Free Software for Self-Hosted
Apache Hudi
Apache Hudi is a free and open source tool for ingesting and managing storage of large analytical datasets over DFS. With Hudi you can stream and process bid data by an order of magnitude faster than traditional batch processing. Apache Hudi work with Apache Spark and integrates well with third-party services like Amazon EMR, AWS Glue Catalog, AWS Lambda, Hadoop Distributed File System (HDFS), Google Bigtable, WebHDFS and Google Cloud Tasks.
D3.js
With D3.js developers can produce dynamic, interactive data visualizations in web browsers. It's a free and opne-source JavaScript library that combines Scalable Vector Graphics, HTML5, and Cascading Style Sheets standards. The library gives developers the full capability of modern browsers and puts a strong emphasis on web standards.
Prisma
Prisma is a free and open source modern database access layer for TypeScript and Node.js. The software aims to make database access easier with an auto-generated and type-safe query builder that's tailored to your database schema. Prisma is a new take on the traditional ORMs and SQL query builders found in many frameworks and development solutions today. By providing a single access layer that works across databases and technologies Prisma creates what they believe to be the feature of database access and management. Prisma ships with the Prisma Client, a tool that makes it easy to reason about your database queries, so that you can focus on your data and application rather than complex SQL queries or ORM models. With Prisma you can create your own GraphQL or REST API that can access different types of databases including PostgreSQL, MongoDB and MySQL.
GitBucket
GitBucket is a free and open-source Git platform built on the JVM. GitBucket is written in Scala and released under the Apache License Version 2.0.
Lona
Lona is a Python-based web application framework, designed to write responsive web applications. With Lona you can write interactive applications without JavaScript.
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.
Laravel Livewire
Laravel Livewire is a free and open-source, full-stack framework for Laravel that makes building dynamic interfaces simple. The framework allows you to build modern web applications faster, without leaving the comfort of Laravel. In a world where building modern web applications has become significantly more complex over time, Laravel Livewire can facilitate some of the functionallity brough about by frameworks like Angular, React, Vue and Svelte, without having to write JavaScript.
Silex
With Silex you can create websites in the cloud that are based on open standards. Silex is a free and open source website builder that provides tools to build websites without writing code. Silex is suitable for professional and hobbyists alike, and is used by freelancers, agencies, hosting companies and more.
BookStack
BookStack is a free and open-source, self-hosted, easy-to-use platform for documenting, organizing and storing information. BookStack is written in PHP, on-top of the Laravel Framework and can be hosted on most web hosting platforms, VPSs and cloud instances. The software is configurable and allow you to setup BookStack for your particular user case. It allows you to change, the name, logo, theme and registration options. It also provides a page editor with a simple WYSIWYG interface that can be used to edit content by anyone. BookStack is developed as a truly free and open software and is released under the MIT license.
Docz
Docz is a free and open source documentation software that makes it easy to write and publish beautiful interactive documentation for your code. It allows you to create markdown files showcasing your code and Docz turns them into a live-reloading, production-ready site. Docz is powered by GatsbyJS and is highly optimized for fast build times and end-user perfomance, while also allowing you toleverage GatsbyJS's huge ecosystem of plugins and tools. The software is written in TypeScript and Docz provides native TypeScript support for TSX components and can generate documentation from your prop types and comments in your code.