Convert images
Convert JPG, PNG, WebP, AVIF, HEIC, GIF or BMP to the format you need in seconds – including whole batches of images at once. Everything runs entirely in your browser: no image is uploaded and no server ever sees your files.
Drop images here
JPG, PNG, WebP, AVIF, HEIC, GIF, BMP, SVG · up to 50 files · 100% on your device
How it works
- 1
Select your images
Drag one or more images into the box above or pick them via the button. JPG, PNG, WebP, AVIF, HEIC, GIF and BMP are supported.
- 2
Choose format & quality
Pick JPG, PNG, WebP or AVIF as the target format and a quality preset: “Best quality”, “Balanced” or “Smallest file”. Under “Advanced” you can fine-tune quality with a slider and see a live estimate of the resulting file size.
- 3
Convert & download
Start the conversion – every image is processed with its own progress indicator. Download the results individually or all at once as a ZIP archive.
Your benefits
Your images stay on your device
The entire conversion runs locally in your browser. A strict Content Security Policy technically blocks any transfer to a server – you can verify this yourself in your browser's network tab at any time.
GDPR-compliant with zero paperwork
Since no file leaves your device, there is no data processing by third parties, no data processing agreement to sign and nothing for your IT department to review. Product photos, ID scans or documents containing personal data are all safe to convert.
Free, unlimited, batch-ready
No sign-up, no watermarks, no daily limits. Convert entire image collections in one go – and because nothing is uploaded, even large files finish quickly.
Frequently asked questions
Are my images uploaded to a server?
No. Conversion happens entirely locally in your browser using JavaScript and WebAssembly. Your images never leave your device at any point.
Which image formats can I convert?
Supported input formats are JPG, PNG, WebP, AVIF, HEIC, GIF and BMP. You can convert them to JPG, PNG, WebP or AVIF.
Which quality preset should I choose?
“Balanced” is the right choice for most purposes and delivers good quality at a much smaller file size. Choose “Best quality” for print and archiving, or “Smallest file” for email attachments and uploads with size limits. Under “Advanced” you can fine-tune the quality with a slider and instantly see the estimated file size.
Can I convert multiple images at once?
Yes. You can convert many images in a single batch – each file shows its own progress. Download the finished images individually or conveniently as one ZIP archive.
Is it safe to convert confidential or company images?
Yes, without hesitation. Because all processing happens on your own device, neither we nor any third party can see your files – suitable even for ID copies, contract scans or unpublished visual material.
Is this image converter really free?
Yes, the tool is completely free – no sign-up, no watermarks and no hidden limits on file count or size.