DEV Community: Sujit chowdhury

🔍 How to Build a Full-Duplex AI Voice Agent for Shopify (Free HTML/JS Embed)

Sujit chowdhury — Tue, 22 Sep 2026 10:03:48 +0000

**🔍 Key Technical Challenges in AI Voice Support
Building a real-time voice agent for e-commerce requires solving three core technical bottlenecks:

Sub-800ms Latency: Standard Speech-to-Text (STT) + LLM + Text-to-Speech (TTS) pipelines introduce a 2-3 second delay. Full-duplex WebSockets are required to maintain conversational flow.

Barge-In (Interruption Management): Allowing customers to cut off the AI naturally mid-sentence without crashing the audio stream.

E-Commerce Action Execution: Fetching order statuses, processing subscription skips, and triggering abandoned cart workflows dynamically via API calls.

💻 HTML & JavaScript Live Integration Widget
Copy and paste the lightweight snippet below into your web project to create an instant voice trigger widget:
`

`javascript
// SupportAI Live Voice Call Trigger
function initiateVoiceSupport() {
console.log("Connecting to SupportAI Engine...");
window.location.href = "https://api.omnitoolaz.com";
}

document.getElementById("support-btn").addEventListener("click", initiateVoiceSupport);
`
⚡ Try the Live Demo
Test the live voice support agent in your browser without any installation:

👉 Live Interactive Demo: https://api.omnitoolaz.com

💬 Discussion
What strategies are you using to optimize WebRTC/WebSocket audio streaming in production? Drop your thoughts below!

🎙️ I Built SupportAI: A Full-Duplex AI Voice Agent for Shopify/D2C Stores (Here’s How You Can Test It)

Sujit chowdhury — Tue, 22 Sep 2026 09:01:32 +0000

Hey DEV Community! 👋

Managing customer support and recovering abandoned carts for e-commerce stores using traditional text-only chatbots often feels clunky. Customers drop off, issues get delayed, and midnight support tickets sit unanswered.

To solve this, I built SupportAI—a full-duplex, low-latency AI Voice Agent designed to handle real-time customer conversations over voice calls.

⚡ What Makes Full-Duplex Voice Tricky?
Unlike standard STT (Speech-To-Text) -> LLM -> TTS pipelines that feel slow with 2–3 second delays, full-duplex voice agents need:

Ultra-Low Latency: Natural conversational turn-taking (sub-800ms response window).

Interruption Handling (Barge-in): If the customer speaks while the AI is talking, the AI must instantly stop and listen.

E-Commerce Context: Dynamic execution of actions like checking order status, handling skips/swaps, or recovering abandoned carts in real time.

🚀 Try It Out Live
You can test the full-duplex voice agent live in your browser without signing up:

👉 Live Voice Demo: https://api.omnitoolaz.com

💬 Feedback & Discussion
I’d love to hear your thoughts!

How are you currently handling voice AI or latency in WebRTC pipelines?

What e-commerce integrations (Shopify, WooCommerce, Custom APIs) would you like to see next?

Drop a comment below! 👇

I Built an AI Customer Support Agent That Learns From Any Website 🤖

Sujit chowdhury — Wed, 29 Jul 2026 11:23:55 +0000

After weeks of experimenting, I finally built an AI support assistant that can train itself using a company's own website and knowledge base.

Instead of manually writing hundreds of FAQs, the chatbot crawls website pages and answers customer questions using that content.

What it can do

✅ Crawl website pages and build a knowledge base

✅ Answer product, shipping, return, and policy questions

✅ Reduce repetitive customer support tickets

✅ Works 24/7

✅ No-code setup

I recently created a demo using an eCommerce fashion store, and it answered questions based on the website content instead of using generic AI responses.

One thing I learned while building this project:

The quality of an AI chatbot depends far more on the quality of its knowledge base than on the LLM itself.

Next on my roadmap:

Better website crawling
Automatic re-training
Shopify integration
Analytics dashboard
Human handoff
Multi-language support

I'd love feedback from developers:

If you were building an AI customer support tool today, what feature would you consider essential?

Demo:
https://support-ai-3bba5c.netlify.app/

AI #LLM #Chatbot #Shopify #CustomerSupport #WebDevelopment #SaaS #IndieHackers #BuildInPublic #MachineLearning #Developer #OpenSource

🎮 I Built and Published My First Logic Puzzle Game: Arrows Puzzle Game Master

Sujit chowdhury — Sun, 12 Jul 2026 02:16:35 +0000

I'm excited to share a project I've been working on—Arrows Puzzle Game Master, a minimalist Android puzzle game that challenges players to think strategically by solving arrow-based logic puzzles.

