PNG Compressor Online - Batch Reduce PNG Size (Drag & Drop, Client-side, No Upload)

Batch compress PNG and keep PNG output. Supports drag & drop and multi-select.

0.80

Tip: PNG is lossless. “Quality” here reduces color precision to shrink size (lower values look more blocky).

拖拽图片到这里或点击选择文件

支持多选

FAQ

How can I compress PNG images and reduce file size?

You can shrink PNGs by reducing color precision and removing redundant data. This tool provides a “quality” slider that reduces color precision to make PNG files smaller while keeping PNG output.

What are the characteristics of PNG?

PNG is a lossless format with alpha transparency, great for icons, UI assets, and screenshots with crisp edges.

Why does PNG have a “quality” slider?

PNG is lossless and browser exports usually ignore the quality parameter. This tool simulates “quality” by reducing color precision: lower values look more blocky but are often smaller.

Will my images be uploaded?

No. Conversion happens locally in your browser.