Icelandic software startup Euler has released Euler Viewer, a browser-based tool that gives metal 3D printing operators live visibility into their builds at no cost, with no hardware required.
Each laser powder bed fusion (LPBF) build generates thousands of high-resolution images, one after every layer. Until now, that data has had nowhere useful to go. Operators running builds remotely have instead depended on remote desktop software connected to the 3D printer’s control PC, a machine that typically shares a factory network with proprietary build files and sensitive intellectual property. Euler Viewer is designed to make both practices unnecessary.
Secure browser access for live builds
The platform streams powder bed images directly to a browser as a build progresses, built on SOC 2 Type II security controls and requiring no connection to the printer’s control PC. Operators can move through a build layer by layer, share access with colleagues via a link, and for printers that cannot be connected directly, upload build data manually. Euler says setup takes minutes and the platform works with the vast majority of LPBF systems.
According to the startup, Euler Viewer is free. The paid tier adds automated defect detection, predictive failure alerts, statistical process control, and automated build reports. Getting operators onto the free platform first is the cleaner path to selling them the rest.
The company closed a €2 million seed round in November 2025, co-led by Frumtak Ventures and Kvanted, and holds several patent applications in real-time monitoring and failure prediction for additive manufacturing. Its platform has processed millions of build layers across customers in multiple countries.
The wider significance is that build monitoring in metal AM has historically been the domain of expensive, hardware-dependent systems sold as premium add-ons. A software-only tool that requires nothing beyond a browser sets a different baseline for what basic process visibility should cost, and that has implications for how the rest of the monitoring market prices itself.
Bypassing the proprietary machine ecosystem limit
Build monitoring in metal AM has typically required either dedicated hardware or a proprietary machine ecosystem to access.
For instance, Phase3D’s Fringe Research software, developed with the US Air Force and NASA, measures anomalies during PBF builds and correlates them to defects such as porosity in the final part. The system depends on structured light hardware mounted to the printer, which means a facility has to procure and install additional equipment before any monitoring takes place.
Elsewhere, Velo3D’s Assure software delivers real-time process and quality monitoring through in-built sensors and optics native to its Sapphire machines. That makes monitoring functional only for operators who have already bought into Velo3D’s hardware. Facilities running other LPBF systems have no equivalent access through that route.
The constraint both tools share is that monitoring capability has been priced and packaged as a premium, available only after a procurement decision has already been made. Euler Viewer sits outside that model entirely by surfacing data that already exists inside the machines.
Although, a technical distinction remains. Euler analyzes the 2D optical images provided by the machine’s internal cameras, while hardware-dependent systems like Phase3D use active sensors to generate 3D topographical measurements.
3D Printing Industry is inviting speakers for its 2026 Additive Manufacturing Applications (AMA) series, covering Energy, Healthcare, Automotive and Mobility, Aerospace, Space and Defense, and Software. Each online event focuses on real production deployments, qualification, and supply chain integration. Practitioners interested in contributing can complete the call for speakers form here.
To stay up to date with the latest 3D printing news, don’t forget to subscribe to the 3D Printing Industry newsletter or follow us on LinkedIn.
Explore the full Future of 3D Printing and Executive Survey series from 3D Printing Industry, featuring perspectives from CEOs, engineers, and industry leaders on the industrialization of additive manufacturing, 3D printing industry trends 2026, qualification, supply chains, and additive manufacturing industry analysis.
Featured image shows an operator monitors a live build using Euler Viewer. Photo via Euler.
