Image Optimizer

Images shrink themselvesthe moment you download.

Every image you save is compressed, converted, and resized on your device - nothing ever uploads.

★★★★★

Free to start · No card needed · Sets up in a minute

Image Optimizer is one of 15+ tools. 1 free extension, everything included, zero bloat.

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Live demo

Pick a format. That's the entire workflow.

Download an image - InTab re-encodes it and saves the lighter file automatically.

Downloads
On-device
photo.webp - 512 KB, 88% smaller

Set format, quality, resize, and size cap once - then downloads just happen.

Add to Chrome
Before / after

Retire the online-compressor tab.

Save, compress, re-download, rename - InTab deletes that loop.

The old way

  • Upload your images to someone else's server and hope.
  • Drag, wait, re-download, rename - for every single file.
  • Forget once, and a 4 MB screenshot lands in Slack.
  • Open a heavy editor just to export a smaller copy.

With InTab

  • Optimization runs automatically on your image downloads.
  • Format, quality, resize, and size cap - set once.
  • Everything happens on your device. Nothing is uploaded.
  • Can't be optimized? The original arrives untouched.
How it works

From download to done, hands-free.

No app, no button - the optimizer sits between the web and your Downloads.

1

You download an image

Save any PNG, JPEG, WebP, or AVIF - InTab catches it instantly.

2

It's re-encoded on-device

Your browser's codecs, plus WebAssembly for AVIF, decode and re-encode it locally.

3

The lighter file lands

It drops into Downloads with a savings note and a before/after Compare.

The controls

Small files, on your terms.

Every knob the job needs - and none it doesn't.

Five output options

Keep the original format, or convert to PNG, JPEG, WebP, or AVIF.

One honest quality slider

Dial quality from 30 to 100 - 80 by default keeps images sharp.

Resize on the way in

Cap width or height in pixels, or scale by percent - InTab never upscales.

Hit an exact file size

Set a size cap in KB or MB - InTab lowers quality until it fits.

Your file always arrives

Anything InTab can't optimize - animated images, huge files, unreadable formats - passes through untouched.

Skip any job in one click

The progress toast has a one-tap Download original and a before/after Compare for every job.

Who it's for

Anyone whose images end up somewhere.

If a file is leaving your machine, it should leave lighter.

Design & dev

Assets land in the repo already WebP or AVIF - no size complaints in review.

Marketing & docs

Decks, CMS uploads, and help-center images land under the size limit, first try.

Everyone else

Screenshots into Slack and email stop being multi-megabyte attachments.

Privacy

Your images never leave your machine.

No upload, no cloud queue - decoding and encoding happen in your browser.

  • On-device processingNative browser codecs do the work - WebAssembly handles AVIF - nothing leaves your device.
  • No trackingInTab never tracks URLs, page content, or what you type.
  • Careful by designAnimated images stay intact, other extensions ignored, unreadable files ship as original.
Good questions

Before you ask

No. Optimization runs entirely on your device using your browser's native codecs and WebAssembly. Nothing is sent to a server, and InTab never tracks URLs, page content, or what you type.

Lighter downloads, starting with the next one.

Install InTab free and get 15+ more tools too - tab manager, AI writer, screenshots, and more.

Instant 1-click install · No credit card required · 100% private

Add to Chrome · Free Forever