Sites like Duolingo

01 · Entity

About Duolingo

Duolingo duolingo.com

Duolingo

Duolingo is the world's most popular way to learn a language. It's 100% free, fun and science-based. Practice online on duolingo.com or on the apps!

Wikidata: American educational technology company

Top 1K · #473 15 technologies Crawled Nov 6, 2026

Visit Duolingo

Summary by Claude

Duolingo offers gamified language-learning lessons through its website and mobile apps, free to use with an optional paid subscription. It also offers math and music courses and the Duolingo English Test.

Who it’s for

Language learners of all levels

Business model

Freemium subscriptions and advertising

• language learning app
• learn Spanish online
• language courses
• gamified lessons
• Duolingo English Test
• Super Duolingo subscription
• vocabulary practice
• mobile language app

02 · Embedding space

Competitor map

Each alternative by how close its vector is to Duolingo’s (x) and how much traffic it gets, how much of the stack it shares, or where it sits in the embedding space itself (y). Lines split each axis at the median. Hover for the numbers, click to jump to it in the list.

1. 01
   Babbel babbel.com English

   Learn a Language Online - Fast & Effective | Babbel

   Babbel is the effective way to learn a new language. Our system uses scientifically proven methods to improve your grammar, vocabulary, and pronunciation.

   • Amazon SES
   • Apple Business
   • Amazon CloudFront
   • Google Search Console
   • Google Workspace
   • OneTrust

   0 say Babbel is a good alternative to Duolingo 0 say Babbel isn’t a real alternative to Duolingo

   Comment
   Very close cos 0.909
2. 02
   Khan Academy khanacademy.org Top 10K English

   Client Challenge

   non-profit educational organization

   • Apple Business
   • Google Search Console
   • Google Workspace
   • Microsoft 365
   • OneTrust
   • OpenAI

   0 say Khan Academy is a good alternative to Duolingo 0 say Khan Academy isn’t a real alternative to Duolingo

   Comment
   Very close cos 0.901
3. 03
   IXL ixl.com Top 10K English

   IXL | Math, Language Arts, Science, Social Studies, and Spanish

   IXL is the world's most popular subscription-based learning site for K–12. Used by over 18 million students, IXL provides personalized learning in more than 20,000 topics, covering math, language arts, science, social studies, and Spanish. Interactive questions, awards, and certificates keep kids motivated as they master skills.

   • Apple Business
   • Google Search Console
   • OneTrust
   • OpenAI
   • reCAPTCHA
   • Atlassian

   0 say IXL is a good alternative to Duolingo 0 say IXL isn’t a real alternative to Duolingo

   Comment
   Very close cos 0.901
4. 04
   Preply preply.com Top 10K English

   Preply: Learn with the best online language tutors on app & web

   Looking for a tutor? Preply is the best platform for private online lessons with a flexible payment system and affordable prices. Book your first lesson.

   • Apple Business
   • Google Search Console
   • Google Tag Manager
   • Google Workspace
   • OpenAI
   • Salesforce

   0 say Preply is a good alternative to Duolingo 0 say Preply isn’t a real alternative to Duolingo

   Comment
   Very close cos 0.900
5. 05
   Glosbe glosbe.com Top 10K English

   Glosbe Dictionary - All Languages of the World in One Place

   Glosbe dictionary - one place, all languages! Translations, example sentences, pronunciation recordings and grammar references. Check it out!

   • Google Search Console
   • Cloudflare
   • Cloudflare DNS
   • Cloudflare Web Analytics
   • Google Ad Manager
   • Google Analytics

   0 say Glosbe is a good alternative to Duolingo 0 say Glosbe isn’t a real alternative to Duolingo

   Comment
   Close cos 0.894
6. 06
   Reverso reverso.net Top 10K English

   online translation and linguistic tools

   • Google Search Console
   • Microsoft 365
   • Brevo
   • Cloudflare
   • Cloudflare DNS
   • Mailjet

   0 say Reverso is a good alternative to Duolingo 0 say Reverso isn’t a real alternative to Duolingo

   Comment
   Close cos 0.890
7. 07
   MasterClass masterclass.com English

   online education platform

   • Amazon SES
   • Apple Business
   • Google Search Console
   • Google Workspace
   • Microsoft 365
   • OneTrust

   0 say MasterClass is a good alternative to Duolingo 0 say MasterClass isn’t a real alternative to Duolingo

   Comment
   Close cos 0.890
8. 08
   Coursera coursera.org Top 10K English

   Coursera | Online Courses, Certificates, & Degrees

   Learn job-ready skills with online courses, Professional Certificates, Specializations, and degrees from Google, Meta, Anthropic, DeepLearning.AI, Stanford, and more. Start learning today.

   • Amazon SES
   • Apple Business
   • Amazon CloudFront
   • Google Search Console
   • Google Workspace
   • Microsoft 365

   0 say Coursera is a good alternative to Duolingo 0 say Coursera isn’t a real alternative to Duolingo

   Comment
   Close cos 0.889
9. 09
   Quizlet quizlet.com Top 10K English

   Captcha Challenge…

   online studying platform

   • Apple Business
   • Google Search Console
   • Google Workspace
   • Microsoft 365
   • OneTrust
   • OpenAI

   0 say Quizlet is a good alternative to Duolingo 0 say Quizlet isn’t a real alternative to Duolingo

   Comment
   Close cos 0.888
10. 10
    Wikibooks wikibooks.org Top 10K English

    Wikibooks

    free multilingual online collection of textbooks

    • Google Search Console

    0 say Wikibooks is a good alternative to Duolingo 0 say Wikibooks isn’t a real alternative to Duolingo

    Comment
    Close cos 0.889
11. 11
    Alura alura.com.br Top 10K Portuguese

    Black November Alura: matricule-se com até 50% de desconto!

