Optimole vs Thumbor

Optimole is a web service for optimizing and delivering images across WordPress sites and other integrations. It resizes images for a visitor’s device and screen, adjusts quality based on device and connection, and supports conversion or delivery in WebP and AVIF. Its WordPress plugin optimizes uploaded images in real time, while sites beyond WordPress can connect through custom integration. The Media API provides more than 50 URL-based image transformations, and API access is available. Digital Asset Management includes a central media library, folders, tagging, and filtering; teams can use access controls and share assets with external stakeholders. Optimole uses Amazon CloudFront, which it says has more than 450 locations worldwide. Its Free plan costs nothing and allows 2,000 monthly visits, unlimited images, and unlimited sites. A free trial is promoted without a credit card requirement, and purchases have a 7-day no-questions-asked money-back guarantee. Monthly and yearly billing are offered, with yearly billing marked to save 20%.

Thumbor is a self-hosted image service for on-demand cropping, resizing and flipping. Its smart mode looks for faces when choosing a crop and falls back to feature detection if it finds none. Filters can be chained, including brightness, contrast, grayscale, red-eye and blur. Thumbor supports WebP delivery to browsers that can display the format, and its listed capabilities include responsive images, automatic optimization and AVIF support. File, HTTP, Redis and Mongo implementations are available for loaders and storage. The service can be extended with custom filters, storage, loaders, engines, detection and optimizers. A SECURITY_KEY can be used to sign image URLs with HMAC to help guard against tampering. The default HTTP loader uses HTTP; the documentation also describes HTTPS and strict HTTPS options. Thumbor is distributed as a Python package, and current releases require Python 3.10 or newer. The project describes it as open source and lists an MIT license. Its platforms include API, Linux and self-hosted use. The listed plan costs nothing.