interactions that take place through the libraries it supports and serializes and writes them to a flat file (in yaml format by default). This flat file is called a cassette. When the relevant piece of code is executed again, VCR.py will read the serialized requests and responses from the aforementioned cassette file, and intercept any HTTP requests that it recognizes from the original test run and return the responses that corresponded to those requests. This means that the requests will not actually result in HTTP traffic, which confers several benefits including:
    Downloads: 5 This Week
    Last Update:
    See Project
  • 12
    WireMock.Net

    WireMock.Net

    WireMock.Net is a product for stubbing and mocking web HTTP responses

    Free and Open Source tool for building mock APIs. Create stable development environments, isolate yourself from flakey 3rd parties and simulate APIs that don't exist yet. WireMock frees you from dependency on unstable APIs and allows you to develop with confidence. It's easy to launch a mock API server and simulate a host of real-world scenarios and APIs - including REST, SOAP, OAuth2 and more. WireMock is a free API mocking tool that can be run as a standalone server, or in a hosted version via the WireMock Cloud-managed service. API mocking involves creating a simple simulation of an API, accepting the same types of request and returning identically structured responses as the real thing, enabling fast and reliable development and testing.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 13
    Faraday

    Faraday

    Simple, but flexible HTTP client library, with support for backends

    Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters (such as Net::HTTP) and embraces the concept of Rack middleware when processing the request/response cycle. You probably don't want to use Faraday directly in your project, as it will lack an actual client library to perform requests. Instead, you probably want to have a look at Awesome Faraday for a list of available adapters. The best starting point is the Faraday Website, with its introduction and explanation. This library aims to support and is tested against the currently officially supported Ruby implementations. This means that, even without a major release, we could add or drop support for Ruby versions, following their EOL. Currently that means we support Ruby 2.6+. You can also install the faraday_middleware extension gem to access a collection of useful Faraday middleware.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 14
    HTTP Client

    HTTP Client

    Async HTTP/1.1+2 client for PHP based on Amp

    This package provides an asynchronous HTTP client for PHP based on Amp. Its API simplifies standards-compliant HTTP resource traversal and RESTful web service consumption without obscuring the underlying protocol. The library manually implements HTTP over TCP sockets; as such it has no dependency on ext/curl. Streams entity bodies for memory management with large transfers. Supports all standard and custom HTTP method verbs. Simplifies HTTP form submissions. Implements secure-by-default TLS. Supports cookies and sessions. Functions seamlessly behind HTTP proxies. Additionally, you might want to install the nghttp2 library to take advantage of FFI to speed up and reduce the memory usage on PHP 7.4. More extensive code examples reside in the examples directory.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 15
    HTTPX

    HTTPX

    A next generation HTTP client for Python

    HTTPX is a fully featured HTTP client for Python 3, which provides sync and async APIs, and support for both HTTP/1.1 and HTTP/2. HTTPX should currently be considered in beta. A 1.0 release is expected to be issued sometime in 2021. International domains and URLs, keep-alive and connection pooling, sessions with cookie persistence, browser-style SSL verification. Basic/digest authentication, elegant key/value cookies, automatic decompression. Automatic content decoding, unicode response bodies, multipart file uploads, HTTP(S) proxy support. Connection timeouts, streaming downloads, .netrc support, and chunked requests. For more advanced topics, see the Advanced Usage section, the async support section, or the HTTP/2 section. The Developer Interface provides a comprehensive API reference.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 16
    RESTinio

    RESTinio

    HTTP/WebSocket server C++14 library

    RESTinio is a header-only C++14 library that gives you an embedded HTTP/WebSocket server. It is based on the standalone version of ASIO and is targeted primarily for the asynchronous processing of HTTP requests. Since v.0.4.1 Boost::ASIO (1.66 or higher) is also supported. Consider the task of writing a C++ application that must support some REST API, RESTinio represents our solution for that task. Server runs on the main thread, and responds to all requests with a hello-world message. Of course, you've got access to the structure of a given HTTP request, so you can apply complex logic for handling requests. Async request handling. Cannot get the response data immediately? That's ok, store the request handle somewhere and/or pass it to another execution context and get back to it when the data is ready.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 17
    Retrofit For Dart

    Retrofit For Dart

    Retrofit.dart is an dio client generator using source_gen

    retrofit.dart is a type conversion dio client generator using source_gen and inspired by Chopper and Retrofit. If you want to parse models on a separate thread, you can take advantage of the compute function, just like Dio does when converting String data responses into json objects. Avoid using Map values, otherwise, multiple background isolates will be spawned to perform the computation, which is extremely intensive for Dart.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 18
    TinyGSM

    TinyGSM

    A small Arduino library for GSM modules, that just works

    A small Arduino library for GSM modules that just works. This library is easy to integrate with lots of sketches that use Ethernet or WiFi. PubSubClient (MQTT), Blynk, HTTP Client, and File Download examples are provided. Arduino GSM library uses 15868 bytes (49%) of Flash and 1113 bytes (54%) of RAM in a similar scenario. TinyGSM also pulls data gently from the modem (whenever possible), so it can operate on very little RAM. Now, you have more space for your experiments. TCP (HTTP, MQTT, Blynk, ...) All modules support TCP connections. Most modules support multiple simultaneous connections. TCP and SSL connections can usually be mixed up to the total number of possible connections. Many GSM modems, WiFi, and radio modules can be controlled by sending AT commands over Serial. TinyGSM knows which commands to send, and how to handle AT responses, and wraps that into the standard Arduino Client interface.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 19
    Typhon

