Dev tools · alternatives · 2026

24 alternatives to Online Ruler and Protractor

Online ruler helps to measure anything on your device screen

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Online Ruler and Protractor launched in 2024; newer entries below may have overtaken it.

1. 1
   Online Ruler – Measuring in inches/centimeters▲88

   Free online ruler for accurate measuring in inches, centimeters, and millimeters. Use our real size digital ruler on any phone, tablet, or computer.

   2025 · anruler.com · its alternatives →

2. 2
   Measure▲408

   Measure anything with your phone. Made by Google.

   2018 · play.google.com · its alternatives →

3. 3
   AR Ruler 3D▲119

   AR measurement of any object & specific distances via phone

   2024 · apps.apple.com · its alternatives →

4. 4
   Screen Ruler▲236

   Measure the web

   2024 · chromewebstore.google.com · its alternatives →

5. 5
   Screen Ruler - for Google Chrome▲143

   Made to measure. Built for everything else.

   2024 · chromewebstore.google.com · its alternatives →

6. 6
   Simple Online Ruler▲5

   Super Simple Online Ruler

   Jun 2026 · simpleonlineruler.com · its alternatives →

7. 7
   Ruler Online Free▲2

   Measure anything on your screen — actual size, no app needed

   Jun 2026 · ruleronline.pro · its alternatives →

8. 8
   Accurate Ruler▲1

   Free onlineRuler that shows actual real-world size on screen

   Sep 2026 · accurateruler.com · its alternatives →

9. 9
   Ruler.im▲10

   Online Ruler: measure objects & images, coding by PM with AI

   Jan 2026 · ruler.im · its alternatives →

10. 10
    RulerInches▲1

    Your Digital Ruler for Every Screen

    Jul 2026 · rulerinches.com · its alternatives →

11. 11
    AirMeasure▲713

    Turn your phone into a ruler with the power of AR

    2017 · its alternatives →

12. 12TM
    TakeMeasure – Make your phone a ruler▲35

    2016 · play.google.com · its alternatives →

13. 13
    PixelSnap▲945

    Measure every pixel on your screen with ease ✨

    2018 · pixelsnap.com · its alternatives →

14. 14
    Online Ruler▲1

    free vitrual ruler for mobile screen

    Jul 2026 · invovryx.com · its alternatives →

15. 15
    Rollova▲130

    A compact digital rolling ruler 📏

    2018 · indiegogo.com · its alternatives →

16. 16
    AR Fly Ruler - Use your smartphone to measure objects!▲7

    Virtual ruler

    2017 · apps.apple.com · its alternatives →

17. 17
    Free Online Ruler - Inch, CM & MM Ruler▲2

    Free Online Ruler - Measure in CM, MM & Inches on Any Screen

    Jun 2026 · its alternatives →

18. 18
    Rulerly▲1

    An online ruler that's actually calibrated to your screen

    Aug 2026 · its alternatives →

19. 19
    VisualRuler▲171

    Turns your iPhone into a ruler

    2016 · visualrulerapp.com · its alternatives →

20. 20
    AR MeasureKit app for iOS 11▲155

    Whatever you want to measure, we have a tool for that

    2017 · measurekit.com · its alternatives →

21. 21
    Online Protractor Tool▲1

    Free online protractor for angle measuring.

    Jan 2026 · nyjournal.com · its alternatives →

22. 22
    Cubit▲118

    Quartz turns your iPhone into a pocket-sized pro audio recording studio, with presets tailored to your environment and 100% non-destructive editing.

    2017 · madebywindmill.com · its alternatives →

23. 23
    Measure Tools - AR Ruler▲7

    Smart Measuring Tape for Room Dimensions, Area & 3D shapes

    2025 · its alternatives →

24. 24
    MeasureMate▲79

    The ultimate measuring tool for the web

    2019 · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →