Slic3r is a popular open‑source slicer that converts 3D models into printer‑ready G‑code. The list below gathers 20 alternative slicers—both free and commercial— covering FDM, SLA, and multi‑material workflows, each with its own strengths (speed, advanced support generation, cloud integration, etc.).
Get targeted exposure with custom position pinning and highlighted placement.
Free, industry‑standard slicer with adaptive layer height, extensive material profiles, and tight integration with Ultimaker and many third‑party printers.
Open‑source slicer derived from Slic3r, optimized for Prusa printers but works with any FDM machine; features custom supports, variable layer height, and filament‑specific settings.
Commercial slicer renowned for its powerful support generation, fine‑tuned print settings, and fast slicing engine; supports a wide range of printers.
All‑in‑one 3D printing software that combines CAD, slicing, and printer control; free and open‑source with a user‑friendly interface.
Developed by Raise3D, this slicer offers intuitive UI, automatic support generation, and advanced print‑parameter libraries.
Stands for Keep It Simple Slicer; provides high‑quality prints, multi‑extruder support, and detailed control over infill and support structures.
A community‑driven fork of PrusaSlicer that adds extra features such as custom G‑code macros, advanced ironing, and experimental print‑time estimations.
Free slicer from CraftUnique; offers a clean UI, cloud sync, and fast slicing with support for multi‑material printers.
FlashForge’s proprietary slicer; simple to use, includes pre‑configured profiles for FlashForge printers, and supports basic support generation.
Zortrax’s dedicated slicer; optimized for Zortrax machines, provides automatic support, material‑specific settings, and a streamlined workflow.
Cloud‑based platform that includes a web slicer, printer management, and remote monitoring; ideal for education and makerspaces.
Free slicer from Bambu Lab; features AI‑assisted support, filament flow calibration, and seamless integration with Bambu printers.
Popular among resin users; offers powerful auto‑support, hollowing, and slicing for SLA/DLP printers.
Another leading resin slicer; provides detailed support editing, mesh repair, and multi‑plate layout.
Open‑source slicer focused on SLA/DLP printing; includes a built‑in 3D modeling environment and advanced support algorithms.
Free host software that bundles a slicer (based on CuraEngine), printer control, and firmware flashing tools.
Web‑based printer controller; when paired with plugins like “OctoPrint‑Slicer” it can slice directly on the Raspberry Pi.
Enterprise‑grade cloud platform offering a web slicer, fleet management, and analytics for professional printing operations.
Formlabs’ dedicated slicer for Form resin printers; provides automatic support, print‑time estimation, and material‑specific settings.
One of the earliest open‑source slicers; still maintained by the community and useful for users who need highly customizable G‑code scripts.