Convert Images to WebP Instantly.

Convert JPG and PNG to next-gen WebP formats, or WebP back to JPG. Reduce file size to improve website speed - fast, secure, and fully offline.

Upload Image
JPG → WebP
Original JPG
1.2 MB
→
Next-Gen WebP
350 KB

Drag & Drop to Convert to WebP

Supports JPG, PNG, and WebP

Our Toolkit

Premium tools designed for perfect files.

Image Compressor

Reduce image size instantly without losing quality or waiting for uploads.

Image Converter

Convert seamlessly between JPG, PNG, and WebP formats with ease.

Image Resizer

Resize images to exact pixel dimensions for social media or web.

WebP Converter

Upgrade legacy images to the modern WebP format for 30% smaller files.

QR Generator

Create high-quality, non-expiring QR codes for URLs, WiFi, text, and more.

Image Cropper

Crop, rotate, and frame your photos with absolute precision for any platform.

PDF to Word

Convert PDF documents to fully editable Word files securely.

HEIC to JPG

Instantly convert Apple HEIC photos to standard JPG format right in your browser.

AI Watermark Remover

Strip hidden C2PA metadata from AI generated images to protect your privacy.

Background Remover

Remove backgrounds automatically from any photo using AI.

Online Ruler

Measure physical objects accurately on your screen in cm, inches, and pixels.

Why Use WebP Format?

The modern standard for high-performance websites.

Superior SEO

Google prioritizes fast-loading websites. Converting heavy JPGs to WebP drastically improves your Core Web Vitals.

Incredible Compression

WebP offers 25% to 34% smaller file sizes than comparable JPEGs at the exact same quality.

Preserves Transparency

Unlike JPEG, WebP fully supports transparent backgrounds just like PNGs, but at a fraction of the file size.

Free Online WebP Converter

Google developed the WebP image format specifically to make the internet faster. WebP images are significantly smaller than their legacy JPEG and PNG counterparts while maintaining the exact same visual quality. Whether you are a web developer, blogger, or SEO specialist, our WebP to JPG converter and JPG to WebP converter are absolute essential tools for modern web optimization.

How to Convert Images to WebP (Step-by-Step)

  1. Upload your legacy image: Drag and drop your JPG or PNG image into the converter box above, or click the browse button to select a file.
  2. Select WebP Format: In the settings panel, ensure that 'WebP' is selected as the target format.
  3. Convert Instantly: Click the 'Convert Image' button. The conversion happens instantly in your browser without any server delays. Finally, click 'Download Converted Image' to save your new, highly optimized WebP file.

Why Convert Images to WebP?

WebP provides superior lossless and lossy compression for images on the web. According to Google's official documentation, WebP lossless images are 26% smaller than PNGs, and WebP lossy images are 25-34% smaller than comparable JPEGs at equivalent SSIM quality indices. By converting your site's images to WebP using SizeHex, you can drastically reduce page load times, which directly improves your Largest Contentful Paint (LCP) score, Core Web Vitals, and consequently, your search engine rankings.

How to Convert WebP back to JPG or PNG?

While WebP is amazing for modern websites and supported by all modern browsers (Chrome, Safari, Firefox, Edge), it is sometimes not supported by older desktop software, legacy CMS platforms, or certain social media apps. If you have downloaded a WebP image and find that you cannot open it or edit it in Photoshop or older viewers, our tool can act in reverse. Simply upload the WebP file and instantly convert WebP to standard JPG or PNG right in your browser, making the file universally compatible again.

Lightning Fast, Private Conversion

Because SizeHex utilizes local, client-side HTML5 Canvas technology, your images are converted in milliseconds using your own device's processor. There is no need to upload heavy, high-resolution files to a cloud server and wait in a queue for a download link. Your data remains completely private and secure, and the tool works flawlessly on both mobile phones and desktop computers.

Who Should Convert Images to WebP?

  • Website Owners & Bloggers: Reduce image payloads across your entire site, dramatically improving Google PageSpeed scores and Core Web Vitals.
  • E-commerce Stores: Product images are the largest assets on most product pages. Converting them to WebP can reduce page weight by 30%+ and improve conversion rates through faster loading.
  • Web Developers: Automate the last step of your image optimization workflow before deploying to production or CDN.
  • SEO Specialists: WebP adoption is one of the easiest wins to achieve a green "Serve images in next-gen formats" recommendation in Google Lighthouse audits.

Frequently Asked Questions

WebP is a modern image format created by Google that provides superior compression for images on the web, making them much smaller in file size than JPG or PNG while retaining the same quality.

Some older operating systems and image viewers do not natively support WebP. You can use our tool to instantly convert the WebP file into a standard JPG or PNG so you can view and edit it anywhere.

Yes! Google heavily factors page speed into its ranking algorithm. By converting your website's images to WebP, your pages will load faster, improving your Largest Contentful Paint (LCP) score and overall SEO.

Absolutely. SizeHex is 100% free, with no daily limits, watermarks, or account registration required.

Yes! Unlike JPEG, WebP fully supports alpha channel transparency — just like PNG. This means you can convert a transparent PNG to WebP and retain the transparent background at a much smaller file size. WebP lossless images with transparency are typically 26% smaller than equivalent PNGs.

WebP is supported by all modern browsers: Google Chrome (since 2010), Firefox (since 2019), Microsoft Edge (Chromium-based), and Apple Safari (since Safari 14 on macOS Big Sur and iOS 14). This covers over 96% of all active web browsers globally, making WebP a safe choice for all modern websites.

According to Google's own research, WebP lossy images are 25–34% smaller than equivalent JPEG images at the same visual quality (measured by SSIM quality index). WebP lossless images are 26% smaller than PNGs. In real-world testing, a 500KB JPEG photo can often be converted to WebP and come in under 350KB — with no visible quality difference.