How to compress an image (in 3 steps)
- Open the compressor — click here and drop in one or many images.
- Pick a quality — lower quality means a smaller file. 60–80% is usually perfect for the web.
- Download — grab each file or download all at once. Your originals never leave your device.
Why compress images at all?
Large images are the #1 cause of slow websites. Compressing them improves page speed, SEO rankings, and conversion rates — and saves bandwidth for everyone. Smaller files also fit email attachments and app uploads that have size limits.
Why a browser-based compressor?
Most online compressors upload your image to a server, process it there, and send it back. That means upload time, privacy exposure, and often a per-image limit. Lumiveil compresses locally using your browser's built-in image codecs, so it's instant, private and unlimited.
FAQ
Is it really free with no limits? Yes — compress as many images as you like, no account, no watermark.
Will my photo look worse? At sensible quality settings, the difference is invisible to the eye but the file is often 60–80% smaller.
Can I compress in batch? Yes. Drop in many files and download them all. (Pro adds one-click zip export.)
Ready to shrink your images?
Private, instant, free — your files never leave your browser.
Open the compressor →Also try: Remove background · Convert to WebP · Lumiveil vs TinyPNG