Custom JavaScript Editor
Add custom JavaScript to your site from an editor in the WordPress admin.
Consider an alternative
Custom JavaScript Editor shows warning signs in 2026 — compare the alternatives below before installing. It runs on 400+ sites and was last updated 10 years ago, and scores 27/100 on our health check.
- Small user base (400+ active installs)
- Very few reviews so far
- No update in 10 years
- Only tested up to WordPress 4.5 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Custom JavaScript Editor stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| javascript | >100 |
Version adoption
Share of active sites per release.
About Custom JavaScript Editor
From the official readme · v1.1Description
Add custom JavaScript to your site from an editor in the WordPress admin.
Your code is stored and revisioned with a custom post type, so you can always go back to a previous working state.
If you’d like to check out the code and contribute, join us on GitHub. Pull requests are more than welcome!
Installation
- Upload the
custom-javascript-editorfolder to your plugins directory (e.g./wp-content/plugins/) - Activate the plugin through the ‘Plugins’ menu in WordPress
Changelog
The editor has a syntax highlighter with configurable themes. jQuery Masonry is also bundled.
1.1 (Nov. 19, 2012)
- The editor has a syntax highlighter with configurable themes.
- jQuery Masonry is available as a library to use
- Bug fix: Stop stripping arbitrary HTML markup
1.0 (Oct. 8, 2012)
- Enqueue any bundled JavaScript libraries on the frontend for use. Register your own with the ‘cje_available_scripts’ filter. Thanks flentini for the original pull request
0.9.1
- Bug fix: Use html_entity_decode() for decoding stored JavaScript so it properly renders
0.9
- Initial release
Screenshots
For developers
Is this your plugin? Show off the numbers.
Add a live badge to your site, docs or GitHub README. It updates on its own — no account needed.
Best Custom JavaScript Editor alternatives
All javascript plugins →
FAQ
Custom JavaScript Editor: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Sep 27, 2026
Is Custom JavaScript Editor free?
Yes. Custom JavaScript Editor is free to download and use from the official WordPress.org plugin directory.
Is Custom JavaScript Editor safe to use in 2026?
Custom JavaScript Editor shows warning signs in 2026 — compare the alternatives below before installing. It runs on 400+ sites and was last updated 10 years ago, and scores 27/100 on our health check.
How many websites use Custom JavaScript Editor?
Custom JavaScript Editor is active on 400+ WordPress websites and has been downloaded 19,640 times since it launched in August 2012. It was downloaded 110 times in the last 30 days.
Does Custom JavaScript Editor work with WordPress 7.1?
Custom JavaScript Editor is officially tested up to WordPress 4.5.33, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
When was Custom JavaScript Editor last updated?
The latest version, 1.1, was released on April 14, 2016 (10 years ago).
Who makes Custom JavaScript Editor?
Custom JavaScript Editor is developed and maintained by Automattic.
What are the best alternatives to Custom JavaScript Editor?
The most popular alternatives to Custom JavaScript Editor are Shortcoder (100K+ installs), Speculative Loading (70K+ installs) and Async JavaScript (70K+ installs).
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