Upload images
Drop JPEG, PNG, or WebP files here, or click to choose
Multiple files supported - everything stays in your browser
Image Compressor
Free Image Compressor Online
An image compressor reduces the file size of JPEG, PNG, and WebP images while preserving visual quality. Compress images online, free, in your browser - no upload required.
Drop in dozens of files at once, fine-tune the quality and output format, and download single images or the whole batch as a ZIP. Everything runs locally - your images never leave the page.
100% browser-based - no uploads, no tracking
How to compress images
1
Upload your images
Drag and drop one or more JPEG, PNG, or WebP files onto the drop zone, or click to pick files. You can compress dozens of images in a single batch.
2
Pick the quality
Move the quality slider between 1 and 100. A value around 75 balances size and visual quality for most photos. Lower values produce smaller files; higher values preserve more detail.
3
Choose the output format
Keep the original format, or convert everything to JPEG, PNG, or WebP. Converting PNG screenshots to WebP usually delivers the largest savings.
4
Set an optional max width
Resize wide images down to a maximum width while compressing. Great for blog images, thumbnails, and email-friendly assets.
5
Download single files or a ZIP
Download each compressed file individually, or grab them all together as a ZIP. Original size, new size, and percentage saved are shown for every file.
Frequently Asked Questions
How much can I compress an image?
Most JPEG and PNG images can be compressed by 50% to 80% with little or no visible quality loss, depending on the image content and the quality level you choose. Photos compress well at quality 75-85, while graphics and screenshots often hold up at lower settings. Use the side-by-side preview to find the best balance for each file.
Is it safe to use an online image compressor?
Yes - this image compressor is completely safe because it never sends your files anywhere. All compression happens locally in your browser using the Canvas API. Your photos, screenshots, and product images stay on your device, which makes the tool safe for proprietary, personal, or sensitive content.
Will my images lose quality?
JPEG and WebP are lossy formats, so some quality is discarded during compression. The quality slider lets you choose how much - 90+ is visually lossless for most photos, 75 is a good default, and 50-60 produces small files for thumbnails or previews. PNG output is lossless when you keep the format, but switching a PNG to JPEG or WebP can shrink it dramatically.
What image formats are supported?
The compressor accepts JPEG (.jpg, .jpeg), PNG (.png), and WebP (.webp) input. You can keep the original format on output or convert to any of the three. Converting modern PNG screenshots to WebP often cuts file size by 70% or more without visible quality loss.
Are my images uploaded to a server?
No - 100% of the compression runs in your browser. Images are decoded into a canvas, re-encoded with the quality and format you choose, and offered for download as a blob. No file data ever leaves the page, no analytics or tracking are attached to the files, and the tool works offline once loaded.