Description
Jsonify is a Chrome extension published by Trailing Comma, Inc. Its listed function is narrow and specific: it synchronizes a person's browser cookies with their Jsonify account, so the Jsonify platform can access pages that require the person to be logged in when it collects data on their behalf.
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The broader Jsonify platform, at jsonify.com, describes itself as delivering "reliable datasets from the unreliable web." A person tells its agent, referred to on the site as Jason, what data they need; Jason then reads the relevant websites and apps, checks each row of data, and delivers a verified dataset on a schedule, repairing the pipeline if a source's page structure changes. The site illustrates this with an example of tracking grocery prices across several supermarket websites and apps, publishing a checked dataset each morning to destinations such as Google Sheets, Snowflake or Claude; the company frames this scenario as illustrative rather than a specific customer result. As of this writing, Jsonify's site also states it is launching a new self-serve SaaS version of this platform, with early access available.
On data handling, the developer discloses that user data collected through the extension is not sold to third parties outside approved use cases, is not used or transferred for purposes unrelated to the extension's core function, and is not used to determine creditworthiness or for lending. The Chrome Web Store lists the publisher as having a clean record with no history of policy violations.
The extension itself is small, about 15KB, is available in English (United States) only, and its most recent listed version (2.2) was published in December 2024, with 104 users at the time of writing. The developer is based in Dover, Delaware, and can be reached at [email protected], with jsonify.com listed as the company's website.
On its own, the Jsonify extension only handles cookie synchronization: it does not scrape or transform data by itself. It is best suited to someone who already uses, or plans to use, the separate Jsonify platform and needs it to reach data that sits behind a login.
- CategoryWeb Scraping & Data Extraction
- DeploymentBrowser extension
- PlatformsChrome
Jsonify's Core Features
Syncs the browser's current cookies to your Jsonify account
Lets Jsonify's data agent access authenticated, logged-in pages when building your dataset
Small footprint (about 15KB) with a narrow, single-purpose function
Published by Trailing Comma, Inc. with a clean compliance record on the Chrome Web Store
Data is not sold to third parties or used for unrelated purposes, per the developer's disclosure
Works alongside Jsonify's separate AI agent that builds and maintains scheduled datasets from websites and apps
How to use Jsonify?
Install the extension: Add Jsonify from the Chrome Web Store.
Sign in to Jsonify: Log into your Jsonify account, or create one at jsonify.com.
Sync cookies: Use the extension to synchronize your current browser cookies with your Jsonify account.
Describe your data need: On the Jsonify platform, tell the agent what data to collect and from where.
Receive your dataset: Get verified data delivered on a schedule to destinations like Google Sheets or Snowflake.
Jsonify's Use Cases
- Authenticated page access
- Scheduled price or stock tracking
- App and e-commerce data collection