    Typhon

    A wrapper around Go's net/http to provide safety and convenience

    Typhon is a wrapper around Go's net/http library that we use at Monzo to build RPC servers and clients in our microservices platform. A wrapper around Go's net/http to provide safety and convenience. At Monzo, Typhon forms the basis of most clients and servers in our microservices platform. Forgetting to body.Close() in a client when the body has been dealt with is a common source of resource leaks in Go programs in our experience. Typhon ensures that – unless you're doing something really weird with the body – it will be closed automatically. Marshalling and unmarshalling request bodies to structs is such a common operation that our Request and Response objects support them directly. If the operations fail, the errors are propagated automatically since that's nearly always what a server will want.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 20
    UBoat HTTP

    UBoat HTTP

    HTTP Botnet

    A proof-of-concept HTTP Botnet designed to replicate a full weaponized commercial botnet. This project should be used for authorized testing or educational purposes only. The main objective behind creating this offensive project was to aid security researchers and to enhance the understanding of commercial HTTP loader-style botnets. We hope this project helps to contribute to the malware research community and that people can develop efficient countermeasures. Written in C++ with no dependencies. Encrypted C&C communications. Persistence to prevent your control from being lost. Connection redundancy (Uses a fallback server address or domain). DDoS methods (TCP & UDP Flood). Task Creation System (Altering system HWID, Country, IP, OS.System). Remote command execution. Update and uninstall other malware. Download and execute other malware. Active as well as a passive key-logger. Enable Windows RDP. Plugin system for easy feature updates.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 21
    dio

    dio

    A powerful HTTP client for Dart and Flutter

    A powerful HTTP client for Dart and Flutter, which supports global settings, Interceptors, FormData, aborting and canceling a request, files uploading and downloading, requests timeout, custom adapters, etc.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 22
    Apisauce

    Apisauce

    Axios + standardized errors + request/response transforms

    Talking to APIs doesn't have to be awkward anymore. Low-fat wrapper for the amazing Axios HTTP client library. All responses follow the same flow: success and failure alike. Responses have a problem property to help guide exception flow, attach functions that get called each request, attach functions that change all request or response data. Detects connection issues (on React Native). The only required property is baseURL and it should be the starting point for your API. It can contain a sub-path and a port as well. The responses are promise-based, so you'll need to handle things in a .then() function. The promise is always resolved with a response object. Even if there was a problem with the request! This is one of the goals of this library. It ensures sane calling code without having to handle .catch and has 2 separate flows.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 23
    Guzzle

    Guzzle

    An extensible PHP HTTP client

    Guzzle is a PHP HTTP client that makes it easy to send HTTP requests and trivial to integrate with web services. Simple interface for building query strings, POST requests, streaming large uploads, streaming large downloads, using HTTP cookies, uploading JSON data, etc... Can send both synchronous and asynchronous requests using the same interface. Uses PSR-7 interfaces for requests, responses, and streams. This allows you to utilize other PSR-7 compatible libraries with Guzzle. Abstracts away the underlying HTTP transport, allowing you to write environment and transport agnostic code; i.e., no hard dependency on cURL, PHP streams, sockets, or non-blocking event loops. Middleware system allows you to augment and compose client behavior.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 24
    HTTP

    HTTP

    Rust HTTP types

    This crate is a general purpose library for common types found when working with the HTTP protocol. You’ll find Request and Response types for working as either a client or a server as well as all of their components. Notably you’ll find Uri for what a Request is requesting, a Method for how it’s being requested, a StatusCode for what sort of response came back, a Version for how this was communicated, and HeaderName/HeaderValue definitions to get grouped in a HeaderMap to work with request/response headers. You will notably not find an implementation of sending requests or spinning up a server in this crate. It’s intended that this crate is the “standard library” for HTTP clients and servers without dictating any particular implementation. Note that this crate is still early on in its lifecycle so the support libraries that integrate with the http crate are a work in progress! Stay tuned and we’ll be sure to highlight crates here in the future.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    HTTPie Desktop

    HTTPie Desktop

    Cross-platform API testing client for humans

    HTTPie Desktop is a graphical API client built on top of the popular HTTPie terminal tool, offering a user-friendly interface for testing and interacting with APIs. It combines the simplicity of HTTPie’s CLI with a modern desktop and web UI for a more visual workflow. Developers can easily build, send, and preview HTTP requests without needing to memorize commands or write scripts. The platform supports organizing work into spaces, collections, and tabs, making it ideal for managing multiple APIs and projects. It also includes AI-assisted features to help streamline request creation and improve productivity. Overall, HTTPie Desktop provides a clean, intuitive, and powerful environment for API development across devices.
    Downloads: 1 This Week
    Last Update:
    See Project
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