The AI platform for business applications
Your documents already say everything. Lydessa AI builds the rest.
Lydessa is an AI platform for building and running secure, multi-user business applications without code. Start from what you already have — spreadsheets, documents, screenshots or an app prototype built elsewhere; Lydessa AI reads it, asks about anything unclear and builds the app — screens, roles, workflows, approvals, automations — then keeps evolving it when you ask.
Price lists, order forms, trackers, the workbook only one person understands. Lydessa AI reads the documents you already work from, asks you about anything left unclear, and turns them into one secure application — screens, people, permissions, workflows and approvals, and an address of its own. Then you keep shaping it together, one sentence at a time.
Lydessa is not a one-off “Excel to app” converter. Spreadsheets are one way in, alongside documents, screenshots and app prototypes; the application is where the work happens afterwards — every day, by the whole team — and it keeps evolving as the business changes.
Create your app · No credit card. Bring what you already have: spreadsheets (.xlsx, .xlsm, .csv), documents (Word, PDF, Markdown), screenshots, or an app prototype (HTML/JS). Up to 25 MB each, several files at once.
What teams run on Lydessa
Work that used to live in shared workbooks, documents, inboxes or a prototype, for example:
- Orders, quotes and customers — a lightweight CRM
- Stock, purchasing and suppliers, with stock levels that update when an order is saved
- Service, maintenance and support requests with assignees and due dates
- Approval processes such as purchase requests, leave and expenses — in one stage or several
- Projects and tasks on timelines and calendars
- Audits, checklists, assessments and surveys
What it reads
- Workbooks: Many sheets, merged headings, formulas, colour that carries meaning.
- Exports: Whatever your current system hands you, however untidy.
- Forms & lists: Order forms, checklists, request sheets, registers.
- Written rules: The notes beside the data, process documents and screenshots — and anything you add in your own words.
- App prototypes: A prototype you had built elsewhere — HTML/JS from an AI tool or an agency. Its screens, forms, tables and rules become the structure of your application.
Accepted today: .xlsx, .xlsm, .csv · .docx, .pptx, .pdf, .md, .txt · .png, .jpg · app prototypes as .html/.js · up to 25 MB each · several files at once
Four steps, live the same day.
Nothing to install, no template to fill in. Hand over your documents in the morning and use the application in the afternoon.
- Hand over your documents. One file or twenty, plus a sentence about what you actually do with them. No tidying up first.
- Lydessa AI reads, then asks. It works out the structure, the fields, the connections and the rules written between the lines. Anything left unclear becomes a question, not an assumption.
- It shows you what it understood. A summary in your own words, and a preview you can walk through. You fine-tune it together.
- You publish. Your records move across and your application goes live at an address of its own.
- Change it by asking. Describe the change in one sentence. Lydessa AI applies it, you approve it. “Add a phone field to Customers and show it in the list”
It never assumes. It asks.
Not everything is written in your documents; some of it only lives in your head. Where Lydessa AI is unsure, it does not guess — it asks you a clear question, applies your answer and tells you what it did. After your application is live, the conversation carries on exactly the same way.
- It understands. Untidy headings, side notes and the rules written between the lines.
- It asks. When the decision is yours, it comes to you with one clear question.
- It adapts. Describe a change in one sentence. It is checked before it goes live — and if it cannot be done, you are told why.
- It can offer options. In creative mode it proposes two or three alternatives that have already passed every check; you choose the one to apply.
Everything a real working tool is expected to have.
- Tidy lists, finished screens: Every column shown the right way, with search, filters, sorting and export from the first day.
- Roles and permissions: Invite your team, then decide who sees, edits and approves — down to a single field.
- An address of its own: yourcompany.lydessa.com, on a secure connection, from the moment you publish.
- Dashboards from your own data: Summary cards, charts, boards, calendars and pivots built on your numbers — not a sample set.
- Your brand, six languages: Colour, typeface and language. The application should look like it belongs to you.
- Change it by asking: Describe the change in one sentence. Lydessa AI applies it, you approve it.
What it runs
- Workflows and approvals: Statuses that move step by step, with the right people approving — in one stage or several.
- Automations and reminders: Stock that updates itself, rules that stop mistakes before they are saved, reminders before a date slips.
