MiniPx vs Thumbor

MiniPx is a browser-based tool for compressing, converting, and resizing images, with additional tools for background removal, upscaling, and passport photo creation. Its free plan keeps compression, conversion, and resizing unlimited without signup or a daily cap. It accepts JPEG, PNG, WebP, AVIF, HEIC, BMP, SVG, GIF, and TIFF files; free batches are limited to five files. Compression presets are Gentle, Smart, and Tiny, and users can set a target size from 10 KB through 1 MB. Compression, conversion, and resizing run locally in the browser without uploading image files, and outputs remove EXIF metadata such as location and device information. Those core tools work offline after the first page load. Three on-device AI tools share two free runs before a cooldown, and need model downloads on first use. Pro adds unlimited batch processing, text watermarking, presets, responsive exports, and an opt-in cloud path for seven AI tools. The free plan costs nothing. Pro Annual costs $2,939 a year; no monthly Pro price is listed.

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.