LiteSpeed Cache
Free server-level cache and optimisation suite from LiteSpeed Technologies; full-page caching needs a LiteSpeed web server or QUIC.cloud CDN.
94
WP-Optimize
Free all-in-one plugin from TeamUpdraft combining page caching, image compression with WebP, database cleanup and minification.
Free installs1M+WordPress.org, active
Est. Pro installs~42KLikely 21K–84K
Vendor claims1M+Vendor's own figure
Rating4.8/52,617 reviews
Price from$49/yrFreemium
Last updated21 Sep 2026Version 4.7.0
Overview
WP-Optimize is a performance plugin from TeamUpdraft, the team behind UpdraftPlus, that bundles four jobs into one install: page caching, image compression, database cleanup and asset minification. It began life as a database optimiser and has grown into a general speed toolkit used on more than a million WordPress sites.
What the free version covers
The free plugin includes one-click page caching with preloading, Gzip and browser-cache settings, optional separate cache files for mobile devices, and exclusions by URL, conditional tag, user agent or cookie. Store pages that use WooCommerce’s do-not-cache signals (cart, checkout, account) are skipped automatically. Image tools offer lossy or lossless compression, WebP conversion, auto-compression of new uploads and bulk processing with restore. The database module removes revisions, drafts, spam and transients on a schedule, and the minify engine can minify and merge HTML, CSS and JavaScript, load files asynchronously, defer or delay scripts and optimise Google Fonts with font-display.
What Premium adds
Premium adds lazy loading, preload key requests, unused CSS removal, automatic LCP image preloading, YouTube iframe placeholders, local Gravatar and analytics hosting, per-role and per-user caching, REST API caching, WooCommerce geolocation caching, Cloudflare cache purging, multisite support, WP-CLI, per-table optimisation, unused-image deletion and more flexible schedules. Plans start at $49 a year for two sites.
Limitations
There is no critical CSS generator, no CDN URL rewriting for providers other than Cloudflare, no Redis or Memcached object cache integration and no heartbeat control. On Nginx, browser caching and Gzip must be configured on the server. Multisite and WP-CLI being Premium-only may matter to agencies.
Who should pick it: site owners who want a single free plugin to cover caching, image compression and database housekeeping, and who may later upgrade for lazy loading and unused CSS removal.
Best for: Budget-conscious site owners who want caching, image compression and database cleanup from one free plugin.
WP-Optimize offers one of the broadest free feature sets in the category, covering caching, images and database housekeeping in one place. Its front-end optimisation is decent but lacks critical CSS, and several agency-friendly features sit behind Premium.
Pros
- Page cache, image compression and database cleanup all free
- Free WebP conversion and bulk image compression
- Free minify, merge, defer and delay JS options
- Optional separate mobile cache in the free plugin
- Works on Apache, Nginx and IIS
Cons
- Lazy loading and preload key requests are Premium
- No critical CSS generation
- No CDN rewrite beyond Cloudflare; Cloudflare purge is Premium
- Multisite and WP-CLI require Premium
- No object cache or heartbeat control
Key features
What WP-Optimize highlights on its WordPress.org page and its own website, split by version.
Free version WordPress.org
- One-click page caching
- Cache preloading on a schedule
- Gzip and browser cache settings
- Separate mobile cache option
- Lossy or lossless image compression
- WebP image conversion
- Bulk and auto image compression
- Database cleanup with scheduling
- Minify and merge HTML, CSS, JS
- Defer and delay JavaScript
- Google Fonts and Font Awesome optimisation
- UpdraftPlus backup before cleanup
Pro / paid adds From $49/yr
- Lazy loading for images
- Preload key requests
- Remove unused CSS
- Automatic LCP image preload
- YouTube iframe preview images
- Local Gravatar and analytics hosting
- Per-role and per-user caching
- REST API request caching
- WooCommerce geolocation caching
- Cloudflare cache purge integration
- Multisite support
- WP-CLI support
- Delete unused and orphaned images
- Flexible per-task cleanup schedules
Feature checklist
20 of 25 features we track in Caching & Speed, feature score 80/100
Caching 7/8
Page caching Key
Serves pre-built HTML pages.
One-click page cache with URL, cookie and user-agent exclusions.
Included
Browser caching rules
Sets cache headers for static files.
Browser static-file cache settings on Apache; Nginx needs server config.
Included
Cache preloading
Builds the cache before visitors arrive.
Cache preloader emulates visits on a schedule.
Included
Object cache
Redis or Memcached object caching.
No Redis or Memcached object cache integration is offered.
Not included
Separate mobile cache
Different cache for mobile devices.
Option to generate separate cache files for mobile devices.
Included
WooCommerce-aware caching
Excludes cart, checkout and account pages automatically.
Skips pages marked DONOTCACHEPAGE such as cart, checkout and account.
Included
Page cache on any server
Page caching works on Apache, Nginx and LiteSpeed alike.
Cache works on Apache, Nginx and IIS servers.
Included
Multisite support
Works on WordPress multisite networks.
Multisite support is a Premium feature.
