Will WebP work in all browsers?

Yes, every current browser displays WebP: Chrome, Firefox, Edge and Safari. Safari supports it fully from version 16 and partly in 14 and 15. Internet Explorer never supported it.

Does WebP support transparency?

Yes. WebP supports alpha channel like PNG. You can convert PNG with transparency to WebP and keep the see-through pixels.

How much will my file shrink?

It depends on the source. This tool encodes lossy WebP at quality 70, so a PNG usually shrinks the most. A JPEG that was already heavily compressed may barely shrink, or even grow, so compare sizes before you swap.

Is there visible quality loss?

Sometimes. Every file is re-encoded as lossy WebP at quality 70, and there is no quality setting, so fine texture and small text can soften. Compare the download with the original before you replace it.

Can I convert WebP back to JPEG/PNG?

Yes, with most image editors or converters. WebP is an open format, not a proprietary one.

Should I serve only WebP or have fallbacks?

Serve WebP with JPEG/PNG fallback via <picture> element for maximum compatibility, or use a CDN that auto-converts.

What about AVIF? Is it better than WebP?

Often smaller. The Next.js docs put AVIF about 20% smaller than WebP, but WebP works in slightly more browsers, since Safari only added AVIF in version 16. This tool outputs WebP only.

Does WebP affect SEO?

Indirectly. Smaller images can load sooner, which helps Largest Contentful Paint, one of the Core Web Vitals. Google says good Core Web Vitals align with what its core ranking systems seek to reward.

Are uploaded files stored?

No. Files are processed in-memory and discarded immediately.

This tool handles one file at a time. For batches, use Google's cwebp command-line encoder or a library such as sharp.

Is there a file size limit?

10 MB per file. WebP also cannot hold an image wider or taller than 16,383 pixels, so resize larger images first.

Free Image to WebP Converter

Click to upload image

JPG or PNG up to 10MB

Convert JPEG/PNG to WebP for smaller files at similar visual quality. Free, no signup, no upload retention.

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4.7on Trustpilot

How to use the Image To Webp Converter, step by step

Real screenshots of the tool, taken while running it.

1
Choose a file
Upload a JPG or PNG up to 10 MB. Nothing is kept on a server longer than the request needs.
2
Check the preview
The image loads locally with its name and size.
3
Convert and rename
Convert to WebP and download saves the file straight away as image_to_webp_converter_by_grigora.webp, so rename it to describe the picture.

What the WebP Converter does

WebP is a modern web image format. Google measured lossy WebP at 25 to 34% smaller than comparable JPEG images at equal SSIM quality, it supports transparency like PNG, and every current browser can display it.

Upload a JPEG or PNG up to 10 MB and the tool re-encodes it as lossy WebP at quality 70. It keeps any transparency, turns the image upright using its EXIF orientation, and drops the metadata. The file downloads automatically as image_to_webp_converter_by_grigora.webp. Files are processed in memory and discarded.

How to convert to WebP

Four steps from upload to optimized download.

Upload your image

JPEG or PNG, up to 10 MB.

Click Convert to WebP and download

The tool converts the file and starts the WebP download automatically.

Save the WebP

The file saves as image_to_webp_converter_by_grigora.webp. Rename it, then use it in place of the original where your site supports WebP.

Keep a fallback

Keep the source JPEG or PNG available for legacy workflows if needed.

When developers and marketers use it

Six common workflows.

Pre-publish image conversion

Convert JPEG/PNG to WebP before CMS upload. Smaller files, faster pages.

Site speed-up sprint

Convert the hero images on your top organic pages to WebP, one file at a time. A lighter hero image can load sooner and help Largest Contentful Paint.

E-commerce product photos

Convert product photos before upload when your store platform does not convert them for you.

Mobile-first design

Mobile users on slow connections get the biggest win from smaller WebP files.

Landing page assets

Convert campaign landing page images before upload so visitors download fewer bytes.

CDN cost reduction

Serve WebP in place of JPEG or PNG wherever it comes out smaller, so each image request moves fewer bytes.

Platform-specific setup guides

How to deploy WebP on the platforms most teams use.

WordPress

WP 5.8+ supports WebP uploads natively.
For auto-conversion of existing JPEG/PNG, use ShortPixel or Imagify.
Configure CDN to serve WebP automatically when supported by browser.

Webflow

The image conversion tool in the Assets panel converts JPEG and PNG assets to WebP or AVIF.
Conversion replaces the original asset, so download a copy first.
Verify the served format with browser dev tools.

Shopify

Shopify auto-serves WebP via theme image filters where supported.
For lookbook editorial photos, manually convert to WebP.
Audit served formats periodically.

Next.js

next/image serves WebP by default to browsers that accept it; add image/avif to images.formats to serve AVIF too.
Images in a plain img tag are not optimized, so convert those before adding them to /public/.
Configure remotePatterns for external images.

Static sites

Hugo and Astro can output WebP from their built-in image processing; Jekyll needs a plugin.
For external CDN images, convert at source.
Convert one-off images with this tool.

Grigora vs. other WebP converters

Side-by-side feature comparison. Competitor details checked September 2026.

Capability	Grigora	CloudConvert	Squoosh	cwebp (command line)
Price	Free, unlimited	Free: 10 conversions a day	Free, open source	Free, open source
Where files are processed	Our server, in memory, never saved	CloudConvert servers	In your browser, never uploaded	Your computer
Quality setting	Fixed at 70	Adjustable	Adjustable	Adjustable (default 75)
Largest file	10 MB	1 GB (free plan)	Not stated	Set by your computer

Common errors and how to fix them

Eight issues teams hit when converting to WebP.

WebP image does not load on a viewer

Cause: Older app/browser does not support WebP.

Fix: Convert back to JPEG/PNG or update the viewer.

File size barely shrinks, or grows

Cause: The source was already heavily compressed, so re-encoding at quality 70 has little left to remove and can add bytes.

Fix: Compare the two files and keep whichever is smaller.

Transparency lost on conversion

Cause: You used a tool that strips alpha.

Fix: Use this tool, which preserves WebP alpha channel for PNG inputs.

Quality looks worse than expected

Cause: This tool always encodes at quality 70, and a JPEG source has already lost detail once.

Fix: For detailed photos or images with small text, export WebP from an image editor at a higher quality, or as lossless WebP.

Animated GIF lost animation

Cause: GIF animation flattens when converting to WebP via simple tools.

Fix: Use a dedicated GIF-to-WebP animation converter.

WordPress refuses to upload .webp

Cause: Older WP versions block .webp by default.

Fix: Update WordPress (5.8+ supports WebP) or allow image/webp through the upload_mimes filter.

Server serves wrong MIME type

Cause: Old server config does not recognize .webp.

Fix: Add image/webp to your nginx/apache MIME types config.

Output filename is generic

Cause: The converter saves every file as image_to_webp_converter_by_grigora.webp.

Fix: Rename the file on save to a descriptive, SEO-friendly name.

Frequently asked questions

Twelve answers about WebP conversion.

Related free tools

Other utilities that pair with the WebP Converter.

Convert to WebP right now

Upload, convert, download. Free, unlimited, no retention.

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