The gameplay starts simple but becomes increasingly challenging as new mechanics and level complexity are introduced.

✨ Features
🧩 Addictive arrow-based logic puzzles
📈 Progressive difficulty with multiple levels
🎨 Clean and distraction-free interface
⚡ Lightweight and optimized for Android
🧠 Improves logical thinking and pattern recognition
📱 Smooth gameplay on a wide range of devices

Building this game helped me learn more about mobile game design, puzzle mechanics, UI optimization, and publishing an Android app.

I'd really appreciate your feedback and suggestions for future updates. New levels, gameplay mechanics, and additional game modes are already planned.

📲 Download the game

Download Arrows Puzzle Game Master on Uptodown

Or visit:
https://arrows-puzzle-game-master.en.uptodown.com/android

If you try it, I'd love to hear what you think and which level challenged you the most!

Android #GameDev #IndieDev #PuzzleGame #MobileGaming #LogicGame #BuildInPublic #Developer #AndroidStudio #Uptodown #Programming #GameDevelopment

🚀 Free Online Invoice Generator for India – Built on ToolBox Hub (Omnitoolaz.com)

Sujit chowdhury — Wed, 24 Sep 2025 07:32:23 +0000

Hey Devs 👋

I recently launched a new free tool on ToolBox Hub
called Invoice Generator – a simple, fast, and reliable way to create professional invoices online without hassle.

🔧 What is it?

It’s a free invoice generator tailored for India, designed for freelancers, startups, and small businesses. With just a few clicks, you can:

Create GST and non-GST invoices

Customize invoice number, logo, client details, and payment terms

Download invoices instantly in PDF format

Save time by avoiding manual invoice formatting

💡 Why I built it

As a freelancer and tool enthusiast, I noticed many invoice generators are either locked behind subscriptions or overloaded with features. I wanted something:

Free 🆓

Lightweight ⚡

India-ready (GST support) 🇮🇳

No signup required 🙌

So I added it to ToolBox Hub – OmniToolaz.com, my growing collection of free online tools (covering finance, productivity, fitness, and utilities).

🌐 Try it out

👉 Free Invoice Generator – Omnitoolaz.com

🛠️ What’s next

I’m planning to add:

Save & retrieve past invoices

Multi-currency support

Branded templates for businesses

🤝 Feedback

Would love your feedback and feature suggestions!

What’s missing that you’d need in an invoice generator?

Should I make it exportable to pdf, Excel/CSV as well?

💬 Drop your thoughts below, or DM me. Your input will help shape the next update of ToolBox Hub 🚀

📢 Hello Dev Community! 👋 Check out the newly revamped ToolBox Hub!

Sujit chowdhury — Wed, 13 Aug 2025 16:46:16 +0000

We're excited to announce a major update to ToolBox Hub, your ultimate destination for free online tools! We've listened to your feedback and have implemented a range of advanced features and a sleek, enhanced design to make your experience even better.

What's new?

Smart Search Bar: Finding the right tool is now faster than ever! Our new intelligent search bar allows you to quickly discover any available tool across all categories.

Enhanced Health & Fitness Tools: Explore our upgraded suite of health and fitness utilities, designed with advanced calculations and user-friendly interfaces.

Advanced Finance Section: Dive into our improved finance category, featuring a sophisticated GST Calculator for our Indian users 🇮🇳, alongside accurate EMI Calculators and real-time Currency Converters.

And More! We've refined the design and performance across the entire platform to ensure a seamless and efficient user experience.

Whether you're a developer needing a quick utility, a finance professional looking for precise calculations, or someone focused on health and fitness, ToolBox Hub has something for you. All our tools remain absolutely free to use!

Give the new ToolBox Hub a spin and let us know what you think! We're always looking for feedback to make it even better.

onlineTools #freeTools #developerTools #utilityTools #healthTools #financeTools #GSTCalculator #India #EMICalculator #CurrencyConverter #webdev #productivity #newFeatures #enhancedDesign #ToolBoxHub #omnitoolaz

ToolBox Hub: Now Live with 30+ Free Tools at `omnitoolaz.com

Sujit chowdhury — Fri, 08 Aug 2025 03:59:39 +0000

Hello, everyone! I'm excited to announce that ToolBox Hub has been upgraded with new features and has a brand-new home.

