Documenso
Documenso is open-source document signing, a self-hosted alternative to DocuSign for contracts, engagement letters and approvals. Upload a PDF, place signature and text fields, send it for signing and track completion, either through the web interface or entirely through its API, with the signed documents and their audit evidence staying inside your own infrastructure.
View the repo · documenso/documenso ↗Firms that send a steady stream of agreements and want signing inside their own stack, and product teams that need signature flows embedded via API without a per-envelope bill. It suits organisations that already self-host other tools and can care for one more. If you sign a handful of documents a year, a hosted signing service is less effort; the case for self-hosting builds with volume and with data-control requirements.
Install itgit clone https://github.com/documenso/documenso.git
cd documenso && cp .env.example .env # set the required secrets first
docker compose -f docker/production/compose.yml up -dElectronic signature law varies by jurisdiction and by document type, and some instruments still demand more than a standard electronic signature, so confirm the legal position for your use before relying on it. Operationally it needs a Postgres database, reliable outbound email for signing requests, and signing certificates configured for sealing completed documents. Back up the database and the document store together, because a signed artefact and its audit trail are only useful as a pair.
Where Blash AI comes inWe connect signing into intake and onboarding so nothing waits on manual chasing: a deal closes in the CRM, n8n generates the engagement letter, Documenso sends it, and the countersigned copy lands in the right folder with the record updated. Signature status becomes a field your workflows can act on rather than an inbox someone has to watch.
When you want this running on your real stack, that is the engagement
Book an AI audit →n8n →
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Ollama →
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