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The free UML tool UMLet lets you draw UML diagrams with a light-weight, pop-up-free user interface. It lets you draw diagram sketches fast; export diagrams to pdf, eps, jpg, gif, svg, bmp, png, and system clipboard; share diagrams using Eclipse 3+; and create your own custom graphical elements. New in version 14.2: Fixed pixel displacements on export; improved relations; embeddable pdf fonts.
Unsuccessful Installs in the last 7 Days: 8
By adding the following code below to your website you will be able to add an install button for UMLet - UML Tool for Fast UML Diagrams.HTML Code:
Submitted by Mufiz Shaikh` on Sat, 2020-03-07 20:29
I like it a lot and it is my go to tool for class diagram. So far I have not faced any problem and serves my purpose very well
Submitted by Michael N. Lipp on Sun, 2020-02-02 09:07
I use UMLet about twice a year and have always liked it. But the current versio fails to install with:
An error occurred during the org.eclipse.equinox.internal.p2.engine.phases.CheckTrust phase.
Submitted by Missing name Mising name on Thu, 2020-02-06 08:17
We just tried a fresh install of latest Eclipse (pure download, no package manager) -- UMLet worked on our system.. Can you please send us more info (OS/JRE versions..) to firstname.lastname@example.org ? Thanks!
Submitted by Michael N. Lipp on Tue, 2020-02-25 06:54
Looking through the log, I found "java.io.IOException: Exception in opening zip file: /home/mnl/.p2/pool/plugins/com.umlet.plugin_14.3.0.jar". Copying the file manually to that location fixed the problem (i.e. after copying, I could install from marketplace).
Here's the full stacktrace:
!ENTRY org.eclipse.equinox.p2.engine 4 4 2020-02-25 12:30:25.452
!MESSAGE An error occurred during the org.eclipse.equinox.internal.p2.engine.phases.CheckTrust phase.
!SUBENTRY 1 org.eclipse.equinox.p2.engine 4 0 2020-02-25 12:30:25.452
!MESSAGE session context was:(profile=_home_mnl_tools_eclipse-latest_eclipse, phase=org.eclipse.equinox.internal.p2.engine.phases.CheckTrust, operand=, action=).
!SUBENTRY 1 org.eclipse.equinox.p2.engine 4 0 2020-02-25 12:30:25.452
!MESSAGE Error reading signed content.
java.io.IOException: Exception in opening zip file: /home/mnl/.p2/pool/plugins/com.umlet.plugin_14.3.0.jar
Caused by: java.nio.file.NoSuchFileException: /home/mnl/.p2/pool/plugins/com.umlet.plugin_14.3.0.jar
... 13 more
Submitted by Oliver Cole on Thu, 2019-09-12 13:49
I work for a large contractor doing air traffic control work for the FAA. We are lookijng at using this tool (I am evaluatiing), but we would want some kind of paid support. Do you all have maintenance/support contracts?
Submitted by Jonathan Comley on Sun, 2019-06-30 13:07
Thanks for your great tool.
Running Ubuntu 19.04 on Lenovo Yoga 530 AMD Ryzen 7 laptop.
Using UMLet from within Eclipse and right clicking on a diagram makes Eclipse crash. Any ideas?
Eclipse IDE for Java Developers
Version: 2019-03 (4.11.0)
Build id: 20190314-1200
OS: Linux, v.5.0.0-20-generic, x86_64 / gtk 3.24.8
Java version: 11.0.3
Submitted by Missing name Mising name on Wed, 2019-07-03 05:12
Hi! Thanks for reporting! A bit tricky to reproduce; just quick question: does it run stand-alone? Can you test on another Linux setup? And could we maybe move this thread to -> email@example.com ?
The UMLet Team
Submitted by Volodymyr Kniazkov on Mon, 2019-05-27 06:48
It is an amazing tool! It helps you to create any diagrams and export them as a pdf file!!!
Submitted by Bob Geriadiode on Tue, 2019-03-05 20:23
Just started to use UMLet to design a music-related database-driven application in Lazarus free pascal. I am very impressed with UMLet's intuitive user interface. It has enabled me to generate a suite of class diagrams at several levels of detail which exactly fit my needs.
