Stillmore

Free Image Format Converter

Select your images and a supported output format, then download each converted file.

Drop images hereor browse files

Your downloads will be listed here after export.

An overhead fashion shot, converted to WebP

Start with the original JPEG and convert it to WebP. Zoom in on the accessories against the pavement to check the fine detail.

Source JPEG
Source JPEG
Converted WebP
An overhead fashion shot, converted to WebP

How to convert a set of images

  1. Select the source files

    Choose one or more images that your browser can open.

  2. Pick the destination format

    Choose the type your next editor accepts. Start with PNG for line art or a transparent graphic, or JPEG for an opaque photo.

  3. Download each result

    Convert the batch, compare reported file sizes and save the files using their individual download links.

Choose a file type for the next handoff

A product shot, a transparent symbol and a web photo make different demands on the output format.

Deliver photos to a listing editor

Convert your shots to the format specified by the listing form and confirm that one export opens before sending the set.

Pass a transparent mark to a designer

Choose PNG for a logo that needs clear edges when placed over a coloured background.

Prepare web images

Try WebP on a photograph, compare it with your original at display size and check that your publishing system accepts it.

Supply a review copy

Create a JPEG that colleagues can open in their usual photo viewer. Retain the source for future edits.

Image format converter FAQ

Which format should I use for a graphic with a transparent background?

PNG preserves transparency. JPEG suits photographs over an opaque background. Check the exported file type and open one result before converting the rest of a batch.

Does conversion change the width or height?

Each output uses the source image’s pixel dimensions. Use the social image resizer for a different frame.

Why did the background turn white in my JPEG?

The converter lays JPEG images over white before encoding them. Select PNG to retain transparent areas.

Why is AVIF unavailable in my browser?

Reading and writing AVIF require different browser features. If the browser cannot encode your selected type, choose another output format.

Can I convert a folder of product shots in one pass?

Select several image files together, choose one output format and run the conversion. Each image gets its own download link.

How are the converted images named?

The tool keeps the original base name and replaces the extension with the selected format. A JPEG called look-01.jpg becomes look-01.webp when you choose WebP.

Which control should I adjust to make a JPEG smaller?

Lower the quality setting and convert again. If you have a specific file-size ceiling, use the image compressor to set the target in KB.