Invoices,
zero clutter.

Yours. Forever. Free.

An open-source invoice maker that lives on your computer. No accounts, hidden fees, or data collection. Built by someone who actually invoices.

Download free

View source on GitHub →

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what you get

Everything you need

ease

First invoice in a minute

A first-run wizard walks you through setup. You'll be issuing your first invoice in under a minute.

speed

1-click repeat invoice

Bill the same customer every month? One click. Numbers and dates update automatically.

automation

Email it in one click

Send through your own SMTP. Per-customer message templates with auto-filled placeholders.

payments

QR payments included

SPAYD, EPC GiroCode, Pay by Square — built in. Customer scans, customer pays.

privacy

Fully offline. Optional cloud.

Your data lives on your device. Encrypted backup to Proton Drive, Google Drive — your account.

design

Clear PDFs

Four built-in templates — classic, table, modern — or build your own. Multi-currency, multi-language.

platforms

Works on every device

Linux, Windows, macOS, Android, plus a CLI for power users. Same data, any device.

security

Encrypted backups

Export to a single .tidybill file, password-encrypted with a BIP-39 recovery phrase.

how it looks

A few looks inside

Dashboard with all invoices — Everything in one place. Invoices, customers, statuses.

Creating an invoice — The wizard. If you've ever filled in a Word table, you can do this.

Smart warnings catch typos before your customer does.

Customers list — Customers and items remember themselves so you don't have to.

Modern PDF template — PDF output. Four built-in templates, fully editable.

why a program

Why install a program in 2026?

Web apps cost money to run. That money has to come from somewhere — usually you, either through a monthly fee, ads, or your data being sold downstream. Often all three.

TidyBill is a tool, not a service. It runs on your computer. We don't have your invoices because we never see them. You own your data — it's a SQLite file on your disk.

Want to sync between devices? Plug in your own cloud — encrypted before it leaves your machine. Or don't, and TidyBill stays perfectly happy offline forever.

faq

Frequently asked

Is it really free?

Yes. AGPL-3.0 open source. No premium tier. No "free for personal use" trick.

Where is my data stored?

Locally on your device. Linux: ~/.config/tidybill/. Windows: %APPDATA%\TidyBill\. macOS: ~/Library/Application Support/TidyBill/.

Can I sync between my computer and phone?

Yes — encrypted .tidybill file or your own cloud (Proton Drive, Google Drive). We encrypt before data leaves your machine.

What if you stop developing it?

Your data is in plain SQLite — readable forever. Source is open, anyone can keep building.

Can I send invoices from my own email?

Yes. SMTP login (Gmail, Proton, your hosting). Per-customer message templates with placeholders.

Can I use TidyBill for more than one company?

Yes. Multi-supplier — switch between companies, each with its own bank account and numbering.

Why does my system warn me during install?

We don't pay for expensive code-signing certificates. One click confirms (Windows: "Run anyway"; macOS: System Settings → Privacy & Security → Open Anyway; Android: Allow from this source) — the system remembers. Once enough people install TidyBill, OS reputation systems trust it on their own.

download

Download

Free. Open source. Pick your platform.

Windows

.exe installer

Linux

.deb · .rpm

.debDebian, Ubuntu, Mint .rpmFedora, RHEL, openSUSE

macOS

Apple Silicon · .dmg

Android

.apk

GEEK · Terminal

CLI binary. Linux · macOS · Windows. Switch to GUI any time, same data.

Linuxtidybill-linux-terminal-amd64 macOS · Apple Silicontidybill-mac-terminal-arm64 macOS · Inteltidybill-mac-terminal-amd64 Windowstidybill-windows-terminal-amd64.exe

All builds on GitHub.

thanks

Like it? Pass it on.

If TidyBill saved you time, tell a friend — or anyone who might find it useful. Missing something? Open a GitHub issue or write below.

If you want to send something for a coffee, the addresses live inside TidyBill under About. (We've got coffee for now :) )

Invoices,zero clutter.