    A Black November da Alura chegou! Aproveite o maior desconto do ano para se matricular e avançar na sua carreira tech!

    • Google Search Console
    • Google Tag Manager
    • Microsoft 365
    • OpenAI
    • Adobe
    • Cloudflare

    0 say Alura is a good alternative to Duolingo 0 say Alura isn’t a real alternative to Duolingo

    Comment
    Close cos 0.886
12. 12
    WordReference.com wordreference.com Top 10K

    online dictionary

    • Google Search Console
    • Google Workspace
    • Amazon Route 53

    0 say WordReference.com is a good alternative to Duolingo 0 say WordReference.com isn’t a real alternative to Duolingo

    Comment
    Close cos 0.886
13. 13
    Brilliant brilliant.org English

    Brilliant | Your Personal Tutor for Math and Coding

    Visual, interactive tutoring in math and coding, from 5th grade through college. Master concepts in algebra, calculus, Python, computer science, and more.

    • Apple Business
    • Google Search Console
    • Google Tag Manager
    • Google Workspace
    • OneTrust
    • OpenAI

    0 say Brilliant is a good alternative to Duolingo 0 say Brilliant isn’t a real alternative to Duolingo

    Comment
    Close cos 0.884
14. 14
    Moodle moodle.org Top 10K

    Moodle challenge

    e-learning platform

    • Amazon SES
    • Google Search Console
    • Google Workspace
    • Salesforce
    • Cloudflare
    • Cloudflare DNS

    0 say Moodle is a good alternative to Duolingo 0 say Moodle isn’t a real alternative to Duolingo

    Comment
    Close cos 0.883
15. 15
    Jusbrasil jusbrasil.com.br Top 10K Portuguese

    Jusbrasil

    Brazilian company

    • Apple Business
    • Google Search Console
    • Google Workspace
    • Microsoft 365
    • OpenAI
    • Atlassian

    0 say Jusbrasil is a good alternative to Duolingo 0 say Jusbrasil isn’t a real alternative to Duolingo

    Comment
    Close cos 0.884
16. 16
    Codecademy codecademy.com Top 10K English

    Learn to Code - for Free | Codecademy

    Learn the technical skills to get the job you want. Join over 50 million people choosing Codecademy to start a new career (or advance in their current one).

    • Apple Business
    • Google Search Console
    • Google Workspace
    • Microsoft 365
    • OpenAI
    • Zendesk

    0 say Codecademy is a good alternative to Duolingo 0 say Codecademy isn’t a real alternative to Duolingo

    Comment
    Close cos 0.880
17. 17
    ClassDojo classdojo.com Top 10K English

    ClassDojo | ClassDojo

    ClassDojo connects K-12 teachers with families. Free classroom communication, behavior tracking, and student portfolios. Used in 95% of US schools.

    • Apple Business
    • Amazon CloudFront
    • Google Search Console
    • Google Workspace
    • Microsoft 365
    • OneTrust

    0 say ClassDojo is a good alternative to Duolingo 0 say ClassDojo isn’t a real alternative to Duolingo

    Comment
    Close cos 0.875
18. 18
    GeeksforGeeks geeksforgeeks.org Top 10K English

    GeeksforGeeks | Your All-in-One Learning Portal

    Your All-in-One Learning Portal. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.

    • Amazon SES
    • Amazon CloudFront
    • Google Search Console
    • Google Tag Manager
    • Google Workspace
    • Amazon Route 53

    0 say GeeksforGeeks is a good alternative to Duolingo 0 say GeeksforGeeks isn’t a real alternative to Duolingo

    Comment
    Close cos 0.880
19. 19
    Youdao youdao.com Top 10K

    网易有道

    网易有道是中国领先的智能学习公司，致力于提供100%以用户为导向的学习产品和服务。有道成立于2006年，打造了一系列深受用户喜欢的口碑型大众学习工具产品，例如：网易有道词典、有道精品课、有道翻译官、有道云笔记等。2014年，网易有道宣布正式进军互联网教育行业。2018年4月，网易有道完成首次战略融资，投后估值11.2亿美金，跻身独角兽阵营。2019年10月，网易有道成功登陆纽交所，股票代码为“DAO”，成为网易集团首个独立上市的公司。

    • Nuxt
    • Vue.js

    0 say Youdao is a good alternative to Duolingo 0 say Youdao isn’t a real alternative to Duolingo

    Comment
    Close cos 0.878
20. 20
    ad-contents.jp Top 10K Japanese

    ゲームコンテンツ一覧

    ゲームコンテンツ一覧ページです。毎日楽しめる無料かんたんゲームが盛りだくさん。

    • Amazon Route 53
    • Apache HTTP Server
    • PHP

    0 say ad-contents.jp is a good alternative to Duolingo 0 say ad-contents.jp isn’t a real alternative to Duolingo

    Comment
    Close cos 0.876

Ranked by score: the cosine similarity of each site’s vector to duolingo.com’s, less a small penalty for generic sites that are close to everything. Highlighted technologies are ones Duolingo uses too. Votes and comments come from visitors and don’t change the ranking.

04 · Fingerprints

Technology

What Duolingo is built with, and what its closest competitors use, from its homepage’s code and its DNS records.