Does my writing leave my device?

No. The AI model runs entirely in your browser with WebGPU, so your prompts and text are never sent to a server.

Yes. It uses open-source models (Qwen, Llama, Phi) that run on your device at no cost. The first run downloads the model, which is then cached.

Which model should I pick?

Fast is the smallest and quickest. Balanced and Best are larger and higher quality but take longer to download and run.

AI Writing Studio: Private In-Browser AI Writer, Free

The AI runs 100% in your browser. Your writing never leaves your device.

This tool needs WebGPU. Open it in a recent desktop Chrome, Edge, or Arc to run the AI on your device. Everything else on BeginThings works without it.

Model

Loading the model the first time (cached after).

BeginRooms Pro

Save your drafts and projects, sync across devices, and keep a private history. Your AI still runs on your device.

See Pro

Quick answer: A private AI writing assistant that drafts, rewrites and summarizes text using a language model that runs inside your own browser, so your writing is never sent to a server.

Last updated: July 2026 · Free · Runs entirely in your browser.

A private AI writing assistant that runs on your device

Pick a mode, type or paste your text, and press Generate. The AI Writing Studio helps you chat, write from scratch, rewrite for clarity, summarize, expand, proofread, and shift tone. Unlike cloud writing tools, the language model runs entirely in your browser with WebGPU, so your prompts and drafts never leave your device.

Free and open

It uses open-source models (Qwen, Llama and Phi) under permissive licenses, so it costs nothing to run and there is no signup or watermark. The first time you use a model it downloads and caches, then it is instant. Choose Fast for quick drafts, or a larger model for higher quality when you have time to load it.

What you need

A modern desktop browser with WebGPU, such as recent Chrome, Edge or Arc, and a few hundred megabytes of space for the model. On a browser without WebGPU the rest of BeginThings still works.

Want to clean text before sharing? Use the PII redactor, check length with the word counter, or browse all free tools and the BeginStudio AI suite.

Frequently asked questions

Does my writing leave my device?: No. The model runs entirely in your browser with WebGPU, so your prompts and text are never sent to a server.
Is it free?: Yes. It uses open-source models that run on your device at no cost. The first run downloads the model, then it is cached.
What do I need to run it?: A desktop browser with WebGPU, such as recent Chrome, Edge or Arc, and space for the model.
Which model should I pick?: Fast is smallest and quickest. Balanced and Best are larger and higher quality but take longer to download and run.