shinshin86

shinshin86 / chrome-on-aituber

Public

Browser-only AITuber chat app built with React and Vite. It uses Chrome Built-in AI (Gemini Nano / Prompt API) for Japanese responses, piper-plus WASM for speech synthesis, and a 4-sprite avatar for lip-sync and blinking animation.

shinshin86.github.iochrome-on-aituber aicharacter aituber
11
0
100% credibility
Found Mar 15, 2026 at 11 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
TypeScript
AI Summary

Browser app creating an animated AI avatar that converses in Japanese, speaks responses, and interacts with live chat from YouTube or Twitch.

How It Works

1
🔍 Discover the AI Avatar App

You find this fun browser app that lets an animated character chat and speak like a real streamer.

2
🖥️ Open in Chrome

Launch the app in Google Chrome and follow simple steps to wake up its smart brain.

3
🤖 Prepare the AI

Click the button to get the AI ready – it downloads what it needs and you're set to talk.

4
💬 Start Chatting

Type a message, hit send, and watch the avatar blink, move its mouth, and reply out loud.

5
🎨 Customize Your Avatar

Upload four pictures to create your own talking character and pick a nice background image.

6
📺 Connect Live Stream

Link to your YouTube or Twitch stream so the avatar reads and responds to viewer comments automatically.

✨ Go Live!

Switch to broadcast mode with a green screen, and your AI avatar chats happily with fans.

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Star Growth

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AI-Generated Review

What is chrome-on-aituber?

Chrome-on-aituber is a browser-only AITuber chat app built with React, Vite, and TypeScript that lets you run a fully local AI avatar for Japanese conversations. It taps Chrome's built-in Gemini Nano via the Prompt API for text responses, piper-plus WASM for speech synthesis, and a 4-sprite avatar with lip-sync animation and random blinking. No servers needed—everything persists in localStorage and IndexedDB, solving the hassle of hosting VTuber bots.

Why is it gaining traction?

It stands out as a text-only browser GitHub app that integrates YouTube Live or Twitch chat pickup via their APIs, feeding comments directly to the AI for real-time replies in broadcast mode with a green screen background. Custom avatars from four uploaded images, adjustable TTS speed, and system prompts make it tweakable without code changes. Devs dig the zero-setup dev server (npm run dev) and cross-origin headers for WASM support.

Who should use this?

Japanese streamers needing an AI sidekick for live chats without cloud costs, VTuber hobbyists prototyping avatars, or frontend devs building browser-based AI companions. Ideal for Chrome 138+ users enabling Gemini flags for on-device inference.

Verdict

Grab it if you're in the niche—solid docs and features work despite 11 stars and 1.0% credibility score, but expect manual TTS asset setup and early-stage tweaks. Maturity is low; fork and contribute for polish.

(198 words)

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