JPEG to PNG Online Converter - Batch Convert (Drag & Drop, Client-side, No Upload)
Batch convert JPEG images to PNG. Supports drag & drop and multi-select.
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
Why convert JPEG to PNG?
PNG is lossless and supports transparency, which is useful when you need transparent backgrounds, crisp edges, or assets for further editing/design work.
What are the characteristics of JPEG?
JPEG is a common lossy format, great for photos and usually small, but it doesn’t support transparency.
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 can be smaller.
Will my images be uploaded?
No. Conversion happens locally in your browser.