SF Tools · Image Tools

🖼️ WebP Converter

Convert unlimited PNG and JPG images to WebP format instantly in your browser. Batch process, resize, set quality, choose lossless or lossy — then download individually or as a ZIP. No uploads. 100% private.

✓ Live Tool ✓ 100% Free 🔒 No Uploads ∞ Unlimited Files

🔒 Zero Upload ✓ Magic Byte Verified ✓ Unlimited Files ✓ ZIP Download ✓ Resize & Crop ✓ Lossless Mode

🖼️

Drop images here — no limit

PNG · JPG · JPEG · All files verified before processing

Browse Files

Unlimited files · 50 MB per file · PNG & JPG only · All processing in-browser

Quality

Encoding

Background

Resize Mode

Width (px)

Height (px)

Upscale

Allow upscaling

Download As

ZIP Filename

Filename Prefix

Auto-Download

After convert

0 / 0

All processing happens in your browser — no data ever leaves your device

Free Online WebP Converter — Fast, Private & Unlimited

WebP Forge converts your PNG and JPG images to WebP format directly in your browser. No file uploads, no server processing, no size limits — just drag, drop, and download.

⚡ Instant Batch Conversion

Convert unlimited PNG and JPG images to WebP in one go. Drop your entire image folder, set your quality, and hit Convert. Each file is processed locally in your browser.

🔒 100% Private — Zero Upload

Your images never leave your device. All conversion happens using the HTML5 Canvas API locally. No backend server, no storage, no tracking.

📦 Download as ZIP Archive

Converted multiple images? Download them all at once as a single ZIP file with a custom filename and optional file prefix.

⤢ Resize While Converting

Resize images at the same time you convert them. Choose from five resize modes: by width, height, fit inside a bounding box, exact dimensions, or scale by percentage.

🎛 Full Quality Control

Adjust WebP quality from 1 to 100 with a live slider. Switch between Lossy mode for smaller files or Lossless mode to preserve every pixel.

🌐 Why Use WebP?

WebP produces files 25–34% smaller than JPEG and up to 26% smaller than PNG at equivalent quality — improving page load speed and Core Web Vitals scores.

How It Works

Convert in 4 Simple Steps

1
Drop your images — Drag and drop PNG or JPG files onto the upload area, or click Browse Files to select them.
2
Set your options — Adjust quality, choose resize mode, and pick your output format in the settings tabs.
3
Click Convert All — WebP Forge processes every image in your browser. A progress bar shows real-time status.
4
Download — Download each WebP file individually or click Download ZIP to get everything in one archive.

FAQ

Frequently Asked Questions

Is this completely free?

Yes. SF Tools WebP Converter is 100% free with no limits, no watermarks, and no account required.

Are my images uploaded to a server?

No. All conversion happens entirely in your browser using JavaScript and the HTML5 Canvas API. Your files are never sent to any server.

How many images can I convert at once?

There is no limit. You can drop hundreds of images at once. The only practical limit is your device's available RAM.

What is the difference between Lossy and Lossless?

Lossy WebP reduces file size by discarding some image data — ideal for photos. Lossless WebP preserves every pixel exactly — best for logos, icons or screenshots.

What quality setting should I use?

For most web images and photos, quality 80–85 provides an excellent balance. For product images try 88–92. For thumbnails, 70–75 is usually fine.

Does WebP work in all browsers?

Yes. WebP is supported in Chrome, Firefox, Safari (14+), Edge and Opera — covering over 97% of global web users.