Submitted by Mei Chee on Sun, 2019-02-24 04:36
I am Macos Mojave user. Initially I downloaded the umlet-eclipse-p2-14.3.0.zip file, unziped and copied the com.umlet plugin version 14.3 jar file to the Eclipse plugins area but it did not work then tried to place in the p2 but it did not work.. After many attempts, I managed to install UMLet uml tool fast uml diagrams as suggested in marketplace and it worked. I created a Use Case diagram and saved it and closed Eclipse. I reopened Eclipse and tried to access my use case diagram and it hanged Eclipse and I had to force Eclipse closed. This hangs the Eclipse every time. I don't know what to do now as this is for my programming course in Australia. I have access to the error logs and I can send it if needed.
Submitted by Missing name Mising name on Wed, 2019-02-27 09:08
Hi -- sorry to hear that, although unfort. we are not surprised.. First, it'd probably be best for you to use UMLet standalone on macOS, or if you only need very light-weight diagrams, the online version at www.umletino.com.
We are aware of an Eclipse plugin issue on macOS, but we have been unable to track it down, as the logs do not seem to point to the core issue here; we suppose it's an interplay with Swing. It usually happens with multiple UMLet windows open.
Submitted by Odile LAMBERT on Sun, 2018-09-30 11:13
This is a very nice software but full of bugs. On xubuntu 18.04 I crashed Eclipse 5 times in 30 minutes.Conclusion it is not usable for the moment
Submitted by Missing name Mising name on Mon, 2018-10-01 09:53
Hi -- we develop and test the plugin variant of UMLet mostly on Eclipse & Windows. It's a bit tricky to also check for the myriads of other combinations. If you can reproduce the crash, could you please send the Eclipse log entries contained in your workspace's .metadata/.log to firstname.lastname@example.org? Thanks, The UMLet Team
Submitted by Michael Grouse on Thu, 2018-05-03 10:04
I cannot get an editing cursor to appear in the lower right window where the attributes of a class are supposed to be edited. When I click on a line, I get a yellow line highlite, and no cursor. When I type nothing happens.
I am on a clean Oxygen install on OS X.
Not useable at this point.
Submitted by Missing name Mising name on Wed, 2018-05-16 11:15
we'll try to replicate this; given the large # of combinations of OS, Eclipse versions, and Java versions, such issues are tricky to test comprehensively. OS X & latest Ecl version is always a hot candidate for some mess-up.
Feel also free to directly notify us of such bugs via email.
Submitted by David Singleton on Wed, 2017-10-11 04:03
I am using Eclipse Juno. The installation worked well. After downloading the .zip file, copying it to the eclips plugins filder and restarting eclipse, I was able to draw my first diagram. It seems to work well.
Submitted by Pradeep Cs on Sun, 2017-07-30 04:44
I didnt see any download option.
Submitted by Dvd Gsng on Mon, 2017-02-20 05:05
- no update url
- no drag-able install icon
- not listed in Eclipse integrated marketplace search
Why isn't there a strict rule for marketplace that requires any plugin listed here to provide these? Horrible user experience.
Submitted by Missing name Mising name on Thu, 2017-03-02 05:22
A few comments to outline our view on this..
We have implemented an install icon and released it about two months ago for a few days, but hit some compatibility issues. After a relatively quick check did not result in a fix, we abandoned this thread for the time being; we want to focus on the tool itself, instead of its surrounding infrastructure, as our time is limited. But no excuse here, we just stumbled over some technicality, and, being lazy, did really not enjoy digging in.
On a more general note, I personally am not a very big fan of this drive towards "user friendly" install overheads; I personally dislike installers in general; am not fond, e.g., of the "virtual drive downloads" on OS X for many tools (why the extra layer?); and am bothered by how many plugins seem to hide/forget their simple basic package downloads in favor of update sites/drag-and-drop buttons etc. As for the latter, if you use Eclipse over X-Windows, or Eclipse on a server farm without internet access, these "helpful" installation methods won't work, might send Eclipse (and other tools) into a non-stop and futile internet lookup; and require relying on the old school package download anyway -- if that way is neglected or unsupported, the whole exercise becomes excruciating fast. In short, in many instances I like to download what I want directly, and in the version I choose, and start it right away. But I am aware that that's a very personal take on all this, and largely gut-driven -- we will in fact look into install support down the line again, and hope to then put this to rest.
