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Start with your writing
Choose annual reports, past proposals, program descriptions, and other organizational writing that sounds like you.
For nonprofit leaders who didn't sign up to be grant writers
Finally, someone to handle the grant chaos — so you can lead the mission.
Grantsville is self-serve AI grant writing software for small nonprofits. It turns your reviewed organizational sources and a target opportunity into a funder-specific Letter of Inquiry or Foundation Proposal, shaped by your organization's language and writing patterns. You review the draft before you submit.
First LOI free. No credit card required. You review before submission.
The Reality
Sound familiar?
“Your program stats are in a 2022 email. Your last proposal is on someone’s laptop. Your board list is three versions out of date. Every grant starts with two hours of archaeology before you write a single word.”
The Archaeology Problem
“You became an ED to change lives — not to decode 47-page NOFOs at midnight.”
The Midnight NOFO
“Your budget is tight. A consultant may be more support than this application needs, while a blank AI chat leaves you to supply the workflow. You need a practical middle path.”
The Budget Trap
“One compliance miss can cost you the entire award. And you’re the one who has to catch it.”
The Compliance Cliff
The Vault
Build a reusable source library one reviewed fact at a time.
Upload your 501(c)(3) and a past proposal. Every document you verify — every proposal approved, every stat confirmed — becomes reviewed organizational knowledge available to your Grantsville workspace. That’s not a filing cabinet. That’s how you stop starting over.
Private to your orgReview before drafting
Vault · Your Private Repository
Your institutional memory, from day one.
Past Proposals
Language, structure, wins
Impact Data
Outcomes, metrics, proof
Board & Staff
Bios, rosters, capacity
Financials
Budgets, audits, 990s
Reuse reviewed context for the next opportunity, then update anything that has changed.
Value compounds with every use
First LOI
Organize
- Collect the sources behind the application
- Review organizational facts before drafting
- Keep the source trail with the work
Next application
Reuse
- Start from reviewed organizational context
- Update facts that have changed
- Adapt the draft to a new opportunity
Ongoing Vault
Maintain
- Keep important facts in one source library
- Preserve context for future staff
- Control which sources support each draft
Your data, your rules.
You choose the reviewed sources that support the work. Grantsville keeps citations connected to the draft so you can inspect the grounding, correct unsupported output, and review every section before submission.
Your organization’s voice
Built from the way your organization already writes.
Grantsville builds a voice profile from the organizational writing you choose, lets you review what it found, and uses that profile to shape each draft.
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Review your voice profile
Preview how the profile sounds, then confirm, change, or reject the language patterns and preferences Grantsville found.
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Shape and review each draft
Your profile guides both LOI and Foundation Proposal drafts. A voice review can surface wording that may sound off before you submit.
Voice shaping is guidance, not exact imitation. You review and approve the final wording before submission.
Quality Certification
This is what “handled” looks like
The LOI workflow surfaces requirement, grounding, and consistency checks for you to review before submission.
Illustrative example
Community Youth Mentorship Program
Example opportunity review
NOFO Coverage
100%
Requirements addressed
Voice Match
94%
Sounds like your org
Compliance
PASS
Zero critical defects
Funder Alignment
87%
Matches funder priorities
Illustrative example of the review interface — not customer results.
Available deliverables
Available now · Letter of Inquiry workflow
Letter of Inquiry
- Funder alignment mapping
- Voice-shaped drafting
- Compliance verification
- Quality scores before you submit
Available now · Foundation Proposal workflow
Foundation Proposal
- 3–5 page narrative
- Voice-shaped drafting
- Cover letter + organization profile
- Opportunity-specific quality checks
Every grant. Every deadline. One place.
Soon: a single view of your entire funding strategy — active grants, upcoming deadlines, and alignment between what you promised and what you’ve delivered.
DeadlinesAlignmentProgress
On the roadmap
How it works
Three steps. No grant writing degree required.
You provide the context. We handle the heavy lifting. You own the result.
Step 1
Upload your documents
501(c)(3) letter, a past proposal, your target opportunity
No past proposal? Begin with your nonprofit context and target opportunity, then add the sources the draft needs.
Step 2 · We handle
the structure
Grantsville organizes the opportunity requirements and drafts from sources you review, so you do not have to rebuild the application structure from a blank page.
Compliance parsingDraft structureRequirement mappingFunder alignmentQuality scoringFormatting & assembly
Step 3 · You own
the judgment that matters
You know your community better than any funder profile can capture. We make sure that knowledge — not a template — drives every proposal.
Mission narrativeOrganizational voiceStrategic visionYour story
What makes you, you
Built for the mission-driven
We built Grantsville for one side of the table. Yours.
Keep the applicant in control of AI-assisted work.
Funder rules about AI use vary and can change. You are responsible for checking the current opportunity instructions and funder policy before submission. Grantsville keeps source context and review steps close to the draft so you can verify the work.
When a disclosure is appropriate, the workflow can help you draft an AI disclosure statement and authorship certificate for your review. These are supporting documents, not legal advice or a substitute for the funder’s current requirements.
A reviewable workflow for grant applicants
Reviewed organizational sourcesOpportunity-specific requirementsApplicant review before submission
Your organization supplies the knowledge. Grantsville helps structure the work. You make the final call.
Pricing
Pay for the outcome. Not the tool.
You pay when the work is done — per completed deliverable, not for a monthly subscription to a blank page.
Your first Letter of Inquiry is free, so you can review the workflow and draft before deciding whether to continue.
First one free
Letter of Inquiry
A source-grounded Letter of Inquiry with alignment mapping and quality checks, ready for your review
- Funder alignment mapping
- Voice-shaped drafting
- Compliance verification
- Quality scores before you submit
Available now
Foundation Proposal
A source-grounded workflow for a longer foundation proposal package
- 3–5 page narrative
- Voice-shaped drafting
- Cover letter + organization profile
- Opportunity-specific quality checks
Budget support is planned for a later release.
Start a Foundation ProposalYou review and approve the work. Paid deliverables are priced individually rather than through a subscription.
FAQ
Questions you're probably asking
Will my proposal sound like it was written by AI?
Grantsville builds a voice profile from organizational writing you choose. You can preview the profile and review its preferences before it shapes a draft. Because generative output can still be wrong or sound off, you review and approve every section before you submit it.
I've never written a grant before — can I still use this?
Yes. You provide the mission and program context. Grantsville organizes opportunity requirements, drafts from reviewed sources, and shows you what needs review. You remain responsible for the final accuracy and submission.
What if we've never received a grant before?
A prior award is not required. To start the first Letter of Inquiry flow, you need your nonprofit context, a target opportunity, and enough reviewed organizational information to support the draft.
Is this just ChatGPT with a grant template?
No. Grantsville combines a source Vault, an organization-specific voice profile, opportunity requirement extraction, planning, source-aware drafting, review states, and quality checks. The language model is one part of that workflow, not the only layer.
Is my organizational data safe?
Grantsville's privacy policy describes encryption at rest, TLS in transit, row-level security between organizations, and short-lived signed download links. It also explains the service providers used to operate the product.
What if I don't like the result?
Your first Letter of Inquiry is free, and you review the draft before choosing whether to continue. Quality checks can surface gaps, but they do not guarantee funding or replace your final review.
How is this different from hiring a grant consultant?
A consultant may be the better fit for complex strategy, relationship development, or highly customized applications. Grantsville is a self-serve option for a source-grounded Letter of Inquiry workflow, with the first LOI free and later deliverables priced individually.
Your mission is too important for grant paperwork to get in the way.
Your first Letter of Inquiry is free, with no credit card required. Create your account, verify your email, then identify your nonprofit to begin.