Convert multiple images at once between JPG, PNG and WebP, then download them all as a ZIP
Free, runs entirely in your browser — no sign-up, no file upload to a server.
What does the Universal Image Converter do?
It converts multiple images at once between JPG, PNG, and WebP, then packages all the converted files into a single ZIP download.
How many images can I convert at once?
There's no fixed limit enforced by the tool — it processes as many as you drop in, one by one, with per-file error handling so one bad file doesn't stop the rest. Very large batches simply take longer since everything runs in your browser.
Which formats are supported?
Input accepts any image your browser can decode. Output format choices are JPG, PNG, and WebP.
Where are my images processed?
Entirely in your browser — nothing is uploaded to a server, including during ZIP creation.
What happens if one image in my batch fails to convert?
That file is reported as failed while the rest of the batch still converts and downloads normally — a single bad file won't stop the whole job.
How do I report a problem or request a feature for this tool?
Use the Contact / Feedback page — select "Universal Image Converter" as the related tool so we know exactly which tool you mean, then describe the bug or the feature you'd like to see.