Introducing Proposo: the open-source proposal platform
We’re building an open-source alternative to DocuSign and PandaDoc. Here’s what it does and why.
Proposals are one of the most important documents a modern business sends — and one of the worst experiences to build. For years the category has been dominated by closed, enterprise-heavy tools with per-seat pricing and editors that feel like fighting a PDF.
We think there’s a better way.
What Proposo does
Proposo is an open-source, self-hostable proposal platform. It combines a modern block-based editor (think Notion), legally binding e-signatures (full audit trail, tamper-proof hashes), and real-time engagement tracking — all in one MIT-licensed codebase you can run on your own infrastructure.
Why we built it
We were frustrated. The tools we evaluated either charged per-seat fees that scaled painfully with team size, locked our data behind proprietary formats, or used editor experiences that felt stuck in 2015. We wanted something that felt modern, respected our data, and didn’t nickel-and-dime the team.
So we built it — in public, on GitHub, with MIT licensing from day one. If you don’t like it, fork it. If you do like it, we also offer a managed version at $20/month that runs on our infrastructure.
Where we’re going
Today, Proposo has a working editor, a signing flow, templates, and basic analytics. Next up: pricing tables with live calculation, CRM integrations (HubSpot is already in progress), and a browser extension that converts any PDF into an editable Proposo document.
If any of this sounds useful, sign up, self-host, or just star the repo on GitHub. We’d love to hear what you think.