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KISSlicer

Freemium#24 of 27 in 3D Slicer Software3D Printing Software

KISSlicer: A capable free slicer with affordable upgrades, but a narrow STL-focused workflow. Ranked #24 of 27 in 3D Slicer Software by our editors (6.4/10); pricing: Free plan; best for budget FDM users wanting paid upgrades.

6.4/10Editor score
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KISSlicer6.4 Visit KISSlicer

At a glance

  • Editor score
    6.4 / 10
  • Pricing
    Free plan
  • Best for
    Budget FDM users wanting paid upgrades
  • Free plan
    Yes
  • Paid from
    $42 one-time
  • Support generation
    Automatic
  • Facts checked
    21 Sep 2026
KISSlicer screenshot

  • Where it wins

    • Free plan includes automatic supports and adaptive layer heights
    • Supports multi-material preparation, variable-density and gyroid infill
    • Runs on Windows, macOS, and Linux with toolpath visualization

  • Where it doesn't

    • STL is the listed model input format
    • Resin output is described as very preliminary SVG output
    • The site states there is generally no return policy

Our verdict on KISSlicer

KISSlicer is desktop 3D-printing slicing software for converting STL models into printer-ready G-code. It suits budget-conscious FDM users who want a free starting point and the option to add paid capabilities later. The workflow includes printer, material, style, and support profile wizards, automatic support generation with configurable triggers, adaptive or stepover-controlled layers, project files with active profiles, and toolpath visualization. Official downloads cover Windows, macOS, and Linux, with additional downloads listed for FreeBSD and Raspberry Pi.

The pricing structure is straightforward for buyers who prefer one-time licensing. The free version includes core slicing capabilities such as automatic supports, adaptive layers, infill controls, multi-material preparation, and visualization. The Pro license costs $42 one time and unlocks multi-material prints. The Premium Upgrade costs $40 one time and upgrades an existing Pro key while including Premium functionality. A new Premium license costs $82 one time, includes all Pro functionality, and adds Premium features. The site describes Premium pricing as early-adopter promotional pricing, so buyers should review the current terms before purchasing.

KISSlicer’s strength is focused desktop slicing rather than broad platform or ecosystem coverage. Its feature set reaches beyond basic slicing with multi-extruder preparation, variable-density and gyroid infill, configurable supports, and profile-based project files. However, STL is the listed input format, and the positioning emphasizes limited integrations. Resin output is described as very preliminary SVG output, which makes the software a weaker fit for users centered on resin workflows. Choose KISSlicer for affordable FDM slicing across major desktop operating systems; choose another tool if broader input support, deeper integrations, or more developed resin output is central to the workflow.

Your product? Our editors can test KISSlicer in depth and publish a review, labelled as paid · from $149/mo →

KISSlicer pricing

Plans Free planFreemium A usable free plan; paid tiers unlock the limits above. Prices checked 21 Sep 2026.
See plans on kisslicer.com

All 3 KISSlicer plans and prices →

KISSlicer fact sheet

Free planYes
Paid from$42 one-time
Support generationAutomatic
Resin slicingYes
Multi-material printingYes
Variable layer heightYes
Supported platformsWindows, macOS, Linux
Input file formatsSTL
Output file formatsG-code, SVG
DeploymentDesktop
PlatformsWindows, macOS, Linux
SupportEmail, Community
Built forSolo, Small business, Mid-market (editorial estimate)
PricingFree plan (source)
Websitekisslicer.com
Facts checked21 Sep 2026

Alternatives to KISSlicer

See all KISSlicer alternatives →

Also Ranked In

KISSlicer is ranked in 2 of our directories.

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Featured on iTechGuides

Featured on iTechGuides — KISSlicer 6.4/10

KISSlicer is listed in our 3D Slicer Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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