Every course, exam and certificate here works in both Bangla and English. Switch whenever you like — your progress follows you across.
No card, no trial countdown. Most of the catalogue is open — finish one course and decide for yourself whether the rest is worth it.
Our practice exams report back topic by topic, so you finish knowing which chapter to reopen — not just how many you got wrong.
A course that moves in order instead of jumping around, and practice exams to check where you actually stand before the day arrives.
General knowledge, mathematics and science — the sections that decide most recruitment papers, each with practice sets to match.
Ranked by how many learners are actually enrolled — not by what we would like you to buy.
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From strong SQL to production data work for AI: window functions, design, transactions, performance, security, pandas, ETL, ML-ready datasets and vector search — a tested bilingual tutorial, videos and three exams.
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SQL from zero for AI and data work: query, filter, change and summarise data, and combine tables with joins — a tested bilingual tutorial, hand-picked videos and three exams.
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The maths every AI engineer actually uses — vectors and embeddings, gradient descent, statistics, probability and evaluation metrics — taught with NumPy and great videos.
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The programming foundation for every AI career: learn Python from scratch, work with data in NumPy and pandas, and call LLMs from your own code.
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Understand what AI really is, how ChatGPT-style models produce answers, and how to use them without being fooled — the starting point for every AI career path.
From school syllabus to backend engineering, and the admission and job exams in between.
Three steps, and you can stop after the first one without paying anything.
Pick a course
browse by subject, or start with a free one, in Bangla or English.
Learn at your own pace
lessons remember where you stopped, on any device.
Prove it
pass the exam and get a certificate anyone can verify online.
Whole courses, not trials. No card, no countdown — finish one and judge the rest by it.
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From strong SQL to production data work for AI: window functions, design, transactions, performance, security, pandas, ETL, ML-ready datasets and vector search — a tested bilingual tutorial, videos and three exams.
MixedFreeby BitByte
SQL from zero for AI and data work: query, filter, change and summarise data, and combine tables with joins — a tested bilingual tutorial, hand-picked videos and three exams.
MixedFreeby BitByte
The maths every AI engineer actually uses — vectors and embeddings, gradient descent, statistics, probability and evaluation metrics — taught with NumPy and great videos.
Practice exams that report back topic by topic, so you finish knowing which chapter to reopen.
15 hard questions across the advanced tutorial: analytics SQL, design, performance, pipelines, ML-ready data and SQL for AI apps.
10 questions on indexes, EXPLAIN, views and triggers, SQL injection, Python database access, pandas and data cleaning.
10 questions on CTEs, window functions, analytics patterns, normalization and transactions.
Learners preparing for admission tests, bank jobs and their first developer role.
I stopped guessing what to revise. The practice exam broke my score down by topic, and the two chapters it flagged were exactly the ones I had been avoiding.
Nusrat JahanAdmission candidate, DhakaThe JavaScript course was free, so I finished it before deciding to pay for anything. That is the order I wish every course site worked in.
Rafiqul IslamJunior developer, ChattogramReading the lesson in Bangla and the questions in English turned out to be the fastest way through for me. Switching language never lost my progress.
Tanzila AkterBCS candidate, RajshahiI could show the certificate link in an interview and the panel checked it on their own phone. That mattered more than the certificate itself.
Shahriar KabirCareer switcher, SylhetI set the same practice exam for a whole batch and got the topic breakdown for all of them. It changed what I taught the following week.
Mahmuda RahmanCollege teacher, KhulnaLessons open on my phone during the commute and pick up on the laptop at night, at the exact minute I stopped. That is the only reason I finished.
Imran HossainBank job aspirant, BoguraThe questions worth answering honestly — including what a certificate from here is not.
No. A large part of the catalogue is free, and every free course is the whole course — not a preview that stops at lesson three. Create an account, finish one, and decide about the paid ones afterwards.
Yes. Courses, exams and certificates all work in Bangla and English, and you can switch language at any point. Your progress, enrolments and results follow you across — switching is a display choice, not a new account.
Unless the course page says otherwise, enrolment does not expire — you can come back to a finished course to look something up a year later. Where a course does have an access window, it is stated on its own page before you pay, never afterwards.
It carries a verification code, and anyone — an employer, an admissions office — can check it on this site without an account. It is evidence that you finished this course and passed its assessment. It is not a government or university qualification, and we do not present it as one.
A score, and then the part that is actually useful: a topic-by-topic breakdown, the questions you got wrong with explanations, and where you stand against everyone else who took it. A number on its own does not tell you what to study next.
Yes. Lessons, exams and your dashboard all work on a phone, and progress is saved on the server rather than in the browser — so you can start a lesson on the bus and finish it on a laptop at the point you stopped.
That is the whole thing. Start with a free one — everything else can be decided afterwards.
Browse the catalogueStudy notes, exam breakdowns, and what we are building here.
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