The signal in the feed.

Chip Off the Old Block

I built a CSS Minifier and Beautifier — browser-only, compression stats, 80 tests

Most CSS minifiers send your code to a server. I built a free, browser-only CSS Minifier and Beautifier that processes everything locally and shows you compression stats. https://devnestio.pages.dev/css-minifier/ Minify: removes comments, whitespace, trailing semicolons before closing braces Beautify: reformats minified CSS back to readable indented form Stats: before/after bytes, bytes saved, compression percentage, rule count Options: keep comments, keep last semicolon Swap input/output for qu

I built a Robots.txt Generator — visual bot picker, AI crawler presets, download, 84 tests

Writing robots.txt by hand means remembering the exact syntax and knowing which bot names to use. I built a free, browser-only Robots.txt Generator with visual bot selection and AI crawler presets. 👉 https://devnestio.pages.dev/robots-txt-gen/ Bot chips — toggle Googlebot, Bingbot, GPTBot, CCBot, anthropic-ai, Applebot, or any custom user-agent Allow/Disallow rules — add paths with quick buttons Templates — Allow all, Block all, Block AI crawlers, SEO-friendly, WordPress standard Crawl-delay an

I built a browser-only JSON to TypeScript Interface Generator — nested objects, arrays, options, 86 tests

When integrating a new API, the first thing I do is convert the JSON response to TypeScript interfaces. I built a free, browser-only JSON to TypeScript Interface Generator that handles nested objects, arrays, null, and union types. 👉 https://devnestio.pages.dev/json-to-typescript/ Auto-detect types — string, number, boolean, null, nested object interfaces, T[] arrays Nested interfaces — generates sub-interfaces for nested objects automatically Array handling — infers item type from first elemen

I built a browser-only HTTP Cookie Inspector — parse Set-Cookie, security score, XSS/CSRF flags, 84 tests

HTTP cookies are everywhere in authentication, sessions, and tracking — but reading Set-Cookie headers manually is tedious. I built a free, browser-only HTTP Cookie Inspector that parses cookie strings and gives you a security analysis. 👉 https://devnestio.pages.dev/cookie-inspector/ Parse Set-Cookie strings — extract all attributes at a glance Attribute cards — name, value, expires/max-age, domain, path, Secure, HttpOnly, SameSite Security score (0–100) — +25 for Secure, +25 for HttpOnly, +25

Working With Massive JSON Responses

Working With Massive JSON Responses Without Losing Performance Every developer eventually encounters it. You make an API request expecting a few hundred objects, and instead receive a response that's tens—or even hundreds—of megabytes. Suddenly your browser freezes, your editor becomes sluggish, and your application consumes gigabytes of memory. Large JSON responses aren't unusual anymore. Analytics platforms, cloud providers, search engines, AI services, ecommerce catalogs, IoT systems, and dat

I built a browser-only JWT Creator & Signer — HS256/384/512, verify, expiry check, 77 tests

Debugging JWT authentication usually means copying tokens between tabs and tools. I built a free, browser-only JWT Creator & Signer — create, sign, and verify JWTs entirely in your browser using the Web Crypto API. 👉 https://devnestio.pages.dev/jwt-creator/ Create JWTs — edit header (alg, typ) and payload (any JSON) Sign with HMAC — HS256, HS384, or HS512 Quick claim buttons — insert sub, name, exp (+1h), iss with one click Generate random secrets — 256-bit hex secret via crypto.getRandomValues

Mexico’s Victory Over Ecuador Made the Ground Shake. Was It an Artificial Earthquake?

Fans’ euphoric reactions to the Mexican national team’s recent victory in the 2026 World Cup caused a series of unusual vibrations that were detected by seismic warning systems.

Website selbst bauen mit Wix vs. Agentur beauftragen: Was lohnt sich für kleine Unternehmen? (2026)

Baukasten oder Profi? Das ist für die meisten Selbstständigen und kleinen Betriebe die erste Grundsatzfrage vor der eigenen Website. Beide Wege haben ihre Berechtigung — die falsche Wahl kostet aber entweder Geld oder Monate. Hier ein ehrlicher Vergleich ohne Verkaufsdruck. Pro: Günstig im Einstieg (ab ~12–25 €/Monat inkl. Hosting) Sofort loslegen, keine Wartezeit Volle Kontrolle, jederzeit selbst änderbar Für eine einfache "Visitenkarte im Netz" oft völlig ausreichend Contra: Zeit ist der verst

Pull Polymarket Prediction Market Data With No API Key

Prediction markets like Polymarket price real world questions as tradable YES and NO shares, which makes them a clean signal for elections, crypto, sports and macro events. The useful part: all of the data is served by public JSON endpoints, so you can read markets, prices and trades with no login and no API key. Here is how the pieces fit together. Polymarket exposes three hosts, all keyless: Gamma, for market metadata: https://gamma-api.polymarket.com CLOB, for the live order book and price hi

Building Invesmal: An AI-Powered Startup-Investor Matching Platform with Laravel

As a final-year Software Engineering student, I wanted my Final Year Project to be more than just another CRUD application. That's how Invesmal came to life a Laravel-based platform that connects startups, investors, and mentors using AI-driven matching. The Problem What Invesmal Does A core matching engine connecting startups with relevant investors Skills and personality analysis for founders Goal-based matching between mentors and mentees Compatibility scoring between startups and investors A

Bulk Indexing Your URLs, Automated (No More One-by-One API Calls)

If you've ever tried to get more than a handful of URLs indexed by Google, you already know the pain: Google's Indexing API works fine for one page — and then falls apart the moment you're dealing with hundreds. Here's what that actually looks like, why it breaks down at scale, and how I ended up automating it. Google's Indexing API is straightforward for a single request: async function submitUrl(url) { await jwtClient.authorize(); const res = await fetch( 'https://indexing.googleapis.com/v3/ur