I’m genuinely excited to share something I’ve been building 🚀 Not because it’s “just another project”… But because I built it out of pure frustration. As a developer, I was tired of: ❌ Tools full of annoying ads   ❌ Websites secretly uploading my data   ❌ Slow, outdated tools that feel like 2010  So I decided to fix it myself. --- 🚀 Introducing: StringToolsApp A suite of 14 developer tools that: ✔ Run 100% in your browser   ✔ Never send your data anywhere   ✔ Have ZERO ads, ZERO tracking, ZERO signup  Yes — even your JSON never leaves your device. --- Here’s what’s inside 👇 🔹 JSON Formatter & Validator (Tree + CSV Export)   🔹 Password Generator (secure)   🔹 QR Code Generator   🔹 Regex Tester   🔹 Base64 Encoder / Decoder   🔹 Diff Checker   🔹 Color Picker & Converter   🔹 Markdown Preview   🔹 Hash Generator   🔹 Word & Character Counter   🔹 Text Case Converter   🔹 URL Parser   🔹 Time Format Converter   🔹 Embroidery File Viewer 🧵  --- 💡 Built using: Next.js + React + TypeScript + Tailwind CSS --- 👉 Try it here: https://stringtoolsapp.com --- I’m building more tools every week. If there’s something you always wished existed… Drop it in the comments 👇 And if this saves you even 5 minutes, that alone makes it worth it 🙌 --- #WebDevelopment #DeveloperTools #JavaScript #ReactJS #NextJS #BuildInPublic #IndieHacker #SoftwareEngineering #FrontendDevelopment #CodingTools #DevTools #Startups #SideProject #TechIndia #Programming

Proud to announce the launch of StringToolsApp 🚀 Built by our founder Mitul Mandanka, this is a suite of 14 free, privacy-first developer tools — JSON Formatter, Password Generator, QR Code Generator, Color Picker, Markdown Preview, Hash Generator, and more. Everything runs 100% in the browser. No servers. No tracking. At Progragon Technolabs, we build premium web, mobile, and SaaS products that developers love to use. Try it free 👉 https://stringtoolsapp.com #ProgragonTechnolabs #DeveloperTools #WebDevelopment #SaaS #JavaScript #TypeScript #ReactJS #NextJS #FrontendDeveloper #BackendDeveloper #FullStackDeveloper #SoftwareEngineer #SoftwareEngineering #Programming #CodeNewbie #100DaysOfCode #OpenSource #TechCommunity #WebDev #Coding #DevTools #ProductLaunch #Startup #BuildInPublic #SiliconValley #TechStartup

Day 92 of me reading random and basic but important dev topicsss..... Today I read about the modern Fetch API.... If you are still reaching for XMLHttpRequest or unnecessarily bundling heavy external libraries for simple network calls, it's time to leverage the native power of fetch(). It’s modern, versatile, and built directly into all modern browsers. Here is everything every dev need to know about the anatomy of a Fetch request. 1. The Two-Stage Process Getting a response with fetch() isn't a single step; it’s a two-stage promise resolution: Stage 1: The Headers Arrive The promise returned by fetch(url) resolves with a Response object the moment the server responds with headers - before the full body downloads. This is where you check the HTTP status. Note: A 404 or 500 error does NOT reject the promise. A fetch promise only rejects on network failures. Always check response.ok (returns true for 200-299 statuses) or response.status! Stage 2: Reading the Body To actually get the data, you need to call an additional promise-based method on the response. Fetch gives you multiple ways to parse the body: * response.json() - parses as JSON (most common) * response.text() - returns raw text * response.blob() - for binary data with types (like downloading an image) * response.formData() - for multipart/form-data * response.arrayBuffer() - for low-level binary data 2. The Already Consumed Trap Here is a classic gotcha that trips up many developers: We can only read the body once. If we call await response.text() to debug or log the output, and then subsequently call await response.json(), your code will fail. The stream has already been consumed! Summary of a standard GET request: let response = await fetch('https://lnkd.in/e4utYKVK'); if (response.ok) { let data = await response.json(); console.log(data); } else { console.error("HTTP-Error: " + response.status); } Keep Learning!!!! #JavaScript #WebDevelopment #SoftwareEngineering #FetchAPI #FrontendDev

