# Rajesh Praharaj

> Practical insights on AI, large language models, prompt engineering, software architecture, and free AI tools for builders.

Every link below points to the Markdown version of a page (the page URL followed by `index.md`).
Machine-readable indexes: [articles.json](https://rajeshpraharaj.com/api/public/v1/articles.json), [tools.json](https://rajeshpraharaj.com/api/public/v1/tools.json). MCP server: https://rajeshpraharaj.com/mcp. Full text of every page: [llms-full.txt](https://rajeshpraharaj.com/llms-full.txt).

## Tech Articles: MCP Library

- [Introduction to MCP: The Universal Connector for AI Assistants](https://rajeshpraharaj.com/tech-articles/mcp-introduction/index.md): What is Model Context Protocol (MCP)? Learn how this open protocol connects AI assistants to external tools and APIs.
- [How to Install and Configure MCP Servers: Setup Guide](https://rajeshpraharaj.com/tech-articles/mcp-installation-configuration/index.md): Step-by-step guide to installing MCP servers for Claude Desktop, Cursor, and VS Code. Includes troubleshooting and examples.
- [Building Your First MCP Server: Developer Tutorial](https://rajeshpraharaj.com/tech-articles/mcp-build-server/index.md): Learn how to build a custom MCP server from scratch. Step-by-step tutorial with TypeScript and Python examples. Covers tools, resources, prompts, and testing.
- [GitHub MCP Server: AI-Powered Repository Management](https://rajeshpraharaj.com/tech-articles/mcp-github/index.md): Master GitHub MCP Server. Connect Claude or Cursor to GitHub for managing issues, PRs, and code with natural language.
- [Playwright MCP Server: AI-Powered Browser Automation Guide](https://rajeshpraharaj.com/tech-articles/mcp-playwright/index.md): Master browser automation with Playwright MCP. Give AI the power to navigate websites, fill forms, and run automated tests.
- [Filesystem MCP Server: Give AI Secure Access to Your Files](https://rajeshpraharaj.com/tech-articles/mcp-filesystem/index.md): Give AI assistants secure access to local files with Filesystem MCP Server. Complete setup guide with security best practices.
- [PostgreSQL MCP Server: AI-Powered Database Queries](https://rajeshpraharaj.com/tech-articles/mcp-postgresql/index.md): Connect PostgreSQL to AI assistants. Learn how to query databases, explore schemas, and analyze data using natural language with Claude, Cursor, and more.
- [Notion MCP Server: Manage Your Workspace with AI](https://rajeshpraharaj.com/tech-articles/mcp-notion/index.md): Connect Notion to AI assistants. Learn how to search pages, query databases, create content, and automate workspace management using natural language.
- [Git MCP Server: AI-Powered Local Version Control](https://rajeshpraharaj.com/tech-articles/mcp-git/index.md): Give AI access to your local Git repositories. View status, diffs, logs, blame, and understand your codebase history with natural language commands.
- [Memory MCP Server: Persistent Knowledge for AI](https://rajeshpraharaj.com/tech-articles/mcp-memory/index.md): Learn how to give AI assistants persistent memory using the Memory MCP Server. Build knowledge graphs, remember context, and create smarter AI interactions.
- [Slack MCP Server: AI-Powered Team Communication](https://rajeshpraharaj.com/tech-articles/mcp-slack/index.md): Connect Slack to AI assistants. Send messages, search conversations, manage channels, and automate team communication with natural language.
- [Fetch MCP Server: Web Content Retrieval for AI](https://rajeshpraharaj.com/tech-articles/mcp-fetch/index.md): Enable AI to fetch and read web content. Learn how to retrieve documentation, articles, and API responses using the Fetch MCP Server.
- [Firecrawl MCP Server: Deep Website Crawling for AI](https://rajeshpraharaj.com/tech-articles/mcp-firecrawl/index.md): Crawl and extract structured data from entire websites. Learn how to use Firecrawl MCP for comprehensive web scraping, content extraction, and site analysis.
- [AWS MCP Servers: Cloud Infrastructure Management with AI](https://rajeshpraharaj.com/tech-articles/mcp-aws/index.md): Manage AWS infrastructure using AI. Learn how to query S3, manage EC2, monitor CloudWatch, and automate cloud operations with AWS MCP servers.
- [Cloudflare MCP Server: Edge Infrastructure Management with AI](https://rajeshpraharaj.com/tech-articles/mcp-cloudflare/index.md): Manage Cloudflare infrastructure using AI. Control DNS, Workers, R2 storage, and edge settings with natural language commands.
- [Sentry MCP Server: AI-Powered Error Monitoring and Debugging](https://rajeshpraharaj.com/tech-articles/mcp-sentry/index.md): Monitor and debug application errors with AI. Learn how to analyze Sentry issues, track performance, and resolve bugs using natural language.
- [MongoDB MCP Server: AI-Powered NoSQL Database Queries](https://rajeshpraharaj.com/tech-articles/mcp-mongodb/index.md): Query and manage MongoDB databases using natural language. Learn how to explore collections, aggregate data, and analyze documents with AI assistance.
- [MCP Security Best Practices: Protecting Your AI Integrations](https://rajeshpraharaj.com/tech-articles/mcp-security/index.md): Security guide for MCP servers. Learn to secure credentials, manage permissions, and protect sensitive data in AI workflows.
- [Combining Multiple MCPs: Build Powerful AI Workflows](https://rajeshpraharaj.com/tech-articles/mcp-combinations/index.md): Learn how to combine multiple MCP servers for powerful AI automations. Create workflows that connect GitHub, Slack, databases, and more.
- [Building Advanced MCP Servers: Custom Integrations](https://rajeshpraharaj.com/tech-articles/mcp-advanced-servers/index.md): Go beyond basics to build production-ready MCP servers. Learn advanced patterns, error handling, streaming, authentication, and publishing to the MCP ecosystem.

