Invoice Generator

How Invoice Generator works

Build an invoice with line items and tax, then download it as a PDF assembled in your browser — nothing is uploaded. Everything happens inside this page: the tool reads your input, runs the calculation or conversion locally, and hands the result back to you. Nothing is transmitted, because there is no backend to transmit it to.

That design choice is deliberate. Most free tool sites upload your files to a server, process them there, and quietly keep a copy. Toolcin cannot do that — the site is a set of static files. If your connection dropped the moment the page finished loading, every tool would still work.

How the PDF is built

The page writes the PDF itself, line by line, using the two standard Helvetica fonts. There is no library and no server: the file is assembled in memory and downloaded directly, which is why it opens in any reader and stays small.

Layout is fixed A4 with a header, a four-column table and a totals block. That is deliberate — an invoice needs to be predictable, not designed.

Filling the line items

Items are entered one per line as Description | Qty | Rate, separated by a pipe. The description is cut at 48 characters, because beyond that the text would run into the quantity column; keep descriptions short or put detail in a note.

Tax is a single percentage applied to the subtotal. Multi-rate tax, discounts and shipping lines are not modelled — this is a simple invoice, not accounting software.

What it deliberately leaves out

No logo, no coloured header, no multi-page overflow handling for very long item lists, and no persistence — closing the tab loses the draft. There is also no VAT number field or reverse-charge wording, so for cross-border B2B invoices check what your jurisdiction requires.

For a formal tax invoice, generate the PDF here and then verify the required fields against your local rules before sending.

Good to know

• Works offline once loaded, including on flights and in locked-down networks.
• No file size limit beyond your device's own memory.
• Free to use, with no account and no usage counter.
• Results are produced locally, so they are not logged or shared with anyone.

Questions