Submitted by Jai Bin on Fri, 2016-08-19 03:11
Try to download this for my Eclipse, but download button not available. It's also not possible to find the tool via the marketplace in Eclipse. How can I get this tool?
Submitted by Bernardo LÃ³pez on Wed, 2016-07-27 14:35
Great tool, I'd recommend it to any level (beginner to pro).
Easy to use, complete and free!
Submitted by Pankaj Gupta on Thu, 2016-07-07 08:21
Nice and helpful. easy to use and fast.
Submitted by Vit Bernatik on Fri, 2016-04-01 12:19
Submitted by Mathias Zenner on Thu, 2016-03-31 15:59
This tool is great once you get started... Great job for the people who made it possible to use if open source.
Submitted by Andres Oviedo on Wed, 2016-02-03 06:35
This tool is enough to make fast simple & nice documentation.
To install the plugin just drop the jar into the 'eclipse/plugins' folder.
Submitted by Tomas Cabrera on Thu, 2016-01-21 06:28
This tool cannot be downloaded from the Marketplace, no download or install button available
Submitted by Harx Mising name on Tue, 2015-12-08 10:12
This is an outstanding, lightweight tool for quick UML markup. This is the perfect tool for someone that is a developer, not a business analyst, and when just needs to quickly diagram some knowledge to add to a story or wiki.
I've used mostly Visio in the past but was looking for something open-source and Linux-friendly without all the bells and whistles, this is exactly what I needed.
Submitted by Glenn Dollard on Wed, 2015-11-25 09:59
No need for over-loaded UML applications, this tool fits the bill nicely.
Submitted by John Marcinek on Fri, 2015-11-20 07:51
There's no download button. I created an account and logged in but still no button.
Submitted by Mithun Pissay on Thu, 2015-11-12 07:13
Simplistic approach at UML designs and very light weight, loving it. Am using as stand alone without eclipse integration, it makes navigation and reference lookup on code very much comfortable.
Submitted by Jianwu Chen on Sun, 2015-10-11 20:25
There's no install button for this add on.
Submitted by Binh Nguyen on Thu, 2015-09-24 20:03
UMLet makes going back and modifying diagrams so easy!
Submitted by Rafal Piotrowski on Wed, 2015-09-16 04:42
Submitted by Fabio Almeida on Wed, 2015-08-26 20:07
It's a simple and powerful tool.
Submitted by Chris No on Wed, 2015-02-04 03:12
I love the ease of making quick UML diagrams with this. Easy to use and customize elements and charts for you own purposes. There are however a few disadvantages that drive me nuts while trying to make quick diagrams on the fly:
- Line tools like the "has a" and "is a" always get copied behind to the back layer, this is EXTREMELY frustrating when trying to align new elements up. Why would you ever want to copy a new object to the back z index? You can right click and change the layer to bring it to the front, but this just destroys the whole flow and experience.
- Its a bit tricky to grab and move the smaller elements as the grab handle for elements is relatively small.
- It takes a bit of getting used to, but ctrl selecting is used to lasso objects where simple clicks move the screen around. I understand this is more of a preference but I find it much nicer to select lasso with a simple click and use the ctrl + mouse to move around.
- When double clicking on elements (this duplicates them), it sometimes places itself at the end of another line segment automatically attaching itself to that line or connector. This means I have to either copy and paste (Which can have the same effect depending on the area of the screen, forcing me to move the screen so that the upper left corner is free (where the new element gets pasted)) or create one from the elements palatte.
Other than that, I really do like how fast I can make beautiful custom UML diagrams with little effort!
Submitted by Missing name Mising name on Tue, 2015-02-24 08:19
Quick hint on your last point: while pressing SHIFT, elements/relations don't stick (we will put this more prominently in the hints/FAQ..)
