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PatternSpace

patternspace.caplaz.com

Free plan macOS
Visit patternspace.caplaz.com
Spec score 7.7 #9 of 24 in Display Calibration Software

What it is

PatternSpace is a macOS app for generating test patterns used in display calibration. It creates SDR and HDR patches, pattern grids, clipping checks, gamma tools, and color swatches. Its library contains more than 100 GPU-rendered patterns in Color, Checks, Geometry, Swatch, Gamma, and Clipping categories. Rendering uses a Metal EDR pipeline with up to 16-bit-per-channel output and patches locked to display refresh timing. It works with connected internal or external displays and requires macOS 15.6 or later on Apple Silicon or Intel Macs. The free plan includes 100+ patterns and 14 SDR reference presets; PatternSpace Pro costs $39.99, paid once and adds calibration integrations, unlimited Remote rendering, advanced HDR, and LUT and ICC export. DeckLink SDI Output is a separate $39.99, paid once and requires compatible Blackmagic hardware and Desktop Video 16.4.x. PatternSpace supplies patches but does not measure or automatically correct a display; display accuracy requires measurement hardware.

Spec sheet

Purpose
PatternSpace is a macOS test pattern generator for display calibration that renders SDR and HDR patches, pattern grids, clipping checks, gamma tools, and color swatches.Read 2 Oct 2026 · patternspace.caplaz.com
Intended users
The maker describes it as designed for display calibrators, reviewers, video engineers, and home theater installers who need predictable pattern output from a Mac.Read 2 Oct 2026 · patternspace.caplaz.com
Security
The maker says the app is sandboxed, limits network traffic to calibration protocols on the local network, and sends no analytics or telemetry to the internet.Read 2 Oct 2026 · patternspace.caplaz.com
Calibration integrations
Pro supports ColourSpace Network Server, CalMAN UPGCI, and PGenerator network automation.Read 2 Oct 2026 · patternspace.caplaz.com
Calibration limitation
PatternSpace provides patches but does not measure or automatically correct a display; display accuracy requires measurement hardware.Read 2 Oct 2026 · patternspace.caplaz.com
Display support
The app supports connected internal or external displays and requires macOS 15.6 or later on Apple Silicon or Intel Macs.Read 2 Oct 2026 · patternspace.caplaz.com
LUT tools
LUT Tools is marked beta; inspecting and building chains is free, while writing LUT or ICC files requires Pro.Read 2 Oct 2026 · patternspace.caplaz.com
Pattern library
It includes more than 100 GPU-rendered patterns across Color, Checks, Geometry, Swatch, Gamma, and Clipping categories.Read 2 Oct 2026 · patternspace.caplaz.com
Permissions
The maker states that the app does not access the camera, microphone, location, or Bluetooth, and uses read-only access to user-selected files.Read 2 Oct 2026 · patternspace.caplaz.com
Remote protocol
PatternSpace Remote is an openly documented WebSocket/JSON-RPC protocol with 4-digit pairing; its free evaluation allows up to 25 rendered patches per session.Read 2 Oct 2026 · patternspace.caplaz.com
Rendering
The app uses a Metal EDR pipeline with up to 16-bit-per-channel rendering and vsync-locked patch output.Read 2 Oct 2026 · patternspace.caplaz.com
SDI limits
DeckLink SDI output supports specified progressive 720p/1080p SDR modes; library patterns and HDR/UHD SDI are not supported.Read 2 Oct 2026 · patternspace.caplaz.com

Plans and prices

PatternSpace Free 100+ patterns · 14 SDR reference presets · up to 25 Remote patches per session Read 2 Oct 2026 · patternspace.caplaz.com
DeckLink SDI Output $39.99, paid once one-time · separate from Pro Requires compatible Blackmagic hardware and Desktop Video 16.4.x · supported progressive 720p/1080p · 10-bit YCbCr · solid and window patches Read 2 Oct 2026 · patternspace.caplaz.com
PatternSpace Pro $39.99, paid once one-time purchase Unlocks calibration software automation · unlimited Remote rendering · advanced HDR · LUT and ICC export Read 2 Oct 2026 · patternspace.caplaz.com

Every PatternSpace plan and price →

Strong points and limits

Strong points

  • More than 100 GPU-rendered patterns across six categories.
  • Supports connected internal and external displays.
  • Pro offers three calibration automation integrations.
  • LUT and ICC export available with Pro.

Limits

  • Requires macOS 15.6 or later.
  • Does not measure or automatically correct displays.
  • DeckLink SDI is separate and requires compatible hardware.
  • SDI excludes library patterns and HDR/UHD output.

Who it suits

It suits display calibrators, reviewers, video engineers, and home theater installers who need predictable pattern output from a Mac. Users who need display measurement or automatic correction must use measurement hardware separately.

Verdict

PatternSpace offers a substantial pattern library and calibration workflow options for Mac users. Its patches are not a substitute for measurement hardware, and some output and export capabilities require paid plans.

Where Specifiction places it

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