Free Online Image Compressor
Compress JPG, PNG and WebP images online without uploading them. Reduce file size quickly with no signup, daily limit or watermark.
Compress Your Images
Drop your images here
or choose files from your device
JPG, PNG, WebP • Multiple files supported
Resizing scales the image down proportionally (aspect ratio is always kept) — it never stretches or crops. This is the biggest lever for smaller file size on large photos.
How to Compress an Image
- Upload your image(s). Drag and drop or click to choose JPG, PNG or WebP files.
- Pick a preset or adjust quality and resize. Balanced works well for most photos; High compression saves more space.
- Click "Compress Images." Original vs. compressed size and percentage saved appear once processing finishes.
- Download. Save one file or download all compressed images at once.
Why Use This Image Compressor?
Runs in your browser
Compression happens on your device using the Canvas API — your images are never uploaded anywhere.
Optional resizing
Scale large images down to a max width/height while keeping the exact aspect ratio — never stretched or cropped.
Multiple files at once
Upload several images together, and compress and download them in a batch.
Format-aware compression
JPG and WebP use a quality slider for strong size reduction; PNG stays lossless with size-focused re-encoding.
No signup, no watermark
Compress as many images as you like, completely free, without creating an account.
Compress JPG, PNG and WebP Images Online
Image compression reduces file size by re-encoding pixel data more efficiently. For JPG and WebP, lowering the quality setting discards some visual detail that is hard for the eye to notice at normal viewing sizes, resulting in a much smaller file. PNG uses lossless compression by design, so its size mainly depends on image complexity and dimensions rather than a quality slider.
A good starting point is the Balanced preset, which targets noticeably smaller files with minimal visible quality loss. If you're preparing images for web pages or emails where file size matters most, High compression squeezes out more space at the cost of some sharpness — useful for thumbnails or background images that don't need to be pixel-perfect.
Smaller images load faster on websites, take less space in email attachments and are easier to share through messaging apps. This online image compressor keeps the process private by working locally in your browser instead of sending files to a server.
JPG compressor
Best suited to photographs. Adjusting JPG quality can produce a substantial size reduction while keeping the image clear.
PNG compressor
Useful for logos, screenshots and transparent graphics. PNG is lossless, so dimensions and image complexity affect size most.
WebP compressor
A modern choice for web images that supports adjustable quality and often creates compact files with good visual detail.
Frequently Asked Questions
Is this image compressor free?
Yes, compressing images here is completely free with no limit on the number of files.
Are my images uploaded to a server?
No. Compression happens using your browser's Canvas API, so your images never leave your device.
Which formats are supported?
You can compress JPG, PNG and WebP images. The output keeps the same format as the file you uploaded.
Will compression reduce image quality?
Some quality is traded for smaller file size. The Balanced preset aims for a size reduction that is hard to notice visually; Strong compression saves more space but is more visible.
Can I compress multiple images at once?
Yes, you can upload several images together and download them individually or all at once.
How much can an image file size be reduced?
The reduction depends on the image format, dimensions and selected quality. Large JPG and WebP photos often shrink substantially, while already optimized images may change less.
Does this image compressor work on mobile phones?
Yes. The compressor works in modern mobile and desktop browsers without installing an app.
Does PNG compression work the same as JPG?
PNG is lossless by design, so this tool reduces PNG size mainly through re-encoding and optional resizing rather than a quality slider having a large effect. JPG and WebP support a quality slider for stronger size reduction.