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Manufacturing · head to head

Markforged Eiger vs PrusaSlicer

Markforged Eiger logo

Markforged Eiger

Manufacturing

Free cloud print preparation for Markforged printers, because the money is in the hardware

From
Free
Rated
-
Full reviewWebsite
PrusaSlicer logo

PrusaSlicer

CAD

Feature-rich 3D printing slicer

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Markforged Eiger eiger only drives Markforged printers, so the free software is a lock-in mechanism; the moment you want a different machine none of your prepared parts or fibre routing transfers.; PrusaSlicer limited to slicing workflow only; no interactive 3D design capabilities
  • They diverge on capability: Markforged Eiger covers Continuous fibre routing, PrusaSlicer covers Automatic supports.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Markforged Eiger and PrusaSlicer actually diverge.

Attributes where Markforged Eiger and PrusaSlicer differ
AttributeMarkforged EigerPrusaSlicer
Pricing modelquotefree
PlatformsWeb, Windows, macOS, CloudWindows, macOS, Linux
CategoryManufacturingCAD
FoundedUnknown2012

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Markforged Eiger

  • Continuous fibre routing
  • Cloud slicing
  • Fleet management
  • Part library
  • Material tracking
  • Simulation add-on
  • Eiger Offline
  • Access control

Only in PrusaSlicer

  • Automatic supports
  • Multi-material
  • Variable layer height
  • Custom G-code
  • Paint-on supports
  • Ironing
  • Prusa printers
  • Most FDM printers

What people use each for

The jobs each tool is most often brought in to do.

Markforged Eiger

  • A tooling department printing carbon fibre reinforced jigs and fixtures strong enough to replace machined aluminiumnot PrusaSlicer
  • A defence contractor needing air-gapped print preparation because part geometry cannot leave the site, which requires Eiger Offlinenot PrusaSlicer
  • A manufacturing engineering group running several Markforged machines across sites from one queue and part librarynot PrusaSlicer
  • A maintenance team producing reinforced replacement brackets on demand rather than holding sparesnot PrusaSlicer

PrusaSlicer

  • Preparation of STL models for 3D printingnot Markforged Eiger
  • Multi-material printing preparationnot Markforged Eiger
  • G-code generation and customisation via macrosnot Markforged Eiger

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Markforged Eiger

  • Eiger only drives Markforged printers, so the free software is a lock-in mechanism; the moment you want a different machine none of your prepared parts or fibre routing transfers.
  • The standard product is cloud only, meaning part geometry is uploaded to a vendor service, which is unacceptable for many defence and aerospace sites and forces them onto the paid Eiger Offline subscription per machine.
  • Eiger Offline pricing is not published and is charged per machine, so a shop with several printers pays repeatedly for software the cloud users receive free.
  • Slicing control is deliberately simplified compared with open slicers, and experienced operators regularly find they cannot reach a parameter they want without contacting support.
  • Markforged has been through financial pressure and consolidation in the additive sector, and because the software is inseparable from the hardware, a change of ownership or product line pruning would strand the fleet rather than just the tool.

PrusaSlicer

  • Limited to slicing workflow only; no interactive 3D design capabilities
  • Designed for RepRap-based printers; compatibility with other printer architectures varies

Pricing, plan by plan

Markforged Eiger

Free
  • Eiger Basic$undefined/year
    • Included at no additional charge with every Markforged printer
    • No per-user or per-printer software fee
    • Cloud print preparation and fleet management
  • Eiger Offline$undefined/year
    • Air-gapped installation for secure and classified environments
    • Sold per machine on subscription
    • Quarterly feature and material updates

PrusaSlicer

Free

No published plan breakdown. See the PrusaSlicer review.

Which should you pick?

Choose Markforged Eiger if

  • You need continuous fibre routing.
  • You want to start without paying.
  • You work on Web, Windows, macOS, Cloud.
  • You also want cloud slicing.
Markforged Eiger review

Choose PrusaSlicer if

  • You need automatic supports.
  • You want to start without paying.
  • You work on Windows, macOS, Linux.
  • You also want multi-material.
PrusaSlicer review

Questions people ask

Is Markforged Eiger or PrusaSlicer better?
Neither clearly leads. Markforged Eiger starts at Free and PrusaSlicer at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Markforged Eiger or PrusaSlicer?
Markforged Eiger starts at Free and PrusaSlicer at Free.
Does Markforged Eiger or PrusaSlicer run on more platforms?
Markforged Eiger runs on Web, Windows, macOS, Cloud. PrusaSlicer runs on Windows, macOS, Linux.
Can I use Markforged Eiger for free?
Both have a free tier, so you can try either at no cost before committing.
What is Markforged Eiger best used for?
Markforged Eiger is most often used for a tooling department printing carbon fibre reinforced jigs and fixtures strong enough to replace machined aluminium, a defence contractor needing air-gapped print preparation because part geometry cannot leave the site, which requires eiger offline, a manufacturing engineering group running several markforged machines across sites from one queue and part library, a maintenance team producing reinforced replacement brackets on demand rather than holding spares. Of those, a tooling department printing carbon fibre reinforced jigs and fixtures strong enough to replace machined aluminium and a defence contractor needing air-gapped print preparation because part geometry cannot leave the site, which requires eiger offline are not what PrusaSlicer is typically brought in for.
What can Markforged Eiger do that PrusaSlicer cannot?
Markforged Eiger covers Continuous fibre routing, Cloud slicing, Fleet management, Part library. PrusaSlicer covers Automatic supports, Multi-material, Variable layer height, Custom G-code.

Answered from the vendors’ own pages

Markforged Eiger: How much does Eiger cost?

Nothing, if you own a Markforged printer. It is included with every machine with no per-user or per-printer software fee. Eiger Offline is a separate paid per-machine subscription.

PrusaSlicer: How much does PrusaSlicer cost?

PrusaSlicer is completely free and open-source software developed by Prusa Research.

Source
Markforged Eiger: Can I use Eiger with a non-Markforged printer?

No. It only prepares and drives Markforged machines.

Markforged Eiger: Is my part geometry uploaded to the cloud?

Yes, in the standard product. Sites that cannot allow that need Eiger Offline.

Markforged Eiger: Where is the actual cost then?

In the printers and the proprietary filament and continuous fibre spools, which are the recurring spend.

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