WebP Converter
Convert images between WebP, PNG, and JPG instantly — right in your browser.
Drop an image here or click to upload
PNG, JPG, WebP, GIF, and BMP supported
About This Tool
The TulTek WebP Converter changes an image's file format between WebP, PNG, and JPG using your browser's built-in Canvas API. Upload a file, pick the format you need, adjust the quality if it's a lossy output, and download the result — nothing is ever uploaded to a server, so conversion is instant and your images stay completely private.
Why Use a WebP Converter?
WebP is a modern image format developed by Google that typically produces files 25–35% smaller than an equivalent JPEG at the same visual quality, and 26% smaller than PNG for images that need transparency. Every major browser — Chrome, Firefox, Safari, and Edge — has supported WebP since 2020, which is why it's become the default recommendation in Google PageSpeed Insights and Lighthouse audits for reducing image payload.
Not every workflow can use WebP directly, though. Some CMS platforms, email clients, and older design tools still expect PNG or JPG, and some print or legal documents require a universally compatible format. Converting between the three lets you keep a single source image and export whichever format the destination actually needs, without reaching for desktop photo-editing software.
The choice of target format matters: PNG is lossless and ideal for screenshots, logos, and graphics with transparency or sharp edges, but it produces larger files for photographs. JPG is a solid universal choice for photos but flattens transparency to a solid background and always applies some compression. WebP supports both lossy and lossless modes plus alpha transparency, making it the most flexible option when the destination supports it.
Because this converter runs entirely in your browser using the HTML5 Canvas API, there is no upload step and no wait for a server round trip. The image is decoded, redrawn onto an off-screen canvas, and re-encoded to the target format locally — the same approach browsers use internally to render images — so conversion is fast even for large photos and your files never leave your device.
This makes the tool well suited for bulk website prep work: converting a batch of camera photos to WebP before uploading them to a blog, turning a WebP graphic back into PNG for a design tool that doesn't support it yet, or producing a JPG fallback for email attachments and older systems.
Frequently Asked Questions
Is my image uploaded to a server?
No. Conversion happens entirely in your browser using the Canvas API. Your image is never sent anywhere — there's no upload and no server-side processing involved.
Which format should I choose?
Choose WebP for the smallest file size on modern websites, PNG for logos, screenshots, or images that need transparency with zero quality loss, and JPG for maximum compatibility with older software and email clients.
Why is there no quality slider for PNG?
PNG is a lossless format — it doesn't have a quality setting the way JPG and WebP do. File size for PNG depends on image complexity, not a quality percentage.
What happens to transparency when converting to JPG?
JPG doesn't support transparency, so any transparent areas are automatically filled with a white background during conversion.
Why did WebP conversion fail in my browser?
This is rare and usually only affects very old browser versions. All current versions of Chrome, Firefox, Safari, and Edge support exporting WebP. If it fails, try updating your browser or convert to PNG/JPG instead.