ImageOptimizer review
A browser-based optimizer for batch image work, cloud exports and server-side API use.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
ImageOptimizer is a browser-based tool for compressing, resizing and converting image files. It is aimed at e-commerce agencies, content managers and other teams working through image catalogs, especially those who want browser-local batches and cloud exports. Processing takes place locally with WebAssembly, so images can be optimized without uploading them to ImageOptimizer. The supported formats include JPEG, PNG, WebP, GIF, AVIF and TIFF, with a Developer API available for server-side optimization as well.
Batch work is a central part of the product: users can process multiple images, resize them in batches and receive device-adaptive recommendations. Conversion to WebP and AVIF adds format flexibility, while metadata controls let users remove metadata or preserve ICC color profiles while stripping other metadata. These capabilities make the tool relevant for teams balancing image delivery with control over color information. SEO-friendly image filenames are available on eligible plans. The free offering has a 100-optimization daily cap; the site describes device-based guidance rather than a fixed plan file-size cap.
Cloud-drive exports connect the browser workflow to Google Drive, Dropbox and OneDrive, but signing in is required for those exports. The Developer API provides a separate server-side route, with paid plans described as offering higher API limits and larger batch caps. This setup suits small and mid-market teams that need practical browser processing plus an API path. Teams needing larger batch volumes or API capacity should assess the paid plans, while those who do not need browser-local work, these conversion formats or the listed cloud destinations may prefer a narrower tool.
ImageOptimizer pros and cons
- Where it wins
- Processes images locally in the browser with WebAssembly
- Combines batch resizing, compression and WebP or AVIF conversion
- Exports to Google Drive, Dropbox and OneDrive after sign-in
- Where it doesn't
- The free offering has a 100-optimization daily cap
- Cloud-drive exports require signing in
- Higher API limits and larger batch caps require paid plans
ImageOptimizer fact sheet, pricing and score →
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update