Both tools create single-line diagrams and floor plans in your browser. The biggest difference is how you draw: in 1wire you work directly on the diagram, like in a real drawing program. Goethals-Jacobs is a free fill-in form that automatically generates a single-line diagram; you can't edit the drawing itself.
Draw yourself and keep working anywhere
1wire and Goethals-Jacobs both create single-line diagrams and floor plans in your browser, without installation, and export your plans as a PDF for the inspection. The biggest difference is the way of working: do you draw on the diagram yourself, or do you fill in a form from which a diagram is built?
Goethals-Jacobs, the free tool at eendraadschema.goethals-jacobs.be, works like a fill-in form. You build up your installation as a list of boards, circuits and devices, and the tool automatically draws the single-line diagram from it. You can't edit the drawing itself: every change is made in the form. You save your diagram as a file on your own computer.
1wire is a real drawing program. You pick symbols from a library and place them directly on the drawing sheet, where you can also select, copy and rearrange them. Every project is saved online automatically, with version history, so you can keep working on any device and collaborate with colleagues.
The most important decision points first, followed by the features both tools offer.
| Comparison | Our pick 1wire | Goethals-Jacobs |
|---|---|---|
| Drawing and floor plan | ||
| Way of working | Drawing program: you draw directly on the diagram | Fill-in form: the diagram is built automatically from a list |
| Edit the drawing itself | ✓ Yes, directly | ✕ Only via the form |
| Single-line diagram first, then floor plan | ✓ Yes | ✓ Yes |
| Floor plan first, then single-line diagram | ✓ Yes | ✕ No |
| Import the architect's plan | ✓ Yes | ✓ Yes |
| Draw walls, doors and windows | ✓ Yes | ✕ No |
| Material list | ✓ Automatic | ✕ No |
| Saving and collaboration | ||
| Automatic online saving | ✓ Yes | ✕ Local .eds file |
| Version history | ✓ Yes | ✕ Keep your own copies |
| Online backups | ✓ Yes | ✕ Up to you |
| Collaboration with multiple users | ✓ Yes | ✕ Send the file |
| Share a project via a link | ✓ Yes | ✕ No |
| Devices | ||
| Runs in the browser, without installation | ✓ Yes | ✓ Yes |
| The same project on another device | ✓ Immediately, via your account | Transfer the .eds file yourself |
| Mac and iPad | ✓ Yes | ✓ Yes |
| Keep working without internet | ✓ YesDuring a temporary outage; syncs afterwards | ✓ YesFiles are stored on your own computer |
| Printing and delivery | ||
| PDF export on A4 or A3 | ✓ Yes | ✓ Yes |
| Your own logo on the PDF | ✓ Yes | ✕ No |
| Official plans for the inspection | ✓ Yes | ✓ Yes |
| Price | ||
| Free drawing | ✓ Yes, unlimited | ✓ Yes |
| Price for one printed project | €25 | Free |
| Subscription for unlimited projects | €39/month or €299/year | Not applicable |
All prices shown exclude VAT.
Are you drawing the diagram of your own home once, and do you know your installation well? Then a free fill-in form may be enough, provided you're happy with the automatically generated diagram and keep the file safe. In 1wire you draw the diagram yourself, the project stays online and you only pay when you print the finished plan without restrictions.
You know the drawing conventions and prefer to build the diagram yourself on the drawing sheet rather than through a form. In 1wire you place, copy and rearrange symbols directly on the diagram. In addition, 1wire saves every project online with version history, puts your own logo on the PDF and automatically compiles a material list.
Do you draw at the office, at home and on site, or do colleagues work on the same projects? In 1wire you add extra users to your account and open each project on whatever device you have at hand. You let a customer take a look via a read-only link.
Draw your next project in 1wire and experience the difference between drawing and filling in for yourself.
In 1wire you draw directly on the single-line diagram: you pick symbols from the library, place them on the drawing sheet and select, copy or rearrange them there. Goethals-Jacobs works with a fill-in form: you build up the installation as a list and the tool draws the diagram from it. You can't edit that drawing in the tool itself; if you still want to adjust it, you have to export it as SVG and open it in another program.
Yes. The tool at eendraadschema.goethals-jacobs.be is free; a donation is optional. With 1wire you also draw for free. You only pay when you want to print a finished plan without restrictions: €25 per project, with lower project prices when you buy multiple projects. If you draw a lot, you can choose €39 per month or €299 per year for unlimited projects. All prices exclude VAT.
In 1wire, projects are saved online automatically in your account. You open them on any device and find earlier versions in the version history. Goethals-Jacobs saves your diagram as an .eds file on your own computer, with an automatic copy in the browser to recover your work after a crash.
Yes. In 1wire you import a PDF or image, choose which pages you need and turn each page into a separate floor. Goethals-Jacobs accepts a floor plan as an image, such as JPG or PNG, but not a PDF file.
Yes. 1wire runs in a modern web browser on Windows, Mac and iPad, without installation. You sign in on every device with the same account and find all your projects there.
Yes. You add colleagues as extra users of your account, so they work in the same projects. You let a customer take a look via a public read-only link.
Updated on 10 September 2026 based on publicly available information on the websites and documentation of 1wire and eendraadschema.goethals-jacobs.be. Features and prices may change. By Goethals-Jacobs we mean the free tool at eendraadschema.goethals-jacobs.be; 1wire is not affiliated with or sponsored by this tool or its maker.