Top 18 Open-source Free Flutter Desktop Apps in 2025 and why You should check them out?
Why Flutter Is the Future of Desktop & Mobile App Development (And Why It Beats React Native)
If you’re building apps today, whether for desktop, mobile, or both, you’ve probably heard of Flutter. But what exactly is it? And why is it becoming the go-to framework for developers worldwide?
Flutter is Google’s open-source UI toolkit that lets you build beautiful, natively compiled applications for mobile, web, and desktop from a single codebase. With Dart as its language, Flutter delivers pixel-perfect performance, smooth animations, and stunning visuals, all without compromising speed or stability.
So why does using Flutter for desktop apps matter now more than ever?
With remote work, digital transformation, and demand for cross-platform tools on the rise, developers need frameworks that are fast, reliable, and future-proof. That’s where Flutter shines.
Unlike older hybrid solutions like React Native, which often struggle with performance, inconsistent UIs, and platform-specific bugs, Flutter runs on its own rendering engine. This means your app looks and feels native on Windows, macOS, Linux, iOS, and Android, no compromises.
But here’s the real game-changer: Flutter isn’t just good for mobile anymore. It’s built to scale. Whether you're creating a lightweight utility tool or a full-featured desktop application, Flutter delivers high stability, responsive design, and consistent behavior across devices.
And now, let’s talk about the ecosystem. Flutter has one of the largest developer communities in the world, backed by Google and countless contributors. Thousands of libraries, plugins, and packages are available, from authentication and file handling to advanced UI components and machine learning integration.
Flutter VS Tauri
When compared to alternatives like Tauri, which focuses on lightweight, secure desktop apps using web technologies, Flutter wins in terms of visual quality, animation support, and overall developer experience.
Tauri is great for minimal, web-based apps, but if you want rich, interactive, high-performance desktop experiences, Flutter is unmatched.
Flutter History on Medevel.com
We’re deep into covering Flutter apps, libraries, and frameworks because we believe in its power to build stable, beautiful, and scalable applications, not just for mobile, but for the desktop too.
From productivity tools to creative software, Flutter is proving time and again that it can deliver responsive, performant, and visually stunning apps, all while keeping development fast and unified.
Whether you're a solo dev or part of a team, Flutter gives you the tools, community, and confidence to build apps that last.
1- Rust Desk
RustDesk is a free, open-source remote desktop solution built from the ground up for privacy, performance, and self-control. Think of it as TeamViewer on steroids, but without the surveillance or subscription fees.
Unlike proprietary tools, RustDesk lets you host your own server, giving you full ownership of your data, connections, and infrastructure. Whether you're supporting a friend, managing a home lab, or remotely accessing your office PC, RustDesk puts you in charge.
Hazem Abbas
rustdesk
2- PocketLLM
PocketLLM is a powerful, cross-platform AI chat application built with Flutter that brings the power of large language models to your pocket. What makes PocketLLM unique is its ability to download and run AI models directly on your mobile device or connect to locally hosted models on your computer.
Mr-Dark-debug
3- Keyviz (Visualize your Keystroke)
Keyviz is a free and open-source software to visualize your keystrokes and mouse actions in real time! Let your audience know what handy shortcuts/keys you're pressing during screencasts, presentations, collaborations, or whenever you need it.
But, to be honest, I used it on macOS and I was not impressed!
3- API Dash
API Dash is a beautiful AI-powered open-source cross-platform (Desktop & Mobile) API Client built using Flutter which can help you easily create & customize your HTTP & GraphQL API requests, visually inspect responses and generate API integration code. A lightweight alternative to postman/insomnia.
Hazem Abbas
foss42
4- Biyi
Biyi is a convenient translation and dictionary app written in Flutter. It works on Windows, Linux and macOS!
lijy91
5- harmonoid
Harmonoid is a sleek, modern music player that brings beauty and simplicity to your audio experience. Play, organize, and enjoy your library with smooth performance across macOS, Windows, Linux, and Android. Clean design, rich features, and pure sound, music made joyful.
harmonoid
6- Flut Renamer
Flut Renamer is a fast, Flutter-powered tool for batch renaming files and folders with ease. Insert text, metadata, Exif data, replace or delete content, rearrange names, and more, all in seconds.
It is inspired by the German word Flut (flood), it handles massive renames like a tidal wave. Simple, powerful, and perfect for organizing your digital library without manual hassle.
Hazem Abbas
7- AppFlowy
AppFlowy is the AI workspace where you achieve more without losing control of your data.
