Private AI Summarizer
Summarize any text with AI that runs entirely in your browser. Paste an article, contract, or report and get bullet points or a TL;DR — your text is never uploaded.
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AI Summarization Without the Privacy Cost
Every mainstream AI summarizer — ChatGPT, Claude, the "summarize" button in your favorite app — works the same way: your text is uploaded to a server, processed by a large model, and the result is sent back. For most content that is fine. For confidential content, it is a problem: an NDA-bound contract, an internal incident report, unreleased product material, or anything covered by HIPAA or attorney-client privilege should not be uploaded to a third-party AI.
This tool takes a different path. It runs a small but capable language model directly in your browser using WebGPU. Your text is summarized on your own hardware and never transmitted. The first time you use it, the browser downloads the model (cached for next time); after that it works even offline.
The honest tradeoff is capability. In-browser models have a few billion parameters versus the hundreds of billions behind frontier cloud models, so summaries are solid rather than spectacular, and they work best on text up to a few pages. For routine summarization where privacy matters more than the last 10% of polish, that is an excellent trade. When you need maximum quality on non-sensitive text, a cloud model still wins — this tool exists for everything you cannot or should not send to the cloud.
Frequently Asked Questions
Common questions about the Private AI Summarizer
Yes. The AI model runs entirely in your browser using WebGPU — the same technology games use for graphics. Your text is processed locally and never uploaded, not to us and not to any AI provider. This is fundamentally different from ChatGPT, Claude, or any cloud summarizer, all of which send your text to a server. You can confirm it by loading the tool, going offline, and summarizing — it still works once the model is downloaded.
Honest answer: good, not frontier-level. The tool runs small models (1-3 billion parameters) that fit in a browser, versus the hundreds of billions behind ChatGPT or Claude. For straightforward summarization — condensing an article, pulling key points from notes — small models do well. For nuanced analysis of complex or technical documents, a cloud model will be better. The tradeoff you are buying is privacy: nothing leaves your device.
A browser with WebGPU support — Chrome, Edge, or Safari 18+ (Firefox support is in progress) — and a reasonably modern computer. The first time you summarize, the tool downloads a small model (a few hundred MB to ~1 GB) which your browser caches, so subsequent runs are instant. On older or low-powered machines the model runs slowly; our LLM GPU Benchmark tool can tell you how well your hardware handles local models.
Best results come from text up to a few pages (a few thousand words). Small in-browser models have limited context windows, so very long documents may be truncated or lose coherence. For long material, summarize it in sections and then summarize the summaries. The tool shows a word count so you can gauge length.
Privacy and control. If you are summarizing something confidential — a contract under NDA, an internal incident report, medical or legal text, unreleased material — sending it to a cloud AI may violate policy, regulation, or confidentiality. This tool lets you get an AI summary without that exposure. It also works offline once the model is cached, and there is no signup, no API key, and no per-use cost.
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