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Printer Test Page vs Online Ruler

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Printer Test Page compared with Online Ruler
DetailPrinter Test Page logo Printer Test PageOnline Ruler logo Online Ruler
What it doesFree printer test pages, exact at 100% scale Measure anything on your screen with pixel-perfect accuracy
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFree Free
PricingNot given Not given
Key features
  • One-click printing from browser
  • Downloadable PDF test pages in A4 and US Letter
  • 100 mm scale reference bar for accuracy verification
  • CMYK color testing with per-channel isolation
  • Nozzle check for clogged inkjet channels
  • Printer alignment test with measured frames
  • Grayscale and tint ladder testing
  • Support for both inkjet and laser printers
  • Photo reproduction target test image
  • Vector-based PDFs with exact geometry
  • Smart Auto-Detect identifies your device from a database of 100+ profiles
  • Three calibration methods: auto-detect, screen diagonal, and credit card
  • Place rulers on any edge of the screen in any combination
  • Click-to-measure distances in any direction
  • Live cursor position tracking
  • Dark mode with automatic system preference detection
  • Support for four measurement units: cm, mm, inches, and pixels
What makes it different
  • Exact to the millimetre when printed at 100% scale
  • Native CMYK PDFs for measurement-grade accuracy
  • No data collection or uploads required
  • Isolates individual printer faults with specialized pages
  • Free with no accounts or watermarks
  • No installation required—runs entirely in your web browser
  • Achieves near pixel-perfect accuracy typically within 0.5mm for well-calibrated screens
  • Completely free with no ads, account, or limitations
  • Calibration saved locally so no need to recalibrate on each visit
  • Works on tablets and mobile devices with touchscreen support
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)2 no change since last check1 no change since last check
Trust Flow (Majestic)180
Citation Flow (Majestic)1717
Referring domains (Majestic)64

4 details filled in for both companies.

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