## Tech Articles: Prompts Library

- [AI Prompts for Software Developers: 40+ Templates](https://rajeshpraharaj.com/tech-articles/prompts-for-developers/index.md): Copy-paste AI prompts for code review, debugging, documentation, testing, and architecture. Works with ChatGPT, Claude, Cursor.
- [AI Prompts for Product Managers: 40+ Templates](https://rajeshpraharaj.com/tech-articles/prompts-for-product-managers/index.md): Copy-paste AI prompts for PRDs, user stories, roadmaps, competitive analysis, and stakeholder communication. Works with ChatGPT.
- [AI Prompts for Business Analysts: 40+ Templates](https://rajeshpraharaj.com/tech-articles/prompts-for-business-analysts/index.md): Copy-paste AI prompts for requirements gathering, process mapping, stakeholder analysis, and documentation. Works with ChatGPT.
- [AI Prompts for Data Scientists & Analysts: 40+ Templates](https://rajeshpraharaj.com/tech-articles/prompts-for-data-scientists/index.md): Copy-paste AI prompts for EDA, SQL queries, statistical analysis, machine learning, data visualization, and reporting. Works with ChatGPT, Claude, and Gemini.
- [AI Prompts for Marketing Professionals: 40+ Templates](https://rajeshpraharaj.com/tech-articles/prompts-for-marketers/index.md): Copy-paste AI prompts for content marketing, copywriting, SEO, social media, email campaigns, and brand strategy. Works with ChatGPT, Claude, and Gemini.
- [AI Prompts for HR & Recruiters: 40+ Templates](https://rajeshpraharaj.com/tech-articles/prompts-for-hr/index.md): Copy-paste AI prompts for job descriptions, candidate screening, interviews, onboarding, and performance reviews. Works with ChatGPT.
- [AI Prompts for Finance Professionals: 40+ Templates](https://rajeshpraharaj.com/tech-articles/prompts-for-finance/index.md): Copy-paste AI prompts for financial analysis, budgeting, forecasting, Excel formulas, financial modeling, and reporting. Works with ChatGPT, Claude, and Gemini.
- [AI Prompts for Consultants & Strategists: 40+ Templates](https://rajeshpraharaj.com/tech-articles/prompts-for-consultants/index.md): Copy-paste AI prompts for strategy frameworks, market analysis, client presentations, and executive communication. Works with ChatGPT.
- [AI Prompts for Writing & Documentation: 40+ Templates](https://rajeshpraharaj.com/tech-articles/prompts-for-writers/index.md): Copy-paste AI prompts for technical writing, documentation, editing, proofreading, style guides, and content creation. Works with ChatGPT, Claude, and Gemini.
- [AI Prompts for Research & Analysis: 40+ Templates](https://rajeshpraharaj.com/tech-articles/prompts-for-researchers/index.md): Copy-paste AI prompts for literature reviews, competitive analysis, market research, and data synthesis. Works with ChatGPT, Claude.
- [AI Prompts for Problem-Solving & Decisions: 40+ Templates](https://rajeshpraharaj.com/tech-articles/prompts-for-problem-solving/index.md): Copy-paste AI prompts for root cause analysis, decision frameworks, and risk assessment. Works with ChatGPT, Claude, Gemini.
- [AI Prompts for Learning & Skill Development: 40+ Templates](https://rajeshpraharaj.com/tech-articles/prompts-for-learning/index.md): Copy-paste AI prompts for study plans, concept explanations, and practice exercises. Works with ChatGPT, Claude, Gemini.
- [AI Prompts for Meetings & Collaboration: 40+ Templates](https://rajeshpraharaj.com/tech-articles/prompts-for-meetings/index.md): Copy-paste AI prompts for meeting agendas, facilitation, notes, follow-ups, and team communication. Works with ChatGPT, Claude.
- [Mega-Prompt Engineering: Creating All-in-One AI Assistants](https://rajeshpraharaj.com/tech-articles/mega-prompt-engineering/index.md): Build comprehensive mega-prompts that turn AI into specialized assistants. Templates for expert systems and workflow automators.
- [Prompt Templates & Variables: Building Reusable Prompts](https://rajeshpraharaj.com/tech-articles/prompt-templates-variables/index.md): Learn to create reusable prompt templates with variables, conditionals, and modular components. Build a personal prompt library that saves hours of work.
- [Multi-Modal Prompting: Text, Images, and Beyond](https://rajeshpraharaj.com/tech-articles/multi-modal-prompting/index.md): Master prompts for AI that sees images and generates visuals. Ready-to-use prompts for GPT-4 Vision, Claude, DALL-E, and Midjourney.
- [AI Prompts for Healthcare Professionals: 40+ Templates](https://rajeshpraharaj.com/tech-articles/prompts-for-healthcare/index.md): Copy-paste AI prompts for medical documentation, patient communication, clinical summaries, and research. Works with ChatGPT.
- [AI Prompts for Legal & Compliance: 40+ Templates](https://rajeshpraharaj.com/tech-articles/prompts-for-legal/index.md): Copy-paste AI prompts for contract analysis, legal research, and compliance documentation. Works with ChatGPT, Claude.

