I will develop a custom chrome extension or browser extension for your workflow

H
ha_le_dev
H
ha_le_dev
Ha Le
develop a custom chrome extension or browser extension for your workflow
develop a custom chrome extension or browser extension for your workflow
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develop a custom chrome extension or browser extension for your workflowdevelop a custom chrome extension or browser extension for your workflowdevelop a custom chrome extension or browser extension for your workflowdevelop a custom chrome extension or browser extension for your workflowdevelop a custom chrome extension or browser extension for your workflow

About this gig

Need a custom Chrome extension or browser extension that saves your team an hour a day, scrapes or highlights what you need on any page, or adds your own button to a site you use every day? I build it.


What you get

A Manifest V3 extension that does one job well, with the fewest permissions needed.

Popup, side panel, options page or content script that changes the page itself, depending on what you need.

Sync, storage and API calls in the larger packages, plus help publishing to the Chrome Web Store.

Clean, documented code you own, and a short video showing how it works.


Why me

I build browser tools and full stack apps for a living. The sample in the gallery, Page Notes, keeps highlights and notes on any page and brings them back on the next visit, with 12 browser checks and only 3 permissions.


Send me the site or workflow, what should happen when you click, and a screenshot if you have one. I reply within a few hours with a plan and a fixed price.

  • Programming language

    • HTML & CSS

  • Expertise

    • Debugging
    • Performance
    • Security
    • Design
    • Testing procedures

  • Frontend framework

    • React.js
    • Tailwind CSS

  • Backend framework

    • Express.js
    • FastAPI
    • Node.js

Get to know Ha Le

Ha Le

Full Stack Developer for React Native, Node and Python

  • FromUnited States
  • Member sinceSep 2026
  • Avg. response time15 hours

  • Languages

    English
Full stack developer shipping React Native, Next.js, Node.js and Python in production every week. I build mobile apps, web apps, data pipelines and LLM features. I also build LLM pipelines as a contract engineer, including a model router that cut the cost of a code-conversion job by more than 13x. You get clear written updates, small reviewable changes and code you can maintain after I hand it over.

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