Our website, which you may know as dev-toolshub.blogspot.com, has officially migrated to a new, professional domain: https://omnitoolaz.com.

What's new and improved?

We've been hard at work to make your experience even better. ToolBox Hub is a free, browser-based platform with over 30 online utilities designed to simplify your daily tasks. The best part? There is no sign-up required, and all the tools are completely free to use.

Our updated suite includes a variety of tools across different categories:

Financial Calculators: Get instant calculations with our BMI calculator, EMI calculator, and SIP planner.
Image Tools: Our popular tools, such as the image compressor and favicon generator, have been updated for better performance.
Fitness & Productivity: Find tools like a plateau tracker, workout calendar, and more to help you stay on track.

We're committed to providing high-quality tools that are accessible and easy to use. I'd love for you to check out the new site and tell me what you think.

Visit the new ToolBox Hub here: https://omnitoolaz.com

ToolBox Hub: Now Live with 30+ Free Tools at omnitoolaz.com

webdev

development

programming

tools

utilities

calculator

financialtools

imageeditor

bmi

sip

emi

favicon

freetools

Building a Free Toolbox of Online Tools for Developers and Everyone Else

Sujit chowdhury — Wed, 06 Aug 2025 11:38:22 +0000

Hey Dev Community,

I'm excited to share a project I've been working on: OmniToolaz.com. It's an all-in-one hub for free online tools, created to solve a common problem—the need for a single, reliable place to find and use various utilities without the clutter of a dozen different browser tabs.

You may have known this project by its previous name, "ToolBox Hub." The journey to migrate it to its own domain, omnitoolaz.com, was a challenge, but it's now live and ready for use. I wanted to share this with the community and get some feedback.

What's in the box? We've built a diverse set of tools to help with everything from development and SEO to daily productivity.

Small SEO Tools: Quickly check your website's health, analyze keywords, and perform other essential SEO tasks. These are perfect for developers launching new projects.
Productivity Tools: A collection of handy utilities like converters, calculators, and more to streamline your workflow.
Health and Fitness Tools: A small set of tools to help you with personal wellness.
And more... We also have a section for fun games to help you take a quick break.

The goal is to create a simple, fast, and completely free platform. There's no login required, no hidden costs—just useful tools ready to go.

My Ask to the Community

This project is a work in progress, and your feedback is invaluable. I'd love for you to check out the site, try some of the tools, and let me know what you think.

What kinds of tools would you find most useful?
Are there any features you'd like to see added?
Any suggestions for improving the user experience?

I'm committed to growing this platform and making it a truly useful resource for the development community and beyond.

Check out the project: https://www.omnitoolaz.com

I look forward to hearing your thoughts!

🌐 Currency Converter Upgraded – Real-Time, Accurate & Now More Powerful Than Ever! 💱

Sujit chowdhury — Wed, 30 Jul 2025 01:55:40 +0000

🌐 Currency Converter Upgraded – Real-Time, Accurate & Now More Powerful Than Ever! 💱

ToolBox Hub – Your All-in-One Free Online Tools Website

Are you tired of outdated or cluttered currency converters? We’ve just upgraded our Currency Converter Tool on ToolBox Hub – and it’s packed with more features, speed, and precision than ever before!

⚡ What’s New in the Upgraded Tool?

✅ Real-Time Exchange Rates – Access current data for 150+ global currencies including USD, EUR, INR, JPY, GBP, and more.
✅ Smart Auto-Detect Input – Automatically detects your currency based on location (IP-based logic).
✅ Multi-Currency Display – View conversion results across multiple currencies at once.
✅ Historical Data Insights – Instantly check the last 7 days of currency trends.
✅ Clean, Responsive UI – Works smoothly on all devices – desktops, tablets, and smartphones.
✅ Fast and Lightweight – Lightning-speed conversion without reloading pages.
✅ Dark Mode Support – For all-night coders and developers out there. 🌙

🧠 Why Use ToolBox Hub's Currency Converter?

🔹 Built for speed and simplicity
🔹 Trusted exchange data with reliable accuracy
🔹 Developer-friendly interface
🔹 No signups. No ads. Just clean conversion.
🔹 Completely free to use

🚀 Try It Out Now

Check out the updated tool directly here:
👉 Currency Converter – ToolBox Hub

And while you're at it, explore 20+ other powerful tools on ToolBox Hub – from Fitness Trackers, Finance Tools, Image Editors, to SEO Utilities.

💬 Connect with Us

Got feature suggestions or want to collaborate? Drop a message on our Business WhatsApp – we’re always open to ideas and feedback!