Excited to announce Typedrift v1.0.0! 🎉 A new kind of React data-fetching library that eliminates the most painful part of modern full-stack development: “type drift “ between your frontend components and backend queries. What’s New in v1.0.0 - Props = Query: Define your component’s data needs via TypeScript interfaces, everything else is derived automatically. - Zero boilerplate resolvers with ‘view()’, ‘batch.one()’, ‘batch.many()’ - First-class mutations using ‘action()’ with Zod validation, guards, and built-in redirects - Production-ready: middleware, caching, OpenTelemetry, rate limiting, audit logs - Full React 19 + RSC compatibility - No codegen, no separate query hooks, no manual data wiring Why Typedrift? Because the biggest source of bugs in React/Next.js apps isn’t bad code, it’s “out-of-sync types” between what your component expects and what the server actually returns. Typedrift makes the component prop shape the “single source of truth”. The server must conform. Type safety becomes structural. If you’re tired of maintaining query files, fighting stale types, or dealing with the boilerplate of TanStack Query + Zod + manual wiring… this one’s for you. Check it out: https://lnkd.in/e5HRgUgA Would love your feedback, stars, or contributions! #React #TypeScript #NextJS #FullStack #DeveloperTools

Count the lines of React 18 code you write for every single form submission: const [isPending, setIsPending] = useState(false) const [error, setError] = useState(null) async function handleSubmit(e) {  e.preventDefault()  setIsPending(true)  try { await save() } catch(e) { setError(e.message) }  finally { setIsPending(false) } } Now count the React 19 version: const [state, formAction, isPending] = useActionState(saveAction, null) One line. Same behavior. Automatic pending state, error handling, and reset. That's what React 19 is: the same React, with the boilerplate removed. Here's everything that changed: ⚡ Actions + useActionState — async mutations without manual loading state 🌐 Server Actions — call server functions from client components. No custom API routes. Just 'use server'. 🪜 Server Components — render on server, ship zero JS. Default in Next.js 15. ❤️🔥 useOptimistic — instant UI updates before the server responds. Auto-rollback on failure. ⚙️ use() hook — unwrap promises and read context inside loops, conditions, early returns. 🏠 Native metadata — <title> and <meta> tags from any component. No react-helmet. ❌ No more forwardRef — ref is just a prop in React 19. forwardRef deprecated. 🔍 Better hydration errors — actual diffs instead of "tree will be regenerated". 🤖 React Compiler — automatic memoization at build time. No more useMemo busywork. I wrote the complete guide — every new API with real before/after examples, Server Actions deep dive, and the React 18 → 19 migration steps. Still on React 18? 👇 #React #JavaScript #Frontend #WebDev #ReactJS #100DaysOfBlogging

useEffect is not componentDidMount. It's been five years since hooks came out and I still see this in almost every codebase I touch. The pattern looks like this: a component mounts, someone needs to "do something on mount," so they write useEffect with an empty dependency array and call it a day. Fetch data, set up a listener, update some external thing — all crammed into one useEffect that does three unrelated jobs. Then it grows. Someone adds a cleanup function that doesn't clean up properly. Someone adds another dependency but doesn't understand why the effect now runs twice. Someone wraps the whole thing in an if statement because it fires when it shouldn't. Six months later you're staring at a 40-line useEffect and nobody wants to touch it. Here's what helped me stop writing these: → Most "on mount" effects are actually data fetching. You don't need useEffect for that anymore. TanStack Query, SWR, or even Next.js server components handle it better. Less code, built-in caching, no race conditions. → Event listeners and subscriptions? Separate useEffect for each one. Not one mega-effect. One listener, one cleanup, one purpose. Boring? Yes. Debuggable? Also yes. → If your effect "synchronizes" with some prop or state — check if you actually need it. Half the time a derived variable or useMemo does the job without the extra render cycle. The worst version I've seen: a useEffect that watched a state variable, then set another state variable, which triggered another useEffect. Two re-renders for something that could've been one line of code. If your useEffect has more than 10 lines, something probably went wrong somewhere. #ReactJS #TypeScript #FrontendDevelopment

