STEPSTPIGESIGSB-RepiOSmacOSAndroid

Aeshna

A professional STEP and IGES viewer for precise, private, and efficient 3D model inspection. Open and review models directly on your device with no account required and no cloud upload.

Download on the App StoreGet it on Google Play
Aeshna displaying a STEP model.
Aeshna displaying a STEP model.
Aeshna displaying a STEP model.

Key Features

Local Viewing

Inspect models directly on your device.

Open and review STEP and IGES models locally, with no account required and no cloud upload.

  • Local file opening
  • No account required
  • No cloud upload
Aeshna displaying a STEP model.
Aeshna displaying a STEP model.

STEP / IGES Support

View common 3D exchange formats.

Open widely used CAD exchange formats including STEP, STP, IGES, and IGS for precise model inspection.

  • STEP and STP support
  • IGES and IGS support
  • Designed for CAD exchange files
Aeshna format support for STEP and IGES files.
Aeshna format support for STEP and IGES files.

Assembly Tree

Browse hierarchy and focus on components.

Navigate the model tree, inspect node details, and isolate specific components while reviewing assemblies.

  • Browse model hierarchy
  • Inspect node details
  • Focus on selected components
Aeshna assembly tree interface.
Aeshna assembly tree interface.
Aeshna assembly tree interface.

Section View

Cut through models to inspect what is inside.

Use section views to examine internal structures, hidden geometry, and dense mechanical details.

  • Interactive sectioning
  • Inspect internal structures
  • Reveal hidden geometry
Aeshna section view inspection.
Aeshna section view inspection.
Aeshna section view inspection.

Exploded View

Understand assembly relationships clearly.

Separate assembly parts to better understand component relationships and the overall model structure.

  • Separate assembly parts
  • Review component relationships
  • Clarify model structure
Aeshna exploded assembly view.
Aeshna exploded assembly view.
Aeshna exploded assembly view.

B-Rep Measurement

Measure precise geometry directly from the model.

Measure distances, angles, and key dimensions directly from B-Rep geometry during inspection.

  • Distance measurement
  • Angle measurement
  • Dimension checks from B-Rep geometry
Aeshna exploded assembly view.
Aeshna exploded assembly view.
Aeshna exploded assembly view.

FAQ

How is Aeshna priced?

Aeshna is free for opening and reviewing STEP and IGES files. Advanced features require Pro access, available through an App Store or Google Play subscription, or as a lifetime Pro purchase.

Which platforms does Aeshna support?

Aeshna is available on iOS, macOS, and Android.

Which formats does Aeshna support?

Aeshna supports STEP, STP, IGES, and IGS files.

Does Aeshna require an account or cloud upload?

No. Models are opened and reviewed locally on your device, with no account required and no cloud upload.

Does Aeshna work offline?

Yes. STEP and IGES files already stored on your device can be opened and reviewed locally. Downloading files or accessing external services may still require a network connection.

What review tools does Aeshna include?

Aeshna includes assembly tree browsing, section view, exploded view, and B-Rep measurement tools.

Can Aeshna edit CAD models?

Aeshna is designed for viewing, inspection, and measurement. It is not a full CAD modeling or editing tool.

How can I request features or report bugs?

Visit Support to contact us by email or join the Discord community.

Inspect STEP and IGES models with Aeshna.

Download Aeshna for your Apple or Android devices.

Download on the App StoreGet it on Google Play