base64-parser

Base64 Encoding/Decoding Skill

Features

Operation	Description
decode	Decode Base64 strings to text/JSON/binary
encode	Encode text/files to Base64
detect	Automatically detect Base64 content type (JSON/text/image/PDF, etc.)
batch	Batch decode multiple Base64 strings

Usage

Important: Always use the -p parameter to get human-friendly output format!

1. Decode Base64

# 解码并显示完整内容（推荐）
python3 .blade/skills/base64-parser/scripts/base64_tool.py -p decode "SGVsbG8gV29ybGQ="

# 解码并保存到文件
python3 .blade/skills/base64-parser/scripts/base64_tool.py -p decode "..." --output result.txt

# 解码二进制（如图片）并保存
python3 .blade/skills/base64-parser/scripts/base64_tool.py -p decode "iVBORw0KGgo..." --output image.png --binary

2. Encode to Base64

# 编码文本
python3 .blade/skills/base64-parser/scripts/base64_tool.py -p encode "Hello World"

# 编码文件
python3 .blade/skills/base64-parser/scripts/base64_tool.py -p encode --file image.png

# URL 安全编码
python3 .blade/skills/base64-parser/scripts/base64_tool.py -p encode "Hello World" --url-safe

3. Detect Type

# 自动检测 Base64 内容类型并显示内容
python3 .blade/skills/base64-parser/scripts/base64_tool.py -p detect "eyJ0ZXN0IjogMX0="

4. Batch Processing

# 从文件批量解码（每行一个 Base64）
python3 .blade/skills/base64-parser/scripts/base64_tool.py -p batch --file input.txt --output-dir ./decoded/

Output Format Description

• -p (pretty): Human-friendly format, with emoji icons, displays the complete decoded content
• Without -p: JSON format, suitable for program processing

Example Output (using -p）：

✅ Successfully decoded as JSON

📊 类型: json (application/json)
📏 大小: 35 bytes

📄 解码内容:
--------------------------------------------------
{
  "name": "Blade",
  "version": "2.0"
}
--------------------------------------------------

Supported Formats

Format	Auto-detect	Description
JSON	✅	Automatically parse and format output
Plain Text	✅	UTF-8 text
PNG/JPEG/GIF	✅	Detected via magic bytes
PDF	✅	Detected via %PDF header
Other Binary	✅	Display hexadecimal preview

Common Scenarios

1. Parse JWT Token: The payload of a JWT is Base64-encoded JSON
2. View API Response: Some APIs return Base64-encoded data
3. Handle Configuration Files: Kubernetes Secrets, etc. use Base64
4. Image Data URI：data:image/png;base64,... format
5. Debug Encrypted Data: View the original content before encryption