Convert JFIF to PNG — Lossless, With Transparency
Convert JFIF to PNG online for a lossless copy that stays sharp when re-saved. No software to install. Preview one free or batch-convert with Premium.
Drop your JFIF file or click to browse
Why convert JFIF to PNG?
- PNG is supported far more widely than JFIF, so the file is easier to open, share and upload.
- PNG is lossless, so the converted image loses no further detail when you edit and save it again.
- PNG is made for screenshots, logos, text graphics and cut-outs.
What to expect when converting JFIF to PNG
- 转换无法找回 JFIF 压缩已去除的细节：PNG 是图像现状的精确副本，文件通常更大。
- 您原来的 JFIF 文件不会被更改：您下载的是一份新的 PNG 副本。
JFIF 与 PNG 对比
| 功能 | JFIF | PNG |
|---|---|---|
| 全名 | JPEG File Interchange Format | 便携式网络图形 |
| 来源 | Defined in 1992 as the standard JPEG file layout | Published as a W3C standard in 1996 |
| 压缩 | 有损（它就是 JPEG） | 无损 |
| 透明度 | 否 | Yes — smooth, partial transparency |
| 动画 | 否 | 否 |
| 颜色 | 1670 万种颜色（每通道 8 位） | 每通道最高 16 位 |
| 可用什么打开 | Most image viewers, but many upload forms reject the .jfif extension | All browsers, phones, computers and image editors |
| 最适合 | 没有 JPG 做不到的——它保存的是相同的图像数据 | screenshots, logos, text graphics and cut-outs |
| 主要缺点 | upload forms and some apps reject the .jfif extension | large files for photographs |
In short: choose JFIF for nothing a JPG can't do — it holds the same image data; choose PNG for screenshots, logos, text graphics and cut-outs.
Frequently asked questions
- How do I convert JFIF to PNG?
- Upload your JFIF file above. It is converted to PNG automatically (change the output format or quality in the Settings tab if you need to), then click Download. There is nothing to install.
- Does converting JFIF to PNG lose quality?
- 不会增加新的损失：PNG 会按原样完整保存图片。之前 JFIF 压缩所去除的细节无法恢复。
- JFIF or PNG: which should I use?
- Use JFIF for nothing a JPG can't do — it holds the same image data. Use PNG for screenshots, logos, text graphics and cut-outs. Keep in mind the main drawback of PNG: large files for photographs.
- 什么是 JFIF 文件？
- A .jfif file is a JPEG with an unusual extension; Windows and some browsers save web images this way. The picture is identical to a .jpg, but many sites and apps refuse the .jfif name.
- Is the JFIF to PNG converter free?
- Yes. Convert, preview and download a single result without creating an account. Premium adds batch conversion (many files into one ZIP) and larger uploads.
使用 JFIF 转 PNG 可以做什么
在开始之前查看主要功能。
- 将 JFIF 图片转换为 PNG 格式
- 一次性批量转换多个 JFIF 文件
- 将相机和邮件中的照片转换为可分享的 PNG
- 获取广泛支持的应用程序和浏览器的 PNG
设置参考
5 个设置
JFIF 转 PNG 的可用控件。
设置
- 输出格式下拉框
- Chooses the file type you download. The page opens on its own output format; switch to any other format before converting.选项: JPGPNGWebPAVIFGIFTIFFBMPICOPDF
- 质量滑块范围: 20–100 · 默认: 90
- For JPG, WebP, AVIF and image-to-PDF output: higher keeps more detail but makes a bigger file; 60–80 suits most photos. Documents (Publisher, XPS, EPS…) become PDFs with every page and sharp text, with no quality setting.
- 无损模式开／关
- For WebP and AVIF output: keeps every pixel exactly (best for logos, graphics and transparency) at the cost of a larger file.
- 背景填充取色器
- 适用于无法存储透明度的 JPG、BMP 和图片转 PDF 输出：用于填充透明区域的颜色（默认为白色）。
模式
- 单个文件 / 批量下拉框
- 使用共享设置处理一个文件或一批文件。批量结果下载为一个 ZIP。选项: 单个文件批量
免费使用 · 无需注册 · 无水印上传过程全程加密传输已根据我们的数据保留政策移除
JFIF 转 PNG 相关工具
JFIF 转 PNG 之后常见后续步骤的工具。
