Lychee Slicer vs OrcaSlicer

Lychee Slicer prepares 3D models for resin and filament printing, with tools for supports, hollowing, print-setting previews and printer configuration. It runs on Windows, macOS and Linux, and Lychee says it supports more than 750 printers. Resin features include custom support structures, exposure settings, grid supports, AR preview and one-click hollowing. Filament tools include printer profiles, support management, seam optimization and real-time preview. Compatible filament printers can communicate through Klipper or OctoPrint; Wi-Fi sending depends on the printer model. Lychee Library is integrated into the slicer and offers pre-supported models from creators. The product describes cloud synchronization of settings across machines and automatic local backups. Lite is free, with limited Multi-Plate and ads on export. Plus is billed at €99.90 + local taxes yearly (€8.33 / month). Plus & Library is billed at €199.90 + local taxes yearly (€16.66 / month), and includes unlimited model downloads. Library models cannot be used commercially without creator approval.

OrcaSlicer is a free, open-source slicer for FDM 3D printers on Windows, macOS, and Linux. It controls speed, layer height, pressure, and temperature independently for walls, infill, supports, and other features. Calibration tools cover flow rate, pressure advance, temperature towers, retraction, tolerance, and maximum volumetric speed. Tuned presets are provided for hundreds of printers, including Bambu Lab, Prusa, Creality, and Voron. Jobs can be sent to and monitored on Klipper, PrusaLink, or OctoPrint printers. The slicer supports automatic supports, model repair, multi-material printing, and variable layer height, but not resin or cloud slicing. Input formats include STL, 3MF, STEP, DRC, OBJ, AMF, SVG, and ZIP; outputs include G-code, Gcode.3MF, OBJ, STL, DRC, and generic 3MF. The desktop app works offline without accounts or telemetry, keeping project data on the device. It is licensed under AGPL-3.0.