Compress PNG
Compress PNG — private browser processing
Drop an image here or click to browse
One image at a time · Max 20 MB
Re-encode PNG locally — transparency preserved
Original
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Output
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Compress PNG Online
PNG files from screenshots and graphics can be huge. Re-encoding through Canvas strips metadata and optimizes pixels. For photos, consider PNG to JPG for much smaller files.
How to Use
- Drop or select an image (JPG, PNG, or WebP — max 20 MB).
- Adjust settings if shown — output size updates automatically.
- Compare original vs output size in the badges above.
- Click Download. Your image never leaves your browser.
Frequently Asked Questions
Does PNG keep transparency?
Yes — output stays PNG with alpha if the source had it.
Lossless?
Re-encoding may change pixels slightly; for true lossless use dedicated optimizers.
Related Tools
在线压缩 PNG
截图和 UI 导出的 PNG 往往很大。通过 Canvas 重新编码可去除元数据并优化像素；照片类内容建议转 JPG 或 WebP。
使用方法
- 拖放或选择图片（JPG、PNG、WebP，最大 20 MB）。
- 如有参数可调，修改后输出大小会自动更新。
- 对比上方原图与输出大小。
- 点击下载。图片仅在浏览器内处理，不会上传。
常见问题
透明背景还在吗？
是的，输出仍为带 Alpha 的 PNG。
无损吗？
重新编码可能略有像素变化；极致无损请用专业 PNG 优化器。
相关工具
试试 Png To Jpg、PNG 转 WebP、图片压缩。