## Tech Articles: AI Learning Series

- [What Are Large Language Models? A Beginner's Guide](https://rajeshpraharaj.com/tech-articles/what-are-large-language-models/index.md): Learn what Large Language Models (LLMs) are, how they work, and why they matter. A beginner's guide to understanding ChatGPT, Claude, and Gemini.
- [The Evolution of AI: From Rule-Based Systems to GPT-5](https://rajeshpraharaj.com/tech-articles/evolution-of-ai/index.md): Discover AI's 75-year history from 1950s rule-based systems to GPT-5. Learn about neural networks and the Transformer breakthrough.
- [How LLMs Are Trained: From Data to Intelligence](https://rajeshpraharaj.com/tech-articles/how-llms-are-trained/index.md): Discover how Large Language Models are trained from raw data to intelligent assistants. Learn pre-training, fine-tuning, and RLHF in plain English.
- [The AI Landscape: Companies, Models & Ecosystems](https://rajeshpraharaj.com/tech-articles/understanding-the-ai-landscape/index.md): Navigate the AI landscape with confidence. Learn about OpenAI, Anthropic, Google, Meta, and how to choose the right AI tools for your needs.
- [Tokens, Context Windows & Parameters Demystified](https://rajeshpraharaj.com/tech-articles/tokens-context-parameters/index.md): Master the essential vocabulary of AI. Learn what tokens, context windows, and parameters mean—and how they affect pricing, performance, and model selection.
- [How to Talk to AI: Prompt Engineering Fundamentals](https://rajeshpraharaj.com/tech-articles/prompt-engineering-fundamentals/index.md): Master prompt engineering. Learn zero-shot, few-shot, and chain-of-thought techniques to get better results from any AI.
- [Advanced Prompt Engineering: Techniques That Work](https://rajeshpraharaj.com/tech-articles/advanced-prompt-engineering/index.md): Master advanced AI prompting with Chain-of-Thought, Tree of Thoughts, ReAct, and more. Learn system prompts, prompt chaining, and security best practices.
- [Understanding AI Safety, Ethics, and Limitations](https://rajeshpraharaj.com/tech-articles/understanding-ai-safety/index.md): Learn about AI hallucinations, bias, privacy, the alignment problem, and responsible AI usage. A comprehensive guide to using AI thoughtfully and safely.
- [ChatGPT vs Claude vs Gemini vs Grok: AI Assistants Compared](https://rajeshpraharaj.com/tech-articles/ai-assistant-comparison/index.md): Compare 6 major AI assistants head to head. Discover which AI excels at coding, research, and writing.
- [AI for Everyday Productivity: Email, Writing, and Research](https://rajeshpraharaj.com/tech-articles/ai-for-everyday-productivity/index.md): Transform your daily workflow with AI. Learn to write emails faster, draft better documents, and conduct smarter research using ChatGPT, Claude, and Gemini.
- [AI Search Engines: The Future of Finding Information](https://rajeshpraharaj.com/tech-articles/ai-search-engines/index.md): Discover how AI search engines like Perplexity, Google AI, and Copilot are transforming research. Learn when to use AI vs traditional search.
- [AI-Powered IDEs: Cursor, Windsurf, Copilot & Kiro Compared](https://rajeshpraharaj.com/tech-articles/ai-powered-ides/index.md): Master AI coding assistants with our comprehensive guide. Compare Cursor, Windsurf, VS Code Copilot, Google Antigravity, Amazon Kiro, and more.
- [CLI Tools for AI - Terminal-Based AI Assistants](https://rajeshpraharaj.com/tech-articles/cli-tools-for-ai/index.md): Master 11 terminal-based AI coding assistants: Gemini CLI, Claude Code, Aider, DROID CLI, and more. Complete guide to CLI AI tools for developers.
- [Building Your First AI-Powered Application](https://rajeshpraharaj.com/tech-articles/building-first-ai-application/index.md): Learn to build AI apps with OpenAI, Claude, and Gemini APIs. Complete guide with Python/JavaScript examples, streaming, function calling, and more.
- [RAG, Embeddings, and Vector Databases Explained](https://rajeshpraharaj.com/tech-articles/rag-embeddings-vector-databases/index.md): Master Retrieval Augmented Generation (RAG), embeddings, and vector databases. Build AI applications grounded in your own data with this complete guide.
- [AI Image Generation Guide: DALL-E, Midjourney & Flux](https://rajeshpraharaj.com/tech-articles/ai-image-generation/index.md): Master AI image generation with DALL-E, Midjourney v7, Stable Diffusion 3.5, and Flux. Compare platforms and create stunning AI art.
- [AI Video Generation: From Text to Moving Pictures](https://rajeshpraharaj.com/tech-articles/ai-video-generation/index.md): Master AI video generation with Sora 2, Runway Gen-4.5, Kling O1, and Veo 3.1. Create stunning videos from text prompts.
- [AI Voice & Audio: Text-to-Speech, Voice Cloning & Music](https://rajeshpraharaj.com/tech-articles/ai-voice-audio/index.md): Master AI voice technology. Learn text-to-speech, voice cloning, and AI music generation with ElevenLabs, Suno, Udio, and more.
- [AI for Design - Canva AI, Figma AI, and Design Automation](https://rajeshpraharaj.com/tech-articles/ai-for-design/index.md): Master AI design tools: Canva Magic Studio, Figma AI, Adobe Firefly, and more. Learn how AI is transforming graphic design, UI/UX, and visual content.
- [AI Agents: The Breakout Year of Autonomous AI (2025)](https://rajeshpraharaj.com/tech-articles/ai-agents/index.md): Master AI agents—from OpenAI Operator and Claude Computer Use to Devin AI and the new Agentic AI Foundation. Learn how agents are reshaping work.
- [Fine-Tuning LLMs: From Base Models to Domain Experts](https://rajeshpraharaj.com/tech-articles/fine-tuning-customizing-llms/index.md): Master LLM fine-tuning. Learn LoRA, QLoRA, DPO, and ORPO techniques, compare platforms, and deploy custom models on OpenAI, Bedrock, and local hardware.
- [Running LLMs Locally: Ollama & LM Studio Guide](https://rajeshpraharaj.com/tech-articles/running-llms-locally/index.md): Run AI models like LLaMA 4 and DeepSeek V3 on your computer for free. Complete local LLM guide with Ollama and LM Studio.
- [AI-Powered Workflows: A Guide to Agentic Automation](https://rajeshpraharaj.com/tech-articles/ai-powered-workflows/index.md): Build AI-powered workflows using LangChain, CrewAI, Zapier Agents, and n8n. Complete guide to intelligent automation systems.
- [The Future of LLMs - What's Coming Next in 2026 and Beyond](https://rajeshpraharaj.com/tech-articles/future-of-llms/index.md): Explore where LLMs are heading—from agentic AI to physical robotics and the path to AGI. Research-backed guide to AI's future.