- Pages for every role: Summary pages, record overviews and a home page for each role — from your own numbers.
- Connections: Record changes can flow to your other tools — Zapier, Make or your own systems — over signed webhooks.
The upload is only the start: the application is where the work happens afterwards — every day, by the whole team.
What makes Lydessa different.
Not a converter, not a code generator, not a blank canvas: an AI platform that builds, runs and keeps evolving the application — with a check before every change.
- The usual way: You design a data model from scratch, or keep living in the spreadsheet. With Lydessa: You hand over what you already have — spreadsheets, documents, screenshots, an app prototype — and Lydessa AI reads it, then asks about the rest.
- The usual way: Code, generated or hand-written, that someone must review, host and maintain. With Lydessa: No code in your application. Lydessa AI produces a specification checked against a fixed contract; one tested engine runs it for every customer.
- The usual way: Every change is another rebuild; if something broke, you find out in production. With Lydessa: One sentence. Checked before it goes live, existing records untouched — and what cannot be done safely is declined, with the reason.
- The usual way: Whoever has the file has everything in it. With Lydessa: Sign-in, roles down to a single field or record, a separate closed space for each customer, and a record of every change.
Your data is yours alone.
Every customer’s data sits in its own closed space; nobody can reach anyone else’s. Every application asks for a sign-in, permissions follow the person’s role, and every change is written down.
- A separate, closed space: Your records are never kept together with another customer’s.
- Sign-in required: Only the people you invite can open your application.
- Permissions by role: You decide who sees and changes what, down to a single field.
- Everything on the record: Who changed what, and when — written down for the day somebody asks.
Asked before the first upload
Is Lydessa only for turning spreadsheets into apps?
No. Spreadsheets are one way in. Lydessa AI also reads documents, screenshots and photos of paper forms, and app prototypes built elsewhere (HTML/JS) — or simply a description in your own words. The application it builds is where the work then happens — records, workflows and approvals, automations, reminders, dashboards and pages of your own — and it keeps changing as your business does.
Do I have to tidy the file up first?
No. Merged headings, notes in the margin, six spellings of the same status — that is what the reading step is for. Where the decision is genuinely yours, Lydessa AI asks you.
What happens to the data already in there?
Your records move into the application when you publish, and you see a list of anything that could not be carried across. Your original file is never touched.
Can I change it after publishing?
Yes. Describe the change in your own words; Lydessa AI applies it and your existing records stay exactly as they are.
What can I start from?
Spreadsheets (.xlsx, .xlsm, .csv), documents (Word, PowerPoint, PDF, Markdown, text), screenshots and photos of paper forms, an app prototype built elsewhere (HTML/JS), or a short description of the work — one file or many, up to 25 MB each. Lydessa AI reads them together and asks about anything unclear.
What if Lydessa AI misunderstands something?
Before anything is published you read what it understood and try it in the preview. Nothing is built until you say so.
What if I ask for something it cannot do?
It tells you. Every change is checked before it goes live; if a request cannot be done safely, or would slow your application down, Lydessa AI says so and explains why instead of quietly applying something close.
How is Lydessa different from no-code builders and AI code generators?
Lydessa AI does not write code and does not start you on a blank canvas. It reads what you already have, builds the application from a fixed set of building blocks that Lydessa tests and runs the same way for every customer, checks every change before it goes live, and declines — with the reason — anything that cannot be done safely. You get a running, multi-user application at its own address, not code to host and maintain.
Lydessa at a glance
- Name
- Lydessa — its built-in assistant is called Lydessa AI
- Category
- AI platform for building and running business applications (no-code)
- For
- Teams that run their work on spreadsheets, shared documents and email: operations, sales, purchasing, finance, HR, quality and service
- Starts from
- Spreadsheets (.xlsx, .xlsm, .csv), documents and screenshots that explain the work, an app prototype built elsewhere (HTML/JS), or a short description
- Result
- A secure, multi-user web application at its own address, with sign-in
- After launch
- Changes in plain language, checked before they go live
- Languages
- English, Turkish, Portuguese, Spanish, German, Arabic
Bring one document. Leave with an application. The first one takes about ten minutes. No credit card, no call with sales. Create your app