Protractor
Easily measure angles in your browser window.
Move the two guides around to accurately match any vertex.
Customize precision, units, colors, and more.
The protractor can be easily resized, nudged, locked, and rotated.
Code is open source on Github.
Also on Firefox: https://addons.mozilla.org/en-US/firefox/addon/protractor/
Latest reviews
Great for math exercises.
This needs some shade toggle or color options I can't see protractor itself where I need to measure
girl its not "i wish i could give 0 stars" its "i wish i could give 6 stars"
which i could give 0 stars best thing ever!
Super useful, came in very handy for a project.
Amazing
This is an awesome tool!
Awesome tool, thank you!
Brilliant tool - would love it if it could also display mils (6400)!
Nice tool, thank you so much
For years and years I've searched for a tool that could measure angles. No learning curve here. Accuracy up to 4 decimal digits. Zero-angle (+ x-axis) rotatable to any angle. Click- nudge to get an angle vertex exactly over a point. Zoomable. There are other options and most are adjustable. Beyond imaginable! No improvements left for me except going outside the browsers!
just amazing bro
Simple to use and very effiency!! I really hint it to everyone.
Simple to use and very effiency!! I really hint it to everyone.
The tool seems to be very helpful. However, the numbering system on my protractor is counterclockwise and I am unable to rectify the problem [90 is 270 and vice versa]. I've tried uninstalling and reinstalling multiple times and it appears to be the default. Please help!
The tool seems to be very helpful. However, the numbering system on my protractor is counterclockwise and I am unable to rectify the problem [90 is 270 and vice versa]. I've tried uninstalling and reinstalling multiple times and it appears to be the default. Please help!
very simple to use, if a little difficult to center exactly. but overall it helped a lot :)
very simple to use, if a little difficult to center exactly. but overall it helped a lot :)
It's been really helpful during my online classes
It's been really helpful during my online classes
Precis vad jag behövde, mycket bra!
Fantastic UI design, not fiddly at all.
Fantastic UI design, not fiddly at all.
It is anti-clockwise. No setting to flip it. Useless.
It is anti-clockwise. No setting to flip it. Useless.
Awesome tool, wish I could double click on a number/angle to copy it.
Awesome tool, wish I could double click on a number/angle to copy it.
just what i needed
just what i needed
but it is not visible over some colors ,NEED IN BLACK COLOR
but it is not visible over some colors ,NEED IN BLACK COLOR
Doesn't ever open. Totally unusable.
Doesn't ever open. Totally unusable.
Maybe I don't know how to use it, but I click on the extension and NOTHING happens.
Great tool for measure joint angles for patients virtually! Thanks!
Great tool for measure joint angles for patients virtually! Thanks!
Simple, stylish and perfect for what I needed.
Simple, stylish and perfect for what I needed.
It works :D
It works :D
Exactly what I wanted. Thank you!
Exactly what I wanted. Thank you!
Really helpful for me. From my window I can see a church spire on the horizon, about 4 miles away. I took a reading with my compass (297°) then, using the protractor, I centred it on my location in Google Maps and set the line to that reading. Lo and behold the line went very close to a church marked on the map that was actually 4.14 miles away! (The church was St. Jude's in Hampstead, London. Download the protractor and you should be able to work out which street I live in!)
Really helpful for me. From my window I can see a church spire on the horizon, about 4 miles away. I took a reading with my compass (297°) then, using the protractor, I centred it on my location in Google Maps and set the line to that reading. Lo and behold the line went very close to a church marked on the map that was actually 4.14 miles away! (The church was St. Jude's in Hampstead, London. Download the protractor and you should be able to work out which street I live in!)
It is perfect. It is accurate and no bugs or unworking things on it. Perfect for geo homework.
It is perfect. It is accurate and no bugs or unworking things on it. Perfect for geo homework.
this is so useful and i think it is perfect
this is so useful and i think it is perfect
This extension is great! I would suggest to make "clockwise" rotation AND 0 degree at the North to make measurement of North bearing much easier. Thanks to the option page, I can customize that by my own. But I would suggest to make it a default option to save everybody's time.
This extension is great! I would suggest to make "clockwise" rotation AND 0 degree at the North to make measurement of North bearing much easier. Thanks to the option page, I can customize that by my own. But I would suggest to make it a default option to save everybody's time.
