EFA CAMverse › ODB++ viewer

NewDXF and GenCAD – for production, test field and EFA SmartSuite→ Format guide · ODB++

Open and view ODB++ files – free on Windows.

Received an ODB++ package (.tgz, .zip) and need to look inside? EFA CAMverse opens ODB++ natively – no unpacking, no cloud upload – and shows layers, nets, stackup, components and drills, in 2D and 3D.

ODB++ format icon
.tgz .tar.gz .zip unpacked folder

ODB++ – the complete PCB product model in one package.

The format

What is ODB++?

ODB++ (“Open Database++”) is a hierarchical database format that bundles a complete PCB product model in one package: layers, nets, components, bill of materials, layer stackup, drills and manufacturing attributes. Physically it is a directory tree (folders like steps/, layers/, …), usually exchanged as a compressed archive (.tgz or .zip).

ODB++ was developed in the mid-1990s by Valor Computerized Systems; via Mentor Graphics it belongs to Siemens EDA today. It is very widely used in professional PCB fabrication and assembly, because manufacturing (CAM) can process the coherent data largely automatically and without queries.

3 steps

How to open an ODB++ file

1

Install EFA CAMverse

Download for free and install – a native Windows application (10/11, 64-bit), free to use as a viewer.

2

Open the ODB++ package

Open the delivered archive (.tgz, .tar.gz, .zip) directly – no unpacking required. An already unpacked ODB++ directory tree is read as well; the version number from the package is displayed.

3

View and verify

Toggle layers individually, highlight nets with a double-click, read stackup and drill tables, inspect components – and switch to the 3D view with one click.

In the viewer

What EFA CAMverse shows you from the ODB++ package

Layers and stackup

Layers & stackup

Toggle every layer, control transparency and read the material build-up in the stackup pane – even if the file contains no explicit stackup.

Nets and drill holes

Nets & drills

Netlist pane with bidirectional highlight – double-click to zoom to a net. Drill tables show tools and diameters.

Components and bill of materials

Components & BOM

All components with reference, value, package and every attribute from the package – for bill of materials, quotation and assembly print.

Learn more →
Assembly view

Assembly print & variants

Top and bottom as assembly print – straight from the component data of the package; show or hide the components of the customer variant with a click.

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3D view

3D view

View the board in space – with components as 3D bodies, rotate and zoom freely.

Learn more →
Panels

Panels

Panels (step-and-repeat) are displayed as well – each single board at its position within the panel.

Measuring

Measure & inspect

Precise distance and geometry measurement right in the layer view.

Image output

Image output

Output or print the view as PDF, PNG or JPG – for documentation and coordination.

Offline and local

100 % local

A native Windows application – no cloud, no upload. Your manufacturing data stays on your machine.

Pass on

From the ODB++ package to what production and the test field need.

EFA CAMverse passes the ODB++ package on directly – as DXF or as GenCAD, without going through another program.

DXF

New

Depaneling · design · documentation

Outline, milling channels, tabs and drill holes for your depaneling software, component outlines and fiducials for your CAD program, all layers as a drawing.

With ODB++: a panel goes out complete – all single boards including frame and milling paths – or as one board with the positions of all others.

More about DXF export →

GenCAD 1.4

In-circuit test · flying probe · AOI · placement machine

The basis for programming your test and production equipment – optionally with only the components of the customer variant.

With ODB++: the nets come along – the basis for in-circuit tester and flying probe test programs.

More about GenCAD export →
EFA SmartSuite

From the ODB++ package straight to inspection.

Together with EFA SmartSuite, EFA CAMverse turns the ODB++ package into a fully set-up EFA project – the way to automated inspection of the board shrinks to a few steps.

  • 1The project is created automatically: the EFA project takes over coordinates, bill of materials and the assembly drawings of top and bottom side directly – no importing, no cross-checking.
  • 2Inspection jobs ready to go: one job per side – with exactly the components placed on that side.
  • 3Add an image, start inspecting: with a high-resolution image of the board, automated inspection starts right away.

With ODB++: the components of both sides are already in the package – no coordinate file needed.

More about EFA SmartSuite →
Good to know

ODB++ compared

ODB++ vs. Gerber

Gerber describes individual layer images – ODB++ is an “intelligent” relational full model: geometry, net logic and component information live together in one database. That is why manufacturing can process ODB++ data largely without queries.

ODB++ vs. IPC-2581

Both solve the same task. The key difference is governance: ODB++ is controlled by one vendor (Siemens EDA), IPC-2581 is a vendor-neutral industry standard. Structurally, ODB++ is a directory tree while IPC-2581 is a single XML file – EFA CAMverse reads both.

And when the next customer delivers something else: EFA CAMverse also opens 8 more PCB/CAM formats – in the same tool, with the same way of working.

An ODB++ file on your desk? See it in 2 minutes.

EFA CAMverse is free to use as a viewer – unlock advanced features whenever you need them. Native on Windows, your data stays local.

EFA CAMverse 2026 · free viewer · Windows 10/11 · 64-bit