Your spreadsheet is already your software — it just needs screens, users and rules
Still running your business on Excel? Upload your files. Within minutes, your entire workflow becomes a working app.
Free, no credit card. Sign in, upload the file; your app is ready within minutes.
Live preview
Minutes after the upload: a real app running in your browser on your own data. Walk through the screens, enter a record, say what you don't like; watch it change in front of you.
How it works
You upload the file; Evonx turns sheets into screens, rows into records and formulas into rules, shows it in a preview on your own data, and publishes when you approve. No manual migration, no lost rows, no jargon.
Attach the file in chat and say in one sentence what you want. Evonx reads the sheets, columns and sample rows, then lays out the plan for the app.
Within minutes your app runs in the browser with your own data. Walk through the screens, add a record; say anything you want different in chat.
Your app goes live at its own address; your team signs in with their permissions. Need Excel again? Your data can be exported at any time.
The wave ends when your app is live.
Why not stay in Excel?
Excel got your business this far. The problem was never the table — it's that several people, a phone and a change history don't fit in one file. Evonx takes your workbook as it is and adds the layers a business needs on top: screens, users, permissions, history, notifications.
Excel, Google Sheets or CSV. Sheet names become modules, column headers become fields, rows become records — a 20,000-row sheet imports in one go. You see exactly how many rows each sheet landed with; nothing is quietly dropped.
'Available = on hand − reserved', your VAT-inclusive price, your overdue-balance condition: the logic in your workbook runs the same way in the app. A 'Customer code' that appears on two sheets links those sheets; a row saying 'Customer: Jane Smith' lands on the right customer record.
Share a spreadsheet and you share all of it. In the app, the warehouse sees only the stock screen, finance sees balances, the owner sees everything. You say who sees and who edits what — Evonx sets it up.
The era of stock_final_v3_NEW.xlsx ends. One source of truth, everyone working at the same time, nobody overwriting anyone's row. Every record shows who changed it and when; a wrong delete is one click to undo.
A spreadsheet doesn't fit a phone screen; your app does. Stock counts in the warehouse, job notes on site, orders at the customer's — entered from the browser, pinned to the home screen like an app, nothing to install.
Type 'notify me when stock drops below the reorder level' or 'generate a delivery note from each order', and it's added. Automations that are impossible in a spreadsheet are one request in your app; anything you don't like, you point at in the preview and have changed.
See it in action
Watch a request written in plain language go to a live preview, and from there to production.
2-minute product demoWatch on YouTube
Which spreadsheets become apps?
The spreadsheets that turn into apps always come from the same place: a file one person once kept, three people now share, someone wants on their phone, and that keeps growing. The common thread: the data and the business logic are already in the table — only the app is missing.
Which way?
A business that wants out of the spreadsheet usually has two options: an off-the-shelf tool that doesn't quite fit, or custom software that starts with a quote and takes months. Evonx opens a third way: it takes your workbook as it is, builds the app around it, and keeps improving it as you use it.
Related pages
If your workbook belongs to a specific job, the solution pages fit; if you're still at the idea stage, custom software development is the place to start.
Frequently asked questions
Excel (.xlsx, .xls) and CSV files can be attached directly in chat. If you use Google Sheets, download the sheet as Excel or CSV and upload that. Workbooks with several sheets are supported too; each sheet is treated as its own module.
All of it. There is no row limit — a 20,000-row sheet imports in one go. When the import finishes you see how many rows each sheet landed with. If a row has a problem (say, a customer name that isn't on the customers sheet) it is held back and listed; you fix it and re-run. Nothing disappears silently.
Your formulas become the app's rules: stock calculations, VAT-inclusive prices, due-date checks, balance totals all work the same way in the app. Relationships between sheets (an order's 'Customer code' pointing at the customer list, for example) are set up too. Pivot-style sheets — months spread across columns, freight or price matrices — are turned into properly structured records rather than copied as wide tables.
A sheet with headers in the first row and data underneath is enough. If there are merged cells, several header rows or empty sheets, Evonx starts from what it can read and asks you where it isn't sure. You don't have to clean the file first; anything that looks wrong in the preview, you have corrected in chat.
No. Your data is yours and can be exported to Excel whenever you like, so the table you send your accountant — or just prefer to look at — is always within reach. The app adds what a spreadsheet can't do: working together at the same time, entering data from a phone, permissions, history. It doesn't take the spreadsheet away.
No coding needed, and it isn't an Excel add-in. Evonx builds a real application from your workbook: its own database, sign-in, permissions, screens and its own web address. You write requests in plain language and the AI builds them; if you want to see the code, it's yours.
Trying it is free: upload your spreadsheet, have the app built, use it in the preview with your own data — no credit card required. A subscription kicks in when you publish the app at your own address and open it to your team; current plans are on the pricing page.
Upload the file, type a sentence; Evonx builds your app on your own data within minutes. Free to try, no credit card required.