Based on our record, Dia seems to be a lot more popular than Copper. While we know about 11 links to Dia, we've tracked only 1 mention of Copper. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I used GIMP (https://www.gimp.org) and Dia Diagram Editor (http://dia-installer.de) I can't say I was very happy with either for what I was doing (laying out mount points for solar panels) FreeCAD (https://www.freecad.org) looks like a good option as does Inkscape but I believe it has a high learning curve. I am also playing around with Open Solar's online tool (https://app.opensolar.com). Source: 12 months ago
Perhaps the old Dia (works on W10). There's a portable version on Portableapps.com. Source: about 1 year ago
Its a bit old and pretty simple, but I use Dia frequently. Source: about 1 year ago
Dia Diagram Editor for simple schematics and flowchart type diagrams for something very quick and easy to pick up in five minutes, and. Source: about 1 year ago
Project 1: Use the open source UML diagrammer, DIA (link) to make a readable network map :). Source: over 1 year ago
I've seen Copper CRM work quite well for contractors (assuming that your team is using or open to using Google Workspace - if you're not using Google Workspace, I'd probably ask why not? But then recommend you to use Pipedrive if you're not willing to switch to Google Workspace). Source: over 1 year ago
draw.io - Online diagramming application
Zoho CRM - Omnichannel CRM for Businesses of all sizes
yEd - yEd is a free desktop application to quickly create, import, edit, and automatically arrange diagrams. It runs on Windows, Mac OS X, and Unix/Linux.
Pipedrive - Sales pipeline software that gets you organized. Helps you focus on the right deals, so easy to use that salespeople just love it. Great for small teams.
LucidChart - LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.
Freshsales CRM - A full-fledged CRM for high-velocity sales teams.