Hazem Abbas
8- AirDash File Sharing
AirDash File Sharing is a fast, secure, and cross-platform tool for sending files of any size across devices, no limits, no fees. Available on iOS, macOS, Android, Windows, and Linux, it lets you share photos and files instantly using the native share sheet or drag-and-drop.
With end-to-end encryption, transfers happen directly between devices, no cloud storage, no network restrictions. Automatically uses the best connection available, whether Wi-Fi, mobile data, or Ethernet. Simple, private, and free forever.
Hazem Abbas
9- Spotube
Spotube is a free and open-source An open source, cross-platform music client, utilizing selected music provider API and YouTube®, Piped.video or JioSaavn as an audio source
Its features include:
- No ads, thanks to the use of public & free music metadata providers and YT Music APIs¹
- Freely downloadable tracks
- Cross-platform support
- Small size & less data usage
- Anonymous/guest login
- Time synced lyrics
- No telemetry, diagnostics or user data collection
- Native performance
- Open source/libre software
- Playback control is done locally, not on the server
Hazem Abbas
10- ReVanced Manager
ReVanced Manager is a simple, portable Android app that uses ReVanced Patcher to customize popular apps. Easily apply patches, customize settings like API sources, signing keys, themes, and language, and enjoy a clean, intuitive UI. Perfect for users who want control over their Android apps — all in one lightweight tool.
ReVanced
11- CrossCraft: The Ultimate File Copying Tool
CrossCraft is a lightweight, cross-platform file copying tool built with Flutter. Easily select and copy content from multiple text files in seconds. Perfect for developers and students.
CrossCraft is fast, customizable, and free of clutter, boost your productivity without the hassle.
redamigo63
12- pedax
pedax is a sleek Reversi board GUI powered by edax, the world’s strongest Reversi engine. Available on Mac, Windows, and Linux — installable via App Store or Microsoft Store. View real-time evaluation scores, customize settings like book paths and search levels, and enjoy bilingual support (English/Japanese). Play smarter, anywhere.
sensuikan1973
13- CopyCrafter
CopyCrafter is a free and open-source desktop application for macOS and Windows that helps browse folders and copy file contents to the clipboard, designed specifically for feeding code into LLMs without manual file-by-file copying.
If you are interested about this amazing app feature, you can check at this list:
- Folder Selection: Pick a folder to browse its contents
- Tree View: View all files and subfolders in a hierarchical tree structure
- File & Folder Selection: Select multiple files and folders using checkboxes
- Clipboard Copy: Copy the contents of all selected files and folders to clipboard
- Special File Handling: Skip the first X lines from certain file types (e.g., copyright headers in .swift, .m, and .h files)
- Search Functionality: Quickly find files by name or content within your project
- Multi-Project Support: Automatically detects and provides structured views for various project types:
- Xcode Projects: View files in the same hierarchical structure as in Xcode
- .NET Projects: Parse .csproj, .vbproj, and .sln files
- Android Projects: Organize Android project files in a logical structure
- Flutter Projects: Display Flutter project components in an organized way
- Privacy-Focused: Completely offline with no analytics or tracking
nesimtunc
14- Reducio (Compress Video and Audio)
Reducio is a lightweight desktop app to compress videos and remove audio. Works offline. Just drag, drop, done.
CITIZENDOT
15- Gopeed (Download Manager)
Gopeed (full name Go Speed), a high-speed downloader developed by Golang + Flutter, supports (HTTP, BitTorrent, Magnet) protocol, and supports all platforms.
In addition to basic download functions, Gopeed is also a highly customizable downloader that supports implementing more features through integration with APIs or installation and development of extensions.
It is built using Golang and Flutter.
16- Pikapika (Comic Browser)
Pikapika is a free open-source comic and manga file browser that enables you to preview, read manga locally or on your mobile phone. It also works on mobile (Android, and iOS) and run on Windows, macOS, and Linux.
niuhuan
17- immich
immich is a free and open-source app that enables you to self-host photos, and videos and manage them locally or on a server. Its client app is written using Flutter and it works smoothly on Android, Desktop as well as iOS.
Hazem Abbas
18- LocalSend
LocalSend is a cross-platform app that enables secure communication between devices using a REST API and HTTPS encryption. Unlike other messaging apps that rely on external servers, LocalSend doesn't require an internet connection or third-party servers, making it a fast and reliable solution for local communication.
Written in Flutter, and available for Windows, Linux, macOS, FireOS, Android, and iOS.
Hazem Abbas
