You will get Google Chrome Extension & API Integration
Top Rated
Top Rated
Project details
You will get a fully custom Google Chrome extension built with clean, maintainable, and scalable code. I handle the complete development from architecture to final delivery, including background services, storage management, content scripts, UI design, and smooth communication between every part of the extension. Your tool will integrate seamlessly with any API you use, support secure authentication if needed, and run efficiently on all modern browsers. I ensure a polished, reliable extension that matches your exact workflow and is ready for real-world usage or publication on the Chrome Web Store.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
DesignWhat's included
| Service Tiers |
Starter
$50
|
Standard
$150
|
Advanced
$300
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 7 days |
Number of Revisions | 2 | 2 | 2 |
Install Script | |||
Test Script | |||
Task Automation |
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EM
Edgard M.
Aug 8, 2026
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Good developer. Delivered the required work as expected and maintained clear communication throughout.
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Abdulrehman J.
Feb 24, 2026
Front-End Chrome Extension Developer (Vue.js + TypeScript)
Good work. Thank you
SS
Siraj S.
Dec 15, 2025
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Highly recommend him for anything regarding chrome extensions!. good to work with.
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Nainil C.
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Amazing freelancer! He is really good with automation and is a full-stack developer. Not only did he help my core requirement but gave suggestions to make things better. Will definitely hire again.
About Kossi Junior
Chrome Extension & Full Stack Dev | Scraping React/Vue/Python/Node
100%
Job Success
Lome, Togo - 4:03 am local time
I build full-stack web applications, automation tools and Chrome extensions.
Most of my recent work focuses on Manifest V3 Chrome extensions, involving complex DOM manipulation, data extraction pipelines, and browser-based media processing.
I’ve developed extensions for screen recording (with crop/trim editing), content scraping, AI-powered auto-reply systems, and LinkedIn data automation tools.
On the full-stack side, I work with modern technologies like React, Vue/Nuxt, and TypeScript on the frontend, and Node.js or Python on the backend.
Recently, I built a SaaS marketplace platform (Vue/Nuxt + Python), where I handled the architecture, frontend, and backend across 4 major milestones.
Tech I use daily:
Chrome Extension APIs (Manifest V3), WXT framework
React, Vue.js, Nuxt, Next.js, TypeScript, Tailwind CSS
Node.js, Express, Python, FastAPI
Playwright, Puppeteer (automation & scraping)
Canvas API, MediaRecorder, Web Audio (media processing)
MongoDB, PostgreSQL, REST & GraphQL APIs
I’m highly responsive (usually within a few hours) and consistently deliver on time.
All my contracts have been completed with 5-star reviews.
Core Skills (prioritized):
Google Chrome Extension
Web Scraping
React
TypeScript
Vue.js
Node.js
Python
Automation
Next.js
API Integration
Web Application
Steps for completing your project
After purchasing the project, send requirements so Kossi Junior can start the project.
Delivery time starts when Kossi Junior receives requirements from you.
Kossi Junior works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery & Requirements Gathering
We’ll define your SaaS idea, features, target users, and tech preferences.
Development Phase
I build the core features: user auth, dashboard, admin panel, and API integrations.