Image Compressor with Preview
Compress images with a live before-and-after preview slider. Compare original and compressed quality side by side before downloading. 100% client-side, free to use.
Platform Preset Details
Recommended settings for your file.
Drag & drop files here, or click to browse
Supports PNG, JPG, WebP, AVIF, SVG, and GIF (static). Fully secure, runs 100% locally.
Global Presets
Set compression profile for all queued files.
Compare Visual Quality
Original: -- | Compressed: --
Related Tools & Workflows
Why preview matters before downloading
Blindly compressing images often leads to unpleasant surprises: blurry text, muddy gradients, or banding artifacts that only become obvious after upload. An image compressor with preview lets you inspect the exact visual difference before committing to the compressed file.
CompressNeo's preview feature displays a draggable comparison slider. Drag left to see the original, drag right to see the compressed version. This makes it trivial to catch quality issues and adjust settings accordingly.
How the preview workflow works
- Upload: Drop your image into the compressor. Both original and compressed versions are rendered to canvas.
- Compress: Adjust quality, format, or target size. The tool reprocesses the image in real-time.
- Compare: Use the before/after slider to inspect compression artifacts, blur, and color shifts.
- Download: Once satisfied with the preview, download the optimized file with confidence.
Designers validating screenshot compression, photographers checking photo quality at different settings, and marketers ensuring brand assets remain crisp all benefit from visible previews.