Local · Private · Free

Image Converter

Convert between PNG, JPG, WebP and more with a quality slider. Everything runs on your machine: nothing is uploaded.

Drop images here
or click to browse, PNG, JPG, WebP, GIF, BMP

Files never leave your browser

Convert to

Quality, 90% Only affects JPG & WebP.

Background (for transparency) JPG has no transparency, flattened onto this colour.

Convert images without the upload

Other "free" converters push your images to a server first. Digital Heroes decodes and re-encodes everything locally with your device's canvas, instant, fully private, and offline-ready. Single & multi-file conversion and one-click ZIP export of the whole batch are all completely free.

About Image Converter

Image Converter is a free, private image tool that runs entirely in your browser. Convert between PNG, JPG, WebP and more without sending a single file to any server. Because everything happens locally on your device, there is no sign-up, no installation and no usage limits. It keeps working offline once the page has loaded. Like every free tool by Digital Heroes, it is 100% free with no restrictions.

What you can do

Convert PNG to JPG (or WebP, or back) in one click, on any number of files at once.

Adjust output quality with a live slider for JPG and WebP to balance file size and sharpness.

Flatten transparency when converting to JPG by choosing a white or black background fill.

Preview every converted image in a thumbnail grid with before/after file-size figures.

Download individually with a per-image button, or grab the whole batch as a single ZIP.

Work fully offline and privately: no upload, no account, no size limits.

How to use Image Converter

Open Image Converter. It runs entirely in your browser with no sign-up.

Drop your images onto the zone, or click to browse. PNG, JPG, WebP, GIF and BMP are all supported.

Choose your output format (PNG, JPG or WebP) and set the quality slider if needed.

Pick an individual download button under any thumbnail, or click Download all (.zip) for the full batch.

Frequently asked questions

Is Image Converter free?

Yes. Image Converter is completely free for everyone: no sign-up, no account and no usage limits.

Is it private? Are my files uploaded anywhere?

No. Image Converter runs entirely in your browser on your own device, so your data never leaves your computer and nothing is uploaded to a server.

Does it work offline?

Yes. This tool is a Progressive Web App. Once the page has loaded it keeps working offline, and you can install it as an app from your browser.

Do I need to install anything or create an account?

No. Just open the page and start using it. Installing it as an app is optional and only adds offline convenience.

What does Image Converter do?

It converts images between PNG, JPG and WebP formats, with a quality slider for lossy formats, right in the browser. No upload required.