Compress Images
Reduce image file sizes while maintaining visual quality. Drag the quality slider to find the perfect balance.
100% Private — No Upload
85%
Drag & drop your images here
or click to browse, or paste (Ctrl+V)
Supports HEIC, WebP, PNG, JPG, AVIF, BMP
How to Compress Images
1
Drag and drop your images into the box above, or click to browse.
2
Adjust the quality slider to control compression level.
3
Click Download to save the compressed images.
Frequently Asked Questions
How much can I compress my images?
It depends on the source image. A quality setting of 80% typically reduces JPG file sizes by 40-60% with minimal visible difference. Use the comparison view to check quality before downloading.
What formats can I compress?
You can compress JPG, PNG, WebP, HEIC, and AVIF images. The output format can be JPG, PNG, or WebP.
Why is the output file sometimes larger than the original?
This can happen for a few reasons: (1) Converting from a lossy format (JPG, WebP) to a lossless format (PNG) preserves every pixel, which naturally produces a larger file in exchange for zero quality loss. (2) AVIF uses the AV1 codec which has encoding overhead for small or simple images — it excels at high-resolution photos where it achieves 20–50% better compression than JPEG. (3) If the source is already heavily compressed, re-encoding may not reduce the size further. PicShift uses industry-leading WASM encoders (MozJPEG, OxiPNG, libwebp) to produce the smallest possible output at your chosen quality. In compress mode, PicShift automatically keeps the original file when compression would increase the size.