Browse free open source Software Testing tools and projects for Windows and Linux below. Use the toggles on the left to filter open source Software Testing tools by OS, license, language, programming language, and project status.

  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • Simplify Purchasing For Your Business Icon
    Simplify Purchasing For Your Business

    Manage what you buy and how you buy it with Order.co, so you have control over your time and money spent.

    Simplify every aspect of buying for your business in Order.co. From sourcing products to scaling purchasing across locations to automating your AP and approvals workstreams, Order.co is the platform of choice for growing businesses.
    Learn More
  • 1
    Puppeteer

    Puppeteer

    Headless Chrome Node.js API

    Puppeteer is a headless Node library that provides a high level API for controlling Chromium or Chrome over the DevTools protocol. It requires zero setup and comes bundled with the Chromium version most suited to it. Puppeteer is headless by default, making it fast to run. However, it can also be set to run full or non-headless Chrome or Chromium, simply set the headless option when launching a browser. Many of the things you can do manually in the browser, you can also do with Puppeteer such as generate page screenshots and PDFs, crawl a Single-Page Application, test Chrome extensions and more.
    Downloads: 22 This Week
    Last Update:
    See Project
  • 2
    Playwright

    Playwright

    Node library to automate Chromium, Firefox & WebKit with a single API

    Playwright is a Node library for automating Chromium, Firefox and WebKit using a single API. It supports headless execution for all these browsers on Linux, macOS and Windows, providing automated web browser interactions that are fast, capable, reliable and ever-green. Playwright enables a broad spectrum of cross-browser web automation capabilities, which are used by Single Page Apps and Progressive Web Apps. These include scenarios that span multiple pages, domains and iframes; emulation of mobile devices, geolocation, and permissions; upload and download files and many more.
    Downloads: 19 This Week
    Last Update:
    See Project
  • 3
    Scrapy

    Scrapy

    A fast, high-level web crawling and web scraping framework

    Scrapy is a fast, open source, high-level framework for crawling websites and extracting structured data from these websites. Portable and written in Python, it can run on Windows, Linux, macOS and BSD. Scrapy is powerful, fast and simple, and also easily extensible. Simply write the rules to extract the data, and add new functionality if you wish without having to touch the core. Scrapy does the rest, and can be used in a number of applications. It can be used for data mining, monitoring and automated testing.
    Downloads: 18 This Week
    Last Update:
    See Project
  • 4
    PM2

    PM2

    Node.js Production Process Manager with a built-in Load Balancer

    PM2 (Process Manager 2) is a production process manager with its own built-in load-balancer for Node.js applications. If you want battle-hardened Node.js applications that can be monitored and kept alive forever, PM2 is the way to go. PM2 lets you manage, maintain and increase Node.js performance. It is constantly assailed by over 1800 tests so you can deliver high quality applications, and deploy confidently and more often. PM2 is cross-platform and arguably the most widely-used process manager for Node.js with over 100 million downloads. Setting it up is easy, it just takes a couple of minutes and one simple command.
    Downloads: 11 This Week
    Last Update:
    See Project
  • Premier Construction Software Icon
    Premier Construction Software

    Premier is a global leader in financial construction ERP software.

    Rated #1 Construction Accounting Software by Forbes Advisor in 2022 & 2023. Our modern SAAS solution is designed to meet the needs of General Contractors, Developers/Owners, Homebuilders & Specialty Contractors.
    Learn More
  • 5
    Playwright for Python

    Playwright for Python

    Python version of the Playwright testing and automation library

    Playwright enables reliable end-to-end testing for modern web apps. Single API to automate Chromium, Firefox and WebKit. Capable automation for single page apps that rely on the modern web platform. Use the Playwright API in JavaScript & TypeScript, Python, .NET and, Java. With Playwright, test how your app behaves in Apple Safari with WebKit builds for Windows, Linux and macOS. Test locally and on CI. Use device emulation to test your responsive web apps in mobile web browsers. Playwright supports headless (without browser UI) and headed (with browser UI) modes for all browsers and all platforms. Headed is great for debugging, and headless is faster and suited for CI/cloud executions. Playwright interactions auto-wait for elements to be ready. This improves reliability and simplifies test authoring. Playwright receives browser signals, like network requests, page navigations and page load events to eliminate the need for sleep timeouts that cause flakiness.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 6

    PyLoris

    A protocol agnostic application layer denial of service attack.

