Sites like mybb.com

A beta peer-to-peer tool for sending files directly between browsers, with transfers starting when the recipient opens a link

A World of Tanks statistics and tools site by Skill4ltu, offering tank search, 3D maps, battle replays and a mod

A play-by-post forum roleplay community, Canis RPG, set in a fictional dream world of wolf and animal characters

Crystal Shard is a site of free browser and downloadable games, including puzzle, adventure and RPG titles, with a forum and news

A fan-built fictional space encyclopedia called Cosmosdex, with lore, aliens, planets and user-contributed entries

Open Multiplayer, an open-source multiplayer server software for San Andreas Multiplayer (SA:MP) game clients and scripts

Flarum, an open-source forum software project for building community discussion sites with extensions and themes

Atheos Cloud IDE, a lightweight web-based code editor framework built on Codiad, with documentation on setup and interface

Colorffy, an online tool for generating, customizing and exporting CSS color palettes, gradients and dark UI themes

A French app for menstrual cycle tracking used with natural family planning methods such as Billings and Temperature

A community repository for userscripts, with discussion forums, where users share and install browser scripts

A German news and commentary blog on privacy, digital rights, gaming and surveillance, with a satirical monthly review, Tarnkappe.info

Republic Broadcasting Network, a US talk radio and streaming station whose fundraising pages and on-air programming are its main content

CLEO Library, a scripting library and SDK documentation site for running custom scripts in GTA games without modifying game files

Personal developer site of Bill Thornton, with blog posts on Linux, TypeScript and open-source projects

Open QuarterMaster is an open source inventory management software project with a demo instance and merchandise shop

Gajim, a free desktop chat app for the XMPP messaging protocol, with synchronized chats across devices

FOSS Torrents is a torrent site distributing free open-source software and games, with a torrent-to-magnet converter and a news blog

IM Observatory, a discontinued 2013 security-testing tool by researcher Thijs Alkemade for the Jabber/XMPP instant messaging network

Personal blog and project site by Leo Spratt on self-hosting, tech tools, photography and his music as Spectral Nova

MU Online Fanz is a fan-run guide site covering the Webzen MMORPG MU Online, with characters, items, events and notices

Kanka, a worldbuilding and tabletop RPG campaign management web app built by a three-person team led by Jay, Jon and Kaz

A Polish free file hosting and sharing service called Megawrzuta, with a blog and a text clipboard feature

Open-source software for streaming your own music library from a self-hosted server, with apps and downloads

SuiteCRM, an open source customer relationship management software product for businesses, with downloadable demos and hosted instances

Rapier, a documentation and demo site for the Rust 2D and 3D physics engines developed by Dimforge

MiFirm is a free download site for Xiaomi firmware, MIUI ROMs and related tools, with an IMEI checker

Linuxiac, an English news site covering Linux and open source software, plus guides to distributions like Fedora and Gentoo

Personal site of software engineer Mario Ranftl with notes on software engineering, system design, and web development

A self-hosted, open-source bookmark archive tool called LinkAce, built and documented by its developer, for saving and organizing web links

A rapid-publication journal of astronomical discovery notices, including outburst reports on X-ray binaries and transient sources such as MXB 1730-335

PufferPanel, an open source web panel for installing and managing game servers such as Minecraft and Source dedicated servers

DockSTARTer is a tool and documentation site by its developers for quickly setting up Docker and self-hosted applications on Linux systems

An open source PlayStation 2 emulator project, with a website carrying its blog posts and project information

Expats living in Rome: an English-language community site with blog posts, events, language lessons and housing listings for foreigners in Italy

Free custom content downloads for The Sims 3 and The Sims 4, including Sims, clothing, objects and buildings, in English and French

A community database of Goa and psytrance party events in 35 countries, with news, forums and chats

CubeUpload is an image hosting service that stores uploaded pictures without compressing or altering them, with terms and help pages