The Best AI Synthetic Data Generators in 2026
We researched AI synthetic data generators through official websites, including pricing pages, plan tables and product documentation. Products are ranked on their core job, value for money and verified features for producing privacy-safe datasets for analytics, software testing and machine-learning development.
Our top picks
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Top ranked
MOSTLY AI#1 of 259.3/10A broad synthetic-data platform for tabular, relational, and simulated datasets.
Free plan
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Runner-up
Tonic Fabricate#2 of 259.2/10Affordable synthetic data generation with relational consistency, validation, and API mocking.
Free plan
-
Top-ranked free plan
Synthesized#3 of 259.1/10A free, schema-preserving platform for synthetic data, masking, and database subsetting.
Free plan
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
The full ranking 25 tools, best first
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Best forBroad tabular and relational synthesis
A broad synthetic-data platform for tabular, relational, and simulated datasets.
- Relational data
9.3/10★★★★★Visit MOSTLY AI -
Best forAffordable relational test-data generation
Affordable synthetic data generation with relational consistency, validation, and API mocking.
- Relational data
9.2/10★★★★★Try Tonic Fabricate -
Best forDatabase teams needing free synthetic data
A free, schema-preserving platform for synthetic data, masking, and database subsetting.
- Relational data
9.1/10★★★★★Visit Synthesized -
Best forEnterprise tabular and time-series synthesis
A broad synthetic data platform for enterprise tabular, relational, and time-series workflows.
9.0/10★★★★☆Visit Syntho -
Best forFree multi-table synthetic data workflows
A capable free option for multi-table synthetic data workflows, with self-hosted deployment.
- Relational data
8.9/10★★★★☆Visit site -
Best forLow-cost relational mock data and APIs
A low-cost choice for relational mock data, exports, and API mocking.
8.8/10★★★★☆Visit FakerForge -
Best forPrivacy-focused enterprise data synthesis
A privacy-focused platform for enterprise teams synthesizing varied, controlled datasets.
8.7/10★★★★☆Visit Betterdata -
Best forOpen-source tabular data with privacy evaluation
Open-source tabular synthetic data with privacy and utility evaluation.
8.6/10★★★★☆Visit Synth Studio -
Best forResearchers needing broad open-source generators
A broad, research-focused toolkit for self-hosted synthetic-data workflows.
8.5/10★★★★☆Visit SynthCity -
Best forMature enterprise test-data pipelines
A mature choice for deterministic, relational test-data automation at enterprise scale.
- Relational data
8.4/10★★★★☆Visit GenRocket -
Best forLarge regulated test-data environments
A broad synthetic-data toolkit for complex, governed test environments.
8.3/10★★★★☆Visit IRI RowGen -
Best forFree visual and 3D synthetic datasets
A free, programmable choice for visual, 3D, and sensor-focused synthetic data.
8.2/10★★★★☆Try NVIDIA Omniverse -
Best forMultisensor autonomous-system simulation
A cloud platform for sensor-realistic synthetic datasets and autonomous-system simulation.
8.1/10★★★★☆Visit Anyverse -
Best forAutonomy-stack scenario and sensor testing
A specialized simulation platform for testing autonomous systems across camera, lidar, and radar.
8.0/10★★★★☆Try Parallel Domain -
Best forComputer-vision teams needing many sensor formats
A configurable synthetic-data platform for teams working across many sensor modalities.
7.9/10★★★★☆Visit Rendered.ai -
Best forTeams needing multimodal synthetic datasets
A multimodal synthetic data platform for governed AI, testing, analytics, and research workflows.
- Unstructured data
7.8/10★★★★☆Visit Syntellix -
Best forSelf-hosted multimodal enterprise generation
A self-hosted, multimodal synthetic-data platform for regulated AI workflows.
7.7/10★★★★☆Visit Tabularis.AI -
Best forLow-cost multimodal dataset creation
A low-cost, multimodal dataset generator with free monthly credits and one-time paid tiers.
7.6/10★★★★☆Visit SynthEngyne -
Best forSalesforce-focused test-data generation
A focused Salesforce testing platform with strong relational and negative-data generation.