    PyLoris is a scriptable tool for testing a server's vulnerability to connection exhaustion denial of service (DoS) attacks. PyLoris can utilize SOCKS proxies and SSL connections, and can target protocols such as HTTP, FTP, SMTP, IMAP, and Telnet.
    Leader badge
    Downloads: 62 This Week
    Last Update:
    See Project
  • 7
    CEF Python

    CEF Python

    Python bindings for the Chromium Embedded Framework (CEF)

    Python bindings for the Chromium Embedded Framework (CEF). CEF Python is an open source project founded by Czarek Tomczak in 2012 to provide Python bindings for the Chromium Embedded Framework (CEF). The Chromium project focuses mainly on Google Chrome application development while CEF focuses on facilitating embedded browser use cases in third-party applications. Lots of applications use CEF control, there are more than 100 million CEF instances installed around the world. There are numerous use cases for CEF. Use it as a modern HTML5 based rendering engine that can act as a replacement for classic desktop GUI frameworks. Think of it as Electron for Python. Embed a web browser widget in a classic Qt / GTK / wxPython desktop application. Use it for automated testing of web applications with more advanced capabilities than Selenium web browser automation due to CEF low level programming APIs.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 8
    Playwright for .NET

    Playwright for .NET

    .NET version of the Playwright testing and automation library

    Playwright for .NET is the official language port of Playwright, the library to automate Chromium, Firefox and WebKit with a single API. Playwright is built to enable cross-browser web automation that is ever-green, capable, reliable and fast. Cross-browser. Playwright supports all modern rendering engines including Chromium, WebKit, and Firefox. Cross-platform. Test on Windows, Linux, and macOS, locally or on CI, headless or headed. Cross-language. Use the Playwright API in TypeScript, JavaScript, Python, .NET, Java. Test Mobile Web. Native mobile emulation of Google Chrome for Android and Mobile Safari. The same rendering engine works on your Desktop and in the Cloud. Auto-wait. Playwright waits for elements to be actionable prior to performing actions. It also has a rich set of introspection events. The combination of the two eliminates the need for artificial timeouts - the primary cause of flaky tests.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 9
    ciao

    ciao

    HTTP checks & tests (private & public) monitoring

    HTTP checks & tests (private & public) monitoring - check the status of your URL. ciao checks HTTP(S) URL endpoints for a HTTP status code (or errors on the lower TCP stack) and sends a notification on status change via E-Mail or Webhooks. It uses Cron syntax to schedule the checks and comes along with a Web UI and a RESTful JSON API. Create an open-source web application for checking URL statuses with a UI and a REST API which is easy to install and maintain (no external dependencies like Databases, Caches, etc.) in public and private environments.
    Downloads: 5 This Week
    Last Update:
    See Project
  • Turn traffic into pipeline and prospects into customers Icon
    Turn traffic into pipeline and prospects into customers

    For account executives and sales engineers looking for a solution to manage their insights and sales data

    Docket is an AI-powered sales enablement platform designed to unify go-to-market (GTM) data through its proprietary Sales Knowledge Lake™ and activate it with intelligent AI agents. The platform helps marketing teams increase pipeline generation by 15% by engaging website visitors in human-like conversations and qualifying leads. For sales teams, Docket improves seller efficiency by 33% by providing instant product knowledge, retrieving collateral, and creating personalized documents. Built for GTM teams, Docket integrates with over 100 tools across the revenue tech stack and offers enterprise-grade security with SOC 2 Type II, GDPR, and ISO 27001 compliance. Customers report improved win rates, shorter sales cycles, and dramatically reduced response times. Docket’s scalable, accurate, and fast AI agents deliver reliable answers with confidence scores, empowering teams to close deals faster.
    Learn More
  • 10
    VBot

    VBot

    JSON based visual regression testing library

    A visual regression testing library/tool, aims to quickly automate browser-based tests with minimum development overhead. To test flexibly in different testing scenarios, either testing against web UI wired with backends or just static web pages, VBot exposes API to be used with testing frameworks like mocha or ava, etc. Therefore, the test data variables can be updated according to different conditions, in order to decouple from real backends and avoid false negative results.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 11
    Wallaby

