WP OPcache
Manage OPcache inside your WordPress admin dashboard.
Use with caution
WP OPcache works, but test it on a staging site before relying on it in 2026. It runs on 10K+ sites, is rated 4.8/5 and was last updated 2 years ago, and scores 49/100 on our health check.
- Proven at scale on 10K+ active sites
- Loved by users — 4.8/5 from 20 reviews
- No update in over a year
- Only tested up to WordPress 6.7 (latest is 7.1)
- Needs PHP 8.1 or newer
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 WP OPcache stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| cache | >100 |
| flush | #11 |
| multisite | >100 |
| OPcache | #4 |
| php | >100 |
Version adoption
Share of active sites per release.
Rating breakdown
★★★★★★★★★★ 4.8 from 20 reviews
About WP OPcache
From the official readme · v4.2.3Description
Flush OPcache
- creates a button in admin bar to flush OPcache
- flush only files in WordPress absolute path
- individual or bulk file invalidation
- support both memory and file caching
- support multisite
OPcache Statistics
- memory, hits, strings and keys statistics
- directives, functions and general informations
- list all files
- fully responsive
WP CLI ready
- add flush-opcache command to flush cache with cli:
wp flush-opcache flush - don’t forget to add
opcache.enable_cli=1to your PHP configuration
There are three tabs in admin page under Tools:
- General settings: plugin settings
- Statistics: responsive dashboard about OPcache statistics
- Cached files: list of cached files with the possibility of invalidating them
Installation
As usual…
Changelog
4.2.3
- Ensure user is admin or superadmin to display flush button in admin bar
- Ensure to not continue if OPcache is disabled or not installed to avoid printing PHP errors
4.2.1
- Maintenance release
- Menu moved under Tools
4.2.0
- Add CLI support
4.1.4
- Fix a bug on clearing cache after upgrade
- Flush files even when WP use its own directory
- Use WordPress 6.0 as default
- Use php8.0 as default
4.1.3
- Fix a bug on datetime in cached file list
4.1.2
- Fix a bug with ABSPATH when WordPress uses its own directory
Screenshots
For developers
Is this your plugin? Show off the numbers.
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Best WP OPcache alternatives
All cache plugins →
FAQ
WP OPcache: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Sep 27, 2026
Is WP OPcache free?
Yes. WP OPcache is free to download and use from the official WordPress.org plugin directory.
Is WP OPcache safe to use in 2026?
WP OPcache works, but test it on a staging site before relying on it in 2026. It runs on 10K+ sites, is rated 4.8/5 and was last updated 2 years ago, and scores 49/100 on our health check.
How many websites use WP OPcache?
WP OPcache is active on 10K+ WordPress websites and has been downloaded 233,017 times since it launched in February 2017. It was downloaded 1,888 times in the last 30 days.
Does WP OPcache work with WordPress 7.1?
WP OPcache is officially tested up to WordPress 6.7.9, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
What PHP version does WP OPcache need?
WP OPcache requires PHP 8.1 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was WP OPcache last updated?
The latest version, 4.2.3, was released on February 27, 2025 (2 years ago).
Who makes WP OPcache?
WP OPcache is developed and maintained by nierdz.
What are the best alternatives to WP OPcache?
The most popular alternatives to WP OPcache are WP Super Cache (1M+ installs), WP Fastest Cache (1M+ installs) and WP-Optimize (1M+ installs).
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