Reduce image file size without losing quality.
Drag and drop an image here
Compression Settings
Lower quality means smaller file size.
Reduce image file size without losing quality.
Drag and drop an image here
Lower quality means smaller file size.
Image compression reduces the file size of a photo or graphic so it takes less storage space and loads faster on the web. There are two types: lossy compression discards some visual data to achieve dramatic size reductions (JPG, WebP), while lossless compression reduces file size without any quality loss (PNG optimization). The quality slider lets you control the tradeoff — lower quality means smaller files, higher quality means larger files with more detail preserved. For most uses, 75-85% quality produces files that are visually identical to the original at a fraction of the size.
Smaller images make everything faster and easier:
The right quality setting depends on where the image will be used:
Compression and resizing both reduce file size, but they work differently. Compression reduces file size by adjusting encoding quality — the image keeps its original pixel dimensions. Resizing reduces file size by shrinking the pixel dimensions themselves — a 4000×3000 photo becomes 1200×900, for example. For the web, using both together delivers the best results: resize to the display dimensions first, then compress to the target quality. FileNaut offers a dedicated image resizer if you need to change dimensions.