Have you ever deployed a change and wondered "exactly what changed on the page?" DOM Snapshot & Diff answers that question in seconds.

Take a snapshot of the DOM structure of any webpage, then compare it with another snapshot to see exactly what has changed — every element added, every node removed, every attribute modified, all clearly marked with color-coded diffs.

No backend required. Everything is stored on your machine, encrypted.

--- MAIN FEATURES ---

INSTANT DOM SNAPSHOT

Just one click (or Ctrl+Shift+S) to capture the entire DOM tree of any page. The snapshot includes the HTML structure, attributes, and text content — stored locally with AES-256 encryption.

TREE DIFF COMPARISON

Compare two snapshots side by side. See elements added (green), removed (red), modified (yellow), and moved (blue) in an interactive tree view with expand/collapse navigation.

VISUAL OVERLAY DIFF [Pro]

See changes live ON the webpage you’re viewing. Changed elements are highlighted with a colored border right at their location. Hover to see details, click to view the full diff. No more guessing what changed.

ELEMENT PICKER & SELECTOR SCOPING

Don’t need the whole page? Use the visual element picker or enter a CSS selector to capture only the parts you care about — a form, a sidebar, a specific component.

SNAPSHOT MANAGEMENT

Label, rename, search, and sort your snapshots. Track storage usage at a glance. Bulk delete what you don’t need.

REPORT EXPORT [Pro]

Share analysis results. Export the diff results as a standalone HTML report, JSON data, or Markdown — perfect for bug reports, pull requests, and team reviews.

SHORTCUTS

Ctrl+Shift+S to snapshot, Ctrl+Shift+D for quick diff, Ctrl+Shift+O to toggle overlay. Fast workflow for power users.

--- WHY DEVELOPERS LOVE IT ---

- Catch regressions before users encounter them

- Provide evidence for bug reports with clear structural proof

- Compare DOMs between staging and production in seconds

- Track DOM mutations across deployments

- No external server needed — your data never leaves the browser

--- FREE and PRO ---

FREE (forever):

- Up to 10 snapshots

- DOM capture & structural diff

- Locally stored with encryption

- Element picker & selector scoping

- Keyboard shortcuts

PRO ($14.99 one-time payment, lifetime access):

- Unlimited snapshots & storage capacity

- Visual overlay diff on the webpage being viewed

- Export reports (HTML, JSON, Markdown)

- Priority email support

--- PRIVACY & SECURITY ---

- No data transmission — no analytics, no tracking, no external requests

- All snapshots are encrypted with AES-256-GCM before storage

- Sensitive data (passwords, tokens) is automatically stripped

- Minimal permissions: only activeTab, storage, and scripting

- No account needed. No registration required. Just install and use.

--- FOR AI? ---

- Frontend developers checking DOM changes after code edits

- QA engineers testing for regressions across releases

- Tech leads assessing the impact of deployments

- Anyone needing to answer: "What changed on this page?"

--- SUPPORT ---

More information about the extension:

https://smb-base.com/en/application/landing/smb-dsd-ext/dom-snapshot-diff

Chrome web store:

https://chromewebstore.google.com/detail/fhglcikajecklcfdnpgmfkndkebkfbbj?utm_source=item-share-cb

Demo video:

https://www.youtube.com/watch?v=kviW3rIV2sc

Questions or feedback? Contact us at support@smb-base.com

Visit: https://smb-base.com/en/application/smb-dsd-ext/support