Top CROSS-PLATFORM GitHub Repositories & Tools (2026)

Speed up downloads by combining multiple network connections in parallel

Built from the ground up for speed. Flectar Mail delivers native performance, instant startup, and as little as 20 MB of RAM.

Voice-to-text dictation app with local (Nvidia Parakeet/Whisper) and cloud models (BYOK). Privacy-first and available cross-platform.

Spotify, native and fast. One lightweight Rust app for your whole library, local playback, and Spotify Connect on Linux, macOS, and Windows.

Flutter makes it easy and fast to build beautiful apps for mobile and beyond

💥 Blazing fast terminal file manager written in Rust, based on async I/O.

Self-developed dual-mode Bluetooth stack in standard C++. Cross-platform for Windows, Android, Linux and RTOS. Modular design with thread-pool scheduler. Inter-module message delivery, serial execution to reduce locks. Features HCI, L2CAP, QoS, extended flow spec, packet validation and state machines. Support feature trimming for embedded & PC.C.

Get tasks and ideas out of your head. A free GTD to-do app for desktop and mobile. Works offline, no account needed

✨ Zero-config AI chat assistant. No API key needed — sign up and instantly chat with GPT-5, Claude 4, Gemini 2.5, DeepSeek & 100+ top models. Pay-as-you-go saves you more. Available on Web, iOS, macOS, Android, Linux, Windows.

Custom GeForce Now Client Named OpenNOW

Cross-platform native GUI library for 🦀 Rust

A framework for building native applications using React

The local-first AI assisted research workspace for scientific writing & publishing. Research, Write, Compile, Verify and Publish in LaTeX • Typst • Markdown • Git-native • Open Source • Desktop Performance

A modern and intuitive terminal-based text editor

Empower the Web community and invite more to build across platforms.

:electron: Build cross platform desktop apps with ASP.NET Core (Razor Pages, MVC, Blazor).

static analysis of C/C++ code

SkiaSharp is a cross-platform 2D graphics API for .NET platforms based on Google's Skia Graphics Library. It provides a comprehensive 2D API that can be used across mobile, server and desktop models to render images.

Vifm is a file manager with curses interface, which provides Vim-like environment for managing objects within file systems, extended with some useful ideas from mutt.

Cross-platform text editor, written in Free Pascal