Best Open Source Alternatives to DocuSign

Compare the best free and open-source alternatives to DocuSign — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated November 2026 · 8 alternatives

DocuSign

Proprietary SaaS

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Platformsweb, mobile, android, ios

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DocuSign alternatives compared

Open-source alternatives to DocuSign, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Docuseal	18,986	AGPL-3.0	LinuxmacOSWindowsDocker	Yes	Nov 2026	Visit
Signature Pad	12,076	MIT	Web	No	Oct 2026	Visit
OpenSign	7,211	AGPL-3.0	LinuxmacOSWindowsDocker	Yes	Nov 2026	Visit
Docassemble	998	MIT	LinuxmacOSWindowsDocker	Yes	Oct 2026	Visit
LibreSign	841	AGPL-3.0	LinuxmacOSWindowsDocker	Yes	Nov 2026	Visit
Autofirma	345	—	Linux	No	Oct 2026	Visit
DigiDoc4 Client	146	LGPL-2.1	Linux	No	Nov 2026	Visit
SignFlow	0	MIT	LinuxmacOSWindowsDocker	Yes	Jan 2025	Visit

Top open-source DocuSign alternatives

Docuseal18,986AGPL-3.0

Docuseal is a self-hosted alternative to DocuSign that lets you create fillable PDF forms and collect digital signatures with zero per-envelope fees.

LinuxmacOSWindowsDockerWeb

vs DocuSign: a free, open-source option you fully control, licensed AGPL-3.0.

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Signature Pad12,076MIT

Signature Pad is an open-source HTML5 canvas library for smooth signature capture, replacing heavy SaaS signing widgets with fast client-side drawing.

Web

vs DocuSign: a free, open-source option you fully control, licensed MIT.

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OpenSign7,211AGPL-3.0

OpenSign is a self-hosted alternative to DocuSign that lets teams collect digital signatures and manage PDF workflows without recurring per-envelope fees.

LinuxmacOSWindowsDockerWeb

vs DocuSign: a free, open-source option you fully control, licensed AGPL-3.0.

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Docassemble998MIT

Docassemble is an open-source guided interview and document assembly platform that replaces PandaDoc with self-hosted, fee-free contracts and e-signatures.

LinuxmacOSWindowsDockerWeb

vs DocuSign: a free, open-source option you fully control, licensed MIT.

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