Screenshot Pixel Measure Tool

Screen Ruler is the ultimate pixel-perfect measurement tool for screenshots, photos, blueprints, floor plans, and any image. Whether you're a UI designer checking spacing, an architect measuring floor plans, or an engineer verifying dimensions — Screen Ruler gives you precision tools right on your iPhone and iPad.

PRECISION MEASUREMENT TOOLS
• Side Rulers — Four-sided rulers along image edges with configurable origin corner
• Freehand Ruler — Drag, rotate, and position anywhere with 15° angle snapping
• Protractor — Measure angles with pinch, pan, and rotate gestures
• Grid Overlay — Adjustable grid lines with customizable thickness and opacity
• Floating Crosshair — Always-visible position tracker with real-time coordinates
• Multi-Point Distance — Tap multiple points to measure paths and cumulative distances
• Area Measurement — Draw polygons to calculate enclosed area in any unit

SMART CALIBRATION
• Draw-to-Calibrate — Draw a reference line on any image and enter its real-world length. The app auto-calculates the scale for all measurements
• Multiple Reference Points — Set different scales for different regions of the same image
• Preset Units — Pixels (1x, 2x, 3x), Centimeters, Millimeters, Inches, Picas
• Custom Ratio — Define any pixel-to-unit ratio for specialized workflows

AI-POWERED FEATURES
• Auto-Scale Detection — Automatically detects known objects (credit cards, coins, rulers, A4 paper) and calibrates the measurement scale
• Edge Detection — Snap measurements to detected edges and boundaries for pixel-perfect accuracy
• OCR Scale Reading — Reads scale legends on blueprints and maps to auto-configure measurements
• Object Dimension Detection — Automatically detects objects and draws dimension lines
• Perspective Correction — Straighten angled photos for more accurate measurements
• Smart Suggestions — AI recommends measurement units and tools based on image type
• Color Palette Extraction — Extract dominant colors with WCAG contrast compliance checking

COLOR ANALYSIS
• Magnifying Glass — 3x magnified view with crosshair for precise pixel targeting
• RGB & HEX Values — Instant color code readout at any point
• Pixel Coordinates — See exact X/Y position relative to any corner origin
• Scaled Coordinates — View coordinates in your chosen measurement unit

ANNOTATIONS & EXPORT
• Measurement Annotations — Draw lines, rectangles, and circles with persistent dimension labels
• Angle Annotations — Measure and label angles between any two lines
• Auto-Labeling — AI suggests meaningful names for your measurements
• Export as PDF or PNG — Save annotated images with all measurement data
• Measurement History — Save sessions with calibration data for later reference

WORKFLOW & PRODUCTIVITY
• Measurement Templates — Preset workflows for common tasks (Room Dimensions, UI Spacing, PCB Layout)
• Image Overlay — Compare two images with adjustable transparency
• Apple Pencil Support — Draw precision measurement lines on iPad
• Comparison Mode — Side-by-side synchronized view for before/after analysis
• AI Measurement Assistant — Get help with unit conversions, standards, and best practices

CUSTOMIZATION
• Theme Colors — Personalize with custom color themes
• Adjustable Opacity — Fine-tune visibility of rulers, grids, and protractor
• Ruler Position — Set measurement origin to any corner
• Grid Thickness — Choose from 5 thickness levels

WORKS WITH ANY IMAGE
• Screenshots — Auto-loads your latest screenshot
• Photo Library — Browse and select any photo
• Camera — Capture photos directly for measurement
• Files — Import images from the Files app
• 3D Touch — Quick action to open latest screenshot

Localized in 40+ languages including English, Spanish, French, German, Japanese, Chinese, Arabic, Hindi, Portuguese, Korean, and many more.

PERFECT FOR
Designers • Developers • QA • Digital Artists • Crafters • Photographers • Students • Architects • Content Creators

Privacy Policy
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