I built a reverse leaderboard where getting to #1 means everybody hates you
Hi - Hola! I vibe-coded this little side project called Poopularity. The idea is basically a reverse leaderboard: the more people hate something, th…
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The Freedom of Pet Projects
In June, I learned how to change diapers and convinced myself that 5 hours of sleep is a luxury. Somewhere in between, I also shipped iOS for Kombin…
I just launched a wiki site for "Beasts of Reincarnation" players
Hi DEV Community! 👋 As a developer who loves building side projects, I'm excited to share my latest creation: a dedicated wiki and guide site for th…
How I Built a Trading Value Tool for a Game With Constantly Changing Data
Game websites look simple from the outside. A player searches for an item, finds its value, and moves on. But once you are responsible for maintaini…
Amazon S3 Hands-On Practicals
I recently worked through a hands-on Amazon S3 practical series covering the features I would actually expect to use while working with AWS storage.…
A Pet Project: Zodiacl
It’s been awhile since I typed some words around here. Right around the World Cup was the last time, from what I can see. I really didn’t want to li…
Building Suzi Chat: A retro MSN-style chat platform with mini-games
I built Suzi Chat to bring back the nostalgic feel of late-90s/early-2000s browser chat rooms. Key Features: Create and customize your own public or…
Building FindCoffeeMate: A Small MVP That Taught Me Big Lessons
As developers, we rarely run out of ideas. What we often run out of is the right people to build those ideas with. Over the years, I noticed a commo…
100% client-side dev toolkit (no data leaves your browser)
I’m a web developer based in South Korea. When working on my projects, I always felt a bit uneasy pasting my code, database logs, or API payloads in…
I built an in-browser passport & visa photo maker with zero server uploads (Looking for feedback!)
Hey everyone! 👋 I got frustrated seeing passport photo websites charge $15+ or upload private biometric portraits to third-party servers. So I built…
I Ran 50 Emails Through AI Agents. 12 SMTP Bounces Hit.
ai, #api, #security, #sideprojects The 50-email experiment On August 12, I handed an AI agent a CSV of fifty email addresses and an SMTP tool. Thirt…
I kept rebuilding the same backend for every side project, so I built Kroxt
The problem [1-2 paragraphs: every project needs auth, a database, storage, email — you've built this five times, here's why that got old] What Krox…
I Miss Being a Coder in the Age of AI !!
In this whole AI-written-code era, I've started feeling a little lost. New AI tools, frameworks, projects, and software seem to be launching every h…
Is “leave a Telegram group now, get a way back later” useful — or just an overengineered bookmark?
Sometimes I want to leave a Telegram group for a while — not just mute or archive it — but still have a deliberate way back later. I built a small o…
How I Built a No-App Photo Sharing Platform Using Just QR Codes and Browser Cameras
Last summer, I was at my cousin's wedding. 200 guests, one professional photographer, and exactly zero way for anyone else to share the photos they…
the sea is calling
i had a bit of an existential crisis with SDE career track. it's a bubble. not bursting fast enough. so i am off that ship until further notice. i h…
I built a Chrome extension, got 100 installs, and 90% of users left. Here's what I'm fixing.
Somewhere around install #80, I stopped checking my Chrome Web Store dashboard every day. Not because I'd lost interest — because the number that ma…
I Built a Tariff Lookup and Learned Why "Laptop" Is Not a Good Enough Word
Shipping side project hardware internationally made me sit down and actually read the Harmonized System for the first time. Ports and laptops, it tu…
I built a quiz-driven gift recommender (Next.js + Cloudflare Pages)
Most "AI gift finders" are a search box with a chatbot glued on. I wanted to build something different — a quiz-driven gift recommender that ranks r…
Your Side Project Doesn't Need a Public IP. Here's the Proof.
I used to think every server needed a public IP. It's just... how servers work, right? Then I moved my side project , a small Node.js API with a Pos…
I Built an IP Geo Phone Server — 5 Things I Actually Used
I Built an IP Geo Phone Server — 5 Things I Actually Used python, #api, #sideprojects, #security The cheapest server I own isn't a Pi or a refurbish…
Why I stopped guessing at Spark and dbt config values
I've spent more than a decade building data pipelines, and the part nobody warns you about isn't the pipeline logic. It's the tuning. Executor memor…
I Got Sick of Subscription Budget Apps. So I Built My Own With Telegram, Python, and a $0/Month Stack.
No logins. No monthly fees. No "Premium required to export your own data." Just you, a Telegram message, and a double-click. Try it now: @PennyTrak_…
ESPBanking By Dumasha
Hello, I am presenting my project ESPBanking, It is a simulation of a Bank system with RFID System, Security, Web UI and much more. I got that Idea…
Building Small Things
Recently, I’ve been spending more time building small projects on my own. One thing I’ve learned is that it’s usually better to keep things simple a…
New tool to match any guitar tone to your gear
Every guitarist has done this: you learn the notes to a song, play it back, and it still doesn't sound like the record. The tab was right. The tone…
I launched Roversia on Product Hunt — 39+ free browser tools, zero frameworks
Today I launched Roversia on Product Hunt — a free, ad-free platform of 39+ browser-based utility tools I've been building solo. The stack is delibe…
From 3 clicks to 664: what a real SEO audit found in my React SSG site
Three months ago I wrote a post about adding JSON-LD to my side project. The result was 1,600 impressions and 3 clicks over 28 days. Average positio…
ROI of my 100$ Claude Code Subscription
We’ve all heard the stories about AI and how much faster it supposedly makes you at building software. Some people say they’ve become 10x or even 10…
I Was in 340 Telegram Groups, So I Built a Cleanup Tool
The problem I kept ignoring I was in 340 Telegram groups. Crypto project chats from 2021. Dev communities I joined once and never visited again. Ran…