SlashImage is a WordPress plugin that streamlines image optimization by automatically compressing images and converting them to WebP and AVIF formats. Below are 39 image editing apps with similar functionality to SlashImage, matched by what each product actually does — not ranked or scored. Explore each to find the closest fit for your use case.
Image Optimizer is a WordPress plugin that automatically compresses, resizes, and converts images to modern formats like WebP and AVIF. It helps site owners improve loading times, user experience, and search engine rankings by optimizing images in bulk or on upload.
DropAvif Image Optimizer is a WordPress plugin that converts images to WebP and AVIF formats, compresses images, and optimizes media delivery for improved site performance. It offers unlimited local optimization, watermarking, and lazy loading, making it ideal for WordPress site owners seeking faster load times and better SEO.
CompressX is a free WordPress plugin that allows users to convert and compress images to AVIF and WebP formats, replacing media files without changing URLs. It performs all conversions locally, helping site owners optimize images for faster loading and improved SEO. The plugin supports customizable compression and seamless media management.
Pixy Image Optimizer is a WordPress plugin that automatically converts and compresses images to AVIF and WebP formats, enabling faster load times and improved browser compatibility. It features lazy loading and real-time optimization for site owners focused on performance.
Image Optimizer PRO is a WordPress plugin that automatically optimizes images and serves them in AVIF or WebP formats for improved site speed. It uses a global CDN for fast delivery and requires no manual conversion by users.
Basic Image Converter and Optimizer is a WordPress plugin that automatically generates WebP and AVIF versions of uploaded JPEG and PNG images using ImageMagick. It helps site owners reduce bandwidth and improve page load times by serving optimized image formats. The plugin integrates with the WordPress media library and offers configurable quality settings.
Smart Image Optimizer is a WordPress plugin that compresses images and converts them to modern formats like AVIF and WebP. It supports automatic optimization on upload, bulk processing, and lazy loading, helping site owners improve page speed and SEO without third-party APIs.
Shrinkify Image Compression offers tools for optimizing and compressing images in formats such as WebP, AVIF, JPG, and PNG. The platform is designed to help users reduce image file sizes without noticeable loss of quality, aiming to improve website loading times and save storage space. It features smart compression technology that maintains image clarity while significantly shrinking file sizes, with reported total savings of over 80% in some cases. The service provides batch processing capabilities, allowing users to upload and compress multiple images simultaneously. For developers, Shrinkify offers simple integration options, including an API that can be accessed via HTTP requests, as well as tools for PHP and Python. This makes it possible to add image compression functionality directly into websites or applications. Additionally, Shrinkify offers a WordPress plugin, catering to users who manage their sites through this platform and want to automate image optimization. Shrinkify is accessible online and does not require users to sign up to begin compressing images. The platform allows up to ten free image compressions per day, making it easy for users to try the service without commitment. The documentation and support resources are aimed at both general website owners and developers seeking to streamline image optimization. The tool positions itself within the class of image compression and optimization solutions for web use.
WebP Image Optimization is a WordPress plugin that automatically converts JPEG and PNG images to WebP or AVIF formats, resizes images, and integrates with the Media Library. It helps site owners improve performance and save storage by optimizing images efficiently.
Stories Image Optimizer is a WordPress plugin that automatically converts uploaded images to WebP or AVIF formats, providing better compression and quality. It supports bulk optimization, configurable settings, and helps site owners improve performance and reduce storage costs.
Image Shift is a free WordPress plugin that automatically converts uploaded media images to modern formats like AVIF and WebP, optimizes file sizes, and adds watermarks. It supports multisite networks and retains backups of original images, helping site owners improve performance and protect content.
ImgSmaller is a WordPress plugin that compresses and optimizes images in your media library using the ImgSmaller API. It supports modern formats like WebP and AVIF, provides automated backups, one-click restore, and quota management. Ideal for WordPress site owners seeking faster load times and efficient image handling.
Image Converter & Optimizer is a WordPress plugin that allows users to convert images between formats like PNG, JPG, GIF, WebP, and AVIF, and optimize them for web use. It supports bulk and automatic conversion and optimization, helping WordPress site owners manage media efficiently.
Image Squeeze is a WordPress plugin that helps users optimize their website images by compressing them and converting to WebP format. It supports bulk optimization, automatic compression on upload, and is compatible with WooCommerce and Elementor.
Super Duper Image Auto Optimizer is a WordPress plugin that automatically compresses images on upload, strips EXIF metadata, and generates modern formats like WebP and AVIF. It includes bulk optimization and WP-CLI support, helping WordPress site owners improve site speed and storage efficiency.