    Wallaby

    Concurrent browser tests for your Elixir web apps

    Wallaby helps you test your web applications by simulating realistic user interactions. By default, it runs each test case concurrently and manages browsers for you. Here's an example test for a simple Todo application. Because Wallaby manages multiple browsers for you, it's possible to test several users interacting with a page simultaneously. Read on to see what else Wallaby can do or check out the Official Documentation. Wallaby also requires bash to be installed. Generally, bash is widely available, but it does not come pre-installed on Alpine Linux. If you're testing a Phoenix application with Ecto and a database that supports sandbox mode, you can enable concurrent testing by adding the Phoenix.Ecto.SQL.Sandbox plug to your Endpoint. It's important that this is at the top of endpoint.ex before any other plugs.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 12
    HTTP Prompt

    HTTP Prompt

    An interactive command-line HTTP and API testing client

    HTTP Prompt is an interactive command-line HTTP client featuring autocomplete and syntax highlighting. You'll never have to memorize the whole commands and HTTP headers thanks to autocomplete with fuzzy matching. Improve readability by rendering JSON, HTML and commands with 27 builtin color themes, borrowed from Pygments. Designed to work with and built on top of HTTPie, HTTP Prompt makes a perfect companion for HTTPie. Cookie-based authentication made easy as incoming cookies are automatically set into your next request. With pipelines and output redirection, HTTP Prompt works seamlessly with your existing command line tools such as jq. Specify an OpenAPI/Swagger specification then you'll be able to explore API endpoints with ls like a filesystem.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 13
    Hoverfly

    Hoverfly

    Lightweight service virtualization/ API simulation / API mocking tool

    Hoverfly is a lightweight, open source API simulation tool. Using Hoverfly, you can create realistic simulations of the APIs your application depends on. Replace unreliable test systems and restrictive API sandboxes with high-performance simulations in seconds. Run on MacOS, Windows or Linux, or use native Java or Python language bindings to get started quickly. Simulate API latency or failure when required by writing custom scripts in the language of your choice.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 14
    Wraith

    Wraith

    A responsive screenshot comparison tool

    Wraith is a screenshot comparison tool, created by developers at BBC News. Wraith uses a headless browser to create screenshots of webpages on different environments (or at different moments in time) and then creates a diff of the two images; the affected areas are highlighted in blue. There are two main modes for using Wraith, 'capture' mode and 'history' mode. Wraith has some built-in JavaScript and configuration file templates for you to get started with right away. If you wish to take screenshots of a component rather than the entire page, use casperjs and pass a selector along with your paths. In the 'component' example config, you can see how we specify a component name, domain path and selector we want to capture. All config options will be placed in a YAML config file. You set the headless browser, diff mode, threshold, fuzz amount and screen widths.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 15
    chai

    chai

    BDD / TDD assertion framework for node.js

    Chai is a BDD / TDD assertion library for node and the browser that can be delightfully paired with any javascript testing framework. Chai has several interfaces that allow the developer to choose the most comfortable. The chain-capable BDD styles provide an expressive language & readable style, while the TDD assert style provides a more classical feel. Plugins extend Chai's assertions to new contexts such as vendor integration & object construction. Developers can build their own plugins to share with community or use the plugin pattern to DRY up existing tests. You can also use it within the browser; install via npm and use the chai.js file found within the download. Browse our growing directory of custom plugins & vendor integrations to find the best tool for your needs. Chai has an extensive utility belt for plugin developers. Learn how to build your plugins & share.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 16
    Cinemagoer

    Cinemagoer

    Python package to retrieve and manage data of the IMDb

    Cinemagoer is a Python package useful to retrieve and manage the data of the IMDb movie database about movies, people, characters and companies. Platform-independent, it can retrieve data from both the IMDb's web server and a local copy of the whole db.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 17
    BackstopJS

