Skip to tool
shrinkfold

Free · no limits · nothing uploaded

Compress images in bulk

Shrink hundreds of JPGs, PNGs, WebPs and iPhone photos at once – with MozJPEG quality, transparency kept and your folder structure intact.

Fewer megabytes. Same pixels that matter.

Drop files, folders or a ZIP here Images (JPG, PNG, WebP, HEIC, AVIF), PDFs, videos (MP4, MOV), audio (WAV, MP3, FLAC, M4A) and SVGs
  • Runs in your browser
  • Folder structure kept
  • No sign-up
  • No file limit
Settings Defaults work for most files
Every image is optimised for its real size on the page. Text, vectors and plans stay sharp.
Takes about as long as the video itself.
WAV, FLAC, AIFF, M4A and MP3 become MP3 – plays everywhere.
Transparent PNGs automatically become WebP so transparency is kept.

Quality first, then size

Shrinkfold uses MozJPEG – the same encoder trusted by image CDNs – and searches for the highest quality that hits your target, e.g. 1.5 MB at 2560 px. Photos keep their colour, orientation is corrected automatically.

Logos and transparent PNGs

Images with transparency are detected automatically and saved as WebP with alpha channel, so your logos don’t suddenly get white boxes.

Why Shrinkfold

Built by people who send heavy files every day

1

Folders stay folders

Drop a whole project folder or ZIP. You get the same structure back – nothing to re-sort, no renamed chaos.

2

Smarter PDF compression

Instead of crushing the whole file, every image is resized to its real size on the page. Text, vectors and plans stay crisp.

3

Private by design

Everything runs locally in your browser. Your files never touch a server – perfect for NDAs and client work.

4

No limits, no account

No file caps, no daily quota, no watermark, no sign-up. Free, funded by friendly local ads.

How it works

Three steps, zero uploads

  1. Drop

    Files, folders or a ZIP – images, PDFs, videos and SVGs together.

  2. Shrink

    Pick a target like “email under 10 MB” or keep the smart defaults.

  3. Save

    Download single files, one ZIP, or write straight into a folder.

FAQ

FAQ

Can I compress iPhone HEIC photos?

Yes, in Safari on Mac and iPhone. Other browsers can’t decode HEIC yet – export as JPG first or open Shrinkfold in Safari.

How many images can I compress at once?

As many as you like. Drop a folder with thousands of images – there is no limit.

Should I use JPG or WebP?

JPG works everywhere (email, Office, print shops). WebP is around 25–35 % smaller and ideal for websites.

Is Shrinkfold really free?

Yes. No limits, no watermark, no account. We earn money with small, clearly marked local ads and a branded version for agencies.

Are my files uploaded anywhere?

No. Compression runs entirely in your browser on your own device. You can even disconnect from the internet after the page has loaded.

Is there a file size limit?

No artificial limit. The only limit is your device’s memory – modern laptops handle multi-gigabyte folders. For very large batches use “Save to folder” in Chrome or Edge.

Does it keep my folder structure?

Yes. Drop a folder or ZIP and the result has exactly the same sub-folders and file names – only smaller.

Will the quality get worse?

Text, fonts and vector graphics are never changed. Photos are re-compressed as little as needed: each image is measured on its own and resized only to the resolution its real size on the page requires. If compressing doesn’t save anything, you get your original back.

More tools

Compress PDFCompress videoCompress audioCompress folderOptimize SVG

Running an agency?

Get Shrinkfold with your own logo, colours and presets – for your team and your clients.

Branded version →