Image sizes are one of the most common reasons websites load slowly. A single raw PNG screenshot can easily be 2MB, slowing down your website performance and hurting SEO scores.
Developed by Google, WebP is a modern image format that provides superior lossless and lossy compression. In this guide, we'll cover the advantages of WebP and how to convert files locally.
The Advantages of WebP Format
Compared to legacy JPG and PNG formats:
- Smaller File Sizes: WebP files are typically 25% to 30% smaller than JPEGs and PNGs at equivalent quality.
- Alpha Channel Support: Like PNG, WebP supports transparent backgrounds, making it ideal for web graphics and logos.
- Lossless & Lossy Modes: WebP can render pixel-perfect designs as well as highly-compressed photographic assets.
How to Convert JPG/PNG to WebP Online
- 1
Go to the OptiKit Convert to WebP Tool.
- 2
Select your PNG or JPG file from your local storage.
- 3
Click **Convert to WebP Now** to run the local canvas optimization logic.
- 4
Download your `.webp` file and integrate it into your website.
Zero Network Uploads
Unlike online converters that process your files on cloud infrastructure, OptiKit handles conversions locally inside your browser memory. This is faster and keeps your data completely secure.