The Best Image Compressor Chrome Extension
ShrinkTo Pro compresses any image to an exact size - 20 KB, 100 KB, anything - straight from your browser toolbar. No uploads, no subscriptions, no limits.
One-time payment · lifetime license · 30-second setup from the Chrome Web Store
Compress images to an exact KB size
Every other image compressor extension gives you a vague quality slider and a surprise file size. ShrinkTo Pro flips that: you type the size you need - 20 KB for an exam portal, 100 KB for a form, 500 KB for email - and it searches for the highest quality that fits your byte budget. First try, every time.
And it never makes things worse: if your file is already smaller than the target, you get it back untouched. That's the same exact-size engine behind shrinkto.com's image compressor, living in your toolbar.
Right-click any image, anywhere on the web
See an image on a page you need smaller? Right-click it and choose “Compress this image with ShrinkTo”. No saving to your desktop first, no hunting for the file, no re-uploading to some website - the image lands in the compressor already loaded, ready for your target size.
It's the fastest path from “this photo is 4 MB” to “here's a 100 KB copy” that exists in Chrome.
Batch compress, rename, save all
Drop in a whole folder of photos and compress them together - each one hitting your target size. Click any filename to rename it before saving, then grab everything with one Download all. Perfect for application paperwork (photo + signature at different sizes), product images, or a camera roll before sharing.
Preparing files for an online form? Our guide to compressing photos to 20 KB or 50 KB pairs perfectly with the extension.
100% private, by design
Almost every “free” image compressor uploads your files to a server you know nothing about. ShrinkTo Pro compresses entirely inside your browser - your images never leave your device, there are no accounts for compressing, and it even works offline.
That makes it the image compressor you can safely use on passport photos, ID scans, signed contracts and anything else that shouldn't travel. How that works under the hood: compressing images without losing quality.
Up and running in 30 seconds
- Add to Chrome. Install ShrinkTo Pro from the Chrome Web Store - it works in Chrome, Brave, Edge and Opera.
- Pay $2 once. Secure checkout via Dodo Payments. No subscription, no recurring anything.
- License activates itself.After payment you're redirected back and the extension unlocks automatically - your key also arrives by email for safekeeping.
- Compress forever. Unlimited images, every update included, on up to 3 browsers.
Why it beats every other image compressor
| Feature | ShrinkTo Pro | Online compressor sites | Subscription extensions |
|---|---|---|---|
| Price | $2 once, lifetime | Free with limits / ads | $3-9 every month |
| Exact-KB targeting (20 KB, 100 KB…) | Yes | No | No |
| Images stay on your device | Yes | No | varies |
| Right-click compress on any page | Yes | No | varies |
| Batch + rename before saving | Yes | limited | varies |
| File count / size limits | None - unlimited | Daily quotas | Credit packs |
| Works offline | Yes | No | No |
One price. Yours forever.
$2 one-time
- Exact-KB compression (20 KB → 1 MB+ targets)
- Right-click compress on any website
- Unlimited images, batch + rename
- JPEG, PNG & WebP output
- 100% on-device - works offline
- License for 3 browsers, lifetime updates
Less than a coffee. Cheaper than one month of any alternative.
Frequently asked questions
Is ShrinkTo Pro really a one-time payment?
Yes. You pay $2 once and the license is yours for life - all updates included. No subscription, no credits, no monthly quota. The license key arrives by email and activates automatically after checkout.
What makes this the best image compressor Chrome extension?
Three things most extensions can't do: exact-KB targeting (type 100 KB and the output actually lands there), fully on-device compression (your images never touch a server), and a never-bigger guarantee - if compression can't beat your original file, you get the original back.
Does the extension upload my images anywhere?
Never. Compression runs entirely inside your browser on your own device. It even works offline. That makes it safe for passports, IDs, contracts and any sensitive photo an online compressor shouldn't see.
Which image formats are supported?
JPEG, PNG and WebP - both as input and output. Auto mode keeps each image's format; or force everything to JPEG, WebP or PNG. Exact-KB targets work for JPEG and WebP output.
How exact is the exact-KB compression?
The extension binary-searches encoder quality until the file lands within a few percent of your target - typically 94-100% of the byte budget. A 50 KB target usually produces a 47-50 KB file on the first try.
On how many browsers can I use one license?
Your license activates on up to 3 browsers, and you can deactivate a seat anytime from the extension's settings to move it to a new machine.
Stop guessing file sizes.
Join ShrinkTo Pro and hit every upload limit on the first try.
Get the extension - $2 lifetimePrefer the free web version? Compress images on shrinkto.com