Free Online Image Compressors
Shrink photo file size by 60-90% with no visible quality loss. Perfect for websites, email, WhatsApp uploads, and disk-space cleanups. Everything happens locally in your browser.
Large images slow down websites, waste mobile data, and hit inbox size limits. Modern compression can typically remove 60-90% of a file's weight before you can spot the difference — the trick is choosing the right format and quality slider.
Our compressors give you visual before/after previews, precise quality control, target-size modes (compress to under 100KB, 500KB, 1MB, etc.), and format conversion in the same step. For bulk work, the Bulk Image Compressor processes entire folders at once.
All Compress Tools
Image Compressor
Shrink JPG, PNG and WebP file size without visible quality loss.
Image Optimizer
Auto-optimize images for the web - smaller size, faster page loads.
PNG Compressor
Compress PNG images and reduce file size while preserving transparency.
JPG Compressor
Compress JPG/JPEG photos with an adjustable quality slider.
JPEG Compressor
Reduce JPEG file size for faster loading websites and email.
WebP Compressor
Compress WebP images to shrink size without visible quality loss.
GIF Compressor
Compress animated and static GIFs to reduce file size.
Bulk Image Compressor
Compress many images at once - process a whole batch in your browser.
Lossless Image Compressor
Shrink PNG/WebP without any pixel loss - perfect for graphics and logos.
Image Size Reducer
Reduce image file size in KB or MB with a target-size compressor.
KB Image Compressor
Compress an image to a specific KB target size for uploads and forms.
Photo Compressor
Compress photos from your camera or phone without losing sharpness.
Image Quality Reducer
Reduce JPEG quality to shrink file size, with adjustable quality slider.
Compress — FAQ
How much can I compress an image without visible loss?
Typical photos compress 60-80% at quality 80 (WebP or JPG) with no visible difference. Graphics with sharp edges (screenshots, logos) tolerate less compression — use PNG or WebP lossless.
What's the difference between lossy and lossless compression?
Lossy compression throws away data your eye is unlikely to notice — smaller files, some quality trade-off. Lossless compression rewrites the file more efficiently without changing a single pixel — perfect fidelity, more modest size savings.
Can I compress to a specific file size like under 100KB?
Yes — use the KB Image Compressor and enter your target size. It auto-tunes quality to hit the number.