Submitted by Serch Romo on Mon, 2015-01-12 12:13
This is a very nice and easy to use application. To download it I visited the next URL: www.umlet.com/changes.htm
Besides if you want to get more information, then visit the web site:www.umlet.com
No problems to run it in Linux and Windows it's so beautiful :')
Submitted by Rodrigo Alarcon on Tue, 2014-12-30 09:18
It will take a little to learn the fields you can add to the "properties" for each UML element but once you understand how it works it is so easy to get the job done!
Submitted by Mark Secrist on Thu, 2014-10-30 06:43
What the heck?? Is this no longer available? I'm logged in but now apparent download link.
Submitted by Avinash Anand on Mon, 2014-08-25 01:45
nice and easy to use tool. export feature is very helpful.
Submitted by Jose Eguia on Sat, 2014-08-23 12:00
Very nice piece of software. Easy to use, responsive, ideal for quick UML diagrams without having any code generation baggage behind it.
Submitted by Jose Luis Jauregui Guillen on Tue, 2014-07-01 15:17
very good, thanks guys!!!
Submitted by Christoph Knabe on Fri, 2014-06-06 09:12
Instantly works. Very good for rapidly drawing ideas.
I use it regularly for producing documentation with UML diagrams inside.
In order to avoid multiple rastering defects in drawings, I use the SVG export and automatically transform the .svg files to .odg (OpenOffice Drawing and Graphics) by svg2office-1.2.2.jar.
The result looks very clean.
For manual high quality export the diagram as EPS, insert it into OpenOffice by Insert > Image > From File...
Inside OpenOffice it looks not yet good, as this uses only the EPS preview.
Then print the document to a PDF printer (Do not use export!) and you will have the diagram in high-quality vector graphics in the PDF.
Submitted by Alex K on Sat, 2014-03-29 01:51
This is the best way to quickly sketch out diagrams! By focusing on the content the tool lets to experiment quickly and does not slow down the thinking. Other tools do not come close (well maybe SDEEdit for sequence diagrams).
I love custom elements feature too, very powerful!
Submitted by Missing name Mising name on Wed, 2014-03-19 03:33
very great uml tool
Submitted by Simon Rohlwing on Thu, 2014-02-27 08:01
A good alternative for dia. Especially with the support for properties of the elements.
A little awkward to use, but you get used to that quickly.
But could do much better if it had (I tested version 12.2):
- working z-order (automagical isn't working good - copied object is behind original object - who would want that?)
z-order context menu would be good
- display which element-type i'm working (may be even with support to change)
- fields for different properties
Without correct z-ordering my diagrams look ugly.
Submitted by Missing name Mising name on Thu, 2014-04-17 12:08
There is z-order support via the "layer=1,-1,2,-2.." command, but a bit tricky to find; v13 will have context-sensitive help in the panel, and maybe element context menu entries for layering. v13 will also allow more transparent element type handling, including on-the-fly changes between similar elements. "fields for different properties" (if I understand correctly) are unlikely to come; we prefer the single text panel approach to pop-ups, separate fields, and any other interface elements that restrict free text flow and UMLet's copy/paste logic (if I interpret this point wrong, let email@example.com know). Finally, all elements are transparent by default; we might look into opacity in the future.
Submitted by Steven Edmunds on Tue, 2014-02-11 10:19
I'm not sure why anyone would download this after seeing the developer's website. The sole purpose of the site looks to be tricking people into accidentally clicking on one of the many sketchy camouflaged advertisements.
Submitted by Missing name Mising name on Wed, 2014-04-16 12:45
Our Web site's design could indeed be improved; it's just more fun to work on UMLet than on HTML (btw, v13 will probably be out in a few weeks). We use Google ads, and try to manually block the more aggressive ads (eg, those with large download buttons) that started to appear in the ad rotations in the last 12-18 months. (It's a bit tricky, as everyone might see different ads.)
Submitted by Michael Price on Sat, 2013-12-07 06:43
I can quickly start drawing from the palette. The number of features is huge. Always adding new features. Very intuitive. Can even create my diagram elements.