Base64 转换为 字体文件 .woff

若从代码中看到Base64 编码的字体包，不好确认包含哪些字体，可以通过截取的方式进行解析：

@font-face {
    font-family: 'SourceHanSerifCN-Regular';
    src: url('data:font/woff2;charset=utf-8;base64,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') format('woff2'),
        url('data:font/woff;charset=utf-8;base64,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') format('woff');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

截取Base64的部分

@font-face {
  font-family: 'MyFont';
  src: url(data:font/woff2;base64,你的base64字符串) format('woff2');
  font-weight: normal;
  font-style: normal;
}

截取后通过JS解析（可以直接在浏览器端运行）

// 解码 Base64 为二进制数据
function base64ToFont(base64String, filename = 'font.woff') {
  // 移除 data URL 前缀（如果有）
  const base64Data = base64String.replace(/^data:font\/\w+;base64,/, '');
  
  // 解码 Base64
  const binaryString = atob(base64Data);
  const bytes = new Uint8Array(binaryString.length);
  
  for (let i = 0; i < binaryString.length; i++) {
    bytes[i] = binaryString.charCodeAt(i);
  }
  
  // 创建 Blob 对象
  const blob = new Blob([bytes], { type: 'font/woff' });
  
  // 创建下载链接
  const url = URL.createObjectURL(blob);
  const link = document.createElement('a');
  link.href = url;
  link.download = filename;
  link.click();
  
  // 清理
  URL.revokeObjectURL(url);
}

比如上述的文件

base64ToFont('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')

解析后浏览器自动下载了 font.woff 文件

查看字体包的 Character set

Wakamai Fondue: Drop A Font ! 只需要把 font.woff 文件传上去，即可查看字体文件对应的字符集（如图）

从图中就可以查看到对应的字符集包含哪些内容，更清晰了解到哪些字体不在字体包内。

字符集说明

需要注意一点，字符集对应的编码是【十六进制】

如上图所看到的字符 【A】 对应的编码是 【FF21】 （说明是个特殊字符）

这跟我们平时键盘敲出来的字符A是不同的，键盘 【A】 的是 【0x41】 （如下图所示）

要确认清楚字符集的对应，这样才能更好地了解清楚，避免错认。

大写字母A-Z编码

字符	十进制	十六进制	二进制
A	65	0x41	01000001
B	66	0x42	01000010
C	67	0x43	01000011
D	68	0x44	01000100
E	69	0x45	01000101
F	70	0x46	01000110
G	71	0x47	01000111
H	72	0x48	01001000
I	73	0x49	01001001
J	74	0x4A	01001010
K	75	0x4B	01001011
L	76	0x4C	01001100
M	77	0x4D	01001101
N	78	0x4E	01001110
O	79	0x4F	01001111
P	80	0x50	01010000
Q	81	0x51	01010001
R	82	0x52	01010010
S	83	0x53	01010011
T	84	0x54	01010100
U	85	0x55	01010101
V	86	0x56	01010110
W	87	0x57	01010111
X	88	0x58	01011000
Y	89	0x59	01011001
Z	90	0x5A	01011010

小写字母a-z编码

字符	十进制	十六进制	二进制
a	97	0x61	01100001
b	98	0x62	01100010
c	99	0x63	01100011
d	100	0x64	01100100
e	101	0x65	01100101
f	102	0x66	01100110
g	103	0x67	01100111
h	104	0x68	01101000
i	105	0x69	01101001
j	106	0x6A	01101010
k	107	0x6B	01101011
l	108	0x6C	01101100
m	109	0x6D	01101101
n	110	0x6E	01101110
o	111	0x6F	01101111
p	112	0x70	01110000
q	113	0x71	01110001
r	114	0x72	01110010
s	115	0x73	01110011
t	116	0x74	01110100
u	117	0x75	01110101
v	118	0x76	01110110
w	119	0x77	01110111
x	120	0x78	01111000
y	121	0x79	01111001
z	122	0x7A	01111010

0-9的数字编码如下

字符	十进制	十六进制	二进制
0	48	0x30	00110000
1	49	0x31	00110001
2	50	0x32	00110010
3	51	0x33	00110011
4	52	0x34	00110100
5	53	0x35	00110101
6	54	0x36	00110110
7	55	0x37	00110111
8	56	0x38	00111000
9	57	0x39	00111001