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 16 • 6 min read min

Latest Tutorials

Fresh tutorials published regularly — all free for Pakistani students

How to Start a Tech Startup in Pakistan 2026 Complete Guide

Launch a tech startup in Pakistan — idea validation, SECP registration, funding (NIC, i2i), tech stack choices, and scaling tips.

Pakistani Tech Community Conferences Meetups & Online Groups 2026

Connect with Pakistan's tech community — conferences, local meetups in Lahore/Karachi/Islamabad, online communities, and open source groups.

HTMX Tutorial Build Dynamic UIs Without JavaScript 2026

Add interactivity without JavaScript frameworks — hx-get, hx-post, hx-swap, hx-trigger, and HTMX patterns.

FastHTML Tutorial Build Web Apps with Pure Python 2026

Build full-stack apps in pure Python — FastHTML components, HTMX integration, database, and deployment.

Webhooks Tutorial Design Secure & Implement Webhooks

Build reliable webhooks — HTTP callbacks, signature verification, retry logic, and processing with queues.

Feature Flags & A/B Testing LaunchDarkly & Unleash Tutorial

Ship safely with feature flags — percentage rollouts, targeting, A/B experiments, and open-source Unleash.

Turborepo & Nx Monorepo Strategies for Large Teams

Scale codebases with monorepos — Turborepo pipelines, Nx affected commands, shared packages, and remote caching.

Multi Factor Authentication MFA TOTP & WebAuthn Implementation

Implement MFA — TOTP with speakeasy/otplib, QR code setup, recovery codes, and WebAuthn as second factor.

NextAuth js Auth js Tutorial Authentication for Next js

Add auth to Next.js — OAuth providers, credentials, JWT sessions, database sessions, and role-based access.

SAML Tutorial Enterprise Single Sign On Integration

Integrate enterprise SSO with SAML — assertions, SP/IdP setup, metadata exchange, and troubleshooting.

Keycloak Tutorial Open Source Identity & Access Management

Manage identity with Keycloak — realms, clients, users, roles, social login, and OIDC/SAML integration.

Passkeys Tutorial Passwordless Authentication Guide 2026

Implement passwordless login with Passkeys — WebAuthn API, registration, authentication, and cross-device sync.

Zaheer Ahmad • Apr 16 • 4 min read min

GraphQL Code Generator TypeScript Types from Schema

Auto-generate TypeScript types and hooks — GraphQL Code Generator, typed document nodes, and React hooks.

Hasura Tutorial Instant GraphQL APIs on PostgreSQL 2026

Generate GraphQL APIs instantly — Hasura Console, permissions, events, remote schemas, and actions.

Zaheer Ahmad • Apr 16 • 4 min read min

Apollo Federation Microservices with Unified GraphQL

Compose a supergraph from multiple GraphQL services — Apollo Federation, subgraphs, entities, and the router.

GraphQL Subscriptions Real Time Data with WebSockets

Stream real-time updates with GraphQL Subscriptions — WebSocket transport, Apollo subscriptions, and PubSub.

SSH Tutorial Secure Remote Access & Tunneling Guide

Use SSH effectively — key pairs, ssh-agent, config file, port forwarding, tunneling, and ProxyJump.

cURL Tutorial HTTP Requests from Command Line Guide

Master cURL — GET, POST, headers, cookies, authentication, file upload, and debugging API endpoints.

Nmap Tutorial Network Scanning & Security Auditing

Scan networks with Nmap — port scanning, service detection, OS fingerprinting, NSE scripts, and automation.

Wireshark Tutorial Network Packet Analysis for Developers

Analyze network traffic with Wireshark — capture filters, display filters, TCP analysis, and HTTP debugging.

Linux Containers Deep Dive cgroups namespaces & OCI

Understand what makes containers work — namespaces, cgroups, overlay filesystems, OCI spec, and runc.

Bash Scripting Advanced Functions Arrays & Error Handling

Level up bash scripts — functions, arrays, associative arrays, trap for errors, getopts, and debugging.

Linux Performance Tuning CPU Memory I/O & Networking

Optimize Linux performance — top/htop, vmstat, iostat, perf, sysctl tuning, and resource limits.

Systemd Tutorial Services Timers & Journal Management

Manage Linux services with systemd — unit files, targets, timers, journalctl, and custom service creation.

Linux Networking iptables firewalld & Network Configuration

Configure Linux networking — interfaces, routing, iptables rules, firewalld zones, and network troubleshooting.