Base64 编码

进行 Base64 编码

在浏览器中运行 · 无需上传

此工具及本页说明目前仍为英文。功能完全相同：一切都在你的浏览器中运行。

Direction Encode to Base64 Decode Base64

Text

Base64

URL-safe (- and _ instead of + and /, no = padding) Line break every 76 characters (email, PEM)

任何内容都不会离开你的设备
服务器不限制文件大小
无需注册，无水印
免费

How to encode Base64

Type or paste text, or choose "Encode a file…".
Pick URL-safe Base64, line breaks or a data: URL if you need them.
Copy or download the result.

Good to know

Text is encoded as UTF-8, so accents, other scripts and emoji come back exactly.
URL-safe Base64 uses - and _ instead of + and / and drops the = padding, as JWTs and many URLs do.
Base64 is about a third larger than the original data. It is an encoding, not encryption: anyone can decode it.

常见问题

Can I encode images?

Yes, any file. For images, Image to Base64 also gives ready-made HTML and CSS snippets.

Is my text or file uploaded?

No. Everything happens in your browser, and the page is blocked from uploading anything.