STRUCTURED EXTRACTION

Make any page ready to use.

Tell StackContext what matters. It reads the current page and returns clean JSON that you can save, share, or send straight into your workflow.

Get the extension →See an example

✓ Your schema✓ Your provider✓ Local history

product.jsonJSON

{
  "title": "Trail running vest",
  "price": { "amount": 89, "currency": "USD" },
  "availability": "in_stock",
  "rating": 4.8,
  "highlights": ["5L capacity", "Hydration-ready"]
}

Extracted from the open pageValid JSON ✓

Useful on the pages you already visitProduct researchDirectoriesArticlesListingsTables

MAKE THE PAGE LEGIBLE

From browser tab to a shape your tools understand.

⌁

Describe the result

Write a plain-language instruction and paste an example JSON shape. The extension uses both as its guide.

✦

Extract the signal

It collects useful page text, headings, links, and your selected text from the current tab.

Keep usable JSON

Review, copy, or download a structured result. Recent extractions stay in local extension history.

YOUR RULES, NOT A FIXED TEMPLATE

Ask for the fields your project actually needs.

Use a small example as your target schema. StackContext fills it from the page, returning null or an empty list when information is unavailable.

titleThe page or item name

summaryA useful description

priceNormalized price and currency

availabilityWhat is in stock or open

linksRelevant destinations

BRING YOUR OWN INTELLIGENCE

Choose where the extraction runs.

Use Codex CLI or Claude Code through the local companion, keep it on-device with Ollama, or connect OpenAI, Anthropic, or a compatible API provider.

Codex CLIClaude CodeOllamaOpenAIAnthropic

START STRUCTURING

One tab in.
Useful data out.

Install StackContext, choose a provider in Settings, then open any page and describe the JSON you need.

Download for Chrome / Chromium ↓Download for Firefox ↓Download local companion For Codex CLI & Claude Code↓