Open-Source Websites & Tools

The ultimate community-driven, and open-source competitive rhythm game available on Steam.

Generate complementary color palettes with adjustable brightness and color-mixing modes.

FreeOTP Plus is an Android two-factor authenticator fork with TOTP and HOTP support, import and export options, and token search.

This Android personal finance app is described as local-first, encrypted, self-hosted, and able to sync across devices.

Run an SSH server for chat so users can join a command-line conversation with this project.

The visual layer for Git in your own repos: simulate, record, replay, audit, and share entire Git workflows.

GitHub repository for Cloudflare Tunnel client, licensed under Apache-2.0.

Compare syntax and features across JavaScript web component frameworks in this overview.

Valinor maps input data into strongly typed PHP structures without external dependencies.

SpaceCadetPinball reverse engineers the Windows Space Cadet pinball game and requires original game resource files, which are not included.

Explore open-source projects built by Brazilian developers in this curated repository list.

This repository implements random forest models in Common Lisp for classification tasks.

Tonic helps download, manipulate, and load event-based or spike-based datasets for neuromorphic data workflows.

Websites and services can be monitored with Uptime Kuma, a self-hosted uptime tool.

Use LemmyTools, a Firefox web extension with a suite of tools for the Lemmy platform.

Cross-platform file and folder transfers are handled by Photon, an application built with Flutter and HTTP.

The go-geom package provides geometry types for geospatial applications written in Go.

Libre Hardware Monitor tracks computer temperature sensors, fan speeds, voltages, load, and clock speeds.

World Monitor is a dashboard for real-time news aggregation, geopolitical monitoring, and infrastructure tracking.

Generate a Vim configuration with this community-maintained vimrc setup.

Run Cloudflare’s internet speed test from a terminal and view results in a text interface.

EveryPolitician maps political office-holders across countries and territories, including heads of state, parliamentarians, and officials.

DualWallpaper lets users assign separate wallpapers for light and dark device themes and switch them when the theme changes.

Computer Science Lecture Links collects video lecture links for placement preparation, including C and data structures.