Shrinkwell Image Optimizer is a WordPress plugin that compresses images, converts them to modern formats like WebP and AVIF, and identifies possibly unused media. All processing is done locally, ensuring privacy and efficiency for site owners and agencies.
MITS Image Optimizer is a WordPress plugin that automatically compresses images on upload, batch converts media to WebP and AVIF formats, manages .htaccess for next-gen image serving, and audits sites for SEO issues. It is designed for site owners seeking better performance and search rankings.
Skyspeed is a WordPress plugin that automatically optimizes images, resizes large uploads, and converts images to next-generation formats like WebP and AVIF. It helps site owners improve loading times and SEO by reducing image file sizes without sacrificing quality. The plugin is designed for WordPress users seeking better site performance.
Image Ninja is a WordPress plugin that converts JPEG and PNG images to WebP and AVIF formats upon upload, optimizing file sizes for faster website performance. It features automatic conversion, configurable quality settings, and a simple interface, making it ideal for site owners seeking better image optimization.
Convert to AVIF and Optimise is a WordPress plugin that automatically converts images in the media library to the AVIF format, optimizing file sizes and updating all references across the site. It offers bulk optimization, quality settings, and metadata management for improved website performance.
imagIn – WebP & AVIF Converter is a WordPress plugin that enables users to convert JPG, JPEG, and PNG images to modern WebP or AVIF formats directly on their own server. It integrates with the WordPress media library, offers customizable quality settings, and does not require any external cloud service or API. Ideal for site owners seeking local, privacy-friendly image optimization.
Vacuum Image Optimizer is a WordPress plugin that optimizes images by generating WebP and AVIF formats locally, with bulk processing, backup, and restore features. It operates entirely within your WordPress site, requiring no external API or account. Designed for site owners seeking efficient, modern image optimization.
LiteImage is a WordPress plugin designed to optimize images by generating dynamic thumbnails, converting images to WebP format, and enhancing accessibility. It helps site owners improve load times and user experience by serving responsive images and managing disk space efficiently.
SmallPict is a tool designed to optimize images for WordPress websites by automatically compressing and converting them to modern formats such as WebP and AVIF. Its core function is to reduce image file sizes by up to 80% without visible loss in quality, helping sites load faster and potentially improving SEO. The tool emphasizes privacy, as images processed through its browser-based tool never leave the user's device and require no server uploads. For WordPress users, SmallPict offers a plugin that operates in the background, compressing images as they are uploaded to the site. The platform features AI-powered compression to minimize file sizes while preserving image clarity. It is designed for ease of use, requiring only installation and activation, with no need for technical configuration or API keys. SmallPict handles all compression in its cloud infrastructure, ensuring that the user's hosting resources are not burdened by the optimization process. This setup is intended to benefit a range of users, including content creators, bloggers, agencies managing multiple client sites, and site owners seeking to improve site speed and storage efficiency. A free browser tool is also available, allowing users to drag and drop images for conversion and compression directly in their browser, supporting files up to 50 MB in size. This tool does not require signup and operates entirely locally, further reinforcing the platform's privacy-first approach. Optional anonymous statistics can be enabled, but tracking is otherwise absent. SmallPict is positioned as a lightweight solution for WordPress sites that want to maintain fast performance without compromising image quality. The service is available for free, with users able to get started without payment or registration. The company behind SmallPict is identified as TuxNoob. Documentation and support resources are provided for users seeking further guidance.
Hedef Image Optimizer — WebP & AVIF is a WordPress plugin that automatically converts JPEG and PNG images to modern WebP and AVIF formats. It processes images locally for better performance and offers bulk optimization, helping site owners improve loading speed and user experience.
OmegaPix Image Optimizer is a WordPress plugin that automatically optimizes and converts uploaded images to WebP or AVIF formats directly on your server. It ensures privacy by processing all images locally, never sending files to external services. Designed for WordPress site owners seeking better performance and GDPR compliance.
Easy Image Optimizer is a WordPress plugin that automatically compresses, resizes, and optimizes images, with features like lazy loading and WebP/AVIF conversion. It also delivers images and static assets via CDN, improving site speed and user experience for site owners.
Anek Image Optimizer is a WordPress plugin that compresses images, generates next-gen formats like WebP and AVIF, and supports multiple optimization libraries. It runs entirely on your server, ensuring privacy and faster site performance.
Nish Image Optimizer is a free WordPress plugin that compresses and converts images to formats like WebP and AVIF, optimizing them for faster loading and better SEO. It processes images locally on the server and supports bulk optimization for the entire media library.
JZB Image Auto AVIF is a WordPress plugin that helps site owners automatically generate and serve AVIF and WebP versions of their images. It uses a non-destructive cache system and dynamic HTML output buffering to optimize images without altering originals, improving site performance and compatibility.
