Gruper

About

Gruper — Smart Tab Grouping for Chrome, Brave & More

  If you've used Arc browser, you know how great automatic tab grouping is. Gruper brings that same experience to Chrome, Brave, Dia, and other Chromium browsers.

  What it does

  Click the Gruper icon or press Alt+Shift+G. Your messy pile of tabs gets sorted into color-coded groups by topic. News tabs go together. Dev tools cluster up. Shopping
  finds shopping. Each group gets a short name and a color so you can scan your tab bar and find what you need.

  Your browser, your choice

  Run locally — no account, no cloud
  Gruper runs an AI model directly on your GPU using WebGPU. Nothing leaves your machine. The model downloads once and caches in your browser. Pick a size that fits your
  hardware:

  - Qwen2.5-7B — best results (default)
  - Llama-3.1-8B — solid all-rounder
  - Qwen2.5-3B — lighter, faster
  - Qwen2.5-1.5B — minimal footprint

  Local models can take up to 30 seconds to generate groupings depending on your GPU and the number of open tabs.

  Or use the cloud
  If you'd rather not use your GPU, plug in an OpenRouter API key and pick from models by Google, Anthropic, OpenAI, Meta, DeepSeek — or type in any model ID OpenRouter
  supports.

  Groups by topic, not domain

  Two GitHub tabs about different projects won't get lumped together. A cooking blog and a recipe site will. Gruper looks at what each tab is about, not just where it's
  hosted.

  What you get

  - One-click grouping or keyboard shortcut (Alt+Shift+G)
  - Named, color-coded tab groups
  - Local-first — your data stays on your machine when using a local model
  - Four local model sizes or unlimited cloud models via OpenRouter
  - The model stays loaded between uses — no waiting around
  - One-click to clear all groups and start fresh

  Privacy

  With a local model, nothing leaves your browser. With OpenRouter, only tab titles and URLs are sent to generate groupings — no history, no cookies, no personal data.

  Requirements

  - Chrome 113+ or a compatible Chromium browser (Brave, Dia, etc.)
  - WebGPU support for local models
  - ~1 GB free GPU memory for the default model

  Note: Gruper needs the Chrome tab groups API. Browsers with custom tab systems (like Arc) are not supported — but then again, Arc already does this natively.