{"category":{"slug":"open-source-e-signature-tools","label":"Open-source e-signature tools"},"methodology_url":"https://www.orbator.io/ai-index/methodology","license":"Free to use with attribution to orbator.io","date":"2026-09-07","engine":null,"available_dates":["2026-09-07","2026-09-06","2026-08-19","2026-08-18","2026-08-10","2026-08-09","2026-07-29","2026-07-25","2026-07-22","2026-07-05","2026-07-04","2026-06-17","2026-06-16"],"policy":{"quotable_engines":["anthropic","openai","gemini"],"max_excerpt_chars":400,"full_text_public":false,"customer_runs_public":false,"full_text_retention":"retained at least 24 months, then operator review","notes":["Only Index category runs are archived publicly — customer scans never appear.","The quotable unit is a short excerpt of at most 400 characters, never the full answer.","Engines outside the verbatim allowlist are recorded as having answered, with the excerpt withheld under their terms.","Prompt intent is published; the prompt text itself is not."]},"status":"ok","count":7,"limit":50,"truncated":false,"engines":[{"engine":"anthropic","count":7,"withheld":false,"answers":[{"engine":"anthropic","answered_on":"2026-09-07","prompt_intent":"alternatives","excerpt":"## Lightweight Self-Hosted E-Signature Alternatives\n\nFor small teams looking to avoid the per-seat/per-envelope costs of DocuSign, Adobe Sign, or PandaDoc, several mature open-source tools now let you self-host and keep full control of your documents. Here's the current landscape:\n\n### Top Picks\n\n**1. DocuSeal** — The most commonly recommended option\nDocuSeal is considered the best overall open-so","excerpt_withheld":false,"withheld_reason":null,"highlights":[{"start":121,"end":129,"name":"DocuSign"},{"start":131,"end":141,"name":"Adobe Sign"},{"start":146,"end":154,"name":"PandaDoc"},{"start":303,"end":311,"name":"DocuSeal"},{"start":353,"end":361,"name":"DocuSeal"}]},{"engine":"anthropic","answered_on":"2026-09-07","prompt_intent":"alternatives","excerpt":"## Open-Source E-Signature Alternatives\n\nIf you want to avoid the recurring per-envelope fees of DocuSign, Adobe Sign, or PandaDoc, several mature open-source platforms let you self-host and control your own data. Here are the top options:\n\n### 1. **DocuSeal** — Best overall / closest DocuSign replacement\nDocuSeal is an e-signature platform built for individuals, small teams, and developers who ne","excerpt_withheld":false,"withheld_reason":null,"highlights":[{"start":97,"end":105,"name":"DocuSign"},{"start":107,"end":117,"name":"Adobe Sign"},{"start":122,"end":130,"name":"PandaDoc"},{"start":250,"end":258,"name":"DocuSeal"},{"start":286,"end":294,"name":"DocuSign"},{"start":307,"end":315,"name":"DocuSeal"}]},{"engine":"anthropic","answered_on":"2026-09-07","prompt_intent":"best_in_category","excerpt":"## Best Self-Hosted Digital Signature Platforms (eIDAS/ESIGN Compliant)\n\nBased on current market research, here's a breakdown of the top self-hosted options:\n\n### Top Picks\n\n**1. DocuSeal** — Most recommended overall\nDocuSeal is a leading open-source platform for self-hosted electronic signatures, forked from popular projects and optimized for modern workflows, allowing users to create, send, and","excerpt_withheld":false,"withheld_reason":null,"highlights":[{"start":179,"end":187,"name":"DocuSeal"},{"start":217,"end":225,"name":"DocuSeal"}]},{"engine":"anthropic","answered_on":"2026-09-07","prompt_intent":"best_in_category","excerpt":"## Best Open-Source, Self-Hosted E-Signature Tools\n\nFor signing contracts internally, here are the top options based on current comparisons:\n\n### 🥇 DocuSeal (Top Pick for Most Teams)\nThe best open-source, self-hosted DocuSign alternative in 2026 is DocuSeal for most teams, and it's free to self-host, keeping your signed documents on infrastructure you own, and avoiding per-envelope pricing. It's","excerpt_withheld":false,"withheld_reason":null,"highlights":[{"start":149,"end":157,"name":"DocuSeal"},{"start":218,"end":226,"name":"DocuSign"},{"start":250,"end":258,"name":"DocuSeal"}]},{"engine":"anthropic","answered_on":"2026-09-07","prompt_intent":"comparison","excerpt":"Here's a practical breakdown of open-source e-signature tools and how they map to government vs. startup needs — plus which ones work well for both.\n\n## The core tension\n\n**Government agencies** typically need:\n- Data sovereignty / on-premises or air-gapped hosting\n- Alignment with frameworks like FedRAMP (US) or eIDAS (EU)\n- Deep audit trails and tamper-evidence for legal/compliance review\n- Some","excerpt_withheld":false,"withheld_reason":null,"highlights":[{"start":299,"end":306,"name":"FedRAMP"}]},{"engine":"anthropic","answered_on":"2026-09-07","prompt_intent":"problem_solving","excerpt":"## Self-Hosting an E-Signature Solution: Overview\n\nThere are several mature open-source e-signature platforms you can self-host that include audit trails and multi-party signing. Here's a breakdown of your options and how to set one up.\n\n### Top Open-Source Options\n\n**1. DocuSeal** — Generally considered the most feature-complete, ready-to-deploy option\n- DocuSeal covers templates, multi-party sig","excerpt_withheld":false,"withheld_reason":null,"highlights":[{"start":272,"end":280,"name":"DocuSeal"},{"start":358,"end":366,"name":"DocuSeal"}]},{"engine":"anthropic","answered_on":"2026-09-07","prompt_intent":"recommendation","excerpt":"For a law firm that needs full control over document storage and wants to self-host, a few open-source e-signature platforms stand out. Here's how they compare:\n\n## Top Recommendation: DocuSeal\n\n**DocuSeal** is generally considered the strongest overall choice for self-hosted e-signature needs. It's an open-source, self-hosted solution to create, fill and sign digital documents, and DocuSeal allow","excerpt_withheld":false,"withheld_reason":null,"highlights":[{"start":185,"end":193,"name":"DocuSeal"},{"start":197,"end":205,"name":"DocuSeal"},{"start":386,"end":394,"name":"DocuSeal"}]}]}]}