What is the ArrayKit image converter?

It is a browser-based tool that re-encodes pictures between PNG, JPEG and WebP. Load a PNG, JPG, WebP, GIF or BMP, pick an output format, optionally set a quality level, and download the converted image.

How do I convert a PNG to WebP?

Drop your PNG into the image converter, choose WebP under Convert to, set a quality level, and click Download to save the WebP version.

Does converting to JPEG keep transparent backgrounds?

No. JPEG does not support transparency, so transparent pixels are filled with white. Pick PNG or WebP to preserve the alpha channel.

What does the quality slider do?

For JPEG and WebP it controls compression from 10% to 100%, letting you trade file size for image detail. PNG is lossless and ignores the slider.

Why is my converted image not smaller than the original?

Output size depends on the format and quality you pick. Converting a JPEG photo to PNG can grow it, while WebP or a lower JPEG quality usually shrinks it. Watch the live size comparison to compare results.

Are my images uploaded anywhere when I use the image converter?

No. The converter uses your browser's canvas to process images locally, so your files stay on your device and nothing is uploaded to a server.

Image Format Converter

Convert images between PNG, JPEG and WebP entirely in your browser.

Images are decoded and converted locally in your browser using the canvas API, so your files stay on your device and nothing is uploaded.

Want smaller files without changing format? Try the Image Optimizer.

About Image Format Converter

This image converter changes pictures between PNG, JPEG and WebP right inside your browser. Drop in a PNG, JPG, WebP, GIF or BMP file, pick a target format, and download the result in a click. A quality slider lets you trade file size against fidelity for lossy formats like JPEG and WebP, and a live size readout shows how much smaller the output is. It is handy for developers shrinking assets with png to webp conversion, designers exporting jpg copies for clients, and anyone who needs a quick webp converter without installing software. Conversion happens locally using your browser's canvas, so your images are processed on your device and nothing is uploaded to a server.

Features

Converts images to PNG, JPEG or WebP from a single picker
Accepts PNG, JPG, WebP, GIF and BMP source files
Quality slider from 10% to 100% for JPEG and WebP output
Live size comparison showing the percent reduction versus the original
Instant preview of the converted image before you download
Flattens transparency onto a white background when exporting JPEG
Drag-and-drop or click-to-browse file loading
Downloads with the correct extension matching the chosen format

How to use the Image Format Converter

Click the drop zone or drag an image (PNG, JPG, WebP, GIF or BMP) onto it.
Use the Convert to control to choose PNG, JPEG or WebP.
For JPEG or WebP, drag the Quality slider to balance size and detail.
Check the preview and the size comparison panel.
Click Download to save the converted image to your device.

Example

Input

logo.png  (PNG, 142 KB, transparent background)

Output

logo.webp  (WebP at 90% quality, 38 KB, 73% smaller)

Converting a PNG to WebP at 90% quality typically cuts file size dramatically while keeping detail.

Common errors & troubleshooting

Transparency disappears and turns white after converting to JPEG. — JPEG has no alpha channel, so transparent areas are flattened onto a white background. Choose PNG or WebP if you need to keep transparency.
The WebP or JPEG output looks blocky or blurry. — Raise the Quality slider toward 100%. Lower quality values compress harder and add visible artifacts.
"Could not decode that image" appears after loading a file. — The file may be corrupt or in a format your browser cannot decode. Re-export it or try a standard PNG, JPG or WebP source.
Converting to PNG did not shrink the file as expected. — PNG is lossless and has no quality slider, so photos often stay large. Use JPEG or WebP for smaller photographic output.

Frequently asked questions

What is the ArrayKit image converter?: It is a browser-based tool that re-encodes pictures between PNG, JPEG and WebP. Load a PNG, JPG, WebP, GIF or BMP, pick an output format, optionally set a quality level, and download the converted image.
How do I convert a PNG to WebP?: Drop your PNG into the image converter, choose WebP under Convert to, set a quality level, and click Download to save the WebP version.
Does converting to JPEG keep transparent backgrounds?: No. JPEG does not support transparency, so transparent pixels are filled with white. Pick PNG or WebP to preserve the alpha channel.
What does the quality slider do?: For JPEG and WebP it controls compression from 10% to 100%, letting you trade file size for image detail. PNG is lossless and ignores the slider.
Why is my converted image not smaller than the original?: Output size depends on the format and quality you pick. Converting a JPEG photo to PNG can grow it, while WebP or a lower JPEG quality usually shrinks it. Watch the live size comparison to compare results.
Are my images uploaded anywhere when I use the image converter?: No. The converter uses your browser's canvas to process images locally, so your files stay on your device and nothing is uploaded to a server.

Related tools

Image Optimizer — Re-encode and shrink images (JPEG/WebP/PNG), optionally resizing.
SVG Optimizer — Minify SVG — strip comments, metadata and editor cruft, and collapse whitespace.
EXIF Viewer & Remover — View and strip EXIF metadata (including GPS) from photos — nothing is uploaded.
Image to PDF — Combine images into a single PDF (auto / portrait / landscape).
PDF to Images — Render PDF pages to PNG or JPG images you can download.
Base64 Encode / Decode — UTF-8 safe Base64 encoding and decoding.
QR Code Generator — Generate a QR code from text or a URL; download as PNG or SVG.