yucod

A browser extension that works where your customers already spend their day

We build extensions for Chrome, Safari and Firefox, from a one-button tool to a full product with accounts and billing. We prepare a quote after your brief.

Quote and schedule after your brief

Who it's for

  • SaaS and web service owners who want a presence inside the browser: quick access, notes, data capture from pages
  • Online stores and agencies that need to automate routine in third-party dashboards: CRMs, marketplaces, ad accounts
  • Teams whose people copy data between tabs and spreadsheets every day
  • Startups testing an idea: an extension is cheaper than a full app and reaches users faster

Problems we solve

My team copies data from websites into our CRM or spreadsheet by hand

We build an extension that reads the needed fields on the page and sends them to your CRM, sheet or API in one click. The routine disappears and retyping errors go down.

I'm worried the extension will be rejected in the store review

We request the minimum permissions under the agreed terms, write the privacy policy and prepare the store listing for review. Broad permissions such as access to all sites usually slow reviews down, so we ask for them only where nothing else works.

I need all three browsers but can't fund three separate builds

We write one codebase on the WebExtensions standard (a shared set of APIs for extensions) and adapt it per browser. For Safari we add a wrapper in Xcode.

I don't know if an extension is the right format or if anyone will use it

We start with a pilot: a minimal version with one measurable goal, such as installs or actions per week. You decide on further investment based on real numbers.

What's included

  • Short analysis of the task: what the extension must do and which permissions it needs
  • Interface: popup, side panel or buttons injected into the page
  • Development on Manifest V3 (Chrome's current extension standard) with a background service worker and content scripts (code that runs on the page)
  • Connection to your API, CRM or database, with user authentication if needed
  • AI features where they help: page summary, draft replies, data extraction
  • Firefox and Safari adaptation in the Standard and Pro packages
  • Testing on the real sites the extension must work on, across browser versions
  • Store preparation: icons, screenshots, description, privacy policy
  • Submission to the Chrome Web Store, Firefox Add-ons and the App Store, plus fixes for reviewer comments
  • Handover of source code, developer accounts and documentation

Choose the scope

Use a package to describe what you need. We agree on the quote and schedule after reviewing your brief and requirements.

01

Starter

Testing an idea or solving one specific routine task in Chrome

  • Chrome extension on Manifest V3
  • Popup or on-page button, 1–2 core features
  • No custom server: data stays in the browser or goes to your existing API
  • Publication in the Chrome Web Store
Discuss this scope
02

Standard

A service or business that needs the main browsers and a backend connection

  • Chrome and Firefox, plus Safari on Mac
  • User login and data sync through a server
  • Integration with your CRM or API
  • Analytics setup to measure the pilot
  • Publication in three stores
Discuss this scope
03

Pro

An extension as a standalone product with accounts, plans and AI features

  • All browsers on a single codebase
  • Registration, subscriptions and payments
  • Admin panel for users and settings
  • AI features on your API key or ours
  • Post-launch support by agreement
Discuss this scope

How we work

01

Brief and requirements

You describe the task and current workflow. We clarify requirements, choose a first stage and prepare a quote.

02

Pilot with a measurable KPI

We agree on a minimal version and one success metric. Payment is in stages, so your risk is limited to the first one.

03

Build and testing

We build with a fast AI production pipeline while senior developers review the code. You get a working build you can install and try.

04

Store submission

We submit from your developer account and handle reviewer comments. Review times depend on the stores, not on us.

05

Handover and next steps

You get the code, access and documentation. Then we look at the pilot numbers together and decide what to add.

Scope and limits

  • We don't promise a review time: Chrome Web Store, Mozilla and Apple review on their own schedule and sometimes ask for changes.
  • We don't build extensions that break site or store rules: bypassing protections, hidden data collection, fake engagement.
  • We don't guarantee install numbers: an extension has to be promoted. We can help with channels through the website and ads, but results depend on the product and the niche.

FAQ

How much does a browser extension cost?

We prepare a quote after reviewing your brief and requirements. A first stage can cover: chrome extension on Manifest V3; Popup or on-page button, 1–2 core features. Scope, payment and schedule are agreed before work starts.

Do I need developer accounts, and who pays for them?

Yes. The Chrome Web Store charges a one-time developer fee, and Safari requires a paid yearly Apple Developer membership. Accounts are registered in your name, so you own the extension and the code under the agreed terms. We help with the setup.

Can my existing website or web app be turned into an extension?

Partly. Extensions are good for quick actions, working with the current tab and integrating into third-party sites. Complex dashboards should stay on the website, with the extension as a fast entry point. We'll sort this out at the start.

How is Safari different from Chrome and Firefox?

The extension code is largely the same, but Safari requires it to be wrapped in a macOS or iOS app via Xcode and approved by Apple. You need a Mac and a paid Apple Developer account. That makes Safari costlier and slower than Chrome, so we list it as a separate line in the estimate.

What do you need from me?

A description of the task, access to the API or CRM the extension will work with, examples of the sites or pages it must act on, and developer accounts. Brand materials help with icons and the store listing.

What happens when browsers change their rules?

It happens: Chrome has already moved to Manifest V3 and restricted some older techniques. We build to current rules and hand you the documentation. By agreement, we can maintain the extension and update it when the rules change.

Start with your task

Describe your business, the outcome you need and your current workflow. We will clarify the requirements and prepare a quote after your brief.

Start a project brief