Top Rated Plus
AJ

Hi, I'm Agung JK

Chrome Extension Developer

Indonesia
100%
Job Success
Top 1%
Top Rated Plus
3,000+
Hours Worked

Problems I Solve

Specialized Chrome Extension solutions for specific business needs

SaaS Wrapper Extension

The Retention Booster

Problem: SaaS companies lose user engagement because users are lazy to open new tabs to login to their apps.

Solution: I bring your SaaS features directly to the user's browser with Chrome Extension.

Login integration (Auth)Context Menu actionSide panel viewDirect data sync to your database
B2B SaaS Founders (CRM, Project Management, Note-taking apps)

White-Label SEO/Audit Tool

For Agencies

Problem: Digital agencies want to look prestigious to clients but don't have their own branded tools.

Solution: I create your official agency Chrome Extension for SEO audits, pixel checking, or quick analysis.

Re-skinning with your brandMeta tags checkerOn-page SEO auditWhatsApp/Contact integration
SEO Agency, Digital Marketing Agency, Lead Gen Agency

MVP Launchpad

The Validator

Problem: Indie hackers and founders have extension ideas but get stuck in development phase.

Solution: I deliver a ready-to-launch Chrome Extension MVP so you can validate your idea fast.

1 core featurePopup UIUser Auth (Firebase/Supabase)Payment integration (Stripe/LemonSqueezy)
Indie Hackers, Entrepreneurs on Twitter/X

Web Scraper & Automation

Custom Automation Button

Problem: Businesses need data from LinkedIn, Instagram, or Zillow but existing tools are too expensive or don't fit their needs.

Solution: I create simple extensions that inject 'Export to CSV' or 'Save to CRM' buttons on specific websites.

Custom export buttonsCRM integrationLinkedIn/Social scrapingData formatting
Sales Teams, Recruiters, Real Estate Agents

My Services

Comprehensive browser extension services to enhance your web experience

Chrome Extension Development

Custom Chrome extensions with Manifest V3, content scripts, and background workers for enhanced browser functionality.

Cross-Browser Extensions

Extensions compatible with Chrome, Firefox, Edge, and Safari using modern web extension APIs.

Browser Automation

Automated workflows and productivity tools that streamline repetitive browser tasks.

Extension Maintenance

Migration to Manifest V3, performance optimization, and ongoing support for existing extensions.

Client Testimonials

What my clients say about working with me

Agung delivered exceptional work on our Chrome extension. His expertise in Manifest V3 and attention to detail made our project a success.

Client from USA
Startup Founder

Professional, responsive, and highly skilled. Agung understood our browser extension requirements perfectly and delivered beyond expectations.

Client from Germany
Product Manager

One of the best extension developers I've worked with on Upwork. Great communication and top-quality code.

Client from Australia
CTO

Get In Touch

Have a project in mind? Let's discuss how I can help bring your ideas to life.

Let's Work Together

I'm always open to discussing new projects, creative ideas, or opportunities to be part of your vision. Feel free to reach out through any of the channels below.