Build a small online tool for your business

A small online tool is not “becoming a tech startup.”
It is often: replacing a spreadsheet, a notebook, or five poorly glued tools… with a tool of your own, available in the browser, shaped for how you work.

Typically: you (or you + an assistant), sometimes clients who see a part.
If it is mainly your team collaborating with roles: read Build an internal tool for your team instead.

Solo / business examples:

• tracking client requests (quote → in progress → delivered)
• field visit planning
• quote calculator / business checklists
• tracking cases or deliveries

When it is really worth it

Yes, if you recognize at least two points:

• you repeat the same gestures every week
• information is scattered (email, WhatsApp, Excel, notes)
• a data-entry mistake costs time or money
• you want to find a case in 10 seconds, not 10 messages

Not yet, if:

• the need changes every week with no rules
• a simple form + spreadsheet still works fine
• you do not have a regular flow yet

In that last case: How to build a website or app with AI.

Tool ≠ brochure site

If the tool must remember information: What is frontend and backend? → on Index10, Index10 Cloud.

Concrete example: tradesperson / service provider

Friction today: quotes sent by email, follow-ups in WhatsApp, “where is the Martin job?” nowhere to be found.

Useful v1:

What you do not do on day one: full invoicing, e-signatures, native mobile app.

Frame: What is an MVP?.

What really matters (business)

Think “friction → screen,” not “features”:

• Late quotes → filter “Quote sent for +7 days”
• Visit tomorrow → simple schedule view, not an ERP
• Job checklist → checkboxes on the record, not a second tool

And above all: your industry language (“job,” “session,” “case”), not “items” and “entities.”

Scope v1 in one sentence

When I open the tool, I must be able to [main action] in under 2 minutes.

Then 3 screens max (list / detail / create) and 2–3 statuses.
No advanced reporting on day one.

Index10 path

1. Describe the real work (like the tradesperson example).
2. Build the screens, watch the preview.
3. Enable Index10 Cloud for accounts + storage. Cloud credits (data) are not AI credits (chat).
4. If payments or external email: keys in Cloud → Secrets, never in chat.
5. Test with 10 realistic cases.
6. Ask for a “who sees what” audit if a client can sign in.
7. Publish: the security scan runs; critical issues block until fixed. A *.index10.app link is enough to start.

Docs: Index10 Cloud · Security.
How to phrase the request: What is a prompt?.

Starter prompt (example)

Create a small online tool for [business].
Main user: me (and optionally an assistant).
Main action: [verb].
Screens: list, detail, create.
Statuses: [3 max].
Vocabulary: [industry words].
Simple, readable design. No complex dashboard.

Common mistakes

• Recreating Excel pixel by pixel
• Too many “just in case” fields
• Wanting Stripe, auto-emails, and a mobile app on day one
• Pasting payment keys in chat (→ Secrets)
• Building a team tool without reading the internal tool guide

After that?

When the tool is used every week:

• a CSV export for your accounting
• one useful automation (reminder)
• a client portal if the client must see “their” case

In short

A small tool succeeds when it removes real friction in your business.
On Index10: one main action, few screens, Cloud at the right time, Secrets for keys, scan before publish.

The right question: which gesture do I want to stop doing by hand this week?