Image Format

PNG Converter — Free Online

Convert Portable Network Graphics files to and from other formats. Fast, free, no registration required.

或拖放到页面任意位置

支持所有主流文件格式

最大文件大小：2GB (专业版) · 100MB 免费

5 free conversions/day — no account needed

或免费注册 →

传输加密文件 2 小时后自动删除无需注册

或从以下导入

安全传输

HTTPS 加密上传

隐私优先

文件处理后自动删除

无需注册

即刻开始转换

随处可用

任何浏览器，任何设备

See our live conversion success rate

了解更多关于PNG的信息

About PNG files

PNG is a lossless image format. It keeps transparency and full color. People convert to PNG when they need every pixel unchanged or a transparent background. This hub converts HEIC, WebP, AVIF, JPG, SVG, and PDF files to PNG. It also converts PNG to JPG, WebP, ICO, and PDF.

People convert from PNG when they need a smaller file or a different format. JPG and WebP are smaller for photos. ICO is for favicons. PDF is for documents. People convert to PNG when a format is not supported or when they need a lossless copy. The converter runs in the browser and on our servers. Nothing to install. Uploads and downloads use HTTPS. No watermark.

How we convert PNG to other formats

PNG output

Lossless with compression level 9. Transparency is kept when the source has it. Full color is default. Palette reduction happens only if you turn it on.

Size

The original pixel size is kept by default. A resize only makes the image smaller, never larger, unless you change that option.

Transparency

PNG, WebP, and ICO output keep transparency. JPG output cannot keep transparency. With flatten on, transparent pixels get the background color you pick, and white is the default.

Quality

JPG and WebP output use quality 85 by default. WebP has a lossless option. PNG output is always lossless.

Documents

PDF to PNG renders at 300 DPI by default, with 72, 150, 300, and 600 DPI choices. PNG to PDF places the image on a page that matches the image by default, centered on white at 300 DPI.

Common problems and fixes

The PNG file is much larger than the source file.

PNG is lossless, so photos need many bytes. Use JPG or WebP for photos, or turn on palette reduction for simple graphics.

Transparency disappeared after converting to JPG.

JPG cannot be transparent. Keep the image as PNG, or convert to WebP, which supports transparency.

The output looks blurry or pixelated.

PNG is a pixel format. Start from a larger source. For SVG, set larger width and height values in the SVG file. For favicons, use a simple, bold version of your logo.

Questions about PNG conversion

What are the file size limits?

On the PNG converter page, without an account you can convert files up to 100 MB and do 5 conversions per day. On the PNG converter page, a free account allows files up to 500 MB and 20 minutes of processing each day. Pro: files up to 2 GB. Business: files up to 10 GB.

How long are files kept?

On the PNG converter page, files are removed automatically after 2 hours on the free plan or with no account, after 7 days on Pro, and after 30 days on Business.

Do I need to install anything?

No. The PNG converter page runs in the browser, and the conversion is done on our servers. Uploads and downloads use HTTPS. No watermark on any plan.

Can I convert several pages or images at once?

PDF to PNG makes each page one PNG, delivered together in a ZIP. PNG to PDF can combine several PNG files into one multi-page PDF. Add the images in the order you want them to appear.

Will my PNG keep transparency?

PNG output keeps transparency when the source has it. PNG to WebP and PNG to ICO also keep transparency. JPG output cannot keep transparency.

Image Format

PNG Converter — Free Online

Convert Portable Network Graphics files to and from other formats. Fast, free, no registration required.

或拖放到页面任意位置

支持所有主流文件格式

最大文件大小：2GB (专业版) · 100MB 免费

5 free conversions/day — no account needed

或免费注册 →

传输加密文件 2 小时后自动删除无需注册

或从以下导入

安全传输

HTTPS 加密上传

隐私优先

文件处理后自动删除

无需注册

即刻开始转换

随处可用

任何浏览器，任何设备

See our live conversion success rate

了解更多关于PNG的信息

About PNG files

How we convert PNG to other formats

PNG output

Lossless with compression level 9. Transparency is kept when the source has it. Full color is default. Palette reduction happens only if you turn it on.

Size

The original pixel size is kept by default. A resize only makes the image smaller, never larger, unless you change that option.

Transparency

PNG, WebP, and ICO output keep transparency. JPG output cannot keep transparency. With flatten on, transparent pixels get the background color you pick, and white is the default.

Quality

JPG and WebP output use quality 85 by default. WebP has a lossless option. PNG output is always lossless.

Documents

PDF to PNG renders at 300 DPI by default, with 72, 150, 300, and 600 DPI choices. PNG to PDF places the image on a page that matches the image by default, centered on white at 300 DPI.

Common problems and fixes

The PNG file is much larger than the source file.

PNG is lossless, so photos need many bytes. Use JPG or WebP for photos, or turn on palette reduction for simple graphics.

Transparency disappeared after converting to JPG.

JPG cannot be transparent. Keep the image as PNG, or convert to WebP, which supports transparency.

The output looks blurry or pixelated.

PNG is a pixel format. Start from a larger source. For SVG, set larger width and height values in the SVG file. For favicons, use a simple, bold version of your logo.

Questions about PNG conversion

What are the file size limits?

How long are files kept?

On the PNG converter page, files are removed automatically after 2 hours on the free plan or with no account, after 7 days on Pro, and after 30 days on Business.

Do I need to install anything?

No. The PNG converter page runs in the browser, and the conversion is done on our servers. Uploads and downloads use HTTPS. No watermark on any plan.

Can I convert several pages or images at once?

PDF to PNG makes each page one PNG, delivered together in a ZIP. PNG to PDF can combine several PNG files into one multi-page PDF. Add the images in the order you want them to appear.

Will my PNG keep transparency?

PNG output keeps transparency when the source has it. PNG to WebP and PNG to ICO also keep transparency. JPG output cannot keep transparency.

PNG Converter — Free Online

如何转换

转换为PNG

从PNG转换

什么是 PNG？

格式详情

主要特点

常见问题

About PNG files

How we convert PNG to other formats

Common problems and fixes

Questions about PNG conversion

PNG Converter — Free Online

如何转换

转换为PNG

从PNG转换

什么是 PNG？

格式详情

主要特点

常见问题

About PNG files

How we convert PNG to other formats

Common problems and fixes

Questions about PNG conversion