## Blog

- [AI in 2025: A Complete Month-by-Month Timeline](https://rajeshpraharaj.com/blog/ai-2025-year-in-review/index.md): From DeepSeek's January disruption to GPT-5 and Claude 4—every major AI model release and breakthrough that defined 2025.
- [Why Your AI Agent Gets Dumber Over Time (And How to Fix It)](https://rajeshpraharaj.com/blog/why-ai-agents-get-dumber/index.md): Learn why AI agents degrade during long-running tasks. Master context hygiene, avoid the model upgrade trap, and build reliable agents.
- [Agentic Browsers: The Complete Guide to AI-Powered Browsing](https://rajeshpraharaj.com/blog/agentic-browsers/index.md): Discover what agentic browsers are, how they work, and which ones to use. Compare OpenAI Operator, Google Mariner, and more.
- [AI Agents vs Agentic AI: The Definitive Guide](https://rajeshpraharaj.com/blog/ai-agents-vs-agentic-ai/index.md): Understand the key differences between AI agents and agentic AI. Learn which technology fits your needs with real-world examples.
- [Context Engineering: Building Reliable AI Systems](https://rajeshpraharaj.com/blog/context-engineering/index.md): Master context engineering—the critical discipline for production-grade AI. Learn techniques, best practices, and tools for LLM optimization.

