🇹🇭 The best courses for learning Thai

Foreign Service Institute, Peace Corps and DLI materials — full textbooks plus hundreds of hours of audio — are public domain and hosted here for free across dozens of languages. The depth is extraordinary and the FSI Basic courses take diplomats to professional working proficiency, which no consumer app attempts. The recordings are from the 1960s–80s, the drills are relentless, and some vocabulary is dated (Cold War era), so they suit disciplined self-studiers, not casual learners.

Mihalis Eleftheriou records real lessons with a real student and walks you through constructing the language yourself using cognates and logic — Spanish, French, Italian, German, Greek, Turkish, Arabic and Swahili are covered. Completely free, no ads, no sign-up, funded by donations. The Spanish course in particular is one of the most recommended free resources anywhere; the trade-off is small vocabulary and no reading or writing practice.

Covers 14 languages along an explicit CEFR path, and its best feature is the community exchange: you submit short writing or speaking exercises and real native speakers correct them, free of charge, in exchange for you correcting theirs. The free tier is limited to core lessons; Premium unlocks grammar, offline and the full path. A solid Babbel alternative if you specifically want writing practice with human feedback.

Mark Pentleton teaches a genuine student while you listen in, across French, Spanish, German, Italian, Chinese, Swedish, Portuguese, Japanese and Gaelic. The podcast seasons are free on any podcast app and are structured as a real curriculum rather than scattered episodes; the Academy sells premium lesson notes, video and bonus audio. Ideal commuting material for beginners through B1, and the Spanish and French series are the strongest.

Kruu Mod has been publishing free lessons since 2013 and is still posting in 2026, covering everyday phrasing, question forms, polite particles and the vocabulary you actually need with a partner, family or landlord. The English explanations make it accessible from day one, which comprehensible-input channels are not. Paid courses and books exist on the site; the free YouTube library is the main draw, and it favours useful phrases over systematic grammar.

Grace publishes a free ten-day absolute-beginner mini course, a beginner podcast, subtitled YouTube lessons and a free phrase ebook, then sells structured courses covering beginner-to-conversational Thai, practical reading and an advanced tier, plus a graded reader and vocabulary apps. The free layer is substantial enough to be worth using on its own. Materials are spread across several platforms, so it takes a moment to work out what belongs to what.

Hundreds of audio and video lessons built around short dialogues that get broken down in English, with lesson notes, a word bank and spaced-repetition flashcards; a free account gives limited access and paid tiers run roughly $4–25 a month depending on plan length. It is a good structured listening supplement, especially in the beginner range. Treat it as one input among several — the lessons over-explain, and the constant discount emails are the price of admission.

Each course is ~100 short bilingual dialogues with native audio: you passively absorb for months, then start an 'active wave' translating back into the target language. Books run around €30 (e-courses ~€50) across 70+ languages, and the method is a long-standing favourite among polyglots for reaching real reading fluency. Caveats: many courses are only published from French, the humour is dated, and it demands daily discipline with no gamification to carry you.

AUA is where J. Marvin Brown developed Automatic Language Growth, the approach of absorbing hundreds of hours of Thai before speaking, and it still runs Thai courses at branches including Bangkok and Chiang Mai. For people living in Thailand it remains the best-known in-person option, and its alumni are the reason input-first learning has such a following in Thai. Course formats have shifted over the years, so confirm directly whether the current classes follow the ALG model and ask about hours and fees — neither is published online.

Subscription-only after a handful of free intro lessons, typically $10–15/month with big discounts on annual plans. Lessons are short, dialogue-first and explain grammar properly, which makes it a much more serious beginner course than Duolingo. It covers only 13 languages and effectively stops around B1, so it is a stepping stone rather than a destination.

Over 70 languages, each a step-by-step beginner course written by an experienced teacher, and crucially all the audio is free to download from the companion site even if you find the book secondhand. Slightly more academic and grammar-forward than Teach Yourself, which some learners prefer. Like any book series the individual titles differ in quality; the less common languages are often the only decent course in existence.

Stuart Jay Raj's 63-lesson course explains why Thai works the way it does: the Indic logic behind the script, how consonant classes and tone marks interact, and physical techniques for producing sounds English speakers mangle. At $9.99 a month or $29.99 for a three-month bundle (the print book is around $39) it is cheap for the insight density. It is idiosyncratic and theory-heavy — brilliant for analytical learners, frustrating if you just want phrases.

One of the more consistently recommended Bangkok schools, offering group and private Thai courses across levels, with an in-house curriculum and the education-visa paperwork that long-term learners in Thailand need. Small classes and a clear level ladder make it a reasonable default if you are moving to Bangkok. It is a commercial school with commercial pricing, and quality still depends on which teacher you draw.

You listen to and repeat thousands of native-recorded sentences on a spaced schedule, which builds fluent output patterns without explicit grammar study. It covers 60+ languages and keeps nine minority languages (Catalan, Welsh, Taiwanese, Kurdish and others) permanently free as a preservation effort. It is expensive at roughly $20–40/month, and the repetition is monotonous — most reviewers call it effective but overpriced, so try the 7-day trial first.

Brett Whiteside's course drills the writing system and tone rules first, then builds spoken Thai on top, which fixes the classic expat problem of years of transliterated Thai that natives struggle to understand. Five lessons are free by email, so you can judge the teaching style before paying for the full Inner Circle program. It is one of the pricier self-study options and the sales pages are heavy on testimonials — the underlying pedagogy, not the marketing, is the reason to consider it.

Lessons build outward from real conversations with colour-coded literal translations and cultural notes, and the catalogue includes endangered and indigenous languages nobody else covers. Retail pricing starts around $10/month, but a very large number of public libraries and universities give patrons free access — check yours before paying. Content depth per language is modest, so it suits travellers and early learners more than people pushing toward B2.

You sit in on a recorded lesson with two students and build sentences aloud alongside them, with no writing, homework or memorisation; 19 languages are available. It is remarkably good at making the core grammar of Romance languages click in a few hours. Vocabulary coverage is small, the recordings are old, and the courses after Michel Thomas's death are taught by other teachers with mixed results — treat it as a fast on-ramp, not a course of study.

Yuki and Miki's lesson packs run from Creamy Coconut (beginner) through Sweet Green (intermediate) to Spicy Red (advanced), teaching the colloquial Thai textbooks avoid, with transcripts and detailed vocabulary notes. Seven complete sample lessons are free, so you can judge before buying, and the humour makes repeat listening bearable. The three courses are finished rather than ongoing, and you buy lessons in packs rather than subscribing.

Thirty-minute audio lessons force you to produce sentences out loud before you see anything written, which builds unusually good accent and recall. Subscriptions run about $15–21/month (all-access covers 50+ languages), and older courses are often available through public libraries. It is slow and vocabulary-light by design, so pair it with reading — but for commute or walking time it is the best use of otherwise dead hours.

Arthit Juyaso's book takes the 44 consonants, the vowel system and the tone rules in a deliberate order with mnemonics and daily practice, and most learners really do come out reading basic Thai in a couple of weeks. Reading Thai early is the single highest-leverage thing you can do in this language, because transliteration systems disagree with each other and hide tone. It is a paid book with a workbook feel — you have to do the exercises, and it teaches decoding rather than vocabulary.

The 'Complete' books are proper structured courses with dialogues, graded exercises and downloadable audio, and the range covers languages no app touches. Quality varies noticeably by title and author, so check reviews for your specific language before buying rather than trusting the series name. Their graded readers and 'Script Hacking' alphabet guides are also worth knowing about for non-Latin scripts.