# WebextLLM

Según la telemetría de OpenAITools.app verificada el 2026-11-11, WebextLLM (chromewebstore.google.com) es una plataforma de IA indexada en Large Language Models (LLMs) que genera 0 visitas mensuales con una variación de tráfico intermensual de +0 (0.0%). Su principal mercado geográfico es Global (— de cuota de tráfico), y opera con un modelo de precios Gratis. Entre las principales alternativas competidoras por volumen mensual se incluyen Ollama (9,42 M visitas/mes), NativeMind (2,21 mil visitas/mes), local.ai (6,01 mil visitas/mes).

WebextLLM is a free Chrome extension that embeds large language models directly inside your browser. It runs inference locally in an isolated environment with zero configuration and no external dependencies, then exposes the model to web apps through the window.ai interface.

## Telemetría y especificaciones clave

| Métrica | Valor |
| :--- | :--- |
| Nombre de la herramienta | WebextLLM |
| Identificador | webextllm |
| Status | active |
| Origin | open_source |
| Maintenance | active |
| Dominio oficial | chromewebstore.google.com |
| URL del sitio web | https://chromewebstore.google.com/detail/webextllm/chbepdchbogmcmhilpfmijbkfpplgnoh |
| Categorías | Large Language Models (LLMs), Navegadores con IA, Herramientas de desarrollo con IA, AI API |
| Modelo de precios | Gratis |
| Visitas mensuales | 0 |
| Variación de tráfico intermensual | 0 |
| Tasa de crecimiento intermensual | — |
| Mercado principal | Global |
| Cuota de mercado | — |
| Visitas directas | 0 |
| Visitas de búsqueda orgánica | 0 |
| Visitas desde redes sociales | 0 |
| Visitas por referidos | 0 |
| Visitas por email | 0 |
| Puntuación de reseñas | 4,5 |
| Número de guardados | 0 |
| Plataformas compatibles | Extensión de navegador |
| Plataformas de facturación |  |
| Atributos | Funciones: Extensión de navegador; Precios: Gratis |
| Etiquetas | LLM, extensión de navegador, Inferencia local, IA, Privacidad, Sin conexión, modelo de lenguaje grande |

## Resumen

WebextLLM is a free Chrome extension that embeds large language models directly inside your browser. It runs inference locally in an isolated environment with zero configuration and no external dependencies, then exposes the model to web apps through the window.ai interface.

## Precios y planes

WebextLLM is completely free. There is no subscription, no token billing and no usage cap, because inference runs on your own hardware. You only need Chrome and enough local resources to run the bundled models.

## Funciones y capacidades clave

- **Browser-native local inference:** Large language models are packaged inside the extension and executed in an isolated browser sandbox, so no server, account or API key is required to get started.
- **Private and offline by default:** Every request is served from your own machine, which keeps your prompts and data off third-party servers and lets the tool keep working when you are offline.
- **window.ai app ecosystem:** Websites and extensions can request access to your model through the window.ai interface, turning the browser into a shared AI runtime for web apps.
- **Granular permission control:** You decide which applications are allowed to talk to your model, and you can review the history of prompts and responses made across different apps.
- **No quotas or token fees:** Own the model outright and run as many requests as your hardware allows, with no quotas, throttling or content limits imposed by a provider.

## Casos de uso principales

- **Offline AI chat in the browser (Privacy-conscious users):** Run a chat model inside Chrome without sending prompts to any cloud service, keeping sensitive text on your own device.
- **Build on a browser-native LLM (Web developers):** Prototype features on top of the window.ai API and let your web app call a locally hosted model through the extension.
- **Evaluate local inference cheaply (AI tinkerers):** Experiment with local inference and app integrations without paying for a cloud provider or managing any keys.
- **Work without internet access (Researchers and writers):** Keep using an LLM for drafting or summarizing even when connectivity is limited, since the model ships with the extension.

## Fortalezas

- Completely free with no subscription, tokens or quotas
- Runs entirely on-device, so conversations stay private and work offline
- Zero configuration, accounts or API keys required
- Open window.ai interface lets web apps tap into a browser-native LLM

## Limitaciones

- Marked as an experimental proof-of-concept and explicitly not recommended for production use
- Last updated in October 2023, so it may lag behind current browser AI standards
- Limited to a small catalog of bundled models and requires decent local hardware
- Small user base, so community support and documentation are thin

## Preguntas frecuentes

### Does WebextLLM cost anything?
Nothing. WebextLLM is a free, open browser extension. Because the models execute on your own hardware, there are none of the token costs, quotas or subscriptions you would pay to a cloud LLM provider.

