Autoptimize vs Stintlief WebP Converter

Autoptimize makes optimizing your site really easy. It can aggregate, minify and cache scripts and styles, injects CSS in the page head by default but can also inline critical CSS and defer the aggregated full CSS, moves and defers scripts to the footer and minifies HTML. You can optimize and lazy-load images (with support for WebP and AVIF formats), optimize Google Fonts, async non-aggregated JavaScript, remove WordPress core emoji cruft and more. As such it can improve your site’s performance even when already on HTTP/2! There is extensive API available to enable you to tailor Autoptimize to each and every site’s specific needs. If you think performance indeed is important, you should at least consider one of the many free page caching plugins (e.g. Speed Booster pack or KeyCDN’s Cache Enabler) to complement Autoptimize or even consider Autoptimize Pro which not only has page caching but also image optimization, CDN, critical CSS and more! Autoptimize Pro Autoptimize Pro is a premium Power-Up, adding image optimization, CDN, page caching, automatic critical CSS rules and extra “booster” options, all in one handy subscription to make your site even faster!! Premium Support We provide great Premium Support and Web Performance Optimization services with Accelera, check out our offering on https://accelerawp.com/! (Speed-surfing image under creative commons by LL Twistiti)

Stintlief WebP Converter automatically converts uploaded JPEG, PNG, and GIF images to the modern WebP format, providing significant file size reductions while maintaining visual quality. The plugin includes smart features to ensure safety and reversibility. Key Features Automatic Conversion: Converts images to WebP on upload without manual intervention Smart Size Comparison: Only keeps WebP if it’s smaller than the original (configurable) Safe Backups: Optional automatic backup of original files for easy restoration One-Click Restore: Restore original images from attachment edit screen Animated GIF Protection: Automatically skips animated GIFs to preserve animation Configurable Settings: Control max dimensions, compression quality, and behavior No External Services: All processing happens on your server – no data sent elsewhere Performance Boost: WebP images are typically 25-35% smaller than JPEG/PNG Privacy & Data Handling This plugin does not: * Send any data to external servers * Store personal user information * Track users or create logs (except standard WordPress debug logs when WP_DEBUG is enabled) * Use cookies or external APIs Backup files (if enabled) are stored locally on your server in the uploads directory and are not publicly exposed unless explicitly accessed. Supported Image Formats JPEG (.jpg, .jpeg) PNG (.png) GIF (.gif) – static only, animated GIFs are preserved HEIC/HEIF (if server supports) Requirements Your server must have one of the following: * Imagick extension with WebP support * GD extension with WebP support The plugin will display a notice if WebP support is not available. Privacy Policy This plugin does not collect, store, or transmit any personal data. All image processing happens locally on your WordPress server. Backup files (if enabled) are stored in your uploads directory and are not shared or transmitted to external services. If you have privacy requirements, you can disable the backup feature in Settings → Media. Credits Developed by Stintlief Technologies with a focus on performance, safety, and WordPress best practices.