Open-Source Websites & Tools

ImPlay offers cross-platform desktop media playback built on mpv and ImGui, with scripting and command-line options.

See a likes-to-dislikes ratio bar on YouTube video thumbnails with this Chrome and Firefox extension.

PixivUtil2 is a repository project for downloading images from Pixiv, according to its description.

Twitch Stream & Video & Clip Downloader/Recorder. This GUI downloader helps you download and record Twitch videos, including broadcasts and VODs.

The nsxiv project provides a read-only image viewer derived from the Neo Simple X Image Viewer.

Marquez collects, aggregates, and visualizes metadata about a data ecosystem.

traceAI provides open source tracing for AI applications and frameworks using OpenTelemetry.

Server services can be organized in Homer, a static start page for self-hosted applications.

GNOME developers can experiment with GNOME technologies and prototype GTK interfaces in the Workbench code playground.

Free open-source spreadsheet application for Linux and Unix-like desktops, with formulas, charts and support for several spreadsheet file formats.

An open-source PostgreSQL administration and development interface for database objects and SQL work.

The renamed SQLiteStudio project, offering a desktop interface for SQLite database editing and queries.

An open-source visual comparison and merge tool for text files, folders and version-control work.

An Astro-based documentation website framework with documentation navigation and theme features.

A documentation generator supporting structured references, cross-references and Python API documentation workflows.

A Windows text-expansion application using keyword and snippet combos; the project is in maintenance mode.

A free desktop scanning application with page organization, OCR and searchable PDF output.

A free command-line JSON processor for filters, transformations and scripted data extraction.

A JavaScript API mocking library that shares request handlers between browser development and automated tests.

CoreELEC runs Kodi on low-cost hardware through a “just enough OS” Linux distribution.

A shell that treats each input as structured data instead of raw text streams.

Free DVD authoring application for Linux and Windows that burns DVD video with interactive menus.

H5player enhances audio and video playback on websites, with listed features including playback speed controls, screen capture, and downloads.

MarkD provides live Markdown editing in a browser for writing and previewing documents.