Why does converting PNG to JPG increase file size at high quality?

PNG is lossless and may already be highly compressed. JPG at 100% quality stores full data without the efficiency gains of lossy compression, resulting in a larger file.

Does converting reduce image quality?

Converting between lossless formats (PNG to PNG) has zero quality loss. Converting to a lossy format (PNG to JPG) introduces compression artifacts, but adjusting the quality slider controls the trade-off.

Can I convert animated GIFs to WEBP?

Yes. WEBP supports animation and often produces smaller animated files than GIF. The tool preserves the animation frames during conversion.

What is AVIF and when should I use it?

AVIF is a newer format with superior compression, especially for high-resolution images. Use it when targeting modern browsers. Provide a JPG or WEBP fallback for older ones.

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Image Converter

Name: Image Converter
Author: Zilita Team

Convert images between popular formats

Introduction

Image Converter transforms images between formats (PNG, JPG, WEBP, GIF, BMP, AVIF) and adjusts quality, dimensions, and compression. All processing happens in the browser.

What the Tool Does

You upload an image, select the target format, and adjust quality and resize options. The tool converts the image entirely in the browser using canvas APIs, then lets you download the result. No files are uploaded to any server.

Why It Is Useful

Different platforms and use cases require different image formats. Social media prefers JPG, web performance favors WEBP, transparency needs PNG, and print shops may require TIFF. Converting between them quickly saves time and avoids format-related rejections.

Who Should Use It

Web Developers

optimizing images for faster page loads

Content Creators

preparing images for platform-specific upload requirements

E-Commerce Sellers

converting product photos to meet marketplace specs

Designers

converting between formats when moving assets between tools

Features

Support for PNG, JPG, WEBP, GIF, BMP, and AVIF output formats
Quality slider for lossy formats to balance size and visual fidelity
Batch conversion for multiple files at once
Dimension resizing with aspect ratio lock
File size preview before downloading

How to Use It

Drag and drop one or more images onto the upload area, or click to browse your files.
Select the target format from the dropdown — WEBP is recommended for web use.
Adjust the quality slider if the output format supports it; 80% is usually a good balance.
Click convert and download the resulting file(s) once processing finishes.

Practical Examples

Optimizing Blog Screenshots

A blogger has 50 high-resolution PNG screenshots that total 80 MB. Converting them to WEBP at 80% quality brings the total down to 6 MB with no visible quality loss, dramatically improving page load speed.

Resizing for Marketplace Specs

An Etsy seller needs product photos in exactly 2000x2000 pixels JPG format. Uploading the original 4000x4000 PNGs and resizing during conversion produces marketplace-compliant files in one step.

Benefits

Browser-based processing keeps your images private — nothing is uploaded externally
Batch conversion saves time when working with large collections of images
Quality slider lets you find the exact balance between file size and visual clarity
Supports modern formats like AVIF and WEBP that many simple converters skip

Tips

Convert to WEBP for web backgrounds and illustrations — the compression is significantly better than JPG
Keep PNG for images with transparency since JPG does not support alpha channels
Always check the converted file size; if it is larger than the original, the source was already well-optimized

Frequently Asked Questions

WEBP offers the best compression-to-quality ratio for photos. JPG is a safe fallback for older browser support. Use PNG only when you need transparency.

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About the Author

Zilita Team

Privacy-First Productivity & AI Experts

The Zilita Team builds privacy-first browser tools that help teachers, students, developers, businesses, and creators work more efficiently without sacrificing data privacy.

42 articles publishedLast updated: July 2026

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