ExtraChart is a Google Slides™ add-on that allows you to generate advanced, high-quality charts directly inside Slides. It provides a full client-side chart builder, customizable styling controls, and a lightweight built-in data editor — without requiring Google Sheets™ or external tools.

🧩 Core Functionality
Advanced Chart Builder (Client-Side Rendering)

ExtraChart supports 19+ chart types that go far beyond the native options in Google Slides™. Categories include:

Bar & Column Charts: simple, grouped, stacked, horizontal

Line & Area Charts: standard, smooth, multi-series

Special & Advanced Charts: funnel, radar, chord, stream, heatmap, scatter, bullet, gauge, donut, pie, treemap

Charts are rendered entirely in the client UI and then inserted into Slides as optimized high-resolution images.

🎛 Full Customization Options

Every visual element is configurable:

Axes (scales, tick format, gridlines)

Padding, margins, and layout spacing

Labels, fonts, weights, and sizes

Color palettes 

Legend placement & formatting

Data markers & line smoothing

Backgrounds, borders, corner radius

Changes update instantly via a real-time preview.

🧮 Integrated Data Editor

ExtraChart includes an embedded spreadsheet-style editor:

Paste data directly into cells

Live synchronization with the preview chart

No switching to Google Sheets™ — all data preparation happens directly inside the add-on dialog

📥 Insertion Workflow

Charts are saved to the user’s ExtraChart workspace

Saved charts can be reopened and modified

The final chart is inserted into the current slide as a rendered image (PNG/JPEG depending on plan)

🆓 Free Plan Features

Unlimited use of 14 basic chart types (no watermark)

Unlimited use of 1 advanced chart type (with watermark)

Suitable for simple reporting, training, education, and basic analytics.

🔐 Pro Plan

Upgrading unlocks:

Full access to all 19+ chart types

No watermark on advanced charts

Unlimited custom color palettes

Extended style & layout controls

High-resolution & transparent chart export

Priority feature updates and support

🔗 Architecture & Data Handling

Runs fully on the client side (no server rendering of charts)

Uses Google Workspace™ Add-on framework + App Script integration

Chart configurations are stored in a user-bound, isolated cloud workspace

Fully compliant with Google Workspace™ OAuth scopes and Google’s data minimization policy

🎯 Ideal For

Business dashboards

Academic charts and visual explanations

KPI/OKR presentations

Marketing & sales reporting

Data storytelling

Professional client presentations

🛡 Security & Compliance

No access to user Google Drive™ files

No reading or modifying external documents

Data is used only to construct the chart and insert it into the slide

GDPR-compliant

All access scopes are limited to sidebar and slide insertion only

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Trademark Notice: Google Slides™, Google Sheets™, Google Drive™, and Google Workspace™ are trademarks of Google LLC.