No. 19 of 30 ·Synthetic Data Generation Software

NeMo Data Designer

Web · Linux · Self-hosted · API

Freedom report

No signalScore 5.2

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely2 of 6 device platforms
DocumentedThinly documented

NeMo Data Designer is ranked #19 of 30 in synthetic data generation software on Freedom251. It runs on API, Linux, Self-hosted, Web. A free trial is offered.

NeMo Data Designer plans and pricing

All plans

NeMo Data Designer free trial Free API key required · up to 100 records per job build.nvidia.com · 5 Oct 2026

Compared on synthetic data generation software

Data modalities: tabular, text, code, structured JSON, images, embeddings
Deployment options: hybrid
API access: Yes
Output formats: CSV, JSON, JSONL, Parquet

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The record

Purpose: NeMo Data Designer is a compound AI system for synthetic data generation.
Workflow: Users configure columns and models, preview samples, then create a dataset.
Generation: The framework handles batching, parallelism, validation, statistical diversity, field correlations, and reproducible workflows.
Deployment: It is available as an open-source Python library and as a NeMo Microservice with REST API preview and create methods.
Integrations: Documented LLM endpoints include NVIDIA API Catalog, OpenAI, Azure OpenAI, Anthropic, vLLM, TGI, TensorRT-LLM, and OpenAI-compatible servers.
NeMo integrations: The microservice integrates with NeMo Inference Microservices, NeMo Customizer, and NeMo Evaluator.
Security: The SECURE Jinja renderer is the default and adds a hardened sandbox, JSON-compatible context sanitization, template restrictions, and output guards.
Hosting requirement: Data Designer does not host models; users must provide LLM endpoints and provision inference capacity.
Hosted trial limit: The hosted product page says jobs default to 10 records and allow up to 100 records per job.
Output: The hosted walkthrough shows preview results available as a Pandas DataFrame.
Audience: The open-source library is positioned for developers with LLM access who want flexibility and customization, while the microservice is for teams using NeMo Microservices.
Founded: 1993
Headquarters: Santa Clara, California, USA

Where it ranks on Freedom251

Best Synthetic Data Generation Software in 2026#19 of 30

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Sources

build.nvidia.com/nemo/data-designer· checked 5 Oct 2026
docs.nvidia.com/nemo/datadesigner/getting-started/welco· checked 5 Oct 2026
docs.nvidia.com/nemo/datadesigner/concepts/deployment-o· checked 5 Oct 2026
docs.nvidia.com/nemo/datadesigner/concepts/security· checked 5 Oct 2026
docs.nvidia.com/nemo/datadesigner/latest/concepts/archi· checked 5 Oct 2026