About Simple Image Converter
Last updated:
Who runs it
Simple Image Converter is built and maintained by Pedro Rodrigues, an independent developer in Portugal. It is a one-person project: the same person writes the code, tests every conversion, keeps the pages up to date and answers the emails. There is no company behind it and no team selling a premium version.
Why I built it
Converting an image should take seconds, yet most online converters ask you to upload your file, wait in a queue, create an account or install an app first. I wanted a tool that does one job — turning aPNG, JPG or WebP image into another format, or making it smaller — and gets out of the way.
How it works
Everything happens in your browser. When you choose an image, your browser decodes it, draws it onto an invisible canvas and saves the canvas again in the format you picked, using the Canvas API that every modern browser includes. Your file is never uploaded, so nothing is stored on a server and there is nothing to wait for — converting locally is often quicker than uploading, especially for large photos on a slow connection. Once the page has loaded, conversions even keep working if your connection drops. The privacy policy explains the analytics and advertising cookies the site itself uses.
Limitations
- Only PNG, JPG and WebP are supported, for both input and output.
- Images are converted one at a time; there is no batch mode yet.
- Embedded metadata — camera details, GPS location and colour profiles — is removed, which is handy for privacy.
- Transparent areas become white when you convert to JPG, because JPG has no transparency.
- An animated WebP becomes a still image of its first frame.
- Very large images can fail on phones or older devices, which have less memory for the canvas.
- Creating WebP files depends on your browser; where it isn't supported, the option is switched off.
- Re-saving a PNG as PNG does not always make it smaller: a screenshot we tested went 78 KB → 113 KB (1.4× larger).
Contact
Found a bug, or an image that won't convert? Email support@simpleimageconverter.com and I'll usually reply within a few days. The terms of use cover how the site may be used.
Not sure which format to pick? Read the PNG vs JPG vs WebP guide.