Compress JPG images online for free. Whether you're emailing photos, uploading to a website, or storing images, a smaller JPG saves time and bandwidth.
This tool runs entirely in your browser, so your images never leave your device.
How to use this tool
Add your JPG
Drag and drop your JPG onto the tool or choose a file.
Set the quality
JPG is pre-selected. 70–80% quality removes most visible artifacts while cutting file size significantly.
Compare and download
Preview the result, then download your compressed JPG.
What you are actually trading away
A JPEG has already been compressed once. Compressing it again re-encodes an image that has already lost detail, so the artefacts compound: what looked clean at quality 85 will look noticeably softer after a second pass at 70. Each additional pass costs more than the last.
This is why the quality slider on a re-compression tool behaves differently from the one in a camera or an editor. In an editor you are encoding from original data. Here you are encoding a copy of a copy.
Choosing a quality setting
| Setting | Typical use | What it costs |
|---|---|---|
| 85–95 | Archive, print preparation, images that will be edited again | Barely any saving; near-original size |
| 70–85 | Web delivery, hero images, photographs viewed on screen | Slight softening, generally invisible at normal size |
| 50–70 | Thumbnails, previews, email attachments | Visible artefacts on close inspection |
| Below 50 | Only when size is the overriding constraint | Blocking and banding that most people will notice |
Getting a better result
- Compress once, from the original, rather than repeatedly from the JPEG.
- Resize before compressing — fewer pixels always beats a harder encoder setting.
- Keep the original file. Re-compression is one-way.
- If you will compress again later, start from the original then too.
Frequently asked questions
How much can I compress a JPG?
Typical savings are 30–70% depending on the source image and the quality level you choose.
Does compressing JPG reduce quality?
JPG compression is lossy, but at quality 70–80 the difference is usually invisible for web use.
Are there any limits?
No limits, no account, no watermark. Compress as many images as you like.