Just a dev

productHunt

Pranav Mailarpawar  • Peerlist

It started with a frustration most developers know too well, looking down at the keyboard mid-thought, losing the idea, breaking the flow. I wanted a typing trainer that actually took the problem seriously. Everything I found either looked like it was built in 2003 or treated the whole thing like a casual game. So I built my own.KeyboardKungFu began as a simple WPM test. Type some words, see your speed, done. But the more I used it, the more I wanted to know, not just how fast I typed, but why I kept slowing down. Which keys were killing me? Where in the test did my speed drop? Was I actually getting better over time or just having good days?So I added the analytics. Then the heatmap. Then personal records. Then a full session history. Each feature came from a real question I had about my own typing.Then came the hardest part ,I realised that testing yourself over and over doesn't actually teach you anything. You need structure. So I built the Learn mode. 50 lessons across 6 levels, starting from the very basics of home row posture all the way up to elite speed drills, code syntax, medical terminology, and literary prose. Every lesson has a target WPM and accuracy, you don't move forward until you hit both. No skipping, no shortcuts.I've seen people go from 35 WPM to 90+ just by completing all 50 lessons in order. That's not a marketing claim, that's what deliberate, structured practice does to muscle memory.No account needed. No ads. Everything saved locally in your browser. Just you and the keyboard :)

KeyboardKungFu

TLDR:<ul><li>Scientifically Accurate Orbits – Planets move in real elliptical paths using NASA JPL data and Keplerian mechanics</li><li>Time Travel Controls – Jump to any date between 1900–2100, rewind history, or fast-forward to future planetary alignments</li><li>Interactive 3D Solar System – Fully explorable 3D environment powered by WebGL and Three.js</li><li>High-Precision Physics – Orbital positions accurate to within 1 km using Newton–Raphson solvers</li><li>Constellation View – Zoom out from the solar system to reveal named constellations and their true spatial layout</li><li>Complete Planetary System – All 8 planets, 5 dwarf planets, major moons, and accurate rotations</li></ul> I've always been fascinated by space. As a kid, I'd spend hours staring at the night sky, wondering what it would be like to actually travel through the solar system. But traditional planetarium software felt... distant. Cold. Like looking at space through a textbook rather than experiencing it.That's when the idea for SpaceTrekk was born.I wanted to create something that made space exploration feel real. Not just pretty pictures of planets, but an actual simulation where you could witness the intricate dance of celestial bodies, track real spacecraft on their journeys, and understand the physics that governs our cosmic neighborhood.## The JourneyBuilding SpaceTrekk was like solving a beautiful puzzle. I dove deep into NASA's JPL databases, studying Keplerian orbital elements and celestial mechanics. Every planet needed to follow its authentic elliptical orbit, tilted at the correct angle, moving at scientifically accurate speeds. It wasn't enough to make it look right it had to be right.The breakthrough moment came when I successfully implemented the Newton-Raphson solver for Kepler's equation. Watching Mars follow its eccentric orbit with sub-kilometer accuracy felt like magic. These weren't just 3D models floating in space these were mathematically precise representations of actual planetary motion.## What Makes SpaceTrekk SpecialReal Science, Real Data: Every celestial body uses official NASA data. The positions you see are accurate to within 1 kilometer. When you watch Voyager 1 edge toward interstellar space or track the James Webb Space Telescope at its L2 point, you're seeing their actual positions.Time Travel: Want to see where Saturn was on your birthday? Or predict the next planetary alignment? SpaceTrekk's time controls let you jump to any date between 1900-2100, speed up time, or watch history unfold in real-time.The Universe in Detail: I packed in 8,000+ stars with their real positions and brightness, 250+ galaxies scattered across deep space, and detailed 3D models of all 8 planets, 5 dwarf planets, and 10+ active spacecraft missions including both NASA and ISRO missions.Performance First: Despite all this complexity, SpaceTrekk runs smoothly at 60fps on most devices. I implemented intelligent level-of-detail management, optimized WebGL rendering, and adaptive quality settings so even mobile users can explore space seamlessly.## The Technical Deep DiveUnder the hood, SpaceTrekk is a love letter to computational astronomy:- Keplerian orbital mechanics calculate positions using six classical orbital elements- Three.js and WebGL power the 3D visualization with physically-based rendering- Custom GLSL shaders create realistic planetary atmospheres and procedural textures- J2000 epoch system ensures astronomical accuracy across centuries- Newton-Raphson iteration solves Kepler's equation to machine precisionBut here's what I'm most proud of: I made it accessible. You don't need to understand orbital mechanics or astronomy to use SpaceTrekk. Just launch it, click on a planet, and start exploring.## Who It's ForStudents can visualize concepts that textbooks struggle to explain. Why do planets move faster when they're closer to the Sun? SpaceTrekk shows you Kepler's laws in action.Educators finally have a tool that makes teaching astronomy engaging. No more static diagrams show your class Mars' elliptical orbit or Saturn's magnificent rings in 3D.Space enthusiasts can track real missions, witness astronomical events, and explore the solar system from perspectives they've never seen before.Curious minds who just want to see what's out there. Where's the ISS right now? How far has Voyager traveled? SpaceTrekk answers these questions beautifully.## The FutureThis is just the beginning. I'm working on adding more spacecraft missions, implementing n-body physics for even more accuracy, adding comet tracking, and creating an educational mode with guided tours through the solar system.SpaceTrekk isn't just a project it's my attempt to share the wonder I felt as a kid staring at the stars, now powered by accurate science and modern technology.Try it yourself. Launch the app, select a planet, speed up time, and watch the cosmic ballet unfold. I promise you'll see the solar system in a whole new light.Welcome aboard. Let's explore space together.

Spacetrekk

You know that feeling when you need to merge two PDFs at 2 AM, and you're stuck choosing between:a) Uploading your confidential documents to "<a target="_blank" rel="noopener noreferrer" class="break-all link-break text-gray-500 hover:underline" href="http://totally-safe-pdf-converter-2024.biz">totally-safe-pdf-converter-2024.biz</a>"b) Installing Adobe's 3GB bloatwarec) Just... giving upYeah, I hated that too.So I spent a week building what I wished existed - a PDF toolkit that actually respects you.Here's the deal:Your files NEVER leave your browser. I literally can't see them even if I wanted to.Everything happens on your device using WebAssembly magic.No "Free trial" → Premium paywall nonsenseNo "3 files per day" limitsNo suspicious upload bars that make you wonder where your data's goingJust 15+ tools that work. Offline. Forever. For free.My favorite part? An old client from my freelance days emailed me:"Finally used your tool for a legal contract. Slept better knowing it never touched a server."That's when I knew I built something that mattered.The tech stack is pretty cool too - React, PDF.js, Ghostscript WASM, and It's a PWA, so you can install it like a real app.8,000+ people use it monthly. Some law firms, some students, some folks in countries with strict data laws. They all just wanted their PDFs to stay... theirs.Because good tools should be accessible, private, and honest.