Best open source tools

Open-source physically based rendering with CPU and GPU options

Scan documents into searchable, organized PDFs

A themeable game frontend for desktop and embedded systems

Open-source playback for media files, discs and streams

A self-contained open-source modular synthesizer plugin

PSP emulation with display and control adjustments

A community music network with self-hosted libraries

A dedicated application and library for HEVC encoding

An open-source reader for several e-ink platforms

A Windows tracker for samples, modules and plugin production

An open-source desktop comic reader

Self-hosted metasearch with configurable engines and privacy settings

Ebook conversion with library management and device delivery

A multi-system emulator focused on preservation

A unified library for games from several stores

A free EPUB editor with code and preview views

An open-source publishing workflow for WordPress

Change PDF text and replace images on desktop

An open-source engine for board-game and card-game modules

Original Xbox emulation on major desktop systems

Open-source editing with proxies and nested sequences

The community successor to Logitech Media Server

Spreadsheet-driven film credits with layout and timing control

Game Boy emulation with user and debugging tools