Learn properly
Work through each lesson in order. Your progress is saved on the server, the time you put in is checked rather than assumed, and the certificate you finish with carries a signature anyone can verify.
30 courses
Beginner · Computer Science
A free, deep, hands-on Python course — the language the industry actually runs on
Beginner · Computer Science
A free, end-to-end introduction to how programs actually work
Intermediate · Computer Science
A free, deep, hands-on C course — the language underneath almost everything else
Beginner · Career
Three hours from pasted data to a defensible tracker — formulas, charts and the clean-up pass that fixes other people's exports
Beginner · Mathematics
The Year-1 maths every branch shares — limits and series, optimisation, integration, matrices and eigenvalues, taught with the exam shortcuts that save minutes
Intermediate · Computer Science
Processes, scheduling, concurrency, deadlock, memory, paging, virtual memory and file systems — exam + interview core
Beginner · AI & Data Science
Forty lessons from your first print() to a shipped end-to-end notebook — Python, NumPy, pandas, honest charts, core statistics and your first scikit-learn models
Beginner · Web Development
HTML, modern CSS, JavaScript, forms, APIs and performance — the frontend stack every product team hires for
Beginner · AI & Data Science
From "what is AI" to a toolkit you actually run — how the models work, how to prompt them, how to verify what comes back, and how to keep your name on work you can defend
Beginner · Career
Clear the OA round - the highest-frequency quant and reasoning topics from TCS, Infosys, Wipro and Capgemini, taught with the shortcuts that save minutes
Beginner · Electrical Engineering
DC circuits, network theorems, AC fundamentals and machines — the universal first-year subject, exam-ready
Intermediate · AI & Data Science
Architecture, API engineering, UX, context, tools, extraction, evaluation, safety and cost — forty lessons to shipping an LLM feature that survives production
Intermediate · Computer Science
OSI to TCP/IP, subnetting, TCP internals, DNS/HTTP/DHCP, TLS security and modern delivery — exam + interview core
Intermediate · Computer Science
ER models, SQL, normalization, transactions, concurrency control and crash recovery — exam + interview core
Advanced · AI & Data Science
Forty lessons from the perceptron to shipped transformers — backprop by hand, attention arithmetic, LLM training pipelines, PyTorch debugging, and a capstone you can defend line by line
Beginner · Electronics
Number systems, Boolean algebra, K-maps, combinational and sequential circuits — the ECE exam and Viva foundation
Intermediate · Mechanical
Fluid statics, Bernoulli, flow measurement, momentum forces, pipe losses, dimensional analysis and open-channel flow — ME exam + interview core
Intermediate · AI & Data Science
Forty deep lessons from generative foundations to a production GenAI spec — mechanics, models, reliability, cost, applied pipelines, safety and compliance
Beginner · Tools
From first commit to confident collaboration — snapshots, branching, PRs, hooks and disaster recovery
Beginner · Tools
Navigate the filesystem, filter text like a pro, manage processes and write your first real bash scripts
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Every TieEdu course is a fixed sequence of modules and lessons. Nothing is unlocked out of order, so a lesson you have reached is a lesson whose prerequisites you have already met. Progress is recorded on the server as you read or watch, which is why it survives a cleared browser and a new phone.
Ratings on this page come from learners who finished the course and submitted feedback — an unrated course shows no rating at all rather than a made-up one. Learner counts are enrolment records, not impressions. The same rule governs completion and XP: the server credits time at real-time speed and caps how fast a lesson can be marked done.
25 of these courses are free to start. Finishing any of them issues a certificate signed by TieEdu, and its serial can be checked by anyone at tieedu.com/verify without an account.
Use the filters to narrow the list by beginner, intermediate, advanced level and by topic — currently free, placement, interview, beginner, career, ai, cse, data-structures, among others.