Is FluidVoice Open-Source? License, Source Code, and Usage Rights Explained

Yes, FluidVoice is fully open-source and licensed under the GNU General Public License v3 (GPL-3.0), allowing anyone to view, modify, and redistribute the source code.

FluidVoice is a free, open-source macOS dictation application developed by altic-dev. The project's licensing model and source code availability are clearly documented in the repository, making it easy for developers to understand their rights and responsibilities when using or contributing to the codebase.

FluidVoice Open-Source Status and GPL-3.0 License

The FluidVoice repository explicitly states its open-source nature in the README.md file: "This project is free and open source under GPLv3." This commitment is further detailed in the LICENSE file, which contains the complete GPL-3.0 legal text.

License Transition History

According to both the README.md and LICENSE files in the altic-dev/FluidVoice repository, the project underwent a license change:

• From 2026-02-23 onward: Licensed under GNU General Public License, Version 3.0 (GPL-3.0)
• Versions published before this date: Licensed under Apache License 2.0

This dual-history licensing means older versions of the codebase remain available under the more permissive Apache 2.0 terms, while current and future development follows the copyleft GPL-3.0 terms.

How to Access and Use FluidVoice Source Code

There are multiple ways to obtain FluidVoice depending on your needs: pre-built binaries for end users, or full source access for developers and contributors.

Install via Homebrew (Signed Binary)

For users who want a trusted, code-signed application without building from source:

brew install --cask fluidvoice

Clone and Build from Source

Contributors and developers who need to inspect or modify the source should clone the repository directly:

# Clone the repository

git clone https://github.com/altic-dev/FluidVoice.git
cd FluidVoice

# Open the Xcode project

open Fluid.xcodeproj

# Build with the provided script (debug-signed)

./build.sh

Run the Test Suite

Verify core functionality before contributing or deploying custom builds:

xcodebuild test -project Fluid.xcodeproj \
  -scheme Fluid \
  -destination 'platform=macOS'

Key Source Files in the FluidVoice Repository

Understanding the project structure helps developers navigate the GPL-3.0 licensed codebase:

File	Purpose
README.md	Project overview, installation instructions, licensing details
LICENSE	Complete GPL-3.0 license text
Sources/Fluid/fluidApp.swift	macOS application entry point
Package.swift	Swift Package Manager dependency manifest
Sources/Fluid/ContentView.swift	Main user interface implementation

These files demonstrate the project's transparent open-source structure. The fluidApp.swift file contains the @main app entry point, while ContentView.swift implements the SwiftUI-based dictation interface.

What GPL-3.0 Means for FluidVoice Users

The GPL-3.0 license imposes specific requirements on anyone distributing modified versions of FluidVoice:

• Source code must be provided when distributing binaries
• Modifications must be licensed under GPL-3.0 (copyleft provision)
• Patent rights are explicitly granted to users
• Anti-tivoization provisions protect users' rights to run modified versions

This licensing choice ensures FluidVoice remains permanently free and open-source, preventing proprietary forks that could deprive users of the freedoms the original authors intended.

Summary

• FluidVoice is open-source: Fully available on GitHub under the altic-dev organization
• Current license is GPL-3.0: Effective from February 23, 2026 onward
• Historical license was Apache 2.0: For versions released before the transition date
• Source code is complete: All build files, tests, and documentation are publicly accessible
• Contributions are welcomed: The repository includes build scripts and test suites for developers

Frequently Asked Questions

Can I use FluidVoice in a commercial project?

Yes, GPL-3.0 permits commercial use. However, if you distribute modified versions of FluidVoice, you must release your source code under GPL-3.0 as well. Merely using the application for dictation does not trigger the copyleft requirements.

Why did FluidVoice switch from Apache 2.0 to GPL-3.0?

The README and LICENSE files indicate the change effective February 23, 2026, but do not specify rationale. The GPL-3.0's stronger copyleft protections suggest the maintainers wanted to ensure derivative works remain open-source.

Where is the FluidVoice license file located?

The complete GPL-3.0 license text resides in the repository root as LICENSE. A summary statement also appears in README.md section 23, which discusses the project's open-source philosophy.

Is the FluidVoice Homebrew cask also open-source?

The Homebrew cask distributes pre-built, code-signed binaries. While the binaries themselves are compiled code, they are built from the GPL-3.0 licensed source. The cask formula is maintained by Homebrew and separately licensed under the BSD 2-Clause license.

{
  "mcpServers": {
    "instagit": {
      "command": "npx",
      "args": ["-y", "instagit@latest"]
    }
  }
}