Which format should I choose?

JPEG for photographs, PNG for screenshots, logos and anything needing transparency, and WebP when you want the smallest file and only modern browsers have to read it.

What happens to transparency when I convert to JPEG?

JPEG has no alpha channel, so transparent areas are filled with white rather than turning black. If you need transparency, use PNG or WebP.

Does converting PNG to JPEG lose quality?

Yes. PNG is lossless and JPEG is not, so the conversion discards detail. Going the other way, JPEG to PNG, adds no quality back — it simply stops any further loss.

Can my browser write WebP?

Chrome, Edge and current Firefox can. Older Safari cannot, and the page tells you rather than handing over a file with the wrong contents.

Convert Image

Change an image between JPEG, PNG and WebP. The conversion happens in your browser, so nothing is uploaded and there is no queue to wait in.

Drop an image here

or click to browse

JPEG, PNG, WebP, GIF, BMP • Max 30MB

Which format for what

JPEG — Photographs. Lossy, no transparency, understood by everything ever made.
PNG — Screenshots, logos, diagrams, anything with flat colour or transparency. Lossless, larger.
WebP — Both jobs at once, typically 25–35% smaller than the equivalent JPEG or PNG. Every current browser displays it; some older desktop software still does not.

Conversions that cost you something

PNG to JPEG discards detail permanently, because JPEG is lossy. For a photograph that is fine and the saving is large. For a screenshot of text it is the wrong move — the edges smear, and the file often grows rather than shrinks.

JPEG to PNG adds nothing back. The detail the JPEG threw away is gone; PNG simply stops any further loss. It is worth doing before editing, not for storage.

Anything to JPEG loses transparency. There is no alpha channel in JPEG, so transparent pixels have to become something — here, white.

Why the browser and not a server

Image decoding and encoding are built into every browser. Sending a file to a server to do work the machine can already do adds an upload, a wait and a copy of your image on someone else's disk. This page keeps all three out of the way — and it works offline.

Frequently asked questions

Does it keep my EXIF data?

No. Converting redraws the image, and metadata does not survive. That is usually welcome — see Remove EXIF if it is the reason you came.

Can it convert HEIC from an iPhone?

Only where the browser can decode HEIC, which in practice means Safari. Elsewhere, export as JPEG on the phone first.

Is there a file limit?

30MB, and it is about memory rather than policy — very large images can exhaust the tab.

Related tools

Compress image — control size with a quality slider
Resize image — change the dimensions
EXIF viewer — inspect metadata before converting
Convert audio format — the same idea for sound