I timed every free in-browser Whisper transcriber
Originally published on mastershot.app . Mastershot's audio to text runs OpenAI's Whisper in your browser, so your recording never leaves your compu…
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How Chrome Extensions Actually Make Money
Publishing a browser extension to an app store is straightforward, but setting up a sustainable business model requires solving architectural challe…
A 421M encoder beat a 1.5B LLM at running my agent, inside a browser tab
layaAgent: an AI agent where a small typed-decision encoder makes the routine decisions, a local LLM or a person takes the steps it is unsure about,…
You Probably Don’t Need a Backend for That — Modern Browsers Can Do More Than You Think
Developers love building backends. APIs. Databases. Authentication. Servers. Queues. Cloud functions. But sometimes we add a backend simply because…
Stop Debouncing Resize. The Browser Already Watches It.
Your dashboard has a sidebar that collapses into icons under 900px. Someone on the team drags the browser window slowly from a wide monitor to a nar…
Octoweb 0.15: page memory, link hints, private tabs
I shipped Octoweb 0.15.0 nine days after 0.14.0, and it's the largest release since launch: 46 files changed, about 5,100 lines added, and two new M…
Keeping a browser video and a locally processed audio track in sync — and the 0.2s leak that broke it
We build [ HaramLite ]( https://haramlite.com ) , a desktop app that removes music and instrumentals from video and audio on the user's own machine…
What Actually Happens When You Type a URL in Your Browser?
Have you ever wondered what happens after you type something like: https://dev.to and press Enter ? It looks instant. But behind that one click, you…
Those Share Buttons Are Guessing What's On My Phone
Scroll to the bottom of almost any blog post and you'll find the same five icons: a bird that got rebranded two years ago, a lowercase "f" in a circ…
What a Browser Extension's Test Suite Cannot Reach
Longshot is a Firefox screenshot extension I wrote to replace FireShot: full page, visible area, drag region and element capture, an editor with ele…
[Перевод] Делимся состоянием приложения через URL
В моём проекте пользователям нужно было делиться состоянием приложения через URL, не отправляя данные на сервер. Я описал, с какими ограничениями ст…
The await That Silently Breaks navigator.clipboard.writeText()
Someone on your team ships a "Copy invite link" button. It fetches a fresh, single-use link from the API, then copies it to the clipboard so the use…
What Browserslist Actually Does in Next.js
We set up three near-identical Next.js 16 projects to answer a simple question: if you set a browserslist target in package.json , does the build ch…
Why Sweating the Details Matter: Flask, port 5000, localhost, Safari and macOS
Pop quiz : Suppose you are developing a Flask app. Flask uses port 5000 as its default port. Now suppose that you have your Flask app running on mac…
You Probably Don't Need a Server For That
You Probably Don't Need a Server for That A few months ago I needed to convert about forty HEIC photos from my phone into PNGs. The first three resu…
One version bump, 40 files to edit. Import maps fix that.
grep -rl "esm.sh/[email protected]" src/ came back with forty-one files. Forty-one places where the same CDN URL, pinned to the same version, was ty…
Why I Built Another Browser Automation Platform
Browser automation is already a solved problem. At least, that's what I thought before I started working on Figranium. There are excellent projects…
You Press Enter After Typing a URL. Here's Everything That Happens Next.
You type: https://example.com Press Enter . A few milliseconds later, the website appears. Simple, right? Not really. 😄 Behind that single Enter key…
Making a dog talk with zero backend. 🐶✨ Built an entirely client-side pipeline to animate talking pets: - ✂️ In-browser image segmentation - 👄 Real-time WebGL lip-syncing - 🎬 Native MP4 export (all in the browser) No servers, no GPU compute bills
Making a dog talk with zero backend: in-browser segmentation, WebGL lip sync and real MP4 export DEV Weekend Challenge: Dog Days Edition Submission…
Does React Break HTML Rules? Let's Find Out
Can React create HTML that the browser itself wouldn't allow? Sounds wrong, right? That's what I thought too. But while experimenting with React, I…
Go-juggler и протокол Juggler
ИИ-агентам нужно ходить по настоящему вебу. Но настоящий веб враждебен к автоматизации: Playwright блокируют, headless-версия Chrome палится по отпе…
Debugging Complex Pointer and Touch Event Interactions in Mobile Browsers
Ever tried to build a smooth swipe or pinch gesture on mobile only to find it firing weird events, missing touches, or blocking scroll? If you’ve be…
I solved a 5 year old bug
This is a submission for DEV's Summer Bug Smash: Smash Stories powered by Sentry . Introduction Let me start by saying I am an Open-source contribut…
How Browsers Implement Native Focus Rings and Their Accessibility Implications
Ever had that moment when you tab through a form and suddenly the familiar glowing outline appears around a button or input? That subtle highlight,…
Brute forcing my way to better HTML > DOCX conversion
About 10 years ago I fell in love with Vue.js. The easy-to-learn syntax and reactivity were a joy to work with, and HMR (hot module replacement) add…
I Built a Browser From Scratch, and It Finally Renders the World's First Website Like Chrome Does
A while back I set myself a slightly unhinged goal: build a web browser from scratch in Node.js and Electron no external HTML/CSS/layout libraries,…
Prisma can now work in your browser, expo/react-native apps? — meet forge-orm
I love Prisma. I have shipped Prisma to production more times than I care to count. It changed how a lot of us write TypeScript against databases. B…
Writing unit test for Firefox private browsing window
Our indicator looks like this: an icon + a label. The browser has an indicator for when a user is in private mode. The indicator lives in two places…
You Don't Need MIDI-OX Anymore: Building a SysEx Librarian with the Web MIDI API
You Don't Need MIDI-OX Anymore: Building a SysEx Librarian with the Web MIDI API If you own a Yamaha DX7 or a Roland Juno-106, you already know the…
Browser Security Model: The Defensive Walls Every Hacker Knows (And Every Developer Should Too)
"To defend a system, you must first think like the attacker." I'll tell you this: the browser is one of the most hostile execution environments ever…