DisplayCAL

Overview

DisplayCAL is a free display calibration and profiling application built on ArgyllCMS. It suits people who already have a supported measurement instrument and want more than a basic ICC profile, including verification and video LUT work. Its breadth is compelling, but the instrument and ArgyllCMS are prerequisites, not optional extras.

It combines display measurements with calibration, profile creation and reporting, uniformity checks, and support for multi-display setups. It is free software under GNU GPL version 3 or later, supplied without warranty; voluntary contributions support development and technical assistance.

For category comparisons, browse Display Calibration Software and Color Management Software.

Key features

• Calibration and ICC profiles: With a supported instrument, DisplayCAL measures displays and creates calibrations and exportable ICC profiles. This is the core reason to choose it, but it has no standalone value for someone without compatible measurement hardware.
• Multi-display calibration: It supports multi-display setups and multi-monitor calibration, making it relevant to workstations where one screen is not enough.
• Verification and uniformity: It can verify and report on profiles and display devices, and measure display uniformity. These checks help users assess a display beyond the initial calibration.
• Video LUTs: It creates video 3D LUTs and offers optional CIECAM02 gamut mapping. The documented integrations include madVR and DaVinci Resolve 10.1 or newer as pattern generators; Chromecast support is an optional dependency.
• Corrections and test charts: Colorimeter corrections can be imported from vendor software or created from measurements when a spectrometer is available. The test chart editor builds patch charts and accepts pasted data from CGATS, tab-delimited CSV, and spreadsheet applications.
• Download integrity: SHA-256 checksums are provided so users can verify downloaded files.

Pricing

DisplayCAL costs nothing. The free plan is the software itself under GNU GPL version 3 or later, with optional financial contributions; it includes ICC profile export, LUT calibration, multi-monitor calibration, and HDR calibration. There is no paid tier or trial to weigh against it. The trade-off is practical rather than financial: users must supply a supported instrument and ArgyllCMS 1.0 or newer, and the software comes without warranty.

Platforms

DisplayCAL supports Linux, macOS, and Windows. Its cross-platform availability is useful for mixed desktop environments, though each installation still depends on ArgyllCMS and compatible measurement hardware.

Who it's for

Choose DisplayCAL if you need measured calibration, profile verification, uniformity checks, or video LUT creation and already have the required instrument. It is also a strong fit for multi-display workflows and users who want to build custom patch charts or apply colorimeter corrections. Look elsewhere if you need calibration without measurement hardware or do not want the ArgyllCMS dependency. DisplayCAL is developed and maintained by Florian Höch; ArgyllCMS is maintained by Graeme W. Gill. The project links to forums, a wiki, documentation, help, and an issue tracker.

Pros and cons

• Pro: Calibration, ICC profile export, verification, uniformity measurement, and 3D LUT creation are available without a software charge, giving instrument owners a broad color-management toolkit.
• Pro: Multi-display support, flexible chart input, and optional CIECAM02 gamut mapping serve workflows that go beyond a single screen and a standard profile.
• Con: A supported measurement instrument is required, so it is not a software-only route to calibration.
• Con: ArgyllCMS 1.0 or newer is also required, adding a dependency that may deter users seeking a self-contained application.
• Con: It is supplied without warranty, which matters to users who prefer a product backed by a warranty commitment.

Alternatives

• ArgyllCMS is the free, cross-platform command-line alternative for users comfortable working directly with tools rather than DisplayCAL's application; commercial and non-GPL use requires a separate license.
• EIZO ColorNavigator 7 is a free download to consider if you use a compatible EIZO ColorEdge monitor.
• QUBYX OS Tools is a free, cross-platform open-source option whose code users can audit, inspect, and adapt.
• PatternSpace is a macOS freemium alternative: its free plan includes 100+ patterns, 14 SDR reference presets, and up to 25 Remote patches per session; Pro costs $39.99, paid once.
• X-Rite i1Profiler is a paid option for users comparing commercial calibration software.
• Calman is a paid option for users seeking a bundle that can include Calman Home software and a C6 HDR5000 colorimeter and/or G1 pattern generator; the Home bundle starts at $449, paid once.
• NEC SpectraView II is a paid alternative with a downloadable software plan at $89, paid once, or a Professional Display Calibration Bundle at $344, paid once.
• ColourSpace is a paid option for users comparing commercial calibration software on Windows or macOS.

Verdict

DisplayCAL is the right choice for instrument owners who want a free, cross-platform toolkit spanning calibration, profile checks, uniformity measurements, and video LUTs. Its main reason to choose is that range without a software fee; its main reason to look elsewhere is the required hardware and ArgyllCMS dependency.