## Developer Tools

- [Base64 Encoder/Decoder](https://rajeshpraharaj.com/dev-tools/base64-encoder-decoder/index.md): Free online Base64 encoder and decoder tool. Convert text to Base64, decode Base64 strings, encode files and images—all securely in your browser with no data uploaded to servers.
- [CIDR / Subnet Calculator](https://rajeshpraharaj.com/dev-tools/cidr-subnet-calculator/index.md): Calculate network address, host range, broadcast, and mask from a CIDR. Check whether two ranges overlap. Runs in your browser.
- [Cron Expression Builder](https://rajeshpraharaj.com/dev-tools/cron-expression-builder/index.md): Free online cron expression generator. Build and validate crontab schedules with visual builder, presets, and next run times.
- [CSS Minifier / Beautifier](https://rajeshpraharaj.com/dev-tools/css-minifier-beautifier/index.md): Beautify or minify CSS in your browser. Check the size change, copy the result, or download a .css file.
- [CSV to JSON Converter](https://rajeshpraharaj.com/dev-tools/csv-to-json-converter/index.md): Free online CSV to JSON converter. Convert CSV files to JSON format with custom delimiters, type detection, and multiple output options.
- [cURL to Code Converter](https://rajeshpraharaj.com/dev-tools/curl-to-code-converter/index.md): Paste a cURL command from DevTools and convert it to fetch, Axios, Python requests, or Go. Runs in your browser.
- [Diff Checker](https://rajeshpraharaj.com/dev-tools/diff-checker/index.md): Compare two text or JSON inputs in your browser. See line and word changes, ignore key order, and copy a clean diff.
- [Env File Converter](https://rajeshpraharaj.com/dev-tools/env-file-converter/index.md): Convert .env files to JSON, Docker env flags, or Kubernetes Secret YAML. Parse quotes and comments in your browser.
- [Fake Data Generator](https://rajeshpraharaj.com/dev-tools/fake-data-generator/index.md): Generate realistic fake users, emails, and addresses as JSON, CSV, or SQL inserts. Runs locally in your browser.
- [Hash Generator](https://rajeshpraharaj.com/dev-tools/hash-generator/index.md): Free online hash generator. Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512 hashes from text or files instantly.
- [HTML Minifier / Beautifier](https://rajeshpraharaj.com/dev-tools/html-minifier-beautifier/index.md): Format or minify HTML in your browser. Preserve or collapse whitespace, then copy or download the result.
- [HTML to Markdown Converter](https://rajeshpraharaj.com/dev-tools/html-to-markdown-converter/index.md): Free online HTML to Markdown converter with live output, Markdown preview, and one-click copy/download. Runs completely in your browser for private conversion.
- [JavaScript Minifier & Beautifier](https://rajeshpraharaj.com/dev-tools/javascript-minifier-beautifier/index.md): Free online JavaScript minifier and beautifier with JSON mode, instant formatting, and one-click copy/download. Runs fully in your browser for private processing.
- [JSON Formatter & Validator](https://rajeshpraharaj.com/dev-tools/json-formatter-validator/index.md): Format, validate, and inspect JSON in your browser. Magic auto-fix, tree explorer, and minify — no upload.
- [JSON Schema Validator](https://rajeshpraharaj.com/dev-tools/json-schema-validator/index.md): Validate JSON against a schema, or generate a draft schema from a sample payload. All processing stays in your browser.
- [JSON to CSV Converter](https://rajeshpraharaj.com/dev-tools/json-to-csv-converter/index.md): Free online JSON to CSV converter tool. Convert nested JSON to Excel-ready CSV files instantly. Flatten objects, select columns, batch process—100% private, works offline.
- [JSON to Table Converter - Free Online JSON Viewer & Table Generator](https://rajeshpraharaj.com/dev-tools/json-to-table-converter/index.md): Convert JSON to interactive table format instantly. Visualize nested JSON data, filter and search, export to CSV/HTML/JSON. Free, secure, 100% browser-based JSON viewer tool.
