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    SwiftSchema

    Free JSON-LD audit tool

    Schema Diff: compare JSON-LD before you publish

    Use this schema diff tool to compare current and proposed structured data, spot missing fields, and catch risky JSON-LD changes before Google or AI answer engines recrawl the page.

    1. 1Paste the current JSON-LD from your page or CMS.
    2. 2Paste the proposed JSON-LD from your generator, editor, or teammate.
    3. 3Review added, removed, and changed fields before publishing.
    4. 4Copy the summary, then run formatter and rich-result eligibility checks.
    Check eligibility nextGenerate better schema

    Free vs Pro workflow

    Start with one manual comparison. Upgrade when you need history, exports, and monitoring.

    The free tool is built for one-off before/after checks. SwiftSchema Pro can turn the same workflow into saved versions, client reports, and future schema drift alerts.

    Schema Diff results

    Compare JSON-LD before publishing, then validate the proposed version with a rich results check.

    Added fields

    • aggregateRating.@type
    • aggregateRating.ratingValue
    • aggregateRating.reviewCount
    • brand.@type
    • brand.name
    • description
    • offers.availability

    Removed fields

    No fields were removed.

    Changed values

    • offers.price

    Warnings

    No core @context/@type warnings detected.

    Format JSON-LDPreview rich-result eligibilityGenerate improved JSON-LD