Click or drag image here
JPG, PNG, WebP supported · Max recommended 25MB
Reduce image file size by adjusting JPEG quality while previewing the result.
Click or drag image here
JPG, PNG, WebP supported · Max recommended 25MB
Our free image compressor reduces your photo file size without visible quality loss. Compress JPG, PNG and GIF files instantly in your browser. Whether you need to shrink photos for a website, reduce attachment sizes for email, or meet upload limits for online forms, our tool makes it simple.
Large photo files slow down websites, fill up phone storage, and make emails bounce back when attachment limits are exceeded — yet reducing file size with a desktop program usually means installing software, learning where the quality slider actually lives, and exporting the file all over again if the result still looks too compressed. This compressor solves that by giving you a single, browser-based control that reduces file size while keeping the image visually close to the original, so you can shrink a multi-megabyte camera photo down to a fraction of its size before uploading it to a website, attaching it to an email, or storing dozens of photos on a device with limited space.
This is particularly useful when you're managing a photo gallery, preparing images for a portfolio website, or simply trying to free up storage space on a phone that's running low. Rather than compressing each photo through trial and error in a desktop app and hoping the result looks acceptable, you get an instant before-and-after size comparison right in the browser, so you can judge the trade-off between smaller file size and visual quality before committing to a download. Because the compression only affects how the pixel data is encoded and not the pixel dimensions themselves, a compressed photo still displays at full size on any screen — it simply takes up less disk space and loads faster over a slow connection.
Compression here works by re-encoding your photo using JPEG's lossy compression algorithm at a quality level you control, rather than simply resizing the pixel dimensions. Internally, the tool draws your image onto a canvas and then asks the browser to export that canvas as a JPEG file at a specified quality percentage — lower percentages discard more of the fine color detail that the human eye is least likely to notice, which is what allows the file size to shrink dramatically while the photo still looks sharp at normal viewing sizes. Because JPEG compression targets subtle color and brightness variations rather than the overall shape of your subject, most everyday photos can be compressed by 60-80% in file size with very little visible difference, especially when viewed on a phone or web page rather than zoomed in at full resolution. All of this quality analysis and re-encoding happens directly on your device's processor through the browser's canvas API, so there's no upload delay and no server-side processing queue to wait behind.
JPG photos can often be compressed to 20-30% of their original size with minimal visible difference.
No. Our compressor reduces file size only — the pixel dimensions stay the same.
We recommend files up to 25MB.
Yes. PNG output preserves transparency.
Use our Resize to KB tool which lets you set an exact target file size.
At moderate settings, most compression is invisible to the eye. Very aggressive compression can introduce visible blockiness in fine detail.
JPG generally compresses photos far smaller than PNG. PNG suits graphics, logos, and images needing transparency.
No. Compression happens directly in your browser using JavaScript — your image never leaves your device.
Yes, this tool handles both resizing dimensions and compressing file size in the same workflow, so you don't need a separate photo resizer and compressor for each step - adjust the quality slider to shrink file size while keeping the resolution you set.