Electrical and Fluid Schematic Palettes/Templates

I’m interested in doing basic electrical circuits as well as fluid schematics in LibreOffice Draw. MS Visio has palettes with pre-made symbols, quite a few of them, that you can just drop onto your Visio diagram. Does LO have any reliable, virus-free, malware-free equivalents available anywhere? I saw a few links, but they did not appear to me to be on reputable websites.


There is freie Schaltzeichen OpenOffice extension, works in LibreOffice too, that adds couple of hundred circuit diagrams symbols.

It is hosted on reputable Google Code.

The project’s website is in German. Download the english version 1.3 of extension from here, although german one is newer being 1.4 and can be downloaded following this link.

Install it in LibreOffice by going to Tools → Extension Manager → Add and opening downloaded file.

After installation, for optimal results it is advised to set following options in Draw located under Tools → Options → LibreOffice Draw → Grid:

  • Horizontal and Vertical Resolution to 0,25 cm
  • Horizontal and Vertical Subdivision to 1 space

New symbols can be accessed from appropriate themes in Tools → Gallery.

Right, and the sequel of “freie Schaltzeichen” is: GitHub - sschmidhuber/LibreSymbols: A set of gallery symbols for LibreOffice and Apache OpenOffice.

This does not work in the German LO version, does not show any symbols, may be conflicts with other symbol extension?

If you are lucky, then visio import filter might help you: Visio Import Filter

About websites being “reputable” or not, I have not heard of any cases where opening file with OpenOffice or LibreOffice with Macros disabled was harmful. Just make sure it is not .exe, .com or .bat file or use open dialog in LibreOffice. After opening save the file from LibreOffice, and you should be all good.

… extensions don’t matter. you can hide code in almost anything that is to be executed and everything has vulnerabilities. Just make sure the developer is reputable and cares about said reputation. AKA google them and read up on them. See if they have many projects, if those projects are used and rated, etc. Open source is best, especially if that source has obviously been reviewed by others.

In some cases opening the file could expose you. Not sure about what Libre does with files it opens behind the scenes…

rm -r /

This is paranoia mixed with half-truths. As you can see even my comment contains malicious code. Is your computer ruined now? Extensions DO matter.