Title: LehmannLabs WebP Optimizer
Author: lehmannlabs
Published: <strong>2026 年 3 月 19 日</strong>
Last modified: 2026 年 6 月 6 日

---

搜索插件

![](https://ps.w.org/lehmannlabs-webp-optimizer/assets/banner-772x250.png?rev=3486540)

![](https://ps.w.org/lehmannlabs-webp-optimizer/assets/icon-256x256.png?rev=3486540)

# LehmannLabs WebP Optimizer

 作者：[lehmannlabs](https://profiles.wordpress.org/lehmannlabs/)

[下载](https://downloads.wordpress.org/plugin/lehmannlabs-webp-optimizer.1.0.1.zip)

 * [详情](https://cn.wordpress.org/plugins/lehmannlabs-webp-optimizer/#description)
 * [评价](https://cn.wordpress.org/plugins/lehmannlabs-webp-optimizer/#reviews)
 *  [安装](https://cn.wordpress.org/plugins/lehmannlabs-webp-optimizer/#installation)
 * [开发进展](https://cn.wordpress.org/plugins/lehmannlabs-webp-optimizer/#developers)

 [支持](https://wordpress.org/support/plugin/lehmannlabs-webp-optimizer/)

## 描述

LehmannLabs WebP Optimizer is focused on one core goal: faster page load times.

The plugin converts your WordPress images to WebP and serves WebP files on the frontend
whenever available. This reduces image payload and helps improve Core Web Vitals
and user experience.

It was developed for WordPress websites built with Elementor and works well with
typical Elementor image output (including image widgets, carousels, and background
image use cases).

Unlike many plugins in this category, LehmannLabs WebP Optimizer is fully free to
use, with no advertising, no tracking, and no premium upsells. Many competing plugins
are either limited in their free version or are generally only available as paid
products.

Tested with:
 – Elementor v3.35.6 – Elementor Pro v3.35.1

Key benefits:
 – Faster frontend image delivery through WebP replacement – Completely
free, with no ads and no paid upgrades – No feature limits in the free version and
no paid-only core workflow – Optional auto-conversion on upload – Batch conversion
for existing media – Safe fallback strategy and backup/restore tools – No external
API calls, no tracking

Main features:
 – WebP generation for full-size and intermediate image sizes – Output
modes: – Picture mode (recommended): WebP source with fallback image – Direct mode:
direct URL/srcset replacement to WebP when available – Original image backup to `
uploads/slimage-backup/YYYY/MM/` – Optional resize with configurable maximum edge
length – Batch tools in wp-admin: – Scan & Optimize – Delete WebP Files – Restore
Originals – Site Health integration for WebP capability checks

## 安装

 1. Upload the plugin folder to `/wp-content/plugins/lehmannlabs-webp-optimizer/`.
 2. Activate the plugin through the “Plugins” screen in WordPress.
 3. Open `LehmannLabs WebP > Settings` and review options.
 4. Use `LehmannLabs WebP > Tools` for batch actions.

## 常见问题

### Are originals deleted?

No. Originals are preserved in `uploads/slimage-backup/` while backup is enabled.

### What happens if WebP is not supported on the server?

The plugin skips WebP generation and reports this in Site Health and admin notices.

### Can I restore optimized files?

Yes. You can restore per attachment or in batches.

### Can I delete the backup folder manually from the plugin?

Yes. Use the “Delete Backup Now” button in `LehmannLabs WebP > Settings`.

### Does it work with Elementor?

Yes. The plugin was developed for WordPress with Elementor and is optimized for 
common Elementor image output patterns.

## 评价

此插件暂无评价。

## 贡献者及开发者

「LehmannLabs WebP Optimizer」是开源软件。 以下人员对此插件做出了贡献。

贡献者

 *   [ lehmannlabs ](https://profiles.wordpress.org/lehmannlabs/)

[帮助将「LehmannLabs WebP Optimizer」翻译成简体中文。](https://translate.wordpress.org/projects/wp-plugins/lehmannlabs-webp-optimizer)

### 对开发感兴趣吗?

您可以[浏览代码](https://plugins.trac.wordpress.org/browser/lehmannlabs-webp-optimizer/)，
查看[SVN仓库](https://plugins.svn.wordpress.org/lehmannlabs-webp-optimizer/)，或
通过[RSS](https://plugins.trac.wordpress.org/log/lehmannlabs-webp-optimizer/?limit=100&mode=stop_on_copy&format=rss)
订阅[开发日志](https://plugins.trac.wordpress.org/log/lehmannlabs-webp-optimizer/)。

## 更新日志

#### 1.0.1

 * Updated WordPress compatibility to 7.0
 * Removed manual text domain loading for WordPress.org translation compatibility
 * Normalized file line endings for Plugin Check compatibility

#### 1.0.0

 * Initial release
 * Upload optimization with backup and optional resize
 * WebP generation for full and intermediate sizes
 * Picture and direct output modes
 * Batch scan/optimize, restore, and delete WebP tools
 * Progress UI with status and remaining preview
 * Single media restore action
 * Backup cleanup button in settings
 * Site Health WebP support test

## 额外信息

 *  版本 **1.0.1**
 *  最后更新：**6 天前**
 *  活跃安装数量 **不到10**
 *  WordPress 版本 ** 6.2 或更高版本 **
 *  已测试的最高版本为 **7.0**
 *  PHP 版本 ** 7.4 或更高版本 **
 *  语言
 * [English (US)](https://wordpress.org/plugins/lehmannlabs-webp-optimizer/)
 * 标签
 * [elementor](https://cn.wordpress.org/plugins/tags/elementor/)[images](https://cn.wordpress.org/plugins/tags/images/)
   [optimization](https://cn.wordpress.org/plugins/tags/optimization/)[performance](https://cn.wordpress.org/plugins/tags/performance/)
   [webp](https://cn.wordpress.org/plugins/tags/webp/)
 *  [高级视图](https://cn.wordpress.org/plugins/lehmannlabs-webp-optimizer/advanced/)

## 评级

尚未提交反馈。

[Your review](https://wordpress.org/support/plugin/lehmannlabs-webp-optimizer/reviews/#new-post)

[查看全部评论](https://wordpress.org/support/plugin/lehmannlabs-webp-optimizer/reviews/)

## 贡献者

 *   [ lehmannlabs ](https://profiles.wordpress.org/lehmannlabs/)

## 支持

有话要说吗？是否需要帮助？

 [查看支持论坛](https://wordpress.org/support/plugin/lehmannlabs-webp-optimizer/)