YOUR EVERYDAY IMAGE TOOLKIT

Big ideas.
Small files.
All in your browser.

Free image tools that work in your browser.
Compress, resize, crop and convert—without uploading
the files to a 4ool server.

Find your tool Free to use. No sign-up.
JPGPNGWebPThree formats. Endless everyday uses.
LESS SIZE. SAME POSSIBILITIES.
weekend-away.jpg2400 × 1600
Ready for whatever’s next.JPG
✓
LIGHTER BY DESIGN4.2 MB → 1.1 MB
−74%
Illustrative example · results vary by image
A CHANGE OF FORMAT

The right format
for your next step.

From a photo for your website to a graphic for your presentation. Make it fit.

JPGPNGWebP
YOUR IMAGES STAY YOURS

Your browser does
the heavy lifting.

How local processing works

No image-file uploads

Selected image files are processed on your device and are not uploaded to 4ool servers.

No account, no extra steps

Open a tool, choose an image and get on with your day. Your files are not stored by the tool.

THE COMPLETE TOOLBOX

A tool for the task at hand.

12 TOOLS. ALL FREE.
A LITTLE FORMAT KNOW-HOW

JPG, PNG or WebP?

Different strengths. The same simple workflow.

01 /

JPGThe photo favorite

A practical choice for photographs and broad compatibility. Lossy compression keeps files smaller, but JPEG cannot preserve transparency.

Make your photos lighter
02 /

PNGClarity, down to the pixel

Lossless storage and transparency make PNG useful for screenshots, diagrams and graphics. Photographs can produce much larger files.

Explore a smaller format
03 /

WebPMade for the web

A flexible web format that supports transparency. Our tools use browser quality controls to balance detail and file size; results depend on the image.

Get your images web-ready
GOOD QUESTIONS

A few things
you might wonder.

Simple tools should come with
straight answers.

Get to know 4ool
Are my images uploaded to a server?

Images selected for these tools are processed locally in your browser and are not uploaded to 4ool servers. Loading the website still creates ordinary web requests.

Which image formats can I use?

The tools support still JPG/JPEG, PNG and WebP images. Both .jpg and .jpeg are accepted. HEIC, HEIF, AVIF, GIF, SVG, TIFF, BMP and RAW are outside this version’s scope.

Do I need an account or subscription?

No. All twelve tools are free to use without creating an account or signing in.

Will compression always make a file smaller?

No. The outcome depends on the source, format and browser encoder. PNG re-encoding in particular may produce a larger file. Each result shows the actual size comparison.

Why are there file and dimension limits?

Large images can use much more memory while decoded than their file size suggests. This version limits files to 25 MiB, 24 megapixels and 10,000 pixels on either side to reduce the risk of exhausting browser memory.