🔖 Tags

#currencyconverter #webdev #javascript #tools #devtools #toolboxhub #api #exchangeRates #productivity #opensource

🚀 ToolBox Hub: 20+ Free Online Tools – All in One Handy Web App

Sujit chowdhury — Tue, 29 Jul 2025 04:08:00 +0000

ToolBox Hub 🧰 – Free, Fast & Browser-Based Tools for Everyone

Hi DEV fam! 👋

I'm excited to share a personal project I’ve been working on — ToolBox Hub — a classic blog-themed web app that brings together 20+ free browser tools in one simple interface. 🎯

🌐 About the Project

ToolBox Hub is designed for everyday users and creators who need lightweight tools on the fly — no downloads, no logins, no bloat.

🔧 Built as a single-page HTML app with categorized tool sections like:

💪 Fitness & Health: BMI, BMR, Keto Macro, TDEE calculators
🖼️ Image Tools: Compressor, Image-to-Text (OCR), Resizer
💸 Finance Utilities: EMI & SIP calculators, Unit converters
🎮 Mini Browser Games: Time pass and brain refreshers
🧠 Text & Utility: Case converter, Word counter, QR generator, and more

🛠️ Why I Built It

I often found myself jumping across multiple sites to use basic tools — so I decided to put them all under one roof.

✅ 100% client-side

✅ Blogger-powered HTML

✅ Minimalist & mobile-friendly

✅ GitHub sitemap submitted for indexing

🔗 Live Site: https://www.omnitoolaz.com/

🚀 Upcoming Features

Tool search & filters 🔍
Dark mode 🌙
PWA version 📲
More productivity-based widget💬 Feedback Welcome!

I'd love to hear your feedback, ideas, or suggestions!

If you’ve built something similar or want to collaborate on tool ideas — let’s connect.

Tags:
#webdev #html #opensource #productivity #tools #keto #javascript #devproject

🚀 Introducing ToolBox Hub – Your All-in-One Suite of Free Online Tools

Sujit chowdhury — Mon, 28 Jul 2025 07:45:30 +0000

🧰 Introducing ToolBox Hub – Your All-in-One Suite of Free Online Tools

Hey DEV community! 👋

I’m excited to share a project I’ve been working on passionately — **ToolBox Hub: a free online platform offering a growing collection of helpful tools for developers, designers, creators, and everyone in between.

🌐 Visit the site: (https://dev-toolshub.blogspot.com) to https://omnitoolaz.com/

🔧 What is ToolBox Hub?

ToolBox Hub is a web-based toolbox that combines 20+ utilities into a single platform, designed for everyday productivity and tech needs. Whether you're coding, creating, or calculating — there's a tool for you.

🚀 Features and Tools

✨ Fitness & Health Tools

BMI Calculator
BMR & Calorie Analyzer
Keto Macro Planner
Breathing Exercise Guide

🖼️ Image & Design Tools

Social Media Image Resizer
Image to Text Extractor
File Compressor (coming soon)

💰 Financial & Utility Tools

EMI Calculator
SIP Planner
Unit Converter
Age & Date Calculator

🎮 Fun & Games

Typing Speed Test
Mini Challenges (more launching soon!)

🧠 Why I Built It

As a full stack dev and indie maker, I often found myself switching between multiple websites for basic tasks. So I thought: why not bring everything into one hub** with a clean, responsive UI and no login required?

My goal is to help creators, students, and professionals save time and get things done — all from a single place.(https://dev-toolshub.blogspot.com/))

🛠️ Built With

Frontend: HTML, CSS, JavaScript
Backend: Node.js, Firebase, Google Sheets API
Deployment: Netlify, Cloudflare
Extras: Responsive Design, Dark Mode (coming soon!)

🗺️ What’s Next?

✅ Adding AI-powered tools

✅ Blog posts + tool tutorials

✅ Chrome extension version

✅ Open-source mini-tools for contributors

🙌 Let’s Connect!

I’d love your feedback and suggestions! Feel free to test out the tools and let me know what features you'd like to see.

🔗 Try it now: https://dev-toolshub.blogspot.com
💬 Drop a comment below

🐦 Or connect with me on LinkedIn: https://www.linkedin.com/in/sujit-chowdhury-3890641b8?utm_source=share&utm_campaign=share_via&utm_content=profile&utm_medium=android_app

Thanks for reading — and happy building! 💪

CodeCreateShare #ToolBoxHub #ProductivityTools