Alternatives
Best SAFE software for startups
Last checked
BildrX is one flat price per company: free to 30 stakeholders with no raise ceiling, then $499 a year. The investor pipeline runs next to the cap table: 17,000+ investors, ranked matches and a CRM. A SAFE tool has three jobs: issue the SAFE, get it signed, and convert it when the priced round closes.
How we checked this list
We read each vendor's own pages on 15 Oct 2026 for its plans, its free-plan limit and its published price. Every figure carries its source and date on the compare pages. BildrX is listed first because we wrote this page.
The tools
1. BildrX
Issue SAFEs, notes and warrants on Free. Cap table documents go out for e-signing and never count against your e-sign allowance. Convert a SAFE into a preferred series: that conversion is your one priced-round close on Free. Pro has unlimited closes.
Choose BildrX if you want SAFEs issued, signed and converted on a free plan. Price: free to 30 stakeholders, with no raise ceiling. Pro is $499 a year. Where it stops: a SAFE converted into options is refused on Free.
2. Carta
Carta lists SAFE modelling and SAFE fundraising and closings on its free Launch plan. Priced-round modelling and deal closings are on the paid Build plan. Its SAFE flow requires a C-Corp.
Choose Carta if you are a US C-Corp and want SAFE fundraising and closings on a free plan. Free plan: Launch: Companies under 25 stakeholders and under $1M raised. Line by line: BildrX vs Carta.
3. Spreadsheets
Free and fully flexible. SAFE conversion maths is manual, and the documents and signatures live elsewhere.
Choose a spreadsheet if you want zero cost and total flexibility and you are comfortable converting by hand. Line by line: BildrX vs Spreadsheets.