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Last week a critical XSS landed in SunEditor, a rich-text editor a lot of applications embed. CVE-2026-59167, CVSS 10, fixed in 2.47.11. The advisory'
I built a free API client that runs in the browser as part of Tool Reign. It isn't open source, so there's no code in this post. But the design decisi
I asked myself this while building NitroIDE, and the honest answer wasn't my typing speed, my bundler, or my machine. It was the wait between change a
I build Korean data tools at WebiStudio. This tutorial uses our paid Korean Reviews Bundle Actor on Apify to export public product reviews from Olive
Creating a Live Cricket Score App: From API Response to User Interface Building a live cricket score app is a practical way to learn how APIs, JavaSc
The last thing I wrote here was about two bugs my own test suite could not see. Both came from the same place: a stream that stops in the middle, and
If you've ever built a live scoreboard with setInterval and fetch, you know how it goes: it works in the demo, then feels laggy in production, burns y
I was tired of slow, ad-filled tool websites that upload my data to their servers just to format a JSON file. So I built VelnoxLabs — 51 free browser
When you list a product on AppSumo, AppSumo handles the sale and nothing after it. The buyer walks away with a single code string. Turning that string
Most developers type: npm install and think: “npm is downloading my dependencies.” That's only part of the story. Depending on your proj
The First 10 Minutes Decide Your System Design Interview Your final diagram will be photographed, glanced at for three seconds, and forgott
So You Wanna Build a React Native App? Let's Talk Expo! Ever dreamt of building that slick mobile app that runs on both iOS and Android wit
The biggest barrier in Web3 isn't cryptography it's vocabulary. Most users bounce off dApps because interfaces speak in backend jargon instead of huma
最开始，我其实只想做一个很简单的反应测试。 等屏幕变色，马上点一下，然后看看自己用了多少毫秒。 规则简单得几乎不用解释，我当时也觉得这种页面应该很快就能做完。 真正自己连续测了很多次以后，我才发现，麻烦的地方并不是“怎么计时”，而是另外一个问题： 一次测出来的数字，到底能说明什么？ 同一
At work I built an internal tool for our team's hardware inventory, service logins, environment variables and vendor bills. Because it holds credentia
The scenario every team knows Sprint's almost done. Someone asks: "did we test what happens when the payment gateway times out during check
Most cost reduction advice for AI APIs focuses on switching to cheaper models. That works, but it trades quality for savings. These techniques reduce
I use bookmark keywords all day. Type "jira" in the address bar, hit enter, and you're on the board. Firefox gives a keyword the top "Visit" suggestio
Building a Post-Purchase Tracking Widget for Shopify FTC Disclosure: I'm the developer of Parcelglance, the Shopify tracking widget discus
PDF manipulation used to mean server-side tools. pdf-lib changed that. It's a pure JavaScript library that runs in Node.js and the browser. No native