Programming & DSA

Best coding practice platforms in 2027 for interviews and contests

Coding practice platforms as of 11 November 2026: LeetCode (4110 problems), HackerRank, Codeforces, CodeChef, AtCoder, CSES and four more, with limits.

Data Analytics

Best BI and dashboard tools in 2027: Power BI, Tableau, free ones

Best BI tools as of 11 November 2026: Power BI, Tableau, Data Studio (formerly Looker Studio), Metabase and six more, with free routes and one limit each.

Data Analytics

Best Python libraries for data analysis in 2027: pandas to DuckDB

Python libraries for data analysis as of 11 November 2026: pandas 3.1.1, Polars 2.1.0, DuckDB 2.0.0 and seven more, with install lines and tested code.

Finance

Best AI tools for finance professionals in 2027

Ten AI tools for finance professionals as of 11 November 2026, from Copilot in Excel to Zoho Books and Bloomberg, with what each does and its limits.

Artificial Intelligence

Best vector databases for RAG in 2027: pgvector, Qdrant and more

Ten vector databases for RAG as of 11 November 2026: pgvector, Qdrant, Pinecone, Weaviate, Chroma, Milvus and more, with licences, index types and limits.

Artificial Intelligence

How to run LLMs locally in 2027: Ollama, LM Studio and llama.cpp

Run an LLM locally with Ollama, LM Studio or llama.cpp: what GGUF is, how model size maps to memory, first-run commands and limits, as of 11 November 2026.

Artificial Intelligence

Best AI image generators in 2027 compared by use case

10 AI image generators for 2027 compared by use case, with each vendor's stated commercial terms and limits, and how to check if an image is AI-made.

Artificial Intelligence

Best AI video generation tools in 2027 and what each can do

10 AI video generator and editing tools for 2027, grouped by job, with clip length where stated, labelling and consent rules, and Sora and Veo status.

Artificial Intelligence

Best AI presentation and design tools in 2027

10 AI presentation and design tools for 2027, from Gamma to Figma Make, with what each does, its export or access limit, and a check before you present.

Artificial Intelligence

Best AI research tools for students and researchers in 2027

10 AI research tools for students, from Perplexity to Google Scholar Labs, with each one's limit and a tested script that checks citations by DOI.

Startups

How to validate a startup idea: a step-by-step method before you build

How to validate a startup idea in 6 steps: problem interviews, willingness to pay, a landing-page test and a concierge test, with the pass mark set first.

Finance

Financial modelling basics: the three-statement model explained

Financial modelling basics: how the income statement, balance sheet and cash flow link, with a worked 2-year model in Rs lakh that balances and a DCF.

Data Analytics

Excel formulas every professional should know: XLOOKUP, SUMIFS

15 Excel formulas by job, from XLOOKUP and SUMIFS to FILTER and LET, with syntax, a worked example and the Excel versions that have each one.

Programming & DSA

How to build a standout GitHub profile README for 2027

How to build a GitHub profile README: the username repository rule, a 19-line sample, six pinned slots and what GitHub's own career guide says to include.

Student Corner

Best free online courses with certificates in 2027

Free online courses with certificates compared: which certificates are free, which need a paid exam and how Indian employers see them, as of November 2026.

Software Engineering

AWS vs Azure vs Google Cloud: which cloud to learn first in 2027

AWS vs Azure vs Google Cloud for beginners: entry certifications, matching services, cloud roles and Q3 2026 market share, to help pick a first cloud.

Software Engineering

Docker for beginners: images, containers and a first deployment

Docker for beginners: images vs containers, a 5-line Dockerfile for a Python app, key commands, ports, volumes and Compose, taken from Docker's own docs.

Software Engineering

Microservices vs monolith: key differences and when to choose each

Microservices vs monolith compared on 6 criteria, including deployment, scaling and data, plus the modular monolith middle path and named write-ups.

Software Engineering

REST API explained: methods, status codes and design basics

A REST API exposes resources at URLs and uses HTTP methods and status codes. See PUT vs PATCH, 401 vs 403 and a tested example, with RFC 9110 definitions.

Software Engineering

Full stack developer roadmap for 2027: what to learn and in what order

A full stack developer roadmap in nine stages, from HTML and JavaScript to APIs, databases, testing and deployment, with Stack Overflow 2026 survey data.

Software Engineering

Flutter vs React Native vs native: which mobile stack to learn in 2027

Flutter vs React Native vs native compared on language, rendering and iOS build needs, with releases as of 7 November 2026 and a first pick for beginners.

Programming & DSA

Coder vs programmer vs developer vs software engineer

Coder vs programmer vs developer vs software engineer compared using US O*NET and BLS definitions, India's NCO 2015 and Naukri Campus, with CV advice.

Programming & DSA

Sliding window and two pointers: problem patterns with examples

Sliding window and two pointers explained with 6 tested Python problems, when each pattern applies, and how both cut O(n^2) brute force to O(n).

Programming & DSA

Heap data structure and priority queue explained with examples

Heap data structure and priority queue explained with a 6-item trace, heapify in O(n), heap sort, and the Python, Java and C++ priority queue APIs.

Programming & DSA

Binary tree traversal: inorder, preorder, postorder and level order

Binary tree traversal on one 9-node example: inorder, preorder, postorder and level order, with recursive and iterative Python code and complexity.