I built Flowqen — a Form Backend as a Service (BaaS) for developers Tired of building backend logic just to collect form submissions? I built Flowqen to solve that. How it works: → Create a form endpoint from the dashboard → Point your HTML/React form to Flowqen's API → Submissions are captured, stored, and delivered — no backend needed Key features: → Email notifications & auto-replies → Webhook support (Slack, Discord, Zapier) → Google Sheets sync → CSV/JSON data export with search & filtering → File upload support → Spam protection (honeypot + Cloudflare Turnstile) → AI-powered form code generator — describe your form in plain English, get production-ready code → 25+ ready-to-use templates across 12 categories Tech stack: Next.js 16 · React 19 · Tailwind CSS v4 · PostgreSQL · Prisma · Vercel · OpenAI This started as an experiment and turned into a full product with a free tier (200 submissions/mo) and paid plans. Try it out → https://flowqen.com Would love your feedback — drop a comment or DM me! #webdev #saas #nextjs #react #buildinpublic #formbackend #devtools

𝗨𝗻𝗱𝗲𝗿𝗦𝘁𝗮𝗻𝗱𝗶𝗻𝗴 𝗔𝗦𝘆𝗻𝗰/𝗔𝘄𝗮𝗶𝘁 You use fetch().then().catch() and it feels confusing. JavaScript has a cleaner way to handle waiting: async/await. There are two ways to get things done: - Synchronous: You wait for your pizza at the counter. You can't do anything else until it's ready. - Asynchronous: You get a buzzer and walk away. You can do other things while you wait. Two keywords make this work: - async: This function will wait for things. - await: Pause this line until it's done, but let everything else keep running. You can write code in two ways: - Messy: fetchData().then(res => res.json()).then(data => console.log(data)); - Clean: use async and await to get data from an API. async function getData() { try { const response = await fetch('https://lnkd.in/dz48DrYF'); const data = await response.json(); console.log('Got it!', data); } catch (err) { console.error('Oops:', err); } } Remember: - await only works inside async functions. - use try/catch to handle errors. - your app stays responsive. What's your biggest problem with async? Tell us below! Source: https://lnkd.in/g2Dsjh94

Why my API was slow (and what actually fixed it) I recently noticed one of my APIs was taking way too long to respond — sometimes 3–4 seconds per request. At first, I thought it was just my code being “messy,” but digging deeper taught me a lot. Here’s what I found: Too many unnecessary DB calls – I was fetching the same data multiple times instead of reusing it. Unoptimized queries – Some queries were scanning entire collections instead of using indexes. Synchronous loops – I was waiting for each call to finish one by one, instead of running them in parallel. After making a few changes: Added proper indexes Used Promise.all for parallel DB calls Cached repeated data where possible Response time went from 3–4 seconds → under 300ms. The biggest takeaway? Sometimes it’s not your code logic, it’s how your code talks to the database and handles tasks. Small adjustments can make a huge difference. #FullStackDeveloper #WebDevelopment #APIDevelopment #BackendDevelopment #NestJS #NextJS #JavaScript #PerformanceOptimization #SoftwareDevelopment

Stop using useEffect and useState to fetch data. Seriously. Next.js 16 just made your favorite global state management libraries largely obsolete for basic fetching. Okay, maybe "obsolete" is a strong word. Tools like React Query still have a place for complex client mutations. But for 90% of what we build, the data fetching lifecycle has entirely changed. I recently migrated a dashboard to the new Next 16 pattern, and the amount of boilerplate I deleted was staggering. We used to build fragile client-side pipelines: → Component mounts → useEffect fires → loading state toggles → fetch happens → state updates It was messy, prone to race conditions, and caused terrible network waterfalls. Next 16 formalizes a much cleaner flow. First, you initiate your fetch directly in a Server Component. You don't even have to worry about over-fetching because Next automatically memoizes and dedupes the requests across the tree. Second, instead of awaiting everything at the top and blocking the initial page render, you just pass that raw Promise down to your Client Component as a prop. Finally, you unwrap that Promise inside the Client Component using React's new use() hook. Why is this such a massive upgrade? 🚀 Because passing a Promise from server to client natively integrates with Suspense. When you call use(promise), you don't need to manually track isLoading flags anymore. The UI just waits, gracefully shows your fallback boundary, and renders the data when it's ready. It feels weird at first. Passing an unresolved promise down the component tree feels like breaking a rule we were all taught in React 101. But once you see how it strips away dozens of lines of state management and lifecycle hooks, you realize this is how React was always meant to feel. We are finally moving away from managing the mechanics of fetching, and getting back to just building UI. Have you tried passing promises to the use() hook yet, or are you still holding onto your useEffect blocks? 👇 #Nextjs #React #WebDevelopment