Private · in-browser · unlimited

Compress images to an exact size

Drop a photo, pick a size, download. ShrinkTo compresses JPG, PNG, WebP and AVIF to an exact KB target right in your browser - no upload, no signup, no limits.

Drop images to compress

or browse files · paste with Ctrl/⌘+V

JPG · PNG · WebP · AVIF · HEIC

Target size

Output format

No upload No signup Unlimited & free

Why ShrinkTo beats the rest

100% private

Every image is processed in your browser with WASM codecs. Nothing is ever uploaded - open DevTools and watch the Network tab stay empty.

Exact-KB targeting

Need exactly 100 KB? A binary search on quality hits your target on the first try - something TinyPNG and Squoosh can't do.

Best-in-class quality

MozJPEG, WebP and AVIF encoders give you visually-superior compression at a fraction of the size.

Unlimited & free

No 20-images-a-day cap, no 5 MB limit, no signup. We run on your CPU, so there's no server cost to recover.

How to compress an image

Drop your images

Drag in, paste, or browse. Batch as many as you like.

Pick a target size

Choose a KB preset or type an exact number.

Download instantly

Grab one image or a ZIP of the whole batch.

ShrinkTo vs. the other compressors

Feature	ShrinkTo	Others
No upload - files stay on your device
Exact KB-size targeting
Unlimited images, no daily cap		20/day
AVIF & WebP output		Paid
No signup or email required
Full PDF tool suite included

A complete file toolkit

Everything iLovePDF offers - merge, split, convert, edit, protect - plus a best-in-class image compressor. All free, all in your browser.

Browse all tools

Organize PDF

Merge, split & reorder pages

Merge PDFCombine multiple PDFs into one, in any order.Split PDFSplit a PDF by page ranges into separate files.Remove PagesDelete the pages you don't need.Extract PagesPull selected pages into a new PDF.Organize PDFReorder, rotate and delete pages visually.Scan to PDFCapture from your camera straight to PDF.

Optimize PDF

Compress, repair & OCR

Compress PDFReduce PDF size while keeping quality.Repair PDFRecover data from damaged PDF files.OCR PDFMake scanned PDFs searchable & selectable.

Convert PDF

To and from PDF

JPG to PDFTurn images into a single PDF document.Word to PDFConvert DOC/DOCX files to PDF.PowerPoint to PDFConvert PPT/PPTX slides to PDF.Excel to PDFConvert XLS/XLSX spreadsheets to PDF.HTML to PDFConvert a web page or HTML to PDF.PDF to JPGConvert each PDF page into a JPG image.PDF to WordConvert PDF to an editable Word document.PDF to PowerPointConvert PDF pages into PPTX slides.PDF to ExcelExtract tables from PDF into Excel.PDF to PDF/AConvert to the PDF/A archival format.

Frequently asked questions

Is ShrinkTo really free?

Yes - completely free with no limits and no signup. Because everything runs in your browser on your own device, there's no server cost for us to recover, so there's nothing to charge for.

Are my images uploaded to a server?

No. Every compression happens locally in your browser using WebAssembly codecs. Your files never leave your device - you can verify this by opening your browser's Network tab while you compress.

How does compressing to an exact size work?

We run a binary search on encoder quality (and downscale only if needed) until the output lands within 5% of your target size. This hits an exact KB target reliably - most other tools only let you pick a vague quality slider.

Which formats are supported?

You can compress and convert between JPG, PNG, WebP and AVIF. HEIC photos from iPhones are supported too. PNGs use smart optimization for big savings without visible quality loss.

Is there a limit on file size or how many images I can do?

No limits. Compress one image or hundreds at once, of any size your device can handle - there's no daily cap and no per-file ceiling.

Ready to shrink something?

Scroll back up and drop a file, or jump straight into a tool.

Compress an image Merge PDFs

Built by Dakshesh B - privacy-first file tools for everyone.