Imagi Boost is a WordPress plugin that compresses and optimizes images locally on the server, supporting JPEG, PNG, GIF, and WebP formats. It offers bulk optimization, auto-optimization on upload, and requires no API keys or external services, ensuring privacy and unlimited usage.
WPOptimizers – Image Optimizer Lite is a WordPress plugin that automatically compresses and optimizes images using smart API-based technology. It helps site owners improve page speed and SEO by reducing image file sizes without manual intervention or complex setup.
Squeeze is a WordPress plugin that enables unlimited local image compression and WebP conversion directly in the browser, without requiring API keys or cloud uploads. It helps site owners optimize their media libraries for faster load times and improved privacy, making it ideal for privacy-conscious WordPress users.
Perfect Images is a WordPress plugin that helps site owners optimize images, regenerate thumbnails, enable retina support, and convert images to modern formats like WebP and AVIF. It provides bulk operations and custom image size management for efficient image handling.
io is a WordPress plugin designed to improve website performance by optimizing images and delivering them through a global edge network. The tool addresses the common issue of unoptimized images slowing down WordPress sites, which can negatively impact visitor retention and conversion rates. By processing images in the cloud rather than on the user's server, it reduces server load and helps enhance metrics such as the Largest Contentful Paint score, which is important for Google's page experience evaluation. The plugin operates with minimal setup—users install it, enter a license key, and image optimization begins automatically without requiring any configuration or technical expertise. It supports JPEG, PNG, GIF, and WebP images, and automatically serves them in efficient formats such as WebP or AVIF based on browser compatibility. The optimization process typically reduces image file sizes by 30–80% while maintaining visual quality. The plugin is compatible with most WordPress themes, page builders, and WooCommerce, and works by modifying the HTML output so users do not need to re-upload existing images. Original images remain unaltered, and if the plugin is deactivated, the site simply reverts to serving the original files. Image delivery is handled via Cloudflare's worldwide edge network, ensuring fast load times for visitors globally. io's infrastructure, so hosting resources are preserved for other tasks. Once an image is optimized, subsequent requests are served instantly from the CDN, with only the first request experiencing a brief delay. 90 per WordPress site per month. The plan offers unlimited image transformations, global CDN delivery, support for modern formats, and a 14-day money-back guarantee. Licensing and plugin downloads are managed through Lemon Squeezy checkout. The service is developed by Trimbit Ltd. and is based in Finland.
PixGrow Image Optimizer is a free WordPress plugin that allows users to compress images and convert them to WebP format directly in their browser using WebAssembly. It requires no API key, subscription, or server resources, making it ideal for WordPress site owners who want to improve site speed and image optimization without external dependencies.
Snake Image Optimizer is a WordPress plugin that provides local-first image optimization, converting images to WebP and AVIF formats with safe fallback options. It includes bulk processing, diagnostics, and activity logs for site owners seeking efficient image management.
LightPIX Stealth Image Compression is a WordPress plugin that automatically compresses JPEG, PNG, and WebP images on upload by connecting to the LightPIX API. It helps site owners reduce file sizes by up to 80% without visible quality loss, improving site speed and storage efficiency. Designed for WordPress users seeking automated media optimization.
Cleanor: Image Compressor & Converter is a WordPress plugin designed to optimize images within the WordPress Media Library. It addresses the need for faster website performance and reduced storage usage by shrinking image file sizes and converting them to modern formats such as WebP and AVIF. The plugin operates without requiring users to create an account, enter an API key, or purchase per-image credits. Instead, it utilizes a free endpoint provided by Cleanor Labs, allowing users to access its optimization features without any signup or payment process. Once activated, Cleanor automatically optimizes every new image upload, including thumbnails, enabling a "point-and-forget" workflow for site administrators and content creators. For websites with an existing large collection of images, the tool offers a one-click bulk optimizer to process all images already stored in the Media Library. A key feature of Cleanor is its non-destructive approach: original image files and their URLs remain unchanged, while optimized WebP and AVIF copies are stored alongside the originals and served automatically. The plugin is particularly suited for WordPress site owners and administrators seeking to improve page load times, enhance PageSpeed and Core Web Vitals scores, and minimize storage requirements. Cleanor is delivered as a WordPress plugin and operates via integration with the Cleanor Labs endpoint for image processing. According to the evidence, the plugin is free to use and does not require any form of account registration or payment for optimization services. Overall, Cleanor: Image Compressor & Converter fits within the class of WordPress image optimization tools, offering automated, account-free compression and format conversion for improved website performance.