- Relational data
7.5/10★★★★☆Visit SimpleTest -
Best forFree local tabular privacy synthesis
A free local choice for privacy-aware synthetic tabular data generation.
7.4/10★★★★☆Try DataSynthesizer -
Best forOpen-source relational research generation
A free, self-hosted framework for generating structured synthetic datasets.
- Privacy-risk metrics
- Relational data
7.3/10★★★★☆Visit REaLTabFormer -
Best forOpen-source synthetic relational databases
A focused self-hosted framework for generating complex synthetic relational databases.
- Time-series data
- Relational data
7.2/10★★★★☆Visit PluRel -
Best forPrivacy-preserving categorical data research
A focused, self-hosted choice for differentially private categorical data research.
- Privacy-risk metrics
7.1/10★★★★☆Visit twinify -
Best forFree tabular data with built-in scoring
A free tabular generator with useful scoring, batch runs, exports, and API access.
- Privacy-risk metrics
7.0/10★★★★☆Visit site -
Best forPrivate-cloud synthetic image datasets
A focused image-synthesis platform for private-cloud computer-vision datasets.
6.8/10★★★☆☆Visit Synthetic AI
No tools match those filters.
Compare at a glance
| # | Tool | Free plan | Paid from | Deployment | Score |
|---|---|---|---|---|---|
| 1 | MOSTLY AI | Yes | Hybrid | 9.3 | |
| 2 | Tonic Fabricate | Yes | $29/mo | Hybrid | 9.2 |
| 3 | Synthesized | Yes | Hybrid | 9.1 | |
| 4 | Syntho | Self_hosted | 9.0 | ||
| 5 | Synthetic Data Vault | Yes | 8.9 | ||
| 6 | FakerForge | Yes | $10/mo | 8.8 | |
| 7 | Betterdata | Hybrid | 8.7 | ||
| 8 | Synth Studio | Yes | Free | Hybrid | 8.6 |
| 9 | SynthCity | Yes | Free | Self_hosted | 8.5 |
| 10 | GenRocket | No | Hybrid | 8.4 | |
| 11 | IRI RowGen | No | 8.3 | ||
| 12 | NVIDIA Omniverse | Yes | Free | Hybrid | 8.2 |
| 13 | Anyverse | Cloud | 8.1 | ||
| 14 | Parallel Domain | 8.0 | |||
| 15 | Rendered.ai | No | Hybrid | 7.9 | |
| 16 | Syntellix | 7.8 | |||
| 17 | Tabularis.AI | Hybrid | 7.7 | ||
| 18 | SynthEngyne | Yes | ₹1,500 one-time | 7.6 | |
| 19 | SimpleTest | Yes | On_prem | 7.5 | |
| 20 | DataSynthesizer | Free | Self_hosted | 7.4 | |
| 21 | REaLTabFormer | Free | Self_hosted | 7.3 | |
| 22 | PluRel | Free | 7.2 | ||
| 23 | twinify | Free | Self_hosted | 7.1 | |
| 24 | Synthehol Dataset | Yes | Free | 7.0 | |
| 25 | Synthetic AI Data | Yes | Hybrid | 6.8 |
Head-to-head All 22 comparisons →
- MOSTLY AI vs Syntho
- MOSTLY AI vs FakerForge
- MOSTLY AI vs Betterdata
- MOSTLY AI vs Synth Studio
- Tonic Fabricate vs Syntho
- Tonic Fabricate vs FakerForge
- Tonic Fabricate vs Betterdata
- Tonic Fabricate vs Synth Studio
- Synthesized vs Syntho
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How we rank AI synthetic data generators
Every tool on this page was researched by iTechGuides Editors from its official website — pricing pages, plan tables and product documentation. We rank on how well each one does this category's core job, what the free or entry plan includes, and where it falls short. Where we have enough verified facts, the score out of 10 is a rubric — job fit, value and how much we could verify — shown with its breakdown on every tool's page; a tool we have not verified enough to score yet shows its rank without a number. Scores are re-checked when a product changes its plans. Read the full editorial policy, or submit a tool we missed.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update