Are images uploaded to a server?

No. All processing happens entirely in your browser. Your images are never sent to any external server.

Can I compress PNG files?

PNG uses lossless compression so reductions are smaller than JPG, but unnecessary metadata is stripped to reduce file size.

🖼️ Image Tool

Image Compressor

Q: How does quality change after compression?

You can adjust quality from 10% to 100% using the slider. Around 80% offers the best balance between file size and visual quality.

Compress JPG, PNG & WebP images while preserving quality. Runs entirely in your browser — images never leave your device.

100% FreeNo Sign-upInstant ResultsPrivate

Compression Quality80%

Smaller fileHigher quality

Drop image here or click to upload

JPG, PNG, WebP — max 20 MB

How to Use

📂

Step 1

Upload Image

Drag & drop or click to upload your JPG, PNG, or WebP image

⚙️

Step 2

Set Quality

Adjust compression quality with the slider (80% recommended)

⬇️

Step 3

Download

Download your compressed image with one click

Frequently Asked Questions

What file formats are supported?▼

JPG, PNG, and WebP formats are supported. Maximum file size is 20 MB.

Are images sent to a server?▼

No. All processing is done entirely in your browser. Your images stay private.

How does quality change after compression?▼

Use the quality slider to control output. Around 80% offers the best balance.

What is the max upload size?▼

You can upload images up to 20 MB.

🗜️ Complete Image Compression Guide

Speed Up the Web with Image Compression

Types of compression, WebP conversion, Core Web Vitals impact, and choosing the right tools.

Image Compression Basics

Image compression is one of the most effective measures to improve website loading speed. Google reports that images account for 50-60% of average webpage transfer size. Proper optimization can cut page load time by more than half.

Lossless vs Lossy Compression

Lossless: Retains all data. PNG, WebP lossless. Best for logos and screenshots
Lossy: Discards some data for large size reduction. JPEG, WebP lossy. Best for photos
WebP: Developed by Google. 25-34% smaller than JPEG at equivalent quality
AVIF: Next-gen format. 20-50% smaller than WebP but limited browser support

Connection to Core Web Vitals

Google's Core Web Vitals metric LCP (Largest Contentful Paint) measures how quickly the page's largest element loads. This is often the hero image. Optimizing this image can dramatically improve your LCP score and search ranking.

Format Compression Performance

JPEG100%

Photos, gradients

PNG150-200%

Logos, transparent images

WebP65-75%

All uses (recommended)

AVIF45-60%

Smallest size (newest)

Practical Image Compression Workflow

Here is the image optimization workflow used by professional developers and web designers. Combining automation tools ensures consistent optimization for every image without manual work each time.

Quality Settings by Use Case

Hero images / large banners: JPEG 80-85% or WebP 80%
Product thumbnails: JPEG 70-80% or WebP 75%
Avatars / profile photos: WebP 75-80%
Logos / icons: PNG (lossless) or SVG (vector)
OGP images (social share): JPEG 85-90% (minimize quality loss)

Automatic Optimization with next/image

Next.js's next/image component automates WebP conversion, responsive sizing, and lazy loading. Leveraging srcset attributes auto-serves the optimal image size for each device's screen.

Squoosh

Browser tool

By Google. Side-by-side quality preview

Sharp (Node.js)

npm package

Fast automation for build pipelines

ImageMagick

CLI tool

Batch compress hundreds of images server-side

TinyPNG

API / Web

High compression service specialized for PNG & JPEG