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JPG Converter
Convert PNG, BMP, GIF, WebP and other formats to JPEG, or JPEG to them.
An upload form asks for a JPEG and your file is a screenshot, a WebP export, or an old BMP nobody has opened in a decade. This tool exists for that moment: get any common image format into JPEG, or take a JPEG somewhere else, without opening a full image editor for a one-off conversion.
JPEG is old, and that is exactly why it is everywhere
The JPEG standard was finalised in 1992 by the Joint Photographic Experts Group, which is where the name comes from. More than three decades later it remains the default format nearly every camera, phone and website falls back to, because virtually every piece of software ever written can open one. That universal compatibility, not any technical superiority, is JPEG’s real advantage today.
What it trades for that compatibility is transparency and lossless editing. JPEG has no alpha channel at all, so any converted image with a see-through background gets a solid fill, usually white. And every time a JPEG is re-saved, it loses a little more detail, which is why it is a poor choice as a working file you edit repeatedly.
Converting into or out of JPEG
- Upload the source file — PNG, BMP, GIF, WebP and other common formats are all accepted as input.
- Choose JPEG as your output, or pick a different target if you are converting a JPEG elsewhere.
- Set the quality level if you are encoding to JPEG; this only applies going in, since there is nothing left to tune once the file already exists as something else.
- Convert and check the file size against the original.
- Download the result.
What the quality setting is actually doing
| Quality | What you get | Best for |
|---|---|---|
| 95–100 | Minimal visible loss, largest file | Archival copies, print |
| 80–90 | Visually near-identical, much smaller | Everyday web and email use |
| 60–75 | Noticeable softness on close inspection | Thumbnails, tight size limits |
| Below 50 | Visible blocky artefacts | Rarely worth it — try resizing instead |
JPG converter questions
What is the difference between quality 100 and quality 80?
At 100 the encoder discards almost nothing beyond what JPEG always throws away by design; at 80 it compresses more aggressively for a noticeably smaller file. On most photos the visual gap between 80 and 100 is small, while the file-size gap is large.
Can I convert a JPEG with transparency into something that keeps it?
Not from the JPEG itself, since it never had transparency in the first place to preserve; anything transparent in the original source was already filled in with a solid colour before it became a JPEG. Keep a PNG or WebP master file if you need transparency later.
Why does converting the same source to JPEG twice give different file sizes?
Because a different quality setting, or a different encoder, produced a different result. Unlike a lossless format, JPEG output size depends on both the image content and the chosen quality level, not on the content alone.
Does converting a PNG to JPEG and back to PNG restore the original?
No. The trip through JPEG discarded detail permanently at the point of conversion, and turning the result back into a PNG simply locks in that loss rather than undoing it.
Is my file uploaded when converting to JPG?
Yes, the file is sent to the server for conversion and is not retained afterwards, as outlined in our privacy policy.
