ImageSmaller
ImageSmaller: A free browser tool for lossless compression and format conversion, with few controls. Ranked #77 of 85 in Image Compression Software by our editors (3.0/10); pricing: Free plan; best for simple free format conversion.
At a glance
- Editor score3.0 / 10
- PricingFree plan
- Best forSimple free format conversion
- Free planYes
- Paid fromFree
- Compression modesLossless
- Founded2016
- Facts checked24 Sep 2026
Where it wins
- Lossless compression for PNG, JPG/JPEG, GIF, TIFF, WEBP and SVG
- Converts images to WEBP, AVIF, PNG and JPG
- No registration or watermark; files are removed after a few hours
Where it doesn't
- Web-only service requires uploading images to cloud servers
- Maximum advertised upload size is 50 MB
- Advanced compression controls are sparse
Our verdict on ImageSmaller
ImageSmaller is a browser-based service for reducing image file sizes without installing software or creating an account. It processes uploads on its servers and is aimed at people who need straightforward image optimization for web use. The service fits solo users and small teams that prefer a simple online workflow over a desktop application. Its format coverage includes PNG, JPG/JPEG, GIF, TIFF, WEBP and SVG compression.
The product is free, with no paid tiers described. Its compression is presented as lossless, and the service also converts images to WEBP, AVIF, PNG and JPG. The advertised maximum upload size is 50 MB, which gives the tool a clear boundary for larger source files. Automatic removal of uploaded files after a few hours limits how long processed images remain on the service, while optimized images receive no watermark.
ImageSmaller keeps the experience narrow: select an image, process it online and download the result. That simplicity suits occasional conversions and basic size reduction, but advanced compression controls are sparse. Because it is web-only and cloud-deployed, it is less suitable for workflows that require local processing or more detailed control over optimization settings. Choose it for free, registration-free format conversion and lossless compression; consider another tool if desktop access, deeper controls or handling files above 50 MB is important.
Your product? Our editors can test ImageSmaller in depth and publish a review, labelled as paid · from $149/mo →
ImageSmaller pricing
ImageSmaller fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Compression modes | Lossless |
| Batch processing | Not verified |
| API access | Not verified |
| Max upload size | 50 MB |
| Image resizing | Not verified |
| Supported formats | PNG, JPG, JPEG, GIF, TIFF, WEBP, SVG |
| Metadata controls | Not verified |
| Deployment | Cloud |
| Platforms | Web |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | imagesmaller.com |
| Facts checked | 24 Sep 2026 |
Alternatives to ImageSmaller
- TinyPNGA flexible compressor for web workflows, batch processing, and automated image pipelines.9.3
- OptimoleA strong WordPress-focused optimizer for responsive images, modern formats, and CDN delivery.9.2
- ThumborA self-hosted image service with URL transformations, smart cropping, and format selection.9.1
See all ImageSmaller alternatives →
Used ImageSmaller? Be the first to review it
The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used ImageSmaller for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.
Write a reviewTwo minutes · verified accounts only · read by an editor before it appears
Featured on iTechGuides
ImageSmaller is listed in our Image Compression Software directory. Add the badge to your site — it links back to this page.
<a href="https://www.itechguides.com/products/imagesmaller/"><img src="https://www.itechguides.com/best/badge/imagesmaller.svg" alt="Featured on iTechGuides" width="230" height="46"></a>
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 · How we research and update