ClearWork vs OnUML

ClearWork creates editable process maps, flowcharts and swimlane diagrams from documents, recordings, transcripts and other unstructured material. Its discovery agent interviews people who carry out the work, helping identify gaps between documented processes and actual practice. A person reviews and confirms findings before they enter the record; conflicts, variations and unknowns are surfaced separately. Diagrams can be revised with plain-language AI prompts or edited manually, and each generated line links to its source, such as an interview moment, document page or recording timestamp. A validated record can also produce requirements, business requirements documents, traceability matrices, user stories, SOPs, work instructions, summaries and roadmaps. Diagrams export to Visio and draw.io; documents export to Word and PDF, and Mermaid syntax is supported. ClearWork runs on the web. Paid plans start at $200 a month, and a 14-day trial offers full platform access with unlimited use and no credit card required. The maker says client data is contractually excluded from AI model training and engagements have project-level isolation and role-based access.

OnUML is a web-based AI diagram generator and UML editor for Mermaid, PlantUML, Draw.io and mind maps. It creates diagrams from natural-language prompts and supported image inputs, then supports visual or code editing with a real-time preview. A one-click repair tool addresses Mermaid and PlantUML syntax errors. Users can save multiple code versions, restore earlier content and organize diagrams by project. PNG and SVG export and shareable links are supported. Its remote MCP server connects with coding agents including Codex, Claude Code, Cursor and OpenClaw. MCP follows workspace permissions and can read or update Mermaid, PlantUML and OnUML mind maps; Draw.io is excluded. It checks for newer edits before updates and stops if an overwrite would occur. The Free plan costs nothing, billed forever, with two diagrams per project, ten cloud projects per workspace, two workspaces and ten free model requests daily. Paid choices include 4.90 USD and 9.90 USD one-time plans, a 19.90 USD one-time Pro Pack and Pro at $8 a month.