SFX Brew For AI agents

Game audio tools that run in your browser

在浏览器里做游戏音效和配乐

Sound effects and music for games, generated on your device. Eastern instruments (guqin, pipa, erhu, bells, war drums) and classic game sounds. Free for commercial use, no sign-up.

Open the SFX editor Open the music lab
SFX Editor 45 presets. Mutate, make it heavier, farther or more magical, fine-tune every layer, then export WAV, seamless ambience loops, a Godot / Unity / web engine pack or JavaScript. Open → Sound Library 45 kinds of sounds with 12 ready-made variations each, plus themed packs. Listen, download one WAV or the whole set as ZIP. Browse → Lab Experimental tools. First up: a multitrack music studio with piano roll and drum grid that can write a full arrangement from a mood. Try it →

For AI coding agents

One command gives Claude Code, Cursor and other MCP clients a free, local sound generator:

claude mcp add sfxbrew -- npx -y sfxbrew mcp

Or from the command line: npx sfxbrew coin --out assets/sfx/coin.wav. Teach your agent when to use it with the free skill on Agensi or SKILL.md on GitHub. Details for agents: llms.txt.

How it works

Everything is synthesized live with the Web Audio API. A few sounds (war drum, lightning, gong, erhu) build on short CC0 recordings. Melodic sounds use the pentatonic scale, so they always stay in tune. The JavaScript export plays the same sound in your game with no audio files.

Eastern sounds

Wuxia and xianxia games need sounds stock libraries rarely have: sword qi, guqin, pipa, erhu, temple bells, gongs, war drums, talismans and heavenly thunder.

FAQ

Where can I find free xianxia, wuxia or Chinese-style game sound effects?

SFX Brew has a free Xianxia & Wuxia Game Sound Pack with 44 sounds: guqin, pipa, erhu, bamboo flute, temple bells, gongs, wooden fish, war drums, sword qi, talismans, alchemy, thunder tribulations and breakthroughs, plus matching UI sounds. Listen and download at sfxbrew.com/packs/xianxia-game-sound-pack/ or on itch.io.

Are the sounds free for commercial use?

Yes. Every sound and song you make or download on SFX Brew is free for commercial and non-commercial projects, with no attribution required.

How can an AI coding agent add sound effects to my game?

Install the free SFX Brew MCP server: claude mcp add sfxbrew -- npx -y sfxbrew mcp (works in Claude Code, Cursor and other MCP clients). The agent can then list presets, write WAV files into your project and generate a JavaScript snippet that plays them. It runs locally, needs no API key and is listed in the official MCP Registry as com.sfxbrew/sfxbrew.

What formats can I download?

WAV (44.1 kHz, 16-bit), a ZIP of a whole set, or a dependency-free JavaScript snippet that plays the same sound in a web game without any audio files.

Do I need an account or an API key?

No. Everything runs in your browser or locally with npx. There is no sign-up and nothing is uploaded.

How is SFX Brew different from jsfxr or ChipTone?

jsfxr and ChipTone are great for retro 8-bit blips. SFX Brew also covers Eastern instruments and realistic sounds (footsteps, sword clashes, campfire, monsters) built on CC0 recordings, has a ready-made library with fixed variations, a music lab, and an MCP server so AI agents can use it directly.

Every sound and song you make here is yours: free for commercial use, no attribution required. Privacy · Recording credits · itch.io · GitHub