Founder-led hardware
One or a handful of products, scattered notes/evidence, and a real need to prepare supplier conversations.
Evidence-first product development
Turn messy product intent into a brief a manufacturer can actually use.
SpecSprout structures your product evidence, separates facts from assumptions, exposes the unknowns that block progress and turns the result into an honest manufacturer-ready handoff.
✓ Your designs remain yours
✓ Missing work stays missing
✓ Evidence stays traceable
facts → decisions
PRODUCT READINESS
What do we actually know?
68
Confirmed17
Inferred4
Missing9
Load targetSupport ≥ 5 kg without collapseConfirmed
Hinge cycle lifeNo validation target suppliedMissing
Surface finishMatte anodized direction; exact standard openPartial
Most product briefs hide uncertainty.Factories then price the uncertainty, fill gaps with assumptions or send generic catalogue solutions.
SpecSprout makes uncertainty useful.Every requirement carries evidence state, ownership, stage and a clear next action.
Initial focus
Built first for hardware founders and lean physical-product teams.
The strongest fit is an early-stage physical product moving from rough definition toward supplier quotation or prototype — where some decisions are clear, some need qualified external input, and hiding that boundary creates expensive mistakes.
RFQ / prototype preparation
Enough product intent to move forward, but not enough evidence to pretend every engineering detail is final.
Not an engineering-certification shortcut
SpecSprout structures evidence and ownership. It does not replace qualified engineering, testing or compliance work.
How it works
From rough idea to an honest manufacturer handoff.
No giant specification form. Start with what you already have and let the missing work reveal itself.
Give SpecSprout your evidence
Describe the product and attach drawings, PDFs, images or notes. The AI extracts atomic requirements without silently filling technical gaps.
Resolve the decisions that belong to you
See confirmed, partial, inferred and missing requirements. Founder choices stay separate from engineering, supplier, lab and compliance work.
Send a brief that tells the truth
Generate a manufacturer-facing brief that preserves confirmed facts, unresolved requirements and the questions the supplier actually needs to answer.
Product demo
Readiness that cannot be gamed by clicking “done.”
SpecSprout treats engineering, safety, testing and compliance as evidence problems. If the required proof does not exist, the readiness gate stays blocked.
- ✓ Requirement-level evidence state
- ✓ Founder vs technical ownership
- ✓ Concept / Quote / Prototype / Production stages
- ✓ Hard gates for unresolved critical work
- ✓ AI trade-offs instead of invented specifications
Readiness by stageIllustrative example
Concept92%
Product intent is clearQuote68%
Commercial + material gaps remainPrototype41%
Interfaces + testing need resolutionProduction22%
Validation evidence required!
Production gate active
Critical unresolved technical work prevents a misleading high score.
Core features
Built for the uncomfortable middle between “idea” and “factory.”
Evidence-first AI analysis
Turn product descriptions and supporting files into structured atomic requirements with explicit evidence states.
Requirement system
Track importance, owner, stage, validation type, why-it-matters context and unresolved questions per requirement.
Decision Center
Resolve founder choices while keeping engineering, supplier, lab and compliance confirmations appropriately separate.
Cloud-backed projects
Keep projects and evidence tied to your account, sync across devices and maintain local resilience for active work.
Manufacturer handoffs
Generate a clean external brief plus an internal readiness memo without allowing exports to alter the underlying score.
Cost + security controls
Server-side AI, quotas, rate limits, file validation, CSRF protection and account-scoped cloud authorization are built into the product.
Who it is for
For people who need to turn product intent into something another professional can act on.
Hardware & physical-product founders
Stop sending factories a concept deck and hoping they infer the missing technical decisions correctly.
Industrial designers & small studios
Turn client intent and reference material into a transparent requirements model before supplier conversations begin.
Small product teams
Create one source of truth for what is known, what is assumed and who must resolve the remaining work.
Trust by design
Your product work should not become a black box just because AI is involved.
Your designs remain yours. Product work can stay in your account-scoped cloud workspace and local browser cache. When you deliberately run an AI feature, the required product text and selected evidence are sent server-side to the configured OpenAI API. OpenAI states that API/business inputs and outputs are not used to train models by default unless the API organization opts in; SpecSprout's Trust Center separately shows whether this deployment has recorded a settings review.
Deleted-project and old-backup retention is user-selectable at 7, 30 or 90 days. External processors can have separate provider/legal retention rules, so those are disclosed separately instead of being hidden behind one retention number.
Your designs remain yoursSpecSprout takes only the limited processing rights needed to operate the service.
Server-side AI keySecrets never ship in browser code.
Account-scoped cloudServer authorization controls workspace access; Netlify documents Blobs encryption at rest and in transit.
Evidence validationFiles are checked before cloud/AI processing.
No fake approvalReadiness is not certification or engineering sign-off.
Pricing
Start small. Pay for more capacity when the work becomes real.
Loading the live plan catalog…
Prices and plan limits are loaded from the same server-side catalog used by SpecSprout billing. Taxes and final consumer terms depend on the configured seller/payment setup.
Founding-stage proof
No invented testimonials.
SpecSprout is still in its founding stage. Real customer quotes and logos will only appear here after people have actually used the product and explicitly allowed us to publish their feedback.
✦Real proof goes here, not marketing fiction.
Until then, judge the product by the workflow, example output and the live app.
FAQ
Questions before you give it a real product.
What does SpecSprout actually do?+
It converts your product intent and evidence into structured requirements, readiness stages, unresolved decisions and manufacturer-facing handoffs. It is designed to make gaps explicit rather than guess them away.
Does the AI invent missing specifications?+
It is explicitly instructed not to. Missing engineering, testing, safety and compliance work stays unresolved until appropriate evidence or qualified input exists. The AI can explain options and trade-offs without pretending the choice has already been validated.
Is a SpecSprout readiness score engineering approval?+
No. Readiness is a planning aid. It is not certification, laboratory validation, manufacturability approval, regulatory clearance or professional engineering sign-off.
Who owns the product designs and files I upload?+
You retain ownership of your underlying product concepts and uploaded content. The Terms grant only the limited processing rights required to operate the service.
Does OpenAI train on product data sent through SpecSprout?+
OpenAI states that API/business inputs and outputs are not used to train its models by default unless the API organization explicitly opts in. Because that provider setting lives outside the SpecSprout codebase, the Trust Center shows the policy source and whether the deployment has recorded an account-level data-control review. SpecSprout does not claim Zero Data Retention unless it has actually been approved and recorded.
Can I use SpecSprout on more than one device?+
Yes. Signed-in projects and evidence are cloud-backed and associated with your account, with a local browser cache used for resilience.
Can I try it before paying?+
The live plan catalog includes a Free plan. Paid-plan availability and introductory trial behavior are shown from the current server configuration.
Ready to grow something real?
Start with the product information you already have.
SpecSprout will show you what is solid, what is assumed and what needs to happen next.