Dev tools · alternatives · 2026
24 alternatives to OpenSplat
Free and open source 3D gaussian splatting in C++
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. OpenSplat launched in 2024; newer entries below may have overtaken it.
- 1RT
2023 · antimatter15.com · its alternatives →
- 2SO
2024 · playcanvas.com · its alternatives →
- 3
I'm the co-creator and maintainer of https://aframe.io/ and long time Web 3D graphics dev. Super excited about new techniques to author / render / represent 3D. Spark is a an open source library to easily integrate Gaussian splats in your THREE.js scene I worked with some friends and I hope you find useful. Looking forward to hearing what features / rendering techniques you would love to see next.
2025 · sparkjs.dev · its alternatives →
- 4TA
Apr 2026 · blog.playcanvas.com · its alternatives →
- 5RT
LiveSplat is a system for turning RGBD camera streams into Gaussian splat scenes in real-time. The system works by passing all the RGBD frames into a feed forward neural net that outputs the current scene as Gaussian splats. These splats are then rendered in real-time. I've put together a demo video at the link above.
2025 · its alternatives →
- 6
[deleted]
2024 · github.com · its alternatives →
- 7MA
Hello HN! I’m excited to share this open-source community mashup showing the power and possibility of combining 3D Gaussian splat scans with traditional mesh-based 3D tiles maps in the browser. As you've probably seen on HN a bunch lately, Gaussian splats are a new method to allow custom 3D scans of scenes and objects [1] and Google Maps 3D Tiles API are the same 3D buildings and street views your familiar with in Google Earth or Google Maps, and recently they’ve been made available for inclusion in web apps. Combining splats + 3d map mixes highly detailed real-world custom micro-scans with…
2024 · maps-and-splats.glitch.me · its alternatives →
- 8
RadianceKit▲95Turn photos into 3D Gaussian Splats on your Mac
Jun 2026 · radiancekit.de · its alternatives →
- 9
The Setup: https://i.imgur.com/o0hgybh.jpeg https://i.imgur.com/mcNiomp.jpeg https://i.imgur.com/vIjw6pc.jpeg https://i.imgur.com/nzOwmSC.jpeg
May 2026 · superspl.at · its alternatives →
- 10
Splattr▲7Create 3D Gaussian Splats in the cloud, no setup required
2025 · splattr.app · its alternatives →
- 11
- 12
Hello HN! I'm the author of this toy project that combines the idea of live-edit Shadertoy scenes with the popular gaussian splatting, aka 3DGS. You can write a GLSL function that defines the splats and see it rendered in real-time. Your GLSL code isn't stored anywhere, but you can share it via URL. P.S. I'm not a Spark developer. I'm just using their rendering engine.
2025 · github.com · its alternatives →
- 13
It's been closed source for a long time while I worked on it on and off as a hobby research project, but yesterday the repo was made public for the first time under the MPL 2.0 license. A feature reel showing its capabilities can be found here: https://ktstephano.github.io/rendering/stratusgfx/feature_re... A technical breakdown of a single frame can be found here: https://ktstephano.github.io/rendering/stratusgfx/frame_anal... It's still in a very beta state (bugs and instability expected), but I felt like it was a good time to make it…
2023 · github.com · its alternatives →
- 14
I just launched SplatGallery, a platform where you can share and discover the best 3D models created with Gaussian Splatting. It's a super early stage and new models are coming it fairly often. Would love to get feedback from the HN community on how to improve it!
2024 · splatgallery.com · its alternatives →
- 15
C++ Path Tracer from scratch with zero third-party libraries. - themartiano/luz
Jun 2026 · github.com · its alternatives →
- 16
Last week I wanted to quickly view some Gaussian splats which I had trained on a remote server that didn’t have any open ports or a display device. So I ended up downloading everything locally just to inspect the results This weekend I put together a terminal-based Gaussian splats viewer that renders directly in the terminal. It works over SSH and currently runs on CPU only and written in rust with claude code. I’ve found it to be pretty useful for quickly checking which .ply files correspond to which scenes and getting a rough sense of their quality. Along the way, I also wrote a small…
Apr 2026 · github.com · its alternatives →
- 17
This is a GPU "software" raytracer (i.e. using manual ray-scene intersections and not RTX) written using the WebGPU API that renders glTF scenes. It supports many materials, textures, material & normal mapping, and heavily relies on multiple importance sampling to speed up convergence.
2024 · github.com · its alternatives →
- 18
Browse and share GPU-made GIFs. Explore GLSL shader experiments, search by topic, and open any piece in the editor to learn or remix.
2018 · shadergif.com · its alternatives →
- 19
- 20
Hi HN! I've built TRELLIS 3D AI, an open tool that converts 2D images into professional 3D assets using advanced AI technology. Technical Implementation: - Browser-based processing using WebGL - Structured LATents (SLAT) for maintaining geometric integrity - Dual output pipeline generating both GLB and 3D Gaussian formats - Real-time 3D preview using Three.js - Optimized for processing images up to 2048x2048px The core technology combines: - Pretrained vision encoders for image understanding - Rectified flow transformers for 3D geometry generation - Advanced neural networks for texture…
2024 · trellis3d.co · its alternatives →
- 21
I was playing with this for a few weeks over the holiday break. This is one of the GS3D sample scenes running on PCVR at about 65 FPS. I'm sorting on the CPU at the moment, so there are some hitches, but it works! I may publish this as a Unity asset. (I'd love to get it working on Vision Pro, but we'll see.)
2024 · youtube.com · its alternatives →
- 22
I ported Microsoft's TRELLIS.2 (4B parameter image-to-3D model) to run on Apple Silicon via PyTorch MPS. The original requires CUDA with flash_attn, nvdiffrast, and custom sparse convolution kernels: none of which work on Mac. I replaced the CUDA-specific ops with pure-PyTorch alternatives: a gather-scatter sparse 3D convolution, SDPA attention for sparse transformers, and a Python-based mesh extraction replacing CUDA hashmap operations. Total changes are a few hundred lines across 9 files. Generates ~400K vertex meshes from single photos in about 3.5 minutes on M4 Pro (24GB). Not as fast as…
Apr 2026 · github.com · its alternatives →
- 23CA
I'm currently developing Chili3D, an open-source, browser-based 3D CAD application. By compiling OpenCascade to WebAssembly and integrating Three.js, Chili3D delivers near-native performance for powerful online modeling, editing, and rendering—all without local installation. Access it here: https://github.com/xiangechen/chili3d Features: Modeling Tools: Create basic shapes (boxes, cylinders, cones, etc.), 2D sketches (lines, arcs, circles, etc.), and perform advanced operations (boolean operations, extrusion, revolution, etc.). Snapping and Tracking: Precisely snap to…
2025 · its alternatives →
- 24
3D using bitblting in Windows. Contribute to lowlevel86/3D-Game-Programming development by creating an account on GitHub.
2017 · github.com · its alternatives →
Also compare
- Real-Time 3D Gaussian Splatting in WebGL alternatives
- SuperSplat – open-source 3D Gaussian Splat Editor alternatives
- Spark, An advanced 3D Gaussian Splatting renderer for Three.js alternatives
- Turning a Gaussian Splat into a videogame alternatives
- Real-Time Gaussian Splatting alternatives
- 3DGS.cpp – performant, cross platform Gaussian Splatting with Vulkan alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →