Appwrite is an end-to-end backend server for Web, Mobile, Native, or Backend apps packaged as a set of Docker microservices. Appwrite abstracts the complexity and repetitiveness required to build a modern backend API from scratch and allows you to build secure apps faster.

Using Appwrite, you can easily integrate your app with user authentication and multiple sign-in methods, a database for storing and querying users and team data, storage and file management, image manipulation, Cloud Functions, and more services.

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.

thumbor is a smart imaging service and enables on-demand cropping, resizing, applying filters and optimizing images.

Cropping photos automatically can be a frustrating experience with severed heads involved. thumbor uses AI for smart detection.

thumbor is an HTTP server and you can create as many different images as you want just by varying path parameters.

picfit is a reusable Go server to manipulate images (resize, thumbnail, etc.).

It will act as a proxy on your storage engine and will be served ideally behind an HTTP cache system like varnish.

It supports multiple storage backends and multiple key/value stores.

Growth Book is an open source experimentation platform designed for companies that want to bring A/B testing in-house, but don't want to build it themselves.

Open Streaming Platform (OSP) is an open-source, RTMP streamer software front-end for Arut's Nginx-RTMP Module. OSP was designed as a self-hosted alternative to services such as Twitch.tv, Ustream.tv, Mixer, and Youtube Live.

OSP uses Python 3, the Flask Micro-Framework, Nginx-RTMP, VideoJS, Bootstrap, and other modules to build a home for your live streams, videos, and community.

Smocker (server mock) is a simple and efficient HTTP mock server. Smocker exposes a configuration user interface and a configuration api to register new mocks.

This is software for collaborative live coding. On one machine, you run an extramuros "server". Then, from as many machines as you like, you use a web browser to connect to the server and code into shared text buffers. Finally, and again from as many machines as you like, your run the extramuros "client" code in order to receive code from the server and pipe it to the language interpreter of your choice (SuperCollider, Tidal, etc). Think of the "client" code as a way for machines to listen in on a public stream of code.

Deno is a simple, modern and secure runtime for JavaScript and TypeScript that uses V8 and is built in Rust.

GoAccess is an open source real-time web log analyzer and interactive viewer that runs in a terminal in *nix systems or through your browser.

It provides fast and valuable HTTP statistics for system administrators that require a visual server report on the fly.

Sympl is a collection of open-source scripts and templates which allow you to automatically and efficiently configure your website and email on a virtual or dedicated Linux server hosting running Debian.

CoolQLCool (CQC) is an open source GraphQL server that allows you to turn websites into GraphQL APIs.

Foreman is a complete lifecycle management tool for physical and virtual servers. We give system administrators the power to easily automate repetitive tasks, quickly deploy applications, and proactively manage servers, on-premise or in the cloud.

Zulip is a powerful, open source group chat application that combines the immediacy of real-time chat with the productivity benefits of threaded conversations.

Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.

It is a great solution for communities and companies wanting to privately host their own chat service or for developers looking forward to build and evolve their own chat platforms.

ORY Hydra is the most popular OAuth 2.0 and OpenID Connect server. It integrates with every identity management and meets or exceeds security best practices.
ORY Oathkeeper is a reverse proxy which checks whether requests to your APIs should be allowed or not. No more adding isAllowed() everywhere in your code.
ORY Keto solves complex permission systems (multi-tenant, attribute-based access control, ...) with access control policies (IAM Policies).
The ORY Security Console connects with your existing ORY Hydra and ORY Oathkeeper isntallation and lets you manage and monitor them through an intuitive UI.

RoadRunner is an open source (MIT licensed), high-performance PSR-7 PHP application server, load balancer and process manager. It supports service model with ability to extend it's functionality on a project basis.

Nuster is a high performance caching proxy server based on HAProxy. It is 100% compatible with HAProxy, and takes full advantage of the ACL functionality of HAProxy to provide fine-grained caching policy based on the content of request, response or server status.

JSON storage bins with schema validation

HashiCorp Terraform enables you to safely and predictably create, change, and improve infrastructure. It is an open source tool that codifies APIs into declarative configuration files that can be shared amongst team members, treated as code, edited, reviewed, and versioned.