Pricing
Free to start.
A cent a credit after that.
The first 20,000 rows of every dataset are free, and so is schema design. Past that, generation is metered in credits, and a credit is 1 cent.
What is free
Schema design: AI from a description, the visual editor, SQL import, templates. No cap on schemas.
The first 20,000 rows of every dataset: In the web app and over MCP approved in a browser. Per dataset, not per month.
Every field type, every export format, foreign keys, cardinality ratios: Nothing is feature-gated.
The sample pack: Four related tables as SQL and CSV, no account needed.
What is metered
← Swipe to read →
| Path | Free | Then |
|---|---|---|
| Web app, and MCP approved in a browser | First 20,000 rows of each dataset | 2 credits plus 1 per 25,000 rows; 41 credits for a full 1,000,000-row dataset |
| Personal API keys, and agents holding one | Your first key includes 250 credits | Metered from the first row at the same rate, so a full 1,000,000-row dataset is 42 credits, one credit more than a web session, because the free rows do not apply. On an API key, AI schema design costs 8 credits per table, up to 80. |
| Failed or cancelled jobs | Nothing | Nothing |
For scale: 200,000 rows in a web session is 9 credits.
Buying credits
$5
500 credits
$50
6,000 credits
$100
13,000 credits
Bigger packs add bonus credits, so $50 buys 6,000 and $100 buys 13,000. The credit itself is always 1 cent, so the rate above holds on every pack.
Limits
1,000,000 rows per table.
1 GB per download. Wide, text-heavy tables reach it first: 25 columns with free text is about 2.9 million rows.
5 GB of stored datasets per account.
Generated datasets are kept for about 24 hours so you can download them, then deleted.
A typical 15-column table generates 200,000 rows in about 12 seconds.
Per-account rate limits on AI calls and generation exist to keep the shared service up. If you hit one and need more, write to us.
How SynthForge compares
A practical look at how SynthForge stacks up against the tools developers actually consider.
Two red marks in our column are deliberate. SynthForge does not de-identify production data, and it does not carry a SOC 2 or HIPAA attestation. If you need either, Tonic is the better call, and the comparison pages say so.
← Swipe to compare →
| Capability | Faker (lib) | Mockaroo | ChatGPT prompt | SynthForge IO | Tonic.ai |
|---|---|---|---|---|---|
| Free for individual devs | 1k rows/file, free | $10/mo credit | |||
| Visual schema design | Spreadsheet-style | ||||
| Multi-table FK integrity | Manual | Limited | Unreliable | ||
| Multi-database export | Text only | ||||
| Statistical distributions | Limited | ||||
| Natural-language schema | Recent, limited | ||||
| Runs without signup | Signup for >1k rows | Free account | |||
| API access | N/A (it IS code) | Paid | N/A | ||
| Up to 1M rows per request | Manual loops | Capped on free | Unreliable | ||
| Production data masking | |||||
| SOC2 / HIPAA compliance | N/A | ||||
| Best for | Devs writing scripts | Quick CSV/JSON dumps | One-off small datasets | Relational test data, free, at scale | Enterprises with prod data they can't expose |
Comparisons reflect each tool's free or entry tier. Pricing and features evolve; check vendor sites for current details.
Questions
Is there a catch?
No catch, but there is a shape to it. Generation is free for the first rows of every dataset and metered in credits past that, which the limits section above puts numbers on. The caps that are not about price: 1 GB on the generated download, and 5 GB of stored datasets per account. A typical 15-column table generates 200,000 rows in about 12 seconds. If you need more, tell us; when there is enough demand to support it, we will lift the ceilings.
What happens when a dataset outgrows the free rows?
The job quotes its cost before it runs and holds that many credits. If you have them, it runs. If not, it stops before generating anything and tells you the number.
Where does my data go?
Generated datasets are deleted after about 24 hours. The details are on the contact page.
How does SynthForge compare to paid synthetic data tools?
Mockaroo's free tier caps at 1,000 rows per file and 200 API requests per day. Tonic.ai Structural is contract-sales only; Tonic Fabricate Free has $10 of monthly credits. NVIDIA NeMo (formerly Gretel) ships with NVIDIA AI Enterprise. SynthForge gives you 20,000 rows per dataset free in well under a minute, up to 1,000,000 rows per table if you need more, 7 SQL dialect exports, 152 field types, AI schema design, and multi-table foreign-key integrity. See the comparison pages for detail.
Generate a dataset before you pay for one
No credit card. Buy credits only when a dataset outgrows the free rows.