Skip to content
Primax Tools

Free Image Format Converter

Convert images between JPG, PNG and WebP in your browser, with full control over how transparency is handled.

Runs entirely in your browser. Nothing is uploaded.

Drop an image to convert

JPG, PNG or WebP · up to 40 MB

Step by step

How to use the Image Format Converter

  1. 1

    Upload a JPG, PNG or WebP image. The detected source format is shown.

  2. 2

    Choose the target format: JPG, PNG or WebP.

  3. 3

    When converting to JPG, choose a background color for any transparent areas.

  4. 4

    Adjust quality for JPG or WebP if you like.

  5. 5

    Download the converted file.

What it does well

All six common conversions

JPG to PNG, PNG to JPG, JPG to WebP, PNG to WebP, WebP to JPG and WebP to PNG.

Transparency background

Pick any fill color, like white for documents or a brand color for slides, when flattening to JPG.

Feature detection

If your browser cannot encode a format such as WebP, the option is disabled and explained rather than silently producing PNG.

Content-based checks

Files are identified by their bytes, so a renamed file with the wrong extension is detected.

Who uses it

Office workers
Turn WebP images saved from the web into JPG files that older software can open.
Designers
Convert flattened JPG artwork to PNG for lossless editing, or export WebP for the web.
Web developers
Produce WebP versions of PNG assets to cut page weight.

Understanding JPG, PNG and WebP

JPG (also written JPEG) is a lossy format designed for photographs. It does not support transparency. PNG is lossless and supports full alpha transparency, making it ideal for logos, screenshots and graphics with sharp edges, but photographs saved as PNG are large. WebP is a newer format from the same family of web standards that supports both lossy and lossless compression plus transparency, usually at noticeably smaller sizes.

Converting from a lossy format to a lossless one does not restore detail that was already discarded; it simply stops further loss. Converting a transparent PNG or WebP to JPG requires choosing what color appears behind the transparent pixels. Many converters quietly use black; here you choose explicitly.

Browser support

Decoding all three formats is supported in current versions of Chrome, Edge, Firefox and Safari. Encoding WebP is supported by Chrome, Edge and Firefox, while some Safari versions cannot export WebP from a canvas. The converter tests your browser on load and only offers formats that will genuinely be produced.

Frequently asked questions

Can I convert HEIC or GIF files?

This converter focuses on JPG, PNG and WebP. Other formats are rejected with a clear message rather than producing an unreliable result.

Why did my transparent logo get a white background?

JPG cannot store transparency. Choose PNG or WebP as the target to keep it, or pick a different fill color.

Is there a file size limit?

Files up to 40 MB are accepted. Larger images can exhaust memory on mobile devices.

Related tools

Image Compressor

Shrink JPG, PNG and WebP files with a live quality control and honest size comparison.

Image

Image Resizer

Set exact pixel dimensions or scale by percentage with a lockable aspect ratio.

Image

Image to PDF Converter

Turn JPG, PNG and WebP images into a PDF with page size, orientation and margins.

PDF