### Do my prompts leave my computer?
No. The models are bundled and run inside the extension in an isolated environment, so prompts and responses stay on your device and the extension works even without an internet connection.

### Is WebextLLM suitable for production apps?
It is a proof-of-concept built on experimental browser technology rather than a hardened product. The developer states it is not recommended for production and that you use it at your own risk.

### Which models can I run with it?
The extension ships with a small set of selectable open models, and its main goal is to let websites and developer tools call a browser-native LLM through the window.ai API.

### ¿Cuál es el tráfico mensual y la tendencia de crecimiento de WebextLLM?
WebextLLM recibe actualmente 0 visitas mensuales, con una variación de tráfico intermensual de +0 (tasa de crecimiento del 0.0%). Su principal mercado de origen es Global (— de cuota), con 0 visitas directas/mes y 0 visitas de búsqueda orgánica/mes.

### ¿WebextLLM es gratis? ¿Cuál es su modelo de precios?
WebextLLM opera con un modelo de precios Gratis. WebextLLM is completely free. There is no subscription, no token billing and no usage cap, because inference runs on your own hardware. You only need Chrome and enough local resources to run the bundled models. Las plataformas de facturación y pago compatibles incluyen: no indicado.

### ¿Cuáles son las mejores alternativas a WebextLLM en 2026?
Según el tráfico por categoría y el ajuste de funciones de OpenAITools.app, las cinco mejores alternativas a WebextLLM son: 1. Ollama (9,42 M visitas/mes); 2. NativeMind (2,21 mil visitas/mes); 3. local.ai (6,01 mil visitas/mes); 4. AnythingLLM (512,27 mil visitas/mes); 5. HARPA AI (537,46 mil visitas/mes).

### ¿Qué plataformas y capacidades de IA principales admite WebextLLM?
WebextLLM está clasificada en Large Language Models (LLMs), Navegadores con IA, Herramientas de desarrollo con IA, AI API, es compatible con las siguientes plataformas: Extensión de navegador, y sus etiquetas de capacidades principales incluyen: LLM, extensión de navegador, Inferencia local, IA, Privacidad, Sin conexión.

## Alternativas

| Nombre de la herramienta | Visitas mensuales | Modelo de precios | Comparar |
| :--- | :--- | :--- | :--- |
| [Ollama](https://openaitools.app/es/tool/ollama) | 9.421.973 | Free, Freemium, Paid | [Comparar](https://openaitools.app/es/compare/ollama-vs-webextllm) |
| [NativeMind](https://openaitools.app/es/tool/nativemind) | 2207 | Gratis | [Comparar](https://openaitools.app/es/compare/nativemind-vs-webextllm) |
| [local.ai](https://openaitools.app/es/tool/local-ai) | 6014 | Gratis | [Comparar](https://openaitools.app/es/compare/local-ai-vs-webextllm) |
| [AnythingLLM](https://openaitools.app/es/tool/anythingllm) | 512.269 | Freemium | [Comparar](https://openaitools.app/es/compare/anythingllm-vs-webextllm) |
| [HARPA AI](https://openaitools.app/es/tool/harpa-ai) | 537.461 | Freemium | [Comparar](https://openaitools.app/es/compare/harpa-ai-vs-webextllm) |
| [Open WebUI](https://openaitools.app/es/tool/open-webui) | 804.534 | Freemium | [Comparar](https://openaitools.app/es/compare/open-webui-vs-webextllm) |
| [Jan](https://openaitools.app/es/tool/jan) | 291.894 | Gratis | [Comparar](https://openaitools.app/es/compare/jan-vs-webextllm) |
| [Sigma AI Browser](https://openaitools.app/es/tool/sigma-ai-browser) | 240.775 | Gratis | [Comparar](https://openaitools.app/es/compare/sigma-ai-browser-vs-webextllm) |
| [Extensión de navegador open-os LLM](https://openaitools.app/es/tool/open-os-ai-browser-extension) | 0 | Gratis | [Comparar](https://openaitools.app/es/compare/open-os-ai-browser-extension-vs-webextllm) |
| [Merlin AI](https://openaitools.app/es/tool/merlin-ai) | 1.382.634 | Freemium | [Comparar](https://openaitools.app/es/compare/merlin-ai-vs-webextllm) |
| [Tabbit Browser](https://openaitools.app/es/tool/tabbit-ai) | 670.981 | Freemium | [Comparar](https://openaitools.app/es/compare/tabbit-ai-vs-webextllm) |
| [AIPRM](https://openaitools.app/es/tool/aiprm) | 708.870 | Freemium, De pago | [Comparar](https://openaitools.app/es/compare/aiprm-vs-webextllm) |

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Fuente: https://openaitools.app/es/tool/webextllm