Home / AI / AI Summarizer

AI Summarizer

Summarize PDFs, Word files and long text on your device, as paragraphs or key points.

Free, no uploads, no sign-up. Runs 100% in your browser.

How AI Summarizer works

Quick summary uses DistilBART CNN (about 300 MB) through Transformers.js. Key points use a small instruction model. A small instruction model (Qwen2.5 Instruct, Apache-2.0) runs fully in your browser with Transformers.js, on WebGPU when available and on the CPU otherwise. The model downloads once and is cached.

Input: PDF, DOCX, EPUB, TXT, MD, HTML, RTF, ODT. Output: TXT.

How to use AI Summarizer

  1. Open AI Summarizer and add your file or input.
  2. Pick the options you need. Everything runs on your device.
  3. Press the main button and download the result.

Tips

  • Nothing is uploaded. Your files stay in this browser tab.

AI Summarizer FAQ

Are my files uploaded?
No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.
Is it free? Are there limits or watermarks?
Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.
Does it work offline?
Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.

Related tools

OpenFile runs in your browser. Turn on JavaScript to use the tools.