OpenContracts
Leading#1 in Open sourcemedium confidence
The most-starred open-source contract/legal-document platform (~1.4k★): annotate, analyze and run LLM extraction over contracts — the closest OSS analog to the AI contract-review apps above.Our read
Why it ranks #1
The leading repo in this niche at roughly 1.4k GitHub stars and 171 forks, with commits landing within days; its docs position it as an open document-intelligence platform rather than a narrow template filler.Here is the catch
production deployment needs Docker and additional security configuration
developer-oriented setup is heavier than a hosted contract-review app
operators must provide and maintain storage, models, and scaling infrastructure
Does this well
self-hosting keeps legal documents under the operator's control
extensible annotation, extraction, and citation-graph model
active repository with substantial recent development
Pricing
Checked by hand on 2026-07-23. Prices in this category change often — if this looks wrong, it probably is.
Key features
document corpora and human annotationstructured extraction with custom schemasprogrammable citation graphAI agents and built-in MCP/API access
Sources we read
Quick facts
More in this area
The rest of the Open source column.- 2docassembleThe recognized open-source legal document-assembly platform (~1k★, used by courts and legal-aid orgs): guided interviews that generate contracts, court forms and letters from user input.
- 3Accord Project (Cicero)Linux Foundation project for smart legal contracts (~0.4k★): templates that bind natural-language clauses to a data model and executable logic. Niche but the de-facto open standard.
- 4open-agreementsSmall but on-point niche tool: fills standard legal agreement templates (Common Paper, Bonterms, Y Combinator) and outputs signable DOCX files.
- 5evolsb/claude-legal-skillReviews a pasted contract from your side of the deal, flagging risky clauses against market benchmarks and emitting structured redlines.
- 6zubair-trabzada/ai-legal-claudeClaude Code skill pack scoring contracts 0-100 and drafting NDAs and policies, aimed at freelancers and agencies reselling legal work.
- 7Vaquill-AI/ms-word-addinWord task-pane add-in that redlines, drafts and researches inside the open document using tracked changes; runs hosted or on your own API keys.