MiniPx vs Optimizilla
MiniPx
minipx.comOptimizilla
imagecompressor.comSide by side
| Figure | MiniPx | Optimizilla |
|---|---|---|
| Price from | Free | $9/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Plans published | 3 | 4 |
| Spec score · Image Compression Software | 8.8 (#8) | 8.9 (#5) |
| Batch processing | Yes | Yes |
| Browser Processing | Images are processed locally in the browser using the Canvas API. | The site says all compression runs in the browser and files never leave the device. |
| Compression modes | both | both |
| Free plan | Yes | Yes |
| Site Integrations | The text names a Chrome extension and platform presets, but no broader service integrations. | The Enterprise plan lists custom integrations; the pricing page does not name specific integration partners. |
| Metadata controls | Yes | Yes |
| Supported formats | JPEG,PNG,WebP,AVIF,HEIC,BMP,SVG,GIF,TIFF | JPEG,PNG,WebP,GIF,SVG |
Plans
In their own words
MiniPx
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.
Optimizilla
Optimizilla is a web image-compression tool for JPEG, PNG, WebP, GIF, and SVG files. It processes images in the browser, supports batch work, and lets users adjust quality and preview the result before saving. The compressor uses format-specific handling: JPEG quality is inferred from quantization tables with a default target of 80; PNG files become PNG8 with up to 256 colors while preserving transparency; and animated GIF optimization reduces the palette while retaining frames. Compressed images have EXIF, GPS, and camera metadata removed. The site says files are not uploaded to its servers. Its free plan is free, with no registration, daily limit, or watermark, and is described as allowing unlimited compression. The pricing page also lists a 25 MB maximum file size and batches of up to 50 files for Free. Pro costs $9 a month and includes unlimited file size and batch uploads, among other tools. Enterprise pricing is custom and not listed; its plan includes custom integrations, without naming partners.