AI sound effects, inside the Godot editor
UnlockSFX is a Godot 4 plugin that generates royalty-free, game-ready sound effects from a text prompt, right inside the editor. Variation banks, seamless loops, MP3/WAV — imported straight into res://sfx/.
We've submitted UnlockSFX to the Godot Asset Store and it's currently in review. Until it's live you can install it from GitHub in under a minute — the steps are below.
What you can do
Generate in the dock
A panel docks on the right with the full workflow — prompt, duration, format, variants, looping, a live credit balance, and a Listen preview.
Right-click Quick Generate
Right-click any folder in the FileSystem dock and pick “UnlockSFX: Generate here…” to drop a sound straight into it. (Godot 4.3+)
Variation banks
Generate 2–8 variants and get an AudioStreamRandomizer .tres with no-repeats and pitch variance. Drag it onto an AudioStreamPlayer for instant variety.
Seamless loops
Generate clips with no audible start or end for ambient beds and engine hums that loop forever.
Cleared to ship
Every clip is royalty-free for commercial use with no attribution. One-click Steam AI-disclosure snippet and a provenance record included.
MP3 or WAV
Small and ship-ready, or uncompressed with no MP3 artifacts. Clips import automatically when saved inside your project.
Install in under a minute
1
Get the plugin
Download the latest release from GitHub (Code → Download ZIP), or clone the repo.
2
Copy into your project
Drop the addons/unlocksfx folder into your Godot project so it lives at res://addons/unlocksfx/.
3
Enable it
In Godot, open Project → Project Settings → Plugins and toggle UnlockSFX to Enable. The dock appears on the right.
4
Add your API key
Create a key at unlocksfx.com → Settings → API keys, paste it into the dock, describe a sound, and generate.
Requirements
- Godot 4.3 or newer (the dock works on earlier 4.x; Quick Generate needs 4.3+).
- A free UnlockSFX account and credits — roughly one credit per five seconds of audio.
- Internet access — the editor calls the UnlockSFX API to generate your sounds.
Godot plugin FAQ
How do I install UnlockSFX in Godot?
Today you install it from GitHub: download or clone the repo, copy the addons/unlocksfx folder into your project, then enable UnlockSFX under Project → Project Settings → Plugins. A one-click install from the Godot Asset Store is on the way.
Which Godot versions are supported?
Godot 4.3 and newer is recommended. The dock works on earlier Godot 4.x; the right-click Quick Generate feature needs Godot 4.3+ and disables itself automatically on older versions.
Are the sound effects royalty-free?
Yes. Every clip you generate is cleared for commercial use with no attribution required — the only limit is that you cannot resell the raw audio files on their own. The plugin also gives you a one-click Steam AI-disclosure snippet.
Is the plugin free?
The plugin itself is free and MIT-licensed. Generating sounds uses credits from your UnlockSFX account — roughly one credit per five seconds of audio, and you get free credits to start.
What audio formats can I export?
MP3 or WAV. Sounds saved inside your project import automatically; you can also save to any folder outside the project as raw files.
Add UnlockSFX to your Godot project
Free credits to start. No sound engineer, no royalties, no leaving the editor.