Free Web Development Software
Jekyll
Jekyll is a static site generator written in Ruby. With Jekyll, you can transform your plain text into static websites or blogs. No more database, and cumbersome updates and install, simply focus on your content. In Jekyll, permalinks categories, pages, posts, and custom layouts are factored into the design, so you can get started writing content, right away. For layouts and template, Jekyll uses the Liquid templating language which allow you to design and structure a site to your liking. In a nutshell Markdown, Liquid, HTML and CSS goes in, and out comes a static site ready for deployment.
HTTPie
HTTPie is a command-line HTTP client that makes it easy to interact and work with RESTful APIs. The CLI provided by HTTPie is designed to be as human-friendly as possible and is loved by developers creating services for the web. HTTPie can be used for testing, debugging, and generally interacting with any API and HTTP server.
PocketBase
PocketBase is an free and open source backend in 1 file with real-time database, authentication, file storage and admin dashboard. It's written in the programming language Go and users SQLite as a database. With PocketBase it is super simple to get your backend web application up and running. This allows you as a developer to focus more on the frontend and the content of your application. PocketBase also integrates well with frontend technologies Flutter, Svelte, Angular, React and Vue.
Thunder Client
Thunder Client is a lightweight Http Client extension for Visual Studio Code. With Thunder Client you can develop web services, mock and test APIs without the need to download external software. Thunder Client can simply be installed from the VS Code marketplace for extensions.
Vizzu
Vizzu is a free, open-source Javascript/C++ library utilizing a generic dataviz engine that generates many types of charts and seamlessly animates between them. It can be used to create static charts but more importantly it is designed for building animated data stories and interactive explorers as Vizzu enables showing different perspectives of the data that the viewers can easily follow due to the animation.
Dark Star
Dark Star is a web framework that provides filesystem routing for Starlette and first-class support for server-side rendering. The web framework's routes are defined by their filesystem path and both the route's backend code and template are contained in the first page. Dark Star aims to provide an easy way to create web applications using the HATEOAS and HDA philosophies favoured by htmx. It also aims to reduce the boilerplate code normally needed when creating web apps. In particular, it looks to reduce the need of having a separate files for view functions and templates. It tries to embrace Locality of Behaviour by putting the view function code and template in the same file, and having the file's path be the route used by Starlette to access the code.
WebGL
WebGL is a cross-platform, royalty-free web standard for a low-level 3D graphics API based on OpenGL ES 2.0. WebGL is exposed through the HTML5 Canvas element as Document Object Model interfaces. Allowing developers familiar with OpenGL ES 2.0 to easily understand and recognize WebGL as a Shader-based API using GLSL, with constructs that are semantically similar to those of the underlying OpenGL ES 2.0 API. The WebGL API stays very close to the OpenGL ES 2.0 specification, with some concessions made for what developers expect out of memory-managed languages such as JavaScript.
Redbean
Redbean is an open source web server in a zip executable that runs on six operating systems. the web server embeds Lua, SQLite, and MbedTLS into a fork() driven application server that benchmarks at 1.1 million qps on a personal computer.
Svelte
Svelte introduces a radical new approach to building user interfaces with JavaScript. It is a compile-based component framework that builds efficient code that updates the DOM. Where most traditional frontend JavaScript framework does most of their work in the browser, Svelte includes that work in the compilation process when you build your app. This creates a smaller app which ultimately leads to faster load times and a better experience for the end-user.