Custom Google Workspace
Web Apps & Sidebars.
Transform your Google Workspace into a bespoke internal software platform. We engineer custom HTML sidebars, standalone web portals, and internal dashboards that run serverlessly on Google infrastructure with 100% code ownership, built-in Google SSO, and £0 monthly per-user seat fees.
What is a Google Workspace
Web App or Custom Sidebar?
Instead of forcing your staff to navigate giant, fragile spreadsheets or paying heavy monthly subscriptions for tools like Retool or Airtable, Google Apps Script allows us to build custom web software directly inside your Google ecosystem.
In-Workspace Custom Sidebars
Interactive right-hand panels rendered inside Google Sheets, Google Docs, or Gmail. Staff get custom search bars, status buttons, document previewers, and barcode scanners directly alongside their active document without opening raw spreadsheet rows.
Standalone Internal Web Portals
Standalone web URLs hosted serverlessly on Google Cloud via Apps Script doGet(). Gives your team a full browser application for managing CRMs, client requests, and supplier uploads authenticated natively via Google SSO.
Native Google Security & Zero Cloud Host Fees
Because Apps Script runs natively inside your organization's Google Cloud infrastructure, your web app executes under your existing Google Workspace domain policies and OAuth security permissions. Data never leaves your tenant to third-party databases like Bubble or Retool.
Manual Spreadsheet Chaos vs. Custom Apps Script Engine.
Drag the slider to compare traditional manual operations with native automated sidebars.
| Row | Client | Status | PDF Link | Notes |
|---|---|---|---|---|
| #402 | Acme Ltd | #REF! ERROR | Needs manual formatting | Forgot to attach invoice |
| #403 | Global Trading | Pending Copy-Paste | http://drive.google/tmp... | Duplicate entry found |
| #404 | Highland Tech | #VALUE! | BROKEN LINK | Zapier task limit hit! |
Google Workspace Web App Architecture
How client requests flow serverlessly through Google Workspace SSO and Apps Script execution.
User Action
Staff opens Sidebar or clicks custom Web App URL in browser.
HTML5 / Tailwind UIGoogle SSO Auth
Google Workspace validates domain identity & permissions automatically.
OAuth2 / Google SSOApps Script Engine
Serverless doGet() or google.script.run processes logic.
Workspace Data Layer
Reads/writes directly to Sheets, Drive, Gmail, Docs, or REST APIs.
100% Owned Storage
4 Concrete Workspace Web App
Use Cases in Action.
Here is how businesses replace clunky manual processes and expensive SaaS software with custom Google Workspace web apps.
Use Case 1: Master Inventory & Operations Sidebar
Staff manually search through thousands of spreadsheet rows, re-typing product codes and order statuses. High risk of accidentally overwriting formulas or making typos.
Staff open a slick right-hand sidebar inside Sheets. They search by product name, click a status button, or scan a barcode. The sidebar validates the input and updates the correct row cleanly.
Use Case 2: Standalone Internal CRM & Order Dashboard
Paying heavy monthly per-user subscription fees just to give 10 staff members a basic interface to view lead lists and update deal statuses.
Staff navigate to a secure web link, log in automatically with their Google Workspace account, and manage leads, project tasks, and PDF generation with £0 monthly user seat fees.
Use Case 3: External Supplier & Client Document Portal
Receiving supplier invoices or client tender documents via fragmented email threads, requiring admin staff to manually save files into Drive folders.
Suppliers drag and drop invoices directly onto your branded web page. The web app automatically creates formatted client folders in Drive, renames files, and updates Sheets.
Use Case 4: Contextual Customer Intelligence in Gmail
Staff constantly copy-pasting customer email addresses into Sheets or external CRMs to check order history before replying to customer queries.
Opening an email automatically loads a sidebar card in Gmail displaying the customer's lifetime spend, recent orders, and open support notes directly alongside the thread.
Renting Low-Code SaaS vs
Owning Your Google Workspace Web App.
| Feature | Low-Code SaaS (Retool / Airtable) | Native Workspace Web App |
|---|---|---|
| Monthly Per-User Seat Taxes | £10 to £50/month PER USER (Airtable, Retool, Bubble) | £0 Monthly User Seat Fees. Runs on your existing Google Workspace account licenses. |
| User Authentication & Security | Requires managing separate passwords, API keys, or paid SAML add-ons | Built-in Google Workspace Single Sign-On (SSO). User access controlled natively by domain. |
| Database & File Storage | Data stored on external vendor cloud servers and proprietary databases | 100% Data Sovereignty: Data stays in your Google Sheets, Google Docs, and Google Drive. |
| Custom UI Design & Flexibility | Restricted to standard drag-and-drop block templates | Full HTML5, CSS3 (Tailwind), and JavaScript design freedom with zero layout constraints. |
How Google Workspace Web Apps Execute
Google Apps Script renders full HTML5, Tailwind CSS, and JavaScript. Client-side browser actions communicate asynchronously with server-side functions using google.script.run.
Everything You Need to Know
About Workspace Web Apps.
What is the difference between an In-Sheet Sidebar and a Standalone Web App?
An In-Sheet Sidebar opens inside an active Google Sheet or Doc as a right-hand panel for staff who work inside spreadsheets. A Standalone Web App is a separate web URL (hosted serverlessly via Google Cloud) that provides a full browser dashboard without needing to open spreadsheets at all.
Do we need to pay for web hosting or cloud servers?
No! Google Workspace Web Apps run serverlessly on Google's cloud infrastructure. Google handles all server maintenance, SSL encryption, and scaling with £0 separate hosting bills.
How does security and authentication work?
Standalone Web Apps can be configured to restrict access strictly to employees signed in with your company's Google Workspace domain (Google SSO). Alternatively, external portals can be configured to allow public uploads without requiring guest sign-ins.
Can we style the web application to match our brand?
Yes! Because Google Apps Script uses standard HTML5, CSS3, and JavaScript, we can apply modern UI frameworks like Tailwind CSS, corporate brand fonts, logos, and custom responsive layouts.
Calculate Your Web App ROI.
Ready to Build Your Custom
Workspace Web App?
Tell us what custom tools or sidebars your staff need inside Google Sheets, Docs, or Gmail. We'll engineer a tailored web app for your team.