Open Lingo
Open Lingo: A focused, free web app for deep study of Japanese, Korean, and Spanish. Ranked #215 of 276 in Language Learning Apps by our editors (3.0/10); pricing: Free plan; best for web learners studying a few languages deeply.
At a glance
- Editor score3.0 / 10
- PricingFree plan
- Best forWeb learners studying a few languages deeply
- Free planYes
- Paid fromFree
- Facts checked23 Sep 2026
Where it wins
- Structured courses combine grammar, audio, writing, and pronunciation.
- FSRS-6 separates recognition and recall for personalized review.
- Open-source, MIT-licensed software can be self-hosted.
Where it doesn't
- Coverage is limited to Japanese, Korean, and Spanish.
- The current product is web-only; the native mobile app is in progress.
- Spanish is live but described as early.
Our verdict on Open Lingo
Open Lingo is a free, open-source language-learning web app for learners who want structured study in Japanese, Korean, or Spanish. Its hand-authored courses combine lesson content with spaced-repetition reviews, speech recognition, handwriting practice, grammar drills, recorded audio, and an adaptive placement test. The product is especially suited to learners who prefer a focused curriculum over a broad language catalog and who want access to MIT-licensed software that can be self-hosted.
The Free plan costs 0 and includes structured courses, spaced-repetition reviews, speech recognition, handwriting practice, grammar drills, and the MIT-licensed source. Open Lingo’s standout learning depth comes from how it handles practice: FSRS-6 scheduling supports personalized review, while separate recognition and recall tracking distinguishes understanding a word from producing it. Speech recognition supports pronunciation practice, animated stroke order and handwriting verification support writing, and grammar drills cover particles and conjugation. Together, these features make the app more than a basic flashcard tool for learners working through a defined course sequence.
The main trade-off is focus. Open Lingo offers three languages and runs on the web, so it is a better fit for concentrated study than for learners seeking a large multilingual platform or a current native mobile experience. Spanish is described as live and early, which may matter to learners looking for a more mature course. Choose Open Lingo if free access, open-source software, structured learning, and detailed review mechanics matter most. Choose an alternative if you need broader language coverage or a native mobile app today.
Your product? Our editors can test Open Lingo in depth and publish a review, labelled as paid · from $149/mo →
Open Lingo pricing
Open Lingo fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Offline lessons | Not verified |
| Speech practice | Yes |
| Placement test | Yes |
| Personalized review | Yes |
| Mobile apps | No |
| Languages offered | 3 |
| Deployment | Cloud, Browser extension |
| Platforms | Web |
| Support | Community |
| Built for | Solo (editorial estimate) |
| Pricing | Free plan |
| Website | openlingoapp.com |
| Facts checked | 23 Sep 2026 |
Alternatives to Open Lingo
- DuolingoA strong free starting point with broad practice, personalization, and mobile access.9.4
- BusuuA broad language-learning app combining structured lessons with human and AI feedback.9.2
- BabbelA guided paid course with practice across listening, speaking, writing, and grammar.9.1
See all Open Lingo alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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