批量转PNG
转换为无损 PNG，保留透明通道。
关于「批量转PNG」
它属于「格式转换」分类：批量图片格式互转，解码与编码都在浏览器完成。
- 把多张图片统一转为无损的 PNG，保留透明背景。
- PNG 体积通常大于 JPG/WebP，适合需要清晰边缘或透明的场景。
- 全程本地处理，图片不会离开你的设备。
完全免费、无需注册；所有处理都在浏览器本地完成，文件不会上传到任何服务器。
相关关键词：批量转PNG、格式转换、png、批量、在线工具、免费
如何使用「批量转PNG」
- 打开工具：打开「批量转PNG」页面，无需注册、无需安装任何软件。
- 准备输入：PNG 无损并保留透明通道，适合图标与截图。
- 填入内容：把内容粘贴进输入框，或把文件拖入页面；也可以点击「示例」先填入样例数据试一下。
- 设置选项并处理：按需调整页面上的选项，然后点击处理 / 转换 / 生成按钮。
- 获取结果：处理完全在浏览器本地完成，结果可直接复制或下载，文件不会上传到任何服务器。
常见问题
- PNG 和 JPG 该怎么选？
- 需要透明、图标、文字截图选 PNG；照片、体积优先选 JPG。
- 转换是真正的“无损”吗？
- PNG 编码本身无损，但把 JPG 这类有损图转成 PNG 并不能恢复已丢失的细节。
- 透明背景会保留吗？
- 会。PNG 保留透明通道，图标或截图转过来仍是透明底。
Batch to PNG (English)
Convert to lossless PNG, keep transparency.
Belongs to “Converters”: Batch image format conversion, decoding and encoding in the browser.
- Batch-converts to lossless PNG, preserving the transparent background.
- PNG is usually larger than JPG/WebP; use it when you need crisp edges or transparency.
- Fully local; images never leave your device.
Free, no sign-up; everything runs locally in your browser and files are never uploaded.
Keywords: Batch to PNG, Converters, png, batch, online tool, free
How to use it
- Open the tool：Open the “Batch to PNG” page — no sign-up and nothing to install.
- Prepare the input：PNG is lossless and keeps alpha; good for icons and screenshots.
- Provide the input：Paste your content into the input box or drop a file onto the page; you can also click “Sample” to try example data first.
- Adjust options and run：Adjust the options if needed, then click the process / convert / generate button.
- Get the result：Everything runs locally in your browser; copy or download the result — your files are never uploaded.
FAQ
- PNG or JPG?
- Pick PNG for transparency, icons, text screenshots; JPG for photos or size priority.
- Is it truly lossless?
- PNG encoding is lossless, but converting a lossy JPG to PNG cannot recover lost detail.
- Is the transparent background kept?
- Yes. PNG keeps the alpha channel, so icons or screenshots stay transparent.
More tools in Converters
- Batch to JPG — Convert multiple images to JPG and pack them.
- Batch to WebP — Convert to smaller WebP files.
- Batch to BMP — Export uncompressed BMP bitmaps.
- Batch to GIF — Convert static images to single-frame GIF.
- Batch to AVIF — Convert to high-compression AVIF (browser-dependent).
- HEIC Converter — Convert iPhone HEIC photos to JPG/PNG.
- SVG to PNG — Rasterize SVG to PNG at a given scale.
- Image to Base64 — Generate DataURL, CSS and img-tag code.
- Extract Audio from Video — Separate the audio track from a video and export WAV.
- Audio Converter — Decode and re-encode to WAV, change sample rate.