    BackstopJS

    Catch CSS curve balls

    Visual regression testing for web apps. Supports screen rendering with Chrome-headless. Add your own interactions with the Playwright and Puppeteer scripting. BackstopJS automates visual regression testing of your responsive web UI by comparing DOM screenshots over time.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    httpexpect

    httpexpect

    End-to-end HTTP and REST API testing for Go

    Concise, declarative, and easy-to-use end-to-end HTTP and REST API testing for Go (golang). Basically, httpexpect is a set of chainable builders for HTTP requests and assertions for HTTP responses and payload, on top of net/http and several utility packages. URL path construction, with simple string interpolation provided by go-interpol package. URL query parameters (encoding using go-querystring package). Headers, cookies, payload: JSON, urlencoded or multipart forms (encoding using form package), plain text. Custom reusable request builders and request transformers. Type-specific assertions, supported types: object, array, string, number, boolean, null, datetime. Regular expressions. Simple JSON queries (using subset of JSONPath), provided by jsonpath package. JSON Schema validation, provided by gojsonschema package.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 19
    BenchLab is a Web Application benchmarking framework using real web browsers.
    Downloads: 12 This Week
    Last Update:
    See Project
  • 20
    For further information regarding RTH visit our blog at http://requirementsandtestinghub.wordpress.com/. You can learn more about the history of RTH, the current status and our Demo (Live) system for testing of RTH.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 21
    Proxy Tester is a proxy list tester and then it generates a wpad.dat file you can use for your browser based on working servers. wpad.dat file selects a random proxy server from the list of provided working proxy servers with each connection request.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 22
    PyNuker

    PyNuker

    A stress testing tool written in python.

    PyNuker is a network stress testing tool written in python. Because it is written in python it should run equally well on any system that has Python version 3.x installed. It infinitely(until stopped) sends a string of text via a UDP packet to a target computer or network device in an effort to flood the target with so much useless traffic that it stops responding to valid requests. I digitally sign some files in my releases. If you'd like to verify those signatures, you can find my PGP/GPG keys at: https://marcusadams.me/keys.html If you'd like to donate there's several ways to do so: PayPal: https://paypal.me/gerowen Bitcoin (BTC): bc1q86c5j7wvf6cw78tf8x3szxy5gnxg4gj8mw4sy2 Monero (XMR): 42ho3m9tJsobZwQDsFTk92ENdWAYk2zL8Qp42m7pKmfWE7jzei7Fwrs87MMXUTCVifjZZiStt3E7c5tmYa9qNxAf3MbY7rD LiberaPay: https://liberapay.com/gerowen
    Downloads: 2 This Week
    Last Update:
    See Project
  • 23
    Robot Framework FTP Library

    Robot Framework FTP Library

    FTP client for Robot Framework

    SOURCE CODE MOVED TO https://github.com/kowalpy/Robot-Framework-FTP-Library . NEW RELEASES WILL APPEAR ONLY AT GITHUB AND PYPI. This Python library makes it possible to test or use FTP server using Robot Framework keywords. Together with the library, there are also available project example and keywords documentation created by libdoc. This sourceforge webpage is linked from http://robotframework.org/#test-libraries as external library so it can be considered as the official Robot Framework library.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 24

    minimock

    minimock a tiny http server that always return the same response

    When developing SOA, there is a time when you feel the need to be able to mock a webservice. That's what minimock's used for. running minimock as such minimock 8080 d:/response.xml will start a server listening on port 8080 that will always return the content of the file d:/response. The main advantages of minimock over other similar tools are its ease of use and its the low footprint : * executable is 20k large. (but on win$ it depends on cygwin1.dll that is 2Mb large) * avg memory use is 3/4Mb.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    APIAuto

    APIAuto

    The most advanced tool for HTTP API

    The most powerful and easy-to-use HTTP interface tool for agile development, machine learning zero-code testing, code generation and static inspection, document generation and cursor suspension comments. A one-stop experience integrating documentation, testing, mocking, debugging, and management, as well as efficient and easy-to-use shortcut keys such as one-key formatting, commenting/uncommenting, etc. In terms of common functions, it far exceeds Postman, Swagger, YApi and other open-source and commercial API documentation/testing tools, and can import use cases and documents with one click. Support GET, POST, PUT, PATCH, DELETE, HEAD and other HTTP Method and Content-Type, URL /{Path}/{Variable}. Tencent's internal users include IEG Interactive Entertainment Business Group, TEG Technology Engineering Business Group, CSIG Cloud and Smart Business Group, etc.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • Next