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Spreadsheets → Web Apps

Your Spreadsheets are
Your App Studio.

Turn the spreadsheets you already know into full-stack web applications. Design forms, validation rules, and security logic instantly—No Code, No Prompt, No LLM required.

If you can structure a spreadsheet, you can build a web app.

How to think about it

Your workbook is the blueprint — not the database.

SheetApps reads your Excel workbook the way a builder reads an architect's drawing. Sheets describe the application you want:

  • Form_sheets become data-entry forms — fields, sections, line items.
  • List_ / Master_sheets become master data that backs dropdown fields.
  • Rules_rows become field validations, conditional logic and business keys.
  • Formula_rows become computed fields, updated live as your team types.

The cell values in your sheets are not imported as records. A new app starts empty: your team enters data in the app — or bulk-imports it — where every row is validated, secured and audited. Your Excel file stays what it always was: the design document.

How it works

Spreadsheets in, full-stack app out.

  1. 1

    Design in Excel

    Lay out your application as ordinary sheets: Form_ tabs for input forms, List_ tabs for master data, Rules_ for validations and conditional logic, Formula_ for calculations. No new tool to learn — the spreadsheet is the designer.

  2. 2

    Upload & review

    SheetApps reads the blueprint and shows you the generated schema — every field, data type, dropdown and rule it detected. Confirm, and the app is live with its own database, ready for your team.

  3. 3

    Share & work

    Invite teammates with roles, enter records in validated forms or bulk-import them, and export to Excel, CSV or JSON any time. Update the design later by uploading a revised workbook — records are preserved.

  • Almost zero build time

    SheetApps builds your app the moment you upload the workbook. There is nothing to compile, generate or wait on.

  • Rapid prototyping

    Reshape a sheet, upload again, and iterate on the live app in minutes — your records are preserved each time.

  • Immediate time-to-value

    Your team enters validated data the same day. No dev queue, no project plan, no waiting for a release.

See it work

Pick a demo and click through it at your own pace — no video to load, nothing to install.

Features

Everything a real app needs — designed in cells.

The parts of an application that usually need a developer are exactly the parts your workbook already describes.

Validated forms

Required fields, formats with check digits (SSN, phone, UPC, routing numbers), ranges and conditional rules — straight from your Rules_ sheet, enforced on every save.

Dropdowns & standard lists

Master-data sheets become dropdowns, plus nine built-in standard lists — countries, states, currencies, languages, time zones and more — no lookup sheet needed.

Live formulas

Formula_ rows become computed fields that update as your team types — totals, derived values, auto-filled fields.

Multi-form apps

Several Form_ sheets become one app with multiple pages, headers with repeating line items, and per-form record grids.

Dashboards & analytics

Add a Report_ sheet and your app gets KPI tiles, an interactive pivot and charts — filter, drill down and save your view. No separate BI tool required.

Import & export

Excel, CSV, JSON and Google Sheets — exports round-trip back as imports, and business keys update rows in place instead of duplicating them.

Roles & workspaces

Invite teammates as admins, editors or viewers. Each app lives in a workspace with per-app membership and an audit trail of every change.

File attachments

Attach files to records with safe in-browser previews for images, PDFs and text — executable uploads are rejected outright.

Themes & branding

Four accent themes plus custom colors, light/dark/auto mode, layout density, and your company logo in the navbar.

Built-in AI assistant

A help assistant answers your team from your Knowledge Base and User Guide — grounded, cited, and private to your workspace.

Publish as a bundle

Any app can be published as a standalone, self-contained deployment that runs on your own server — data and all.

Multilingual & regional

SheetApps speaks your team’s language — the platform and your apps run in English, German, Japanese or Arabic (with right-to-left support), and dates, numbers and currency format automatically for each person’s region.

Security

On by default. Not a checkbox.

Spreadsheets full of personal data get emailed around. Apps built with SheetApps don't — sensitive fields are protected the moment your blueprint marks them.

Field-level encryption

Sensitive values are encrypted with AES-256-GCM before they reach the database, with per-app derived keys — the database provider never sees plaintext.

Card numbers: last 4 only

Credit-card fields are validated once, then stored truncated to their last four digits. The full number is never persisted — anywhere.

Masked by default

SSNs and card fields render masked with a reveal toggle, and exports mask them for every role unless an app owner explicitly opts in.

Support that can’t peek

Platform support sessions are read-only and never receive raw sensitive values — masking is enforced server-side, not in the UI.

Audited end to end

Every record carries who changed it and when; workspace-level actions land in an audit log the admin can review.

Backups & recovery

Scheduled backups, a recycle bin for deleted records, one-click export and non-destructive restore — your data is yours to keep and to get back.

Pricing

Start small. Change anytime.

Simple, fair pricing — a free tier plus paid plans. Full pricing will be published at launch.

Request early access

Get early access

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FAQ

Questions, answered.

Does the data in my workbook become the app’s data?

No — and that’s by design. SheetApps reads your workbook as a blueprint: sheet layouts, field names, data types, lookup lists, rules and formulas. Cell values are only used as samples to infer each field’s type. A new app starts empty; your team enters records in the app or bulk-imports them, where every row is validated and audited.

Do my users need Excel?

No. Only the person designing the app touches a workbook. Everyone else uses a normal multi-user web application in their browser — forms, dropdowns, search, exports — on any device.

Can I change the design after the app exists?

Yes. Upload a revised workbook with the Change action: the schema migrates, existing records are preserved, and master-data lists are updated in place (matched rows update, new rows insert — manual additions survive).

Where does the app’s data live?

Each app gets its own isolated dataset. Sensitive fields are encrypted at the application layer before they reach the database, card numbers are stored last-4 only, and you can export everything to Excel, CSV or JSON whenever you want.

Can I run an app on my own server?

Yes — any app can be published as a standalone bundle: a self-contained deployment with its data, ready to run on your own infrastructure, independent of SheetApps hosting.

What skills do I need?

If you can structure a spreadsheet — name columns, keep a lookup tab, write a simple rule — you can build a full-stack web app. There is no code, no SQL and no devops in the workflow.

Can my app work in other languages and regions?

Yes. SheetApps itself runs in English, German, Japanese or Arabic — pick your language at sign-in or in Settings, with right-to-left support for Arabic. Each generated app can offer the languages you choose; anyone whose language an app doesn’t include simply sees it in English. And everywhere, dates, numbers and currency display in each viewer’s own regional format, while the stored data stays standard.

Your workbook, now a web app.

Design in the spreadsheet you already know. Ship an application your whole team can use — first month free on the Basic plan.

Request early access