- [JSON to Types Converter](https://rajeshpraharaj.com/dev-tools/json-to-types-converter/index.md): Paste JSON and generate TypeScript interfaces, Zod schemas, or Go structs. Infers types in your browser.
- [JSON to XML Converter - Free Online Bidirectional Conversion Tool](https://rajeshpraharaj.com/dev-tools/json-to-xml-converter/index.md): Convert JSON to XML and XML to JSON instantly. Real-time validation, syntax highlighting, format options, and download—all in your browser. 100% free and secure.
- [JWT Decoder & Inspector](https://rajeshpraharaj.com/dev-tools/jwt-decoder/index.md): Free online JWT decoder and validator. Decode JSON Web Tokens, inspect header and payload claims, verify signatures, and debug authentication issues—all securely in your browser.
- [JWT Generator](https://rajeshpraharaj.com/dev-tools/jwt-generator/index.md): Build a JSON Web Token, set claims, and sign it with HS256 in your browser. Use it with the JWT decoder to inspect the result.
- [Markdown to HTML Converter](https://rajeshpraharaj.com/dev-tools/markdown-to-html-converter/index.md): Free online Markdown to HTML converter with live preview, clean output, and one-click HTML export. Runs fully in your browser for private and fast conversion.
- [Password Generator](https://rajeshpraharaj.com/dev-tools/password-generator/index.md): Free secure password generator. Create strong random passwords with customizable length, character types, and modes.
- [QR Code Generator](https://rajeshpraharaj.com/dev-tools/qr-code-generator/index.md): Free online QR code generator. Create QR codes for URLs, WiFi networks, contacts, emails, and more with customizable options.
- [Regex Tester](https://rajeshpraharaj.com/dev-tools/regex-tester/index.md): Free online regex tester and builder. Test regular expressions with real-time match highlighting and common patterns library.
- [SQL Formatter](https://rajeshpraharaj.com/dev-tools/sql-formatter/index.md): Free online SQL formatter and beautifier. Format messy SQL queries with syntax highlighting and support for multiple dialects.
- [String Case Converter](https://rajeshpraharaj.com/dev-tools/string-case-converter/index.md): Convert text to camelCase, snake_case, kebab-case, PascalCase, and CONSTANT_CASE. Convert one string or a whole list in your browser.
- [Timestamp Converter](https://rajeshpraharaj.com/dev-tools/timestamp-converter/index.md): Free online Unix timestamp converter. Convert epoch to date and date to timestamp with timezone support.
- [URL Encoder/Decoder](https://rajeshpraharaj.com/dev-tools/url-encoder-decoder/index.md): Free online URL encoder and decoder. Encode special characters, decode percent-encoded URLs, parse query strings, and analyze URL components—all securely in your browser.
- [UUID Generator](https://rajeshpraharaj.com/dev-tools/uuid-generator/index.md): Free online UUID/GUID generator. Generate UUID v1, v4, v5 with bulk generation, validation, and multiple formats.
- [XML to Table Converter - Free Online XML Viewer & Table Generator](https://rajeshpraharaj.com/dev-tools/xml-to-table-converter/index.md): Convert XML to interactive table format instantly. Visualize nested XML data, filter and search, export to CSV/HTML/JSON. Free, secure, 100% browser-based XML viewer tool.
- [YAML to JSON Converter - Free Online Bidirectional Conversion Tool](https://rajeshpraharaj.com/dev-tools/yaml-to-json-converter/index.md): Convert YAML to JSON and JSON to YAML instantly. Real-time validation, syntax highlighting, format options, and download—all in your browser. 100% free and secure.
- [YAML to XML Converter - Free Online Bidirectional Conversion Tool](https://rajeshpraharaj.com/dev-tools/yaml-to-xml-converter/index.md): Convert YAML to XML and XML to YAML instantly. Real-time validation, syntax highlighting, format options, and download—all in your browser. 100% free and secure.

