I will develop a custom google workspace add on for sheets or gmail


About this gig
Need a custom tool inside Google Sheets, Docs, or Gmail that goes beyond a simple script? I build Google Workspace add-ons: proper, packaged extensions with their own menu, sidebar, or dialog UI, not just a macro buried in Tools > Script editor.
I have published my own Google Workspace Marketplace add-ons, so I understand the platform inside and out: manifest files, OAuth scopes, add-on triggers, and Google's review process.
Here is what I can build for you: container-bound add-ons with a custom menu, sidebar, or card UI; editor add-ons for Sheets, Docs, or Slides; Gmail add-ons that pull in data or automate replies; standalone add-ons with external API/OAuth integration, ready for Marketplace submission; and clean, documented Apps Script code you can maintain yourself.
Why work with me: I write clear, well-structured Apps Script, not spaghetti code. I test everything thoroughly before handing it over. And I explain how it all works, so you are never stuck.
Send me a message with what you need your add-on to do, and I will tell you the best plan for it before you order.
Get to know Gert K
Google Sheets Expert, Formulas, Automation and Apps Script
- FromAustralia
- Member sinceFeb 2018
- Avg. response time1 hour
- Last delivery1 year
Languages
English, Afrikaans
Other Software Development Services I Offer
FAQ
What is the difference between a container-bound and a standalone add-on?
A container-bound add-on lives inside one Sheet, Doc, or Gmail account. A standalone add-on is a separate app anyone can install from the Marketplace.
Will I get the source code?
Yes, on the Standard and Premium plans. On the Basic plan you get the working add-on, and source code is available as an add-on extra.
Can you submit the add-on to the Google Workspace Marketplace for me?
On the Premium plan I build it to Marketplace standards. The listing itself is submitted under your own Google account, and I can guide you through that step.
