Learn Chinese with Rolko
AI-powered web app + browser extension

Learn Chinese from YouTube, Netflix, and any website

Hover over Chinese for instant pinyin and meaning, save useful words, and remember them with spaced repetition.

Use the web app on mobile. Install the browser extension on desktop.

Watch YouTube or Netflix, learn Chinese

Install the desktop extension and every Chinese subtitle becomes interactive — tap or hover a word for instant pinyin and meaning, then save it to your vocabulary.

YouTubeGB
Search
刚到成都时候这里不太熟悉
0:00 / 0:15
Extension overlay — tap or hover a word to explore

Import transcripts from YouTube, Missevan, Spotify & more

Paste a URL or any Chinese text and start reading instantly. Tap or hover any Chinese word, mark it as learned or learning and review it in the app.

Reading workspace

中文秘诀

Tap or hover any word for pinyin and meaning, then save it as learned or learning.

Word Coverage

Learned: 50%Learning: 20%New: 30%
00:01:23主持人
中文多久
00:01:26嘉宾
大概三年但是每天练习
00:01:31主持人
什么好的学习方法
00:01:35嘉宾
觉得中文有用

Review with SRS

Spaced-repetition surfaces the right words at the right time. Short daily sessions that actually stick.

Review

Vocab Review

加油
今天比赛重要大家一起加油

Your vocabulary, at a glance

Every word you save lands here. Filter by status, search instantly, and see pinyin and meaning and example sentences.

12 words
每天
měitiānevery day; dailyStatuslearnedNext reviewIn 4 months
努力
nǔlìto work hard; diligentStatuslearningNext reviewIn 3 months
进步進步
jìnbùprogress; to make progressStatuslearnedNext reviewIn 3 months
有趣
yǒuqùinteresting; fascinatingStatuslearningNext reviewIn 2 months
语言語言
yǔyánlanguageStatuslearningNext reviewIn 2 months
城市
chéngshìcity; townStatuslearnedNext reviewIn 2 months
明白
míngbaito understand; clearStatuslearningNext reviewIn 2 months
工作
gōngzuòwork; job; to workStatuslearnedNext reviewIn 1 month
非常
fēichángvery; extremelyStatuslearnedNext reviewIn 1 month
喜欢喜歡
xǐ huanto like; to be fond ofStatuslearningNext reviewIn 4 weeks
朋友
péngyoufriendStatuslearnedNext reviewIn 3 weeks
学习學習
xuéxíto study; to learnStatuslearnedNext reviewIn 3 weeks

Keep track of your progress

See exactly how many words you know, your review streak, daily activity, and where each word sits on the mastery scale.

rolko.xyz/learnchinese/stats
Saved vocab
10,200
7,500 learned
2,700 learning
Learned
7,500
+12 today
+48 this week
Learning
2,700
−2 back to learning today
−8 back this week
Review queue
142
Recommended today: 100
~2 days at 100/day
Streak
47 days
Best 61
78 active days
Vocabulary progress
7,500 learned · 2,700 learning · 10,200 total
Learned 73.5%Learning 26.5%
Movement
Today
+12 learned
-2 back to learning
This week
+48 learned
-8 back to learning
This month
+120 learned
-18 back to learning
This year
+7500 learned
+10,200 saved
Words moved to learned (last 90 days)
Review activity
Daily reviews and accuracy trend
Daily reviews
1,227 vocab · 404 tone
30d
Jun 1
58 total
Jun 2
69 total
Jun 3
44 total
Jun 4
78 total
Accuracy trend
Right-answer % per day, 30d · rest days skipped
92% avg
Avg
92%
High
93%
Low
91%
Due now
Words due for review right now.
定位
positioning / orientation / locate
惨遭
suffer / fall victim to / be subjected to
昏暗
dim / dark / gloomy
Weak
Still learning — review interval under 7 days.
具尸
corpse / dead body / Corpse
Jun 9
跑腿
run errands / errand runner / delivery person
Jun 7
副总
Vice president / Deputy General Manager
Jun 12
Mastered
Graduated to learned status.
女主
heroine / female protagonist / female lead
跑出
run out / escape / break out
花店
flower shop / florist / flower store
Tone practice
Master tones from the most-common characters up
94% accuracy
Top 100
500
Top 500
1k
Top 1k
2k
Top 2k
3k
Top 3k
4k
Top 4k
5k
Top 5k
Top 500current tier
312 / 500 mastered
62% completeNext: Top 1000
Reviews
8,780
8,240 right
Accuracy
94%
540 wrong
Due today
18
5 new
Active
188
in rotation

Start learning Chinese for free

Learn Chinese while watching and browsing

Hover any Chinese word to see its pinyin and meaning instantly. Save useful vocabulary, review it with spaced repetition, and keep watching without opening another dictionary.

Works on YouTube, Netflix, Bilibili and Chinese websites.

No credit card required.

Free to start. Upgrade only when you need advanced AI features or higher usage.

Hover Chinese on any websiteWorks on Netflix, YouTube & BilibiliPinyin + meaning instantlySpaced-repetition reviewsCancel paid plans anytime