Smart Tools. Instant Results. Zero Hassle.

Everything You Need.
One Smart Platform.

Calculate, Create, Convert and Automate – All in One Place.

Explore All Tools
Categories

Find the right tool

Calculators & Converters

Finance, tax, loans, dates and everyday maths.

AI Generators

Emails, resumes, proposals and content.

Document Generators

Invoices, quotations and reports.

PDF & File Tools

Merge, split, compress and convert.

Business & Finance

Margins, SIP, break-even and CAGR.

Developer Tools

Formatters, encoders and generators.

Accounts Receivable

DSO, aging, collections, reserves and dunning.

Order-to-Cash Tools

Cycle time, CCC, disputes, credit limits and liquidity.

Bills & Receipts

Fuel, cab, hotel, medical, rent and 20+ more formats.

Accounts Payable Tools

DPO, AP aging, 3-way match and processing cost.

Working now

Popular tools

View all
AI

AI tools Needs backend

AI tools call a secure backend that holds the API key. Until one is connected, they show “AI service not configured” — no fake output.

Documents

Document generators

New

Recently added

Why BillGen

Built to be quick and private

Private by design

Calculations and file work happen in your browser. Nothing is uploaded.

Instant results

Real-time output as you type, no sign-up.

Real downloads

PDF and CSV files you can keep and share.

Honest labels

Estimates are marked as estimates; unfinished tools say so.

How it works

Three steps

1

Pick a tool

Search or browse categories.

2

Enter your details

Results update live as you type.

3

Copy or download

Copy, print or save as PDF.

Frequently asked questions

Yes. The platform is free and supported by advertising.

No. Live tools run entirely in your browser. AI tools will need a backend and will say so before sending anything.

Results are estimates. For tax, loans or investments, confirm with an official source or a professional.

They aren't built yet. We label them rather than pretend they work.