Free online language courses with certificates: what each listed course gives you
The 5 courses on this page split into three groups by what you hold at the end: a free verifiable certificate, a certificate you can buy after a free course, or nothing but the knowledge. Check the group before you enrol.
Free certificate: the freeCodeCamp English certifications
A2 English for Developers Certification and B1 English for Developers Certification are the only listed language courses whose certificate costs nothing. Both are marked Beta by freeCodeCamp, both run in the browser at your own pace, and both publish the certification at a public URL on freecodecamp.org where anyone can check it. The A2 course is built from 105 dialogues in 55 blocks, each followed by a quiz; the B1 course continues with 73 dialogues in 49 blocks. The catch is the audience: the vocabulary is written for software developers, so a general learner will meet stand-up meetings and GitHub troubleshooting rather than travel or family conversation.
Free course, paid certificate: Coursera and Alison
First Step Korean is flagged as free on Coursera, so every lesson is open without payment. A shareable certificate exists as a paid option whose price is not shown until you enrol; financial aid is listed. Diploma in Basic English Grammar on Alison is free to study in full, and the Alison Diploma at the end is an optional paid purchase in digital or printed form. If you do not buy it, you can download a free Learner Record confirming the course you completed and the result you achieved.
No certificate: the Udemy grammar course
FREE English Grammar Course is free to enrol in, but as a free Udemy course it carries no certificate of completion, no instructor Q&A and may show advertisements.
Learn Korean online free with First Step Korean from Yonsei University
The only listed course that teaches a language other than English is Yonsei University's elementary Korean course, taught in English on Coursera. After a short introduction it works through five lessons: the Korean alphabet, greetings and introducing yourself, family, time and date, and daily life. Each lesson is built from dialogues, pronunciation practice, vocabulary, grammar, quizzes and role-plays, so reading, writing, listening and speaking all get attention.
Coursera schedules it at two weeks of 10 hours a week on a flexible timetable, at beginner level with no prior experience required. By the end, the course page says, you should read and write Hangul, use basic everyday expressions and know something of Korean culture. If you already read the alphabet, it will move too slowly for you.
Which free English grammar course online fits you
The remaining courses are all English courses, and they overlap less than their titles suggest. The Alison diploma is the fullest grammar treatment: parts of speech and sentence structure, then most of its time on verbs, including how the present and past tenses are formed, how the passive is built and how easily confused tenses differ, before a final strand on punctuation. Alison rates it beginner level and offers it in English and Spanish; it suits learners who understand basic sentences but still make tense and punctuation errors in writing.
The Udemy course covers the parts of speech and the essential English verbs across four sections and 21 video lectures, in about 2 hours. The lectures are in English only, so you need at least a beginner level to follow, and the instructor names IELTS and TOEFL candidates among the intended audience. It is a grammar primer, not a conversation or pronunciation class.
The freeCodeCamp A2 and B1 certifications teach grammar inside workplace dialogues rather than as rules: the A2 course covers greetings, describing your workday, your project and your background; the B1 course adds the Present Perfect, future forms, conditionals, modal verbs and reported speech, plus giving feedback and disagreeing. Both are aligned to CEFR levels, which helps if you need to describe your English on a CV.
How long the listed language courses take
Only the Coursera and Udemy courses carry a stated length, given above. Alison shows its duration as a range on the course page rather than a single figure, so none is stored here, and freeCodeCamp publishes no hour estimate; with 105 and 73 dialogues respectively, expect the English for Developers courses to take longer than a short video course.
None of the listed courses imposes a deadline. The Coursera course runs on a flexible timetable, Alison sets no time limit for completing a course, freeCodeCamp is self-paced, and Udemy's free courses have no trial period.
How to learn languages online free beyond this page
This hub is short because most free language material on the web is either app-based, which this site does not list as a course, or a first-module preview that is not free in full. If English is your target, the English courses hub lists every English record on the site. Learners who want to write better after a grammar course can continue on the writing hub, and older learners taking up a language as a sustained challenge will find picks on the courses for seniors page. The free certifications hub lists every course on the site with a free certificate, including the two freeCodeCamp English certifications.