TypeGenInfer TypeScript types from sample data.
Paste JSON or CSV and TypeGen infers clean TypeScript interfaces (or a Zod schema), explains its assumptions, and flags ambiguous fields you should double-check.
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Key takeaways
- Sample data to TS types
- Interfaces / type aliases / Zod
- Explain inferred assumptions
TypeGen — decision-support themes
Honest capability chips — not fabricated customer counts or uptime stats.
What TypeGen does
TypeGen — Infer TypeScript types from sample data. Use it as decision-support: demo mode works without a live key; live runs require configuration. No fabricated metrics, and no claims for SSO/CSV/Slack unless that surface is actually shipped.
What this is NOT
- Not a law firm, GRC platform, or certification body.
- Not a guarantee that outputs will satisfy every regulator or auditor.
- Not a substitute for qualified human review on high-stakes decisions.
Controller / Processor — When packs mention privacy roles, we use GDPR Art.4 labels (decision-support only).
Where teams get stuck without TypeGen
Sample data to TS types
Without reliable sample data to ts types, work stays inconsistent and gaps show up after ship.
Interfaces / type aliases / Zod
Without reliable interfaces / type aliases / zod, work stays inconsistent and gaps show up after ship.
Explain inferred assumptions
Without reliable explain inferred assumptions, work stays inconsistent and gaps show up after ship.
Flag ambiguous fields
Without reliable flag ambiguous fields, work stays inconsistent and gaps show up after ship.
Describe. Review. Ship with TypeGen
Infer TypeScript types from sample data.
Sample data to TS types
Sample data to TS types — deterministic and exportable. Decision-support, not a certificate.
Interfaces / type aliases / Zod
Interfaces / type aliases / Zod — deterministic and exportable. Decision-support, not a certificate.
Explain inferred assumptions
Explain inferred assumptions — deterministic and exportable. Decision-support, not a certificate.
Flag ambiguous fields
Flag ambiguous fields — deterministic and exportable. Decision-support, not a certificate.
Everything you need to ship faster
Sample data to TS types
Use TypeGen to sample data to ts types.
Interfaces / type aliases / Zod
Use TypeGen to interfaces / type aliases / zod.
Explain inferred assumptions
Use TypeGen to explain inferred assumptions.
Flag ambiguous fields
Use TypeGen to flag ambiguous fields.
From idea to result in 3 steps
Input
Describe your goal in plain language.
Process
TypeGen structures the work and runs the workflow.
Ship
Copy, export, or upgrade for 40 runs/day · 300/mo.
Where teams use TypeGen
Infer TypeScript types from sample data.
Sample data to TS types
Use TypeGen to sample data to ts types.
Try it on this page
or generate below.
Saved history
Trusted by operators who ship
We don't publish invented quotes. When real users agree to be featured, their stories go here. Until then, see the use cases and blog for how teams apply TypeGen.
Run the studio on this page — no signup required to see output.
Free tier + Pro. Cancel anytime. See the Pricing section above.
Designed for people who'd rather not live in a spreadsheet.
Honest boundaries
TypeGen — Infer TypeScript types from sample data. Use it as decision-support: demo mode works without a live key; live runs require configuration. No fabricated metrics, and no claims for SSO/CSV/Slack unless that surface is actually shipped. Decision-support only — not a certificate, legal opinion, or conformity assessment.
Simple plans that scale
All paid plans include
- Sample data to TS types
- Interfaces / type aliases / Zod
- Explain inferred assumptions
- Email support on paid plans — no hidden add-ons for core studio use
- Limited daily AI runs (3/day · 15/mo)
- Studio demo (no extra LLM fee)
- AI included: 300 gens/mo · fair use (gpt-4o-mini)
- No separate AI subscription required
- Priority support · Yearly $190
Feature comparison
What each plan includes — quotas reflect the enforced fair-use limits.
| Dimension | Free | Pro | Enterprise |
|---|---|---|---|
| Usage | |||
| AI runs | 3/day · 15/mo | 40/day · 300/mo | 200/day · 3,000/mo |
| Report export | Watermarked | Clean export | Clean export |
| Audit log | Not included | ✓ Included | ✓ Included |
| Product | |||
| Sample data to TS types | ✓ Included | ✓ Included | ✓ Included |
| Interfaces / type aliases / Zod | ✓ Included | ✓ Included | ✓ Included |
| Explain inferred assumptions | ✓ Included | ✓ Included | ✓ Included |
| Flag ambiguous fields | ✓ Included | ✓ Included | ✓ Included |
| BYOK (your LLM key) | Not included | Not included | ✓ |
| SSO | Not included | Not included | Roadmap |
| Support & compliance | |||
| Support | Community | Priority | Custom SLA |
Already paid? Unlock Pro with your license
Licenses are issued manually after your payment is confirmed: we generate one per paid order and send it to the purchase email, typically within a few hours. Enter it below to activate Pro on this device — no account needed. Nothing yet? Write to lixingliangsy@163.com and reference your order email.
Your questions, answered
What is TypeGen?
Infer TypeScript types from sample data.
Who should use TypeGen?
Operators and builders who need a fast first draft or checklist from TypeGen.
Does it work without an API key?
Yes in explicit Demo mode. Live AI requires a configured key.
Does it guarantee outcomes?
No. Outputs are decision-support; you still review before publishing or acting.
Does it include SSO, Slack, or bulk CSV?
Only if those features are implemented in this product build — do not assume them from marketing copy.
Where does data go?
Runs may be stored locally under the product's .data/ boundary; treat demos as ephemeral.
Which countries and regions can I use TypeGen in?
As a cloud web app, TypeGen is reachable from any country with internet access; there is no region lock by default. Payment availability via our merchant of record (Waffo Pancake) may vary by processor and region.
Is TypeGen GDPR and privacy compliant?
Your inputs are used only to generate your output and are never sold. Retention, sub-processors, and your rights are described on our Privacy page; Enterprise plans can include a DPA and NDA on request.
What languages does TypeGen support?
The interface and generated results are in English. You can paste input in other major languages wherever the underlying model understands them.
Quick answers
- Sample data to TS types
- Interfaces / type aliases / Zod
- Explain inferred assumptions
- Flag ambiguous fields
- Free is 3 AI runs / day and 15 / month.
How it compares
| Dimension | Manual | TypeGen |
|---|---|---|
| Speed | Minutes per run | Hours to days |
| Consistency | Same ruleset every run | Varies by person |
| Output | Structured, exportable result | Free-form |
| Best for | First-pass decision-support | Final sign-off |
When not to use: Use qualified human review instead — outputs are decision-support; you still review before publishing or acting.
- typegen howto 2026 — From the TypeGen blog.
- typegen overview 2026 — From the TypeGen blog.
- Fleet launch notes — TypeGen ships in the LX AI Micro-SaaS fleet.
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