If you’re learning Chinese and you encounter a text you can’t fully read, there’s a workflow most learners use: copy the text, paste it into a separate tool, get the pinyin, go back to the original. It works, but it interrupts the reading.
I wanted something simpler: paste the text, see the pinyin appear above the characters immediately, click any character if you want more detail.
That’s what the Pinyin Annotator does.
How It Works
Paste any Chinese text into the input area. The tool processes it and displays each character with its pinyin romanization shown directly above — the standard way pinyin is displayed in Chinese textbooks.
Tones are color-coded: first tone in one color, second in another, third and fourth in their own colors. Neutral tones are displayed differently. This visual encoding means you can see the tonal pattern of a sentence at a glance, which matters for pronunciation practice.
If you click any character, you get a detail panel: the full pinyin, the tone number, the most common English definitions, and its HSK level if it’s in the HSK vocabulary list. This lets you quickly check unfamiliar characters without leaving the page.
The Dictionary Behind It
The annotator uses a 2,500+ character dictionary — comprehensive enough to cover essentially all common characters and most of the less-common ones you’ll encounter in standard written Chinese.
For characters that appear in multiple contexts with different pronunciations (known as 多音字, or polyphonic characters), the tool selects the most common pronunciation. This is the standard approach used in educational materials; the context-sensitive pronunciation determination would require a more complex natural language processing layer that’s beyond what a lightweight browser tool can do reliably.
In practice, for most texts, the automatic selection is correct. For specialized texts where unusual pronunciations are more common, you may occasionally need to verify.
HSK Level Highlighting
A secondary feature is HSK level highlighting — you can switch on a color overlay that shows which characters in your text are HSK 1, HSK 2, HSK 3, and above. This is useful for gauging the difficulty level of a text before you read it, or for identifying which characters in a passage you should prioritize learning.
For teachers preparing reading materials, this is a quick way to check whether a text is appropriately leveled for students.
Why I Built This Specifically as a Browser Tool
Chinese learning apps on phones are good for some things: audio practice, structured courses, gamified vocabulary. But for reading real texts — news articles, product descriptions, messages from Chinese contacts — you’re often on a computer, and you want to paste text and get help immediately.
A browser tool that works without an account or a download is faster than launching an app. It also works on any device, including ones where you can’t install software.
I’ve been using it myself when I encounter written Chinese I can’t read fully — which, despite living in China, still happens with specialized vocabulary or older texts.
Paste any Chinese text for instant pinyin annotation — click characters for tone, meaning, and HSK level: [Pinyin Annotator →](https://ordinarymantrying.com/tools/pinyin-annotator.html)
What’s the most useful Chinese reading tool you’ve found that works offline or without an account? I’m always looking for what’s actually working for learners.
Free Tool
Paste any Chinese text — get instant pinyin above each character, plus English translation. No install, no account.
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