Description
At a glance
Seraphinite Accelerator v2.29.26 — free WordPress plugin download. Key facts: 50K+ active installs · 4.8/5 rating from 476 reviews · updated September 18, 2026 · requires WordPress 4.5+ & PHP 7.1+.
Turns on site high speed to be attractive for people and search engines. See more how to use it.
TO USE FREE ADDITIONAL FEATURES PLEASE INSTALL THE FREE EXTENDED PLUGIN VERSION BY FOLLOWING ONSCREEN PLUGIN’S INSTRUCTIONS.
We kindly ask you to post reviews to share experience about your site speed – it helps improving the plugin.
Features
- Fastest cache engine
A high-performance file cache engine works as fast as possible on your site. - High load tolerance
Cache revalidation uses minimum resources. - Security
User cached sessions are protected from brute force attacks. - Optimization plugins compatibility
Many 3rd party optimization plugins can be used. - Various range of encoding
GZip, Deflate, Compress, Brotli, Uncompressed are supported. - Cache data compression
Decreases storage data occupation. - Browser cache
Leverage browser caching via .htaccess to reduce server load. - Caching separation
Data is different for various devices and environments. - No site registration and quoting
There is no any site registration and no time or page count quota.
Free additional features
- Multiple CDN
Rearrange balance on multiple CDNs to be faster and decrease costs. - Lazy revalidation
Pages speed is always highest even while content updating. - Cache storage space optimization
The same parts are stored uniquely, which significantly saves space. - Users cache
Smart caching of user’ dependent pages like shop cart, online courses, etc. - HTML error-correcting and checking
Managing unescaped scripts, misplaced and lost tags. - Content size optimization
Minification of Java-scripts, styles (CSS), HTML. - Media load optimization
Lazy loading of images, video, frames, fonts. - Scripts load optimization
Java-scripts and styles (CSS) lazy loading, inlining, and deferring.
Premium features
- Remote optimization
Optimization can be performed remotely on our cloud servers. Includes CPU seconds: 1000/hour, 10000/day and 300000/month. - No page views limits
There is no limit of 5000 page views per month. In free version after reaching that limit the product will just cache pages without optimization. - No banner
There is no banner at the bottom of the site. - No promotions
No promotions of other related plugins. - Support
Personal prioritized support (3 hour per site). Additional support is for 30 EUR per hour. All issues due to product are always fixed for free.
Requirements
- WordPress 4.5 or higher.
- PHP 7.1 or higher.
- Browser (Google Chrome, Firefox, IE).
Compatibility
- Google Tag Manager for WordPress 1.11 or higher.
- Facebook for WordPress 3.0 or higher.
- Site Kit by Google – Analytics, Search Console, AdSense, Speed 1.30 or higher.
- Realbig For WordPress 0.3 or higher.
- Yandex Metrica 1.8 or higher.
- JivoChat Live Chat 1.3 or higher.
- EWWW Image Optimizer 6.0 or higher.
- Smush – Lazy Load Images, Optimize & Compress Images 3.8 or higher.
- reSmush.it : the only free Image Optimizer & compress plugin 0.4 or higher.
- Image optimization & Lazy Load by Optimole 3.1 or higher.
- WooCommerce 3.5 or higher.
- WooCommerce Subscriptions 2.4 or higher.
- LMS by LifterLMS 4.0 or higher.
- WP-Recall – Registration, Profile, Commerce & More 16.26 or higher.
- WordPress Social Login 3.0 or higher.
- AMP for WP – Accelerated Mobile Pages 1.0 or higher, but pages’ speed is not guaranteed due to this plugin already optimizes content.
- Jetpack – WP Security, Backup, Speed, & Growth 9.7 or higher.
- All in One SEO Pack 4.0 or higher.
- Yoast SEO 16.0 or higher.
- Rank Math SEO 1.0 or higher.
- WPML 4.0 or higher.
- PolyLang 1.8 or higher.
- Multiple Domain 1.0 or higher.
- Seraphinite Post .DOCX Source 2.0 or higher.
- Seraphinite Bulk Discounts for WooCommerce 2.0 or higher.
- Webinoly 1.14 or higher.
- ISPmanager 6.0 or higher.
- Smart Slider 3 3.4 or higher.
- Revolution Slider 6.5 or higher (partial support).
- Depicter Slider 1.9 or higher.
- Hide My WP Ghost 4.0 or higher.
- WP Hide & Security Enhancer 1.7 or higher.
- Feeds for YouTube 1.4 or higher.
- VillaTheme WooCommerce Multi Currency 2.1 or higher.
- Permalink Manager 2.2 or higher.
- Airtech Plumber HVAC and Repair theme 1.6 or higher.
- Porto theme 6.2 or higher.
- FlatSome theme 3.0 or higher.
- Slideshow of UIkit 3.14 or higher.
- Nginx Cache Controller 3.3 or higher.
- Nginx Cache 1.0 or higher.
- Nginx Helper 2.2 or higher.
- Cloudflare 4.9 or higher.
- Newspaper (tagDiv) theme 11.3 or higher.
- Image Comparison Widget of ElementsKit.
- Carousel of Happy Elementor Addons.
- Qi Addons For Elementor theme 1.6 or higher.
- Photonic Photo Gallery 2.80 or higher.
- WooCommerce – 1C Data Exchange 1.115 or higher.
- Scrollsequence – Cinematic Scroll Image Animation 1.3.0 or higher.
- GDPR Cookie Consent Plugin (CCPA Ready) 2.4 or higher.
- Tag Groups is the Advanced Way to Display Your Taxonomy Terms 2.0 or higher.
Frequently asked questions
What do I get when I download Seraphinite Accelerator?
Seraphinite Accelerator 2.29.26 is the latest version. It is a WordPress plugin you can download here free of charge under the GPL license, with the complete feature set included and no trial limitations. It holds a 4.8/5 rating from 476 user reviews.
Does Seraphinite Accelerator cost anything?
No. Seraphinite Accelerator 2.29.26 is 100% free — the full GPL version, not a trial or demo. There are no download limits, no accounts to create, and no upsells during the download.
How do I install Seraphinite Accelerator 2.29.26?
Download the ZIP file from this page, then in your WordPress dashboard go to Plugins → Add New → Upload Plugin, choose the file, click Install Now, then Activate. The plugin works immediately after activation — no license key or extra setup is required for the core features.
What are the requirements for Seraphinite Accelerator?
Seraphinite Accelerator 2.29.26 requires WordPress 4.5 or higher and PHP 7.1 or higher. Most modern WordPress hosts already meet these versions. Running older versions may cause features to break, so update WordPress and PHP first if your site is behind.
When was Seraphinite Accelerator last updated?
Version 2.29.26 was last updated on September 18, 2026. This page is refreshed automatically, so the download here always matches the newest version we have verified.
Is the Seraphinite Accelerator download safe?
The file is sourced directly from the official WordPress.org repository — the same file the developer published. It is served unmodified, so what you install here is byte-identical to the official release.
Technical details
| Version | 2.29.26 |
|---|---|
| Last updated | September 18, 2026 |
| Active installs | 50,000+ |
| Rating | ★★★★★ 4.8/5 (476 reviews) |
| Requires WordPress | 4.5 or higher |
| Requires PHP | 7.1 or higher |
| Author | Seraphinite Solutions |
| Tags | cache, optimize, pagespeed, performance, speed-up |
Download Seraphinite Accelerator
Download Seraphinite Accelerator WP PluginNote: if the download does not start, disable your ad blocker and try again.