Shrink JPG, PNG, WebP and AVIF images without a noticeable quality drop — entirely in your browser. Nothing is ever uploaded to a server.
What is the Image Compressor?
The Image Compressor reduces the file size of your photos and graphics while keeping them looking sharp. It reads the image into memory, re-encodes it with a smarter, more efficient compression algorithm, and lets you compare the result against the original with a draggable before/after slider — all without leaving the page. Because everything runs locally in your browser, nothing is ever uploaded to a server, which makes it safe for private photos and fast even on a slow connection. Smaller images mean faster page loads, lower storage use, and quicker uploads to email, social media or a CMS. Use the quality slider to find the sweet spot between file size and visual fidelity, or switch to bulk mode to compress up to 50 images at once and download every result together as a single ZIP file. Need a specific file size instead — for an email attachment limit, a form upload cap, or a website's image guidelines? Switch to "By Target Size" mode and the tool will iterate quality and dimensions automatically to land as close as possible to the size you enter.
Compress to a Specific Size
Jump straight to a preset target and the target-size field will already be filled in:
How to Use the Image Compressor
- Drag and drop a JPG, PNG, WebP or AVIF image (or several, in bulk mode) into the upload area.
- Adjust the quality slider — lower values shrink the file more but reduce visual quality.
- Click Compress and let the tool process your image entirely in your browser.
- Drag the before/after slider to compare the original and compressed versions side by side.
- Check the size saved badge, then download the compressed image — or download all as a ZIP in bulk mode.
