Free · Private · Runs in your browser

Compress any file in seconds

Images, video, audio, PDFs and archives — shrunk fast. Images compress right in your browser; nothing is uploaded. Free, with no dark patterns.

Runs entirely in your browser — files never leave your device.

How it works

Smaller files in three steps

No sign-up, no upload, no waiting. Images compress right in your browser.

  1. Drop your files

    Images, video, audio, PDFs or archives — drop a whole batch.

  2. We shrink them on your device

    Images compress right in your browser. Nothing is uploaded.

  3. Download — always smaller

    Get every file back, smaller, never larger. Or send one to Convert.

See the difference

Watch your files shrink

Real savings, no quality you’d notice. Example results — your numbers depend on the file.

  • JPG photo4.8 MB 0.7 MB85% smaller
  • PDF document12.4 MB 3.1 MB75% smaller
  • MP4 video86 MB 24 MB72% smaller

Figures shown are illustrative examples.

  • Private, on-deviceImages compress in your browser — never uploaded.
  • Batch by defaultDrop a whole folder, not one file at a time.
  • Never largerWe never hand back a file bigger than your original.

The suite

Try the rest of NIM

Every tool is free, and just as private. Stay in the suite — your files hand over without a re-upload.

Background Remover

Cut out any subject into a clean transparent PNG.

Object Eraser

Brush away a watermark, object, or blemish.

You’re here

Compress

Shrink images and PDFs without the quality drop.

Convert

Change formats fast — images right in your browser.