## AI Tools

- [AI Email Rewriter](https://rajeshpraharaj.com/ai-tools/email-rewriter/index.md): Transform your emails with AI. Rewrite messages to be clearer, more professional, polite, or persuasive. Free AI tool to improve email communication instantly.
- [AI OKR Generator](https://rajeshpraharaj.com/ai-tools/okr-generator/index.md): Generate strategic OKRs and key results aligned with your company vision. Free AI tool for creating measurable objectives across teams and departments.
- [AI Prompt Generator](https://rajeshpraharaj.com/ai-tools/prompt-generator/index.md): Transform your rough ideas into optimized, well-structured prompts for any AI model including ChatGPT, Claude, Gemini, and more.
- [Backlog Builder](https://rajeshpraharaj.com/ai-tools/backlog-builder/index.md): Build sprint-ready product backlogs with AI. Transform requirements into EPICs, Features, and User Stories with acceptance criteria. Our free backlog builder helps agile teams, product managers, and founders create high-quality, prioritized backlogs.
- [Business Case Generator](https://rajeshpraharaj.com/ai-tools/business-case-generator/index.md): Create compelling, stakeholder-ready business cases with ROI analysis, risk assessment, and financial projections. Our free AI business case generator helps founders, product managers, and executives justify investments and win approvals.
- [Hackathon Idea Generator](https://rajeshpraharaj.com/ai-tools/hackathon-idea-generator/index.md): Generate creative, feasible hackathon project ideas tailored to your team's skills, available time, and hackathon theme. Get implementation plans, tech stack recommendations, and competition-winning concepts for college hackathons, corporate hack days, and startup weekends.
- [Idea to Product](https://rajeshpraharaj.com/ai-tools/idea-to-product/index.md): Transform ideas into complete product specifications with our AI product development workflow. Generate FRD, Solution Design, Tasks, Test Cases, and UI mockups in one integrated tool. Perfect for product managers, founders, and development teams.
- [LinkedIn Post Generator](https://rajeshpraharaj.com/ai-tools/linkedin-post-generator/index.md): Create engaging, professional LinkedIn posts in seconds with our free AI LinkedIn post generator. Perfect for personal branding, thought leadership, and lead generation.
- [PRD Generator](https://rajeshpraharaj.com/ai-tools/prd-generator/index.md): Create comprehensive Product Requirements Documents in minutes with our free AI PRD generator. Perfect for product managers, founders, and engineering teams who need professional, actionable PRDs.
- [System Design Generator](https://rajeshpraharaj.com/ai-tools/system-design-generator/index.md): Generate comprehensive system design documents with AI. Create architecture diagrams, component specifications, API designs, database schemas, scalability strategies, and deployment plans in minutes.
- [Test Case Generator](https://rajeshpraharaj.com/ai-tools/test-case-generator/index.md): Generate comprehensive, professional test cases from user stories and acceptance criteria in minutes. Free AI-powered tool for QA engineers, developers, and product teams who need thorough test documentation without the tedious manual work.
- [User Persona Builder](https://rajeshpraharaj.com/ai-tools/user-persona-builder/index.md): Generate detailed, research-backed user personas with AI in minutes. Free AI-powered tool for product managers, UX designers, and marketers who need comprehensive user profiles without weeks of research.

## Optional

- [About](https://rajeshpraharaj.com/about/index.md): Who runs this site and why.
- [LLM Benchmarks](https://rajeshpraharaj.com/llm-benchmarks/index.md): Compare AI model performance across key benchmarks.
- [Developers & AI Agents](https://rajeshpraharaj.com/developers/index.md): Public content API, MCP server, and discovery files.