CUPS review: keep printing on your local network

CUPS is an open-source printing system for people who want to print from Linux to a printer at home or work.¹ For privacy, its appeal is a local printing setup: choose a compatible printer and keep the document’s route within your own network. It is a practical choice if you want control over that route and are willing to spend a little time on setup.

Last checked October 29, 2026.

At a glance

What it is: Software that manages printers and print jobs.

Works on: Linux and other Unix-like systems; macOS and iOS use Apple’s separate CUPS version.¹

Price: Free software, with no licence fee.² Budget separately for the printer and any computer you dedicate to sharing it.

Licence: Apache 2.0.²

Best for: Linux households and small offices wanting locally managed printing.

Official site: OpenPrinting CUPS

What CUPS does and how it protects your privacy

CUPS supports local USB printers and network printers, including AirPrint and IPP Everywhere models.¹ IPP is a standard language for sending print jobs. A print queue is the waiting list of documents sent to a printer. Think of CUPS as the organiser between your document and the paper tray.

For a privacy-focused setup, choose a local printer connection rather than a cloud destination. Ask a specific question before buying hardware: can this exact model print locally without signing into an online service? Do not treat the CUPS name as a promise about everything the printer itself does. Review the printer’s own account requirements and network settings separately.

You can manage CUPS through a browser interface or your operating system’s printer settings.⁴ Start with the familiar settings window. Readers exploring a wider move to a different desktop can also read the Academy’s Linux introduction.

Key CUPS features

Driverless-compatible printing: IPP Everywhere support offers a standard way to connect compatible printers.⁴
Older-printer support: Legacy drivers and Printer Applications provide other connection options.¹
Browser administration: Manage printers and jobs from a local web page.⁴
Optional sharing: Enable or disable sharing for individual printers.⁴
Encrypted printer connections: The IPPS connection type requires encryption.⁴
Retention controls: Decide whether completed documents and job history are preserved.⁵

CUPS pros and cons

Pros

A useful foundation for keeping everyday printing under your control.
Free licensing makes it approachable for a household budget.
Standard printer connections make compatibility easier to discuss before buying.
A browser-based management option suits people who prefer visible controls.

Cons

Initial setup may require patience, especially with an unfamiliar printer.
Older hardware can need a separate driver or Printer Application.
Sharing adds settings and maintenance responsibilities.
Document retention needs attention before printing sensitive paperwork.

Is CUPS safe and private?

OpenPrinting develops this CUPS project.¹ Its October 5, 2026 release announcement covers CUPS 2.4.20 and lists bug and security fixes.³ The official OpenPrinting Snap Store listing offers stable version 2.4.20-1 on the latest/stable channel.⁶ These are signs of ongoing maintenance. Use your operating system’s supported updates rather than assuming an installation can be left untouched.

Connection encryption: CUPS documents ordinary IPP as optionally encrypted and IPPS as requiring encryption.⁴ Prefer IPPS when your printer supports it. Encryption protects information during the connection; treat document storage as a separate decision. Check the computer-to-server and server-to-printer connections separately if you introduce a shared server.

Stored documents and activity: CUPS 2.4.20’s manual gives a default of one day for preserving completed job files.⁵ Its default also preserves job history until the configured job limit is reached.⁵ Access logging records job actions by default.⁵ Local printing should therefore not be confused with leaving no records. Before printing tax forms or medical letters, ask whoever administers the computer to review these settings. Keep any telemetry or online-account choices in the printer’s own software under separate review.

Security history: Ubuntu’s October 2024 advisory says an update removed the legacy discovery protocol from cups-browsed, a related printing component.⁷ Keep the whole printing stack updated. As a practical boundary, leave remote administration off unless you need it, and do not forward the CUPS administration port through your router.

How to get started with CUPS

Choose an official installation route. Start with your Linux distribution’s supported packages and instructions; OpenPrinting also publishes CUPS in the Snap Store.⁶ Do not add a second installation merely because another download exists.
Check the printer connection. Use the manufacturer’s local-network or USB instructions. Confirm the model’s compatibility before changing your existing setup.
Open printer settings. CUPS administration is available at http://localhost:631/admin/ on the computer running it.¹ Here, “localhost” means that computer. Start with its normal printer settings if those feel more comfortable.
Add the printer deliberately. Select the matching local device and use IPP Everywhere when supported. If setup stalls, consult the official administration guide rather than guessing a driver.
Print one harmless page. Check paper size, orientation and both-sided printing if available. For a document-preparation companion, see PDF Arranger.
Review privacy before regular use. Check encryption, retention and whether sharing is necessary. Print another test after changing settings, then try sensitive paperwork only when the intended route works.

Who should use CUPS, and who might prefer something else?

CUPS is worth considering for a Linux household, a shared study or a small office that wants to manage its own printing. Choose it when you value control and can take responsibility for updates. For broader reading about locally managed household devices, the Academy’s openHAB article is a useful next stop.

If you only want to print from an iPhone or iPad, consider the built-in AirPrint workflow: Apple documents printing to an AirPrint-enabled printer on the same Wi-Fi network.⁸ Try that simpler route before taking on a separate print server.

Frequently asked questions about CUPS

Is CUPS free?

Yes: its licence grants no-charge rights.² Printer supplies, hardware and any paid technical help remain separate costs.

Can CUPS print without the internet?

Its supported connections include USB and local-network printers.⁴ Choose one of those routes, then try a harmless page with your internet connection disconnected. Check your particular printer’s requirements before relying on this for important work.

Does CUPS encrypt print jobs?

IPPS requires connection encryption.⁴ Choose it when supported. Do not infer that stored job files are protected by the same setting; review retention separately.

Should iPhone users install OpenPrinting CUPS?

Start with Apple’s built-in printing instructions and a compatible printer. Running a separate server makes more sense when you have a specific sharing need than when you simply want to print one document.