Content Preview Helper

Preview content changes on any webpage with JSON-based text replacement

As of June 2026, Content Preview Helper has 30 users in the Developer Tools category.

Usersup 20.0 percent+20.0%
30
30
Ratingno change0%
— reviews
Reviewsno change0%
Version
1.5.0
Manifest V3
90-day change · In the last 90 days this extension 1 version update.

History

9 snapshots

Tracking since Apr 1, 2026.

33.642924.36Apr 1, 2026Jun 6, 2026
View as table
DateUsersRatingReviewsVersion
Apr 1, 2026251.4.0
Apr 16, 2026291.4.0
Apr 24, 2026321.4.0
May 7, 2026331.4.0
May 12, 2026251.4.0
May 18, 20261.4.0
May 24, 2026311.4.0
May 31, 2026281.4.0
Jun 6, 2026251.4.0
Now301.5.0

Permissions & access

Permissions
activeTabstorage
Host access
<all_urls>

Screenshots

Content Preview Helper screenshot 1Content Preview Helper screenshot 2

About

Preview content changes on any webpage with JSON-based text replacement. Perfect for writers, designers, and QA testers.

Detailed Description
Content Preview Helper is a powerful yet simple tool that lets you preview text changes on any webpage using JSON-based instructions.

Key Features:

• JSON-based replacement - Use CSS selectors to target specific elements • Real-time preview - See changes instantly on live webpages • Original text tooltip - Hover to see what was changed • One-click restoration - Easily revert to original content • Auto-save - Your last input is automatically saved • Universal compatibility - Works on any website

Perfect For:

• Content Writers - Preview AI-generated content on real pages • Web Designers - Test different copy variations • QA Testers - Verify text changes before deployment • Marketers - A/B test headlines and descriptions • Translators - Preview translations in context

How to Use:

Click the extension icon
Enter JSON data with CSS selectors and replacement text
Click "Apply" to preview changes
Hover over changed elements to see original text
Click "Restore" to revert changes
Example JSON Format:

[
  {
    "selector": "h1",
    "text": "New heading text"
  },
  {
    "selector": ".description",
    "text": "Updated description"
  }
]
Privacy First:

• No data collection • No tracking • No registration required • Works completely offline • Open source approach

100% Free:

• No ads • No paid features • No hidden costs • No trial period

Perfect for content creators, developers, and anyone who needs to visualize text changes before implementation!

Technical

Version
1.5.0
Manifest
V3
Size
383KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
afgdnoolcjiebbckgjcpbkfnjjpcalok
Developer ID
ud060d3691725843e0e90e74d0280c5a9
Developer Email
[email protected]
Created
Jan 14, 2026
Last Updated (Store)
Jun 5, 2026
Last Scraped
Jun 6, 2026
Website
Support URL

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Data sourced from the Chrome Web Store · last verified Jun 6, 2026.