Paid version Premium
CSS & JavaScript 6/7
Minify CSS & JS
Strips whitespace from CSS and JavaScript.
Free minification of HTML, CSS and JavaScript.
Included
Combine files
Merges CSS/JS files.
Minify-and-merge mode combines CSS and JS files.
Included
Defer / delay JavaScript Key
Loads scripts after the page renders or on interaction.
Defers or asynchronously loads JS; Delay JS added in v4.0.
Included
Remove unused CSS Key
Generates only the CSS each page uses.
Premium removes unused CSS rules (added in v4.3).
Paid version Premium
Critical CSS
Inlines above-the-fold CSS.
No critical CSS generator in the free or Premium feature list.
Not included
Font optimisation
Self-hosts or preloads web fonts.
Optimises Google Fonts and Font Awesome with font-display swap.
Included
Preload and prefetch
Preload fonts, images or links and prefetch DNS.
Preload key requests and assets, plus auto LCP preload, are Premium.
Paid version Premium
Media & delivery 5/7
Lazy loading
Defers off-screen images and iframes.
Image lazy loading is Premium only.
Paid version Premium
Image compression
Compresses uploaded images.
Lossy/lossless compression with bulk and auto-compress.
Included
WebP / AVIF delivery
Serves next-gen image formats.
Free WebP conversion; AVIF is not mentioned.
Included
CDN integration
Rewrites asset URLs to a CDN.
No CDN URL rewriting; only Cloudflare is integrated natively.
Not included
Cloudflare integration
Purges or configures Cloudflare.
Premium purges Cloudflare cache when WP-Optimize clears its cache.
Paid version Premium
Lazy-load video embeds
Replace YouTube and Vimeo embeds with a lightweight preview.
Premium replaces YouTube iframes with preview images (v4.2).
Paid version Premium
Included CDN service
A CDN is part of the product or plan, not just URL rewriting.
No vendor-run CDN.
Not included
Housekeeping 2/3
Database cleanup
Removes revisions, transients and spam.
Cleans revisions, drafts, spam and transients with scheduling.
Included
Heartbeat control
Limits the WordPress Heartbeat API.
No Heartbeat API control for site owners.
Not included
WP-CLI commands
Clear or warm the cache from the command line.
Premium adds WP-CLI commands for running optimisations.
Paid version Premium
Feature checklist
18 of 22 features we track in Database Optimization, feature score 80/100
Cleanup 6/8
Post revisions Key
Delete old post and page revisions.
Free cleanup deletes post revisions; can keep a set number per post.
Included
Auto-drafts & trashed posts
Remove auto-drafts and emptied trash.
Free cleanups remove auto-drafts and permanently delete trashed posts.
Included
Spam & trashed comments
Delete spam, trashed and unapproved comments.
Separate free cleanups for spam, trashed and unapproved comments, plus pingbacks/trackbacks.
Included
Expired transients Key
Remove expired (or all) transients.
Removes expired transients; a checkbox extends this to all transients.
Included
Orphaned & duplicate metadata Key
Remove post, comment, user and term meta with no parent.
Free cleanups for orphaned post, comment and user meta and orphaned term relationships.
Included
Leftover plugin tables Key
Find and delete tables left behind by removed plugins.
Tables tab offers a Remove button for tables not used by an active plugin.
Included
Leftover options & cron jobs
Find options and scheduled tasks left by removed plugins.
No cleanup for leftover plugin options or cron events beyond transients.
Not included
Action Scheduler logs
Clean WooCommerce Action Scheduler completed actions and logs.
Not verified
Optimisation 3/5
Optimise tables Key
Run OPTIMIZE TABLE to reclaim space and defragment tables.
Runs OPTIMIZE on tables for free; Premium can target individual tables.
Included
Repair tables
Repair corrupted or crashed tables.
Tables flagged as corrupted get a Repair button that runs REPAIR TABLE.
Included
Autoloaded options control Key
See the size of autoloaded options and switch heavy ones off.
Not verified
Convert to InnoDB
Convert MyISAM tables to InnoDB.
MyISAM tables in the Tables list get a Convert to InnoDB button.
Included
Limit future revisions
Cap how many revisions WordPress keeps from now on.
Only keeps N revisions during cleanup; it does not cap revisions WordPress stores.
Not included
Automation & safety 5/5
Scheduled cleanup Key
Run cleanups automatically on a schedule.
Free daily/weekly/fortnightly/monthly schedules; Premium adds set times and per-task schedules.
Included
Preview before deleting
Shows counts or the exact items before anything is removed.
Each cleanup shows a count first; Premium adds a preview to select exact records.
Included
Keep recent data
Keep the last X days or revisions when cleaning.
Settings to keep the last X weeks of data and always keep N post revisions.
Included
Backup before cleanup
Built-in or integrated backup before running a cleanup.
Checkbox to take an UpdraftPlus backup before cleanups (UpdraftPlus must be installed).
Included
Exclusions
Exclude specific tables, options or items from cleanup.
No exclusion list; Premium lets you pick which tables or sites to optimise.
