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Drop images anywhere

Release to add them to the tool

Image compression API

The fastest image compression API

Convert, compress and optimize images in WebP and AVIF format with high quality and the best compression ratio.

Get started for free View pricing
✓ Easy to integrate ✓ Powerful API ✓ Scalable & secure
Free compression tool

Compress images instantly

Drop your images, preview the result, adjust quality, and download WebP output without leaving the page.

Drag and drop or
upload here

Add one image for instant preview, or many images for batch mode.

Fast, simple, and efficient — just drop your images and download the result.
Storage saved 460.28 MB lighter images delivered
Images optimized 303 compressed through Compresskit.net

All image formats. Maximum performance.

Compresskit.net supports the most modern image formats to deliver the best quality with the smallest size.

WEBP

WebP Compression

Perfect balance between quality and file size. Ideal for websites and apps.

  • Up to 85% smaller than JPG/PNG
  • Lossy & lossless compression
  • Transparency support
  • Widely supported by all modern browsers
.webp
AVIF

AVIF Compression

Next-gen image format for even better compression and future-ready delivery.

  • Up to 90% smaller than JPG/PNG
  • Superior quality at smaller sizes
  • HDR & wide color support
  • Future-proof format
.avif

Built for websites, plugins, and apps

Use the public web tool, private API keys, WordPress automation, and dashboard analytics from one clean SaaS interface.

⚡

Fast compression

Optimized presets for balanced quality, smallest size, ecommerce images, social images, and high quality delivery.

🔐

Protected API

API keys, domain binding, usage limits, and private dashboard access for production websites.

Ⓦ

WordPress automation

Compress uploads, run bulk compression, and sync usage back to the SaaS dashboard.

📊

Analytics

Track storage saved, images optimized, domains, API usage, and plugin installs from the dashboard.

Image compression and conversion without visible quality loss

Can you tell the difference?

Drag the separation line to compare the compressed and converted image with the original. The file size is reduced by more than 85%.

Still not convinced? Select your own image and see the difference yourself.

Original PNG image before compression
Compressed WebP image after optimization
Before
After
PNG 1.48MB
WEBP 67KB
Original size 1.48MB Your original source file
Compressed size 67KB Compressed WebP result
File size reduction 95% Saved with no visible quality loss
Try your own image Select an image and watch Compresskit reveal the optimized WebP version over the original in the slider view.
JPG, PNG and WebP supported

Simple, transparent pricing

Start with WebP on Free, then upgrade to Pro for WebP + AVIF, more installs, more API keys, and premium presets.

Free

Basic compression

$0 / month
  • 1 plugin install
  • 1 API key
  • WebP conversion
  • Usage statistics
  • Sync
  • Domain registration
  • Basic presets
Get started free
Best value

Pro

Advanced compression + automation

$14.99 / year
  • 2 plugin installs
  • 2 API keys
  • WebP + AVIF
  • Tiny preset
  • Custom preset
  • SaaS analytics
  • Future premium features
View Pro