Character Frequency Analyzer
★★★★½ 4.6 (143 ratings)
🔒 Client-side — Your data never leaves your browser ✅ 100% Free — No signup, no limits ⚡ Instant — No server processing

★★★★★
Loading... Thanks for your rating!

Free online character frequency statistics tool - ASCII/Unicode analysis/bar chart/export

📝 输入文本

FAQ

Q1: 字符频率分析有什么用途？

字符频率分析可用于密码学（频率攻击）、文本分类、数据压缩算法设计、编码问题排查、Unicode调试等。在密码学中，英文字母E出现频率最高（约12.7%），分析字符频率可以帮助破解简单替换密码。

Q2: 支持哪些字符类型？

支持所有Unicode字符，包括英文字母、数字、标点符号、中文字符、日文假名、特殊符号、表情符号等。每个字符都会显示其Unicode码点和类型分类。

Q3: 数据会上传到服务器吗？

完全不会！所有分析都在浏览器本地完成，文本数据绝不上传到任何服务器，安全可靠。

❓ Frequently Asked Questions

Does Character Frequency Analyzer upload my data to a server?

No. Character Frequency Analyzer uses client-side processing — everything runs in your browser. Your data never leaves your device, and the tool works even without an internet connection.

Is my data safe when using Character Frequency Analyzer?

Absolutely. All processing happens locally in your browser. No data is sent to any server, so there's zero risk of data leaks. Your information stays completely under your control.

Can I use Character Frequency Analyzer on my phone?

Yes. Character Frequency Analyzer is fully responsive and works on phones, tablets, and desktops. The interface adapts automatically to your screen size.

Is Character Frequency Analyzer free to use?

Yes, Character Frequency Analyzer is completely free to use. No registration or login required — all features are available immediately.

What text encodings are supported?

UTF-8 is the primary encoding. Most tools also support ASCII, UTF-16, and other common encodings.