Partial
Insights & admin 3/3
Database size report
Shows table sizes and how much space a cleanup will save.
Tables tab lists rows, data and index size and overhead per table.
Included
Identify table & option owners
Shows which plugin or theme created each table or option.
Tables list names known plugins using each table; Premium adds a table usage report.
Included
Multisite support
Clean and optimise across a multisite network.
Premium can optimise any site or combination of sites on a network.
Paid version Premium
Pricing
Free
$0On WordPress.org
Starter
$49per year2 sites
All Premium features; prices may vary by region (EUR/GBP available).
Business
$99per year5 sites
All Premium features.
Enterprise
$194per yearUnlimited
All Premium features.
Prices are list prices from the vendor's site, checked 14 Oct 2026. Many vendors discount the first year.
How many sites use WP-Optimize?
Free installs from WordPress.org, the vendor's own claim, and our estimate of paid installs.
Free version (WordPress.org)
1M+
Active installations reported by WordPress.org.
Vendor claim
1M+
Sites/users claimed on the vendor's website. source
Estimated Pro / paid installs
~42K
Our estimate, see method below.
How we estimated this: The vendor figure (1M+) is within WordPress.org's rounding of the free installs, so it says nothing about paid sites. About 1.5M free installs x 2.8% (the usual share of free sites that also run the paid version when most features are free, lower for very large free bases) gives 42K. Likely range: 21K to 84K. This counts sites running the paid version, including sites whose licence has lapsed. Estimates are rough and based on public figures as of 14 Oct 2026.
Stats & health
Weekly downloads
50,425 downloads last week, 60.5M all time
Rating breakdown
| Version | 4.7.0 |
|---|---|
| Last updated | 21 Sep 2026 (43 days ago) |
| Tested up to | WordPress 7.1.4 |
| Requires | WordPress 4.9+, PHP 7.2+ |
| Support threads (2 months) | 6 of 15 resolved |
| On WordPress.org since | 21 Jan 2009 |
Company & policy
| Refund policy | 14-day money-back (source, 5 Oct 2026) |
|---|
WP-Optimize compared
Advanced Database Cleaner/WP-Optimize
Cache Enabler/WP-Optimize
NitroPack/WP-Optimize
FlyingPress/WP-Optimize
Breeze/WP-Optimize
Jetpack Boost/WP-Optimize
WP-Optimize/xSpeed Cache
WP-Optimize/WP-Sweep
Optimize Database after Deleting Revisions/WP-Optimize
Database Cleaner/WP-Optimize
WP-Optimize/WP RocketLiteSpeed Cache/WP-Optimize
W3 Total Cache/WP-Optimize
WP-Optimize/WP Super Cache
Perfmatters/WP-Optimize
WP Fastest Cache/WP-Optimize
Hummingbird/WP-Optimize
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FAQ
Is WP-Optimize free?
Yes. WP-Optimize has a free version on WordPress.org. Paid plans start at $49/yr.
How many sites use WP-Optimize?
WordPress.org reports 1M+ active installations of the free version. The vendor claims 1M+ sites in total. We estimate around 42K sites run the paid version.
Does WP-Optimize have page caching?
Yes: included. One-click page cache with URL, cookie and user-agent exclusions.
Does WP-Optimize have defer / delay javascript?
Yes: included. Defers or asynchronously loads JS; Delay JS added in v4.0.
Does WP-Optimize have remove unused css?
Yes: paid version (Premium). Premium removes unused CSS rules (added in v4.3).
Does WP-Optimize have post revisions?
Yes: included. Free cleanup deletes post revisions; can keep a set number per post.
Does WP-Optimize have expired transients?
Yes: included. Removes expired transients; a checkbox extends this to all transients.
Does WP-Optimize have orphaned & duplicate metadata?
Yes: included. Free cleanups for orphaned post, comment and user meta and orphaned term relationships.
Does WP-Optimize have leftover plugin tables?
Yes: included. Tables tab offers a Remove button for tables not used by an active plugin.
Does WP-Optimize have optimise tables?
Yes: included. Runs OPTIMIZE on tables for free; Premium can target individual tables.
Does WP-Optimize have scheduled cleanup?
Yes: included. Free daily/weekly/fortnightly/monthly schedules; Premium adds set times and per-task schedules.
Is WP-Optimize's page cache free?
Yes. Page caching, preloading, Gzip, mobile cache files, image compression with WebP, database cleanup and minification are all in the free plugin.
What does WP-Optimize Premium cost?
Premium starts at $49 per year for up to 2 sites, $99 for 5 sites and $194 for unlimited sites, with a 14-day refund window.
Does WP-Optimize work with Cloudflare?
Yes. Its page cache works alongside Cloudflare's proxy, and Premium can automatically purge the Cloudflare cache when WP-Optimize clears its own.
Is it safe with WooCommerce?
Yes. Pages flagged as do-not-cache by WooCommerce, such as cart, checkout and My Account, are excluded automatically; Premium adds geolocation-based caching.
Last updated 5 Oct 2026. Spotted something wrong? Suggest an edit.