About KrishnaTools
A growing collection of 20 free AI-powered tools for daily problems — investment planning, content growth, SEO, productivity. Built with care, no ads, no signup.
The Story Behind KrishnaTools
I'm Krishna Kumar P, a Full Stack Web Developer based in Chennai, India, currently working at Cedilla Interactive Agency since November 2024. I built KrishnaTools because most "free online tools" are anything but — they hide behind signups, force ads, watermark outputs, and sell your data.
This is my answer: 20 genuinely free tools that solve real daily problems. No accounts. No tracking beyond anonymous analytics. No watermarks. Just useful.
Who Is Krishna Kumar P?
I'm a developer who shipped his first website at 18 and never stopped. After completing my Master of Computer Application (MCA, CGPA 8.12) at Krishanasamy College of Engineering and Technology, I joined Cedilla Interactive Agency as a Full Stack Developer.
Current role & experience
At Cedilla Interactive Agency I build dynamic web applications using PHP & CodeIgniter, customize Shopify and WordPress themes, design responsive UIs, work with MySQL databases, and deploy to production environments. I work with cross-functional teams to ship client projects on tight timelines.
Technical Skills
Why These 20 Tools Exist
Each tool here solves a problem I or someone I know actually had:
- SIP Calculator — when my friend asked "how do I plan for ₹50 lakh by 35?"
- GST Calculator — when a freelancer cousin couldn't quickly split 18% into CGST + SGST
- EMI Calculator with prepayment — because no calculator showed how much I'd save by paying extra ₹5k/month
- Tax Calculator (Old vs New) — because the choice between regimes was confusing every March
- Crypto Tracker — to follow my portfolio without 5 different apps
- QR Code Generator with logo — for my friend's small restaurant menu
- Image Compressor — for fast website loading without paid services
- AI Chat — free ChatGPT alternative for students who can't afford Plus
- All others — same story. Real problems → simple, useful tools.
The Tech Stack Behind These Tools
Every tool is a single HTML file with vanilla JavaScript. No frameworks. No build step. No bloat. They run 100% in your browser using:
- Google Gemini AI — for content generation, chatbots, recommendations
- CoinGecko API — live crypto prices (free tier)
- ExchangeRate-API — live currency rates (free tier)
- HTML5 Canvas API — for image compression
- PDF-Lib.js — for PDF merging and image-to-PDF
- QRCode.js — for QR code generation
- localStorage — for saving your data in YOUR browser only
What I'm Available For
- Full Stack Web Development — PHP, MySQL, Laravel, WordPress, Shopify
- Custom AI tool development — like these but tailored to your business
- Web app development — MERN stack, Flutter cross-platform mobile
- Freelance / contract work — short or long-term engagements
- Full-time opportunities — Senior Full Stack Developer roles in India or remote
📧 Get in Touch
Have a project? Want a custom tool? Or just want to say hi?