Reduce the file size of your images without losing visible quality. Upload your images, choose a compression level, and download smaller files — free and private, right in your browser.
Modern phone cameras take wonderful photos — and enormous files. A single photo can be 5 MB or more, which makes it slow to send, hard to attach to a form, and heavy on a website. Image compression shrinks the file by removing data your eye barely notices, so the picture still looks the same while the file becomes a fraction of its size. It is the simplest fix for slow pages, full inboxes and upload limits.
Image Compressor
Reduce image file size. The original and compressed sizes are shown so you can see the saving.
🔒 Privacy: this tool runs entirely in your browser. Your files and text never leave your device — nothing is uploaded to any server.
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What is Image Compressor?
Image Compressor is a free online tool that reduces the file size of your images. You upload one or more images, choose a compression level, and download the smaller files. The pictures keep their dimensions and their visible quality — only the file size shrinks.
The tool runs entirely in your browser. Your images are processed on your own device and are never uploaded to a server, so your photos stay private. It works on Windows, Mac, Chromebook, Android and iPhone — anything with a modern web browser.
What you can use it for
- Faster websites: smaller images load faster, which keeps visitors on your pages and helps your site in search results.
- Email and forms: shrink photos so they fit attachment limits and upload forms that cap file sizes.
- Social media: prepare photos for posting without long upload times on a slow connection.
- Freeing up space: keep smaller copies of photos you need to store or share, instead of the full-size originals.
- Documents and PDFs: compress images before turning them into a PDF, so the finished document stays a sensible size.
How it works
Upload your images, choose a compression level, and download the smaller files — free and private, right in your browser. Your images are never uploaded to a server.
- Choose the image files you want to compress, or drag them into the tool.
- Pick a compression level — a higher level means a smaller file.
- Wait a moment while the images are compressed in your browser.
- Download the smaller files and compare the size with the originals.
Frequently asked questions
Is Image Compressor free?
Yes, it is completely free to use, with no account or sign-up needed. There is no watermark added to your images.
Are my images uploaded anywhere?
No. Compression happens in your browser, on your own device, so your images are never uploaded to a server or stored by us. Closing the page removes them from your browser session.
Will compression make my images look worse?
At normal compression levels, the difference is very hard to see — that is the point of the tool. Very high compression can soften fine detail, so if quality matters most, use a lighter level and compare the result with the original before you use it.
Which formats can I compress?
The tool works with common image formats such as JPG, PNG and WebP. If you need a different format, convert the image first — for example, use JPG to WebP for modern WebP files, or WebP to JPG the other way round.
Good to know
- Keep your original files. Compression removes data, so always work on a copy and keep the full-size original somewhere safe.
- For photos, a medium compression level usually gives the best balance of size and quality.
- If an image also needs to be a different size, compress it after resizing with the Image Resizer — resizing first gives the compressor less work to do.
Related tools
Try the Image Resizer, Image Cropper or JPG to WebP tools, or browse all free tools on VerySimple.