Simple &amp; Easy Programming Learning

2 🔧 🔥 HOT

JSON Formatter

Format, validate & explore JSON — 100% private

654K users

3 🔍

Regex Tester

Live match highlighting, groups & replace mode

412K users

4 🔐

Base64 Encoder

Encode & decode Base64 — supports file upload

345K users

5 📱 ⭐ ESSENTIAL

QR Generator

Generate QR codes for URL, WiFi, email, SMS & more

287K users

6 🎨 ⭐ ESSENTIAL

Color Picker

HEX, RGB, HSL, CMYK conversions & shade palettes

265K users

7 🌐

HTML Formatter

Beautify & validate HTML5 with syntax highlighting

198K users

8 🖌️

CSS Formatter

Beautify, minify & validate CSS instantly

187K users

9 ⚡

JS Formatter

Beautify JavaScript — K&R, Allman, Stroustrup styles

175K users

10 📝 ⭐ ESSENTIAL

Markdown Editor

Write Markdown with live preview & toolbar

143K users

11 📧 ✨ NEW

Email Verifier

Validate email format, MX records & detect disposable

128K users

12 🌍

DNS Lookup

Query A, MX, NS, TXT, CNAME & all DNS record types

110K users

13 🔎

WHOIS Lookup

Domain registration, expiry & ownership information

98K users

14 🛡️ ✨ NEW

Port Scanner

Scan open TCP ports on any host or server

87K users

15 🗄️

SQL Formatter

Format & beautify SQL — MySQL, PostgreSQL & T-SQL

76K users

Zaheer Ahmad • Apr 06 • 4 min read min

Latest Tutorials

Fresh tutorials published regularly — all free for Pakistani students

Gradio Tutorial Build AI Demo Apps in Python 2026

Create interactive AI demos with Gradio — Interface, Blocks, components, sharing with Hugging Face Spaces.

Streamlit Tutorial Build Data Apps with Python 2026

Turn Python scripts into shareable web apps with Streamlit — widgets, charts, state, caching, and deployment.

Zaheer Ahmad • Apr 06 • 5 min read min

Polars Tutorial Fast DataFrame Library for Python 2026

Process data 10x faster with Polars — lazy evaluation, expressions, scan, and migrating from pandas.

Database Replication & High Availability Patterns

Implement database HA — primary/replica replication, failover, read replicas, and sharding patterns.

Graph Databases Neo4j Tutorial & Cypher Query Language

Model and query connected data with Neo4j — nodes, relationships, Cypher queries, and graph algorithms.

ClickHouse Tutorial OLAP Database for Analytics 2026

Analyze billions of rows in seconds with ClickHouse — table engines, MergeTree, aggregations, and real-time data.

DuckDB Tutorial In Process Analytical Database 2026

Run fast analytical queries locally with DuckDB — SQL on CSV/Parquet, pandas integration, and data exploration.

PlanetScale Tutorial Serverless MySQL with Branching

Use PlanetScale for serverless MySQL — database branching, deploy requests, connection pooling, and Prisma.

Supabase Tutorial Open Source Firebase Alternative 2026

Build backends fast with Supabase — PostgreSQL, Auth, Storage, Edge Functions, Realtime, and Row Level Security.

CockroachDB Tutorial Distributed SQL Database 2026

Build globally distributed apps with CockroachDB — multi-region, auto-sharding, and PostgreSQL-compatible SQL.

OpenTelemetry Tutorial Distributed Tracing & Observability

Instrument apps with OpenTelemetry — traces, metrics, logs, exporters to Jaeger/Tempo/Prometheus.

FinOps & Cloud Cost Optimization Reduce AWS/GCP Bills

Optimize cloud spending — right-sizing, reserved instances, spot instances, Cost Explorer, and FinOps practices.

Azure Container Apps & Azure Functions Guide 2026

Run serverless containers and functions on Azure — Container Apps, Functions, Durable Functions, and triggers.

Google Cloud Run Serverless Containers Tutorial

Deploy containerized apps without managing servers using Cloud Run — build, deploy, traffic splitting, secrets.

Pulumi Tutorial Modern Infrastructure as Code 2026

Provision cloud infra with Pulumi using real programming languages — Python, TypeScript, and AWS/GCP/Azure.

AWS Lambda Advanced Layers VPC & Performance Tuning

Go deeper with AWS Lambda — Lambda Layers, VPC access, provisioned concurrency, cold start optimization.

AWS CDK Tutorial Infrastructure as Code with TypeScript

Define AWS infrastructure with code using CDK — stacks, constructs, TypeScript, and deploying to AWS.

Zaheer Ahmad • Apr 04 • 4 min read min

Istio Service Mesh Traffic Management & Observability

Manage microservice traffic with Istio — virtual services, destination rules, mTLS, circuit breaking, and Kiali.

ArgoCD Tutorial GitOps Continuous Delivery for Kubernetes

Implement GitOps with ArgoCD — applications, sync policies, rollbacks, notifications, and multi-cluster setups.

Kubernetes RBAC Secrets & Security Best Practices

Secure Kubernetes clusters — RBAC policies, Secrets encryption, NetworkPolicies, PodSecurity, and scanning.

Kubernetes Helm Package Manager for K8s Applications

Deploy apps with Helm — charts, values.yaml, templates, hooks, repositories, and upgrading releases.

Docker Networking Bridge Host Overlay & Custom Networks

Master Docker networking — bridge, host, none, overlay networks, DNS resolution, and multi-container communication.

Zaheer Ahmad • Apr 04 • 4 min read min

Semantic Versioning & Conventional Commits Guide

Automate releases with semantic versioning and conventional commits — commitlint, release-it, and Changesets.

GitLab CI CD Tutorial Pipelines Runners & Deployment

Build CI/CD pipelines in GitLab — .gitlab-ci.yml, stages, runners, artifacts, environments, and deployments.

GitHub Packages & Container Registry Publish & Use

Publish Docker images and npm packages to GitHub Packages — authentication, tagging, and pulling in workflows.