ShrinkPix

A Squoosh alternative built for batches

ShrinkPix is built on the same idea as Squoosh — WebAssembly builds of real codecs, running locally, no upload — but is designed around dropping in a whole folder and getting a ZIP back, rather than adjusting one image at a time with a side-by-side preview. Choose Squoosh for fine-grained single-image comparison; choose this for batches.

Squoosh, built by the Chrome team, popularised the idea of running real image codecs in the browser via WebAssembly, and it remains excellent for dialling in settings on a single image with a live before/after preview. What it is not built for is volume — there is no batch mode, so converting fifty images means fifty round trips through the interface.

ShrinkPix vs Squoosh

FeatureShrinkPixSquoosh
Where files are processedIn your browser (WebAssembly)In your browser (WebAssembly)
Batch processingYes — drop a folder, get a ZIP backNo — one image at a time
Side-by-side quality previewNoYes — its strongest feature
EXIF / ICC / XMP preservedYes, by defaultNo — metadata is stripped
Formats handledPNG, JPEG, WebP, AVIF, GIF, BMPPNG, JPEG, WebP, AVIF, and more experimental formats
MaintainedYesIntermittently — a Google Chrome Labs side project

What to know

  • Squoosh exposes lower-level per-codec settings (like MozJPEG's individual quantisation tables) than this tool does, which matters if you are hand-tuning one hero image.
  • This tool preserves EXIF, ICC and XMP metadata by default; Squoosh strips it, which is fine for the web but not if you need to keep camera or copyright data.
  • Both are genuinely private — neither uploads anything. The difference is workflow, not trust.

Frequently asked questions

Does Squoosh keep EXIF data?
No. Squoosh strips metadata as part of its pipeline, which is usually fine for web images but loses camera settings, copyright and GPS data if you need them kept.
Can Squoosh convert a whole folder of images at once?
No, Squoosh handles one image at a time with a manual preview. For batches, a tool built around drag-and-drop of many files and a ZIP download — like this one — is faster.
Is this tool as private as Squoosh?
Yes. Both run the actual image codecs as WebAssembly inside your browser and never upload files to a server. The difference between them is batch handling and metadata, not privacy.