100% Client-Side • Private & Secure • Zero Cloud Upload

Free Image Converter & Compressor

Bulk convert and compress PNG, JPG, WebP, AVIF, and GIF directly in your browser. Fast, lossless or lossy quality, custom resizing, and bulk ZIP download.

100% Private (Local Canvas) Lightning-Fast Processing No Watermarks or Limits One-Click ZIP Export

Drag & Drop Your Images Here

or click to browse from your device

Supports: PNG, JPG, WebP, AVIF, GIF Up to 30 images per batch Max 25MB each

Conversion & Compression Settings

0 Images

How to Convert & Compress Images Online

Optimize images for your website, social media, or app in 3 simple steps.

1

Upload Your Images

Drag and drop single or multiple image files (PNG, JPG, WebP, AVIF, GIF) directly into the upload area above.

2

Customize Settings

Select your desired output format, adjust the compression slider to balance quality and file size, and scale dimensions if needed.

3

Download Converted Files

Download your optimized images individually or save the entire batch at once with our one-click ZIP packaging.

Supported Image Formats & Codecs

Understand format strengths, compression ratios, and optimal web use cases.

Format Transparency Animation Typical Savings Best Use Case
WebP Yes Yes 30% - 70% smaller than JPG/PNG Modern websites, blogs, e-commerce, Google PageSpeed score
AVIF Yes Yes 50% - 80% smaller than JPG Next-generation web apps, HDR graphics, extreme compression
JPEG / JPG No No Moderate lossy compression Universal compatibility across legacy browsers and print media
PNG Yes No Lossless compression Logos, diagrams, screenshots, graphics with crisp transparent edges
GIF Yes Yes Indexed 256 colors Short looping animations, simple banners, reaction memes
100% Client-Side Privacy

All compression and conversion runs entirely inside your browser using the HTML5 Canvas API. Your photos never leave your device.

Boost Core Web Vitals

Converting heavy PNGs and JPEGs to modern WebP or AVIF drastically slashes Largest Contentful Paint (LCP) and page load times.

Bulk ZIP Downloader

Easily convert dozens of photos simultaneously and download all results packed inside a single clean ZIP archive.

Live Before/After Compare

Inspect visual fidelity side-by-side with our high-resolution comparison viewer to ensure no perceptible quality loss.

Frequently Asked Questions

Learn more about image optimization, formats, and best practices.

Are my uploaded images stored on your servers?
No! Unlike cloud-based converters, this tool works entirely on the client side inside your web browser. Your images are processed strictly in your local memory using native browser APIs and are never uploaded, stored, or viewed by anyone.
Why should I convert my images to WebP or AVIF?
WebP and AVIF are next-generation image formats recommended by Google. They provide superior compression and visual quality compared to traditional JPEG and PNG, reducing file sizes by 30% to 80% without noticeable degradation. Smaller image files mean faster website loading and better SEO rankings.
How does transparency work when converting PNG to JPEG?
The JPEG format does not support transparency (alpha channels). When you convert a transparent PNG to JPEG, our tool automatically fills the transparent background with a solid color (white by default, or your custom chosen background color) to ensure your image looks clean without black borders or artifacts.
What happens when I convert an animated GIF?
Standard image formats like JPEG, PNG, and canvas-rendered WebP are single-frame graphics. When converting an animated GIF to these formats, our tool extracts the highest quality first frame as a still photo and alerts you in the card so you always stay informed.
What is the optimal compression quality setting for web images?
For most websites and blogs, a quality setting between 80% and 85% offers the perfect sweet spot between tiny file size and sharp visual fidelity. You can also use our interactive Before/After comparison tool to check visual quality before downloading.