Turn article previews
into AI research briefs

Paste any article URL. Expand searches the web, generates a cited research expansion — no API keys, no setup, no paywall bypass.

✅ Free tier — 3 articles/month 🔒 No API keys needed 📱 Works on any device

This is not a paywall bypass.

Expand does not access, decrypt, reproduce, or circumvent any paid content. It works only with what's publicly visible — the same preview any visitor can see. The paywall barrier remains fully intact. Generated content is AI-original and includes a "Subscribe to this author" link. Read our full legal posture on GitHub.

No setup required

No API keys, no config, no terminal. Paste a URL and go.

Respects paywalls

Uses only publicly visible previews. Never touches paid content.

Cited sources

Every claim backed by numbered references with links, not AI hallucination.

Multi-engine search

Searches Tavily, Exa, and Bocha for comprehensive coverage.

How it works

Five steps, fully automated. One click to start.

Paste URL

Enter any article link — Substack, blog, or news site

Fetch preview

We retrieve the publicly visible article preview

Search web

AI generates focused queries, searches the web

AI expansion

AI writes a comprehensive research brief with citations

Read & share

View the result, copy as markdown, or share the link

What you see on the page

A stepper tracks progress in real time, from URL fetch to finished research brief.

article.example.com

The Future of Semiconductor Packaging

by Jane Chen · Jul 2026 · 8 min read

Advanced packaging technologies like CoWoS and HBM are reshaping how chips are designed and manufactured. As AI workloads demand more memory bandwidth, the industry is racing to...

This article is for paid subscribers
Extract
Queries
3 Search
4 AI
5 Done

Built for readers

A research companion that works with what's publicly visible — the same preview any visitor sees without subscribing.

Web app & extension

Use it in your browser on any device, or install the Chrome extension for one-click automation.

Multi-engine search

Tavily, Exa, and Bocha run in parallel for comprehensive coverage. Every source is cited.

Inline citations

Every claim is marked [1], [2], linked to a References section with title, URL, and domain.

Multi-language

Auto-detect or choose from 8 languages. Search queries and expansion match your preference.

Export & share

Copy as Markdown, export as PDF, or share a unique link to your research brief.

Open source

MIT licensed. Self-host or audit the code on GitHub.

Simple, transparent pricing

Start free. Upgrade when you need more.

Free
$0/mo
3 articles per month
✓ Web app access
✓ Cited sources
✓ 7-day cache
Get started
Pro
$9.99/mo
90 articles per month
✓ Everything in Basic
✓ Multi-language
✓ Export PDF / Markdown
Subscribe
Need more? One-time top-up at $0.99/article when you hit your limit.

Two ways to use Expand

Start on the web, then install the extension for one-click automation.

⭐ Recommended

Web App

Paste any article URL and get instant AI research. Works on any device — desktop, tablet, phone. No install needed.

Open Web App
Power User

Chrome Extension

Automatically detects article previews as you browse. One-click expansion without leaving the page.

Install Extension

Start reading deeper

Free tier, no API keys, respects every paywall.
Turn previews into research in one click.

🚌 Try Expand Now