No BS Ruler Firefox

No BS Ruler

Measure pixels without the usual nonsense. Drag, align, and get exact distances. Device toolbar friendly.

Features & Capabilities

No Bias Scale Ruler (No BS Ruler) is a simple, no-nonsense tool for measuring pixels directly on any webpage.

Place vertical and horizontal guide lines, drag them freely, and get precise distance measurements in real time—between elements or relative to the viewport.

What you can do:

  • Add unlimited vertical and horizontal lines
  • Measure distances between lines or from viewport edges
  • Reposition lines easily with drag & drop and keyboard arrows
  • Remove lines instantly and keep measurements updated
  • Customize line color and ruler position to fit your workflow

Built for real workflow: This tool is designed for developers, testers, and designers who need quick, reliable measurements without dealing with bloated or intrusive tools.

Whether you're:

  • checking layout spacing
  • validating UI consistency
  • aligning elements
  • inspecting responsive designs

…it just works.

Device toolbar friendly Works seamlessly in Chrome’s device toolbar, so you can measure layouts in responsive mode without breaking your flow.

Why this exists Most measurement tools are either overcomplicated, imprecise, or get in the way. This one doesn’t.

How to use

  • Click and drag from the rulers to place lines.
  • Open the menu to customize
  • Select a line by clicking on it and drag it to relocate it
  • Select a line by clicking on it and press supr to delete it.
Privacy This extension does not collect, store, or transmit any personal data.

User Growth & Download Statistics

Manifest V3 Add-on
By:
Jannator
Daily users:
1
Version:
1.1 Last updated: 2026-08-27
Version code:
6434950
Creation date:
2026-08-24
Firefox add-on GUID:
nobstruler@jannator.extension
Firefox add-on numeric ID:
3059619
Weekly download count:
2
Firefox on Android:
No
Risk:
Moderate risk impact High risk likelihood
Permissions:
Content scripts matches:
  • <all_urls>
Size:
42.99KB
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-09-01
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
Jannator
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/no-bs-ruler/

Is No BS Ruler Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

No BS Ruler requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

No BS Ruler is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • High **** ********* *** ******** ****** *** ********** *** *** ** ****** ** *****
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
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