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 snapshotsTracking since Apr 1, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 1, 2026 | 25 | — | — | 1.4.0 |
| Apr 16, 2026 | 29 | — | — | 1.4.0 |
| Apr 24, 2026 | 32 | — | — | 1.4.0 |
| May 7, 2026 | 33 | — | — | 1.4.0 |
| May 12, 2026 | 25 | — | — | 1.4.0 |
| May 18, 2026 | — | — | — | 1.4.0 |
| May 24, 2026 | 31 | — | — | 1.4.0 |
| May 31, 2026 | 28 | — | — | 1.4.0 |
| Jun 6, 2026 | 25 | — | — | 1.4.0 |
| Now | 30 | — | — | 1.5.0 |
Permissions & access
- Permissions
- activeTabstorage
- Host access
- <all_urls>
Screenshots
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.