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ImageOptimizer

Freemium#21 of 85 in Image Compression Software

ImageOptimizer: A browser-based optimizer for batch image work, cloud exports and server-side API use. Ranked #21 of 85 in Image Compression Software by our editors (7.4/10); pricing: Free plan; best for teams handling image catalogs in browser-based batches.

7.4/10Editor score

Visit ImageOptimizer

ImageOptimizer7.4 Visit ImageOptimizer

At a glance

Editor score
7.4 / 10
Pricing
Free plan
Best for
Teams handling image catalogs in browser-based batches
Free plan
Yes
Facts checked
24 Sep 2026

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

Our verdict on ImageOptimizer

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.

Your product? Our editors can test ImageOptimizer in depth and publish a review, labelled as paid · from $149/mo →

ImageOptimizer pricing

Plans Free planFreemium A usable free plan; paid tiers unlock the limits above. Prices checked 24 Sep 2026.

See plans on imageoptimizer.org

ImageOptimizer fact sheet

Free plan	Yes
Paid from	Not verified
Compression modes	Not verified
Batch processing	Yes
API access	Yes
Max upload size	Not verified
Image resizing	Yes
Supported formats	JPEG, PNG, WebP, GIF, AVIF, TIFF
Metadata controls	Yes
Deployment	Cloud, Browser extension
Platforms	Web
Support	Email
Built for	Small business, Mid-market (editorial estimate)
Integrations	3 integrations: Google Drive, Dropbox, OneDrive
Pricing	Free plan (source)
Website	imageoptimizer.org
Facts checked	24 Sep 2026

ImageOptimizer integrations

ImageOptimizer lists 3 integrations on its own site.

Google Drive
Dropbox
OneDrive

Alternatives to ImageOptimizer

See all ImageOptimizer alternatives →

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Featured on iTechGuides

ImageOptimizer is listed in our Image Compression Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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 7 Oct 2026 · How we research and update