NVIDIA Isaac Sim Review: Features and Uses of the Open-Source Robotics Simulator
Updated: 7 days ago
NVIDIA Isaac Sim is free, open-source software for simulating robots and their sensors in physically based virtual scenes. This review covers its specifications, features and uses.
Quick Verdict
Isaac Sim has become the common simulator for robot AI. It is free and open source under Apache 2.0. Robots are imported from URDF, MJCF, Onshape or CAD into OpenUSD scenes with physics for rigid bodies, articulated joints and vehicles. Its two main jobs are testing a robot's software in the loop and generating synthetic training data: lighting, colour and position are randomized and images are exported with bounding boxes and segmentation in COCO or KITTI formats. A bridge connects it to ROS and ROS 2, and it scales over several GPUs. It needs a capable NVIDIA GPU; system requirements are in the installation documents, not on the page.
NVIDIA Isaac Sim at a Glance
Licence: Free and open source, Apache 2.0
Foundation: NVIDIA Omniverse libraries; OpenUSD
Import: URDF, MJCF, Onshape, CAD converter
Physics: Rigid bodies, articulations, vehicles, SDF colliders
Synthetic data: Randomization; RGB, bounding box and segmentation annotators
Price: free, open source
NVIDIA Isaac Sim Features
The table below lists what the manufacturer states.
Specification | NVIDIA Isaac Sim |
Manufacturer | NVIDIA |
Licence | Free and open source, Apache 2.0 |
Foundation | NVIDIA Omniverse libraries; OpenUSD |
Import | URDF, MJCF, Onshape, CAD converter |
Physics | Rigid bodies, articulations, vehicles, SDF colliders |
Synthetic data | Randomization; RGB, bounding box and segmentation annotators |
Export formats | COCO and KITTI |
ROS | ROS and ROS 2 bridge |
Testing | Software-in-the-loop and hardware-in-the-loop |
Availability | GitHub, NGC container, AWS Marketplace |
System requirements are not listed on the page.
Design and Build Quality
The simulator is a reference framework: developers can use it as delivered or build their own OpenUSD-based simulator from its parts.
Software and Integration
ROS Bridge
Extensions connect simulated robots and sensors to ROS and ROS 2.
Physics Engines
The page also references Newton, an open-source physics engine.
NVIDIA Isaac Sim Applications and Use Cases
Training Perception Models
Synthetic images with automatic labels.
Testing Robot Software
Running the real stack against a simulated world.
Robot Learning
Generating data and environments for policy training.
NVIDIA Isaac Sim Price and Value
Isaac Sim is free and open source under the Apache 2.0 licence; cloud use incurs the provider's compute charges.
For the company behind the product, read the NVIDIA Robotics Company Profile: Isaac Platform, Structure, Financials, Leadership and Stock.
Pros and Cons
Pros
Free and open source
Photoreal sensor simulation
Automatic labelled data
ROS 2 support
Multi-GPU scaling
Cons
Needs a powerful NVIDIA GPU
Steep learning curve
Redistribution of Omniverse Kit needs a separate licence
Who Should Buy the NVIDIA Isaac Sim?
It fits robotics developers and researchers who train and test AI for robots.
NVIDIA Isaac Sim FAQ
How much does the NVIDIA Isaac Sim cost?
Isaac Sim is free and open source under the Apache 2.0 licence; cloud use incurs the provider's compute charges.
What is NVIDIA Isaac Sim?
An open-source framework for robotics simulation, testing and synthetic data generation.
Is Isaac Sim free?
Yes, under the Apache 2.0 licence.
Does Isaac Sim support ROS 2?
Yes, through bridge extensions for ROS and ROS 2.
What robot formats can Isaac Sim import?
URDF, MJCF, Onshape and CAD through a converter.
Can Isaac Sim generate training data?
Yes, with randomization and annotators, exported in COCO or KITTI formats.
What is Isaac Sim built on?
NVIDIA Omniverse libraries and OpenUSD.
Where can I get Isaac Sim?
From GitHub, as an NGC container or on the AWS Marketplace.
Specifications are based on manufacturer information and may change.
