Language help that stays in context

Understand more.Stay in context.

Translate selected text, scan images, read PDFs, and follow videos with live translated captions.

Install for Chrome See how it works
Contextualogy showing the contextual meaning of a selected phrase on a webpage
Context-aware meanings Image text capture Local PDF reader Live translated captions

Keep reading. Keep watching.

Contextualogy brings the explanation to the page, so a new word does not become a new tab.

Select something confusing

Highlight a word or phrase on almost any webpage.

Ask from the context menu

Right-click and choose Contextualogy.

Read the meaning in place

A focused explanation appears beside what you were reading.

A contextual definition

Con el tiempo, empezó a entender las bromas sin traducir cada palabra.

con el tiempo

over time; gradually

Here it describes a change that happened little by little.

More than selected text.

Use the same language workflow across articles, screenshots, scanned pages, and videos.

Meaning that fits the sentence

Contextualogy sends the selected text with limited nearby context, helping the answer match the way the phrase is actually being used.

Capture words inside images

Drag a box over a photo or screenshot. OCR runs on your device, then you can translate the recognized text.

Read PDFs locally

Open a PDF in the built-in reader and look up selectable text without uploading the document to Contextualogy.

Your language stays close

Choose the language for explanations, captions, and the extension interface.

EnglishEspañolDeutschFrançaisPortuguês日本語한국어العربية

Follow the stream as it happens.

Contextualogy Live places translated subtitles over the active tab while detecting the spoken language automatically.

You decide when audio startsCapture begins only after you press Start and accept the audio notice.
Captions stay over the videoMove the subtitle box to the part of the screen that works for you.
Usage stays boundedTrial and plan time are metered by short server-authorized windows.
See Live plans
The Contextualogy Live controls inside the extension

Built with clear boundaries.

The extension explains what leaves your device and when.

Local document tools

PDF rendering and image OCR run locally in the extension.

Explicit Live consent

Active-tab audio goes directly to Soniox only after you start Live.

Choose your Live time.

The core extension is free and uses your own supported AI-provider key. Live caption time is a separate metered subscription.

Live Plus

For occasional videos and focused sessions.

$4.99/month

10 hours of Live each month

Live Pro

For regular watching throughout the month.

$9.99/month

25 hours of Live each month

Live Max

For daily captions and longer streams.

$19.99/month

50 hours of Live each month

Live Ultra

For high-volume viewing and intensive study.

$39.99/month

100 hours of Live each month

Pay by card, PayPal, Apple Pay, or Google Pay in your local currency. Taxes are handled at checkout.

Live time is debited in short authorized windows. Used or consumed Live time is not voluntarily refundable, subject to mandatory consumer rights.

Install from the Chrome Web Store.

The extension is available through its official listing. Chrome handles installation, permissions, and future updates.

Install for Chrome

Normal lookups use your Groq API key. Contextualogy Live access is separate.

The Chrome Web Store currently shows the Cozylingo name. It will change to Contextualogy when the finished update is published.

Chrome installation

  1. Open the official listingThe install link on this site opens the live Chrome Web Store listing.
  2. Confirm in ChromeReview Chrome's permission notice, then choose Add to Chrome.
  3. Finish setupAfter installation, the extension opens its setup page.