The top-rated alternative to Lucidchart is draw.io, which is free and open source. People also recommend Excalidraw, LibreOffice - Draw, Dia and yEd Graph Editor. You're spoiled for choice with Diagram Editors like Lucidchart: we list more than 100 alternatives for the web, Mac, Windows, Linux and iPhone.
Astah UML is a UML modeling editor with a user-friendly interface. It allows for the creation of various UML 2.x diagrams and mindmaps. The software includes features such as auto-creation of class diagrams, customizable shortcut keys, and merging project files.
Japan
Turn any code into an interactive knowledge graph you can explore, search, and ask questions about. Works with Claude Code, Codex, Cursor, Copilot, Gemini CLI, and more.
Cloud-based diagram creation platform hosting draw.io diagrams, featuring real-time collaboration in a shared workspace. Supports flowcharts, cloud architecture (AWS, Azure, GCP), UML, ER, network diagrams, seamless import/export, and modern, intuitive interface.
AUDACE.ai revolutionizes innovation by providing AI-powered tools that streamline idea development, evaluation, and execution. It empowers innovation leaders, entrepreneurs, and project champions to refine their concepts, gain actionable insights, and prototype rapidly.
Hunch is a new kind of workspace for AI-first work, empowering users to create custom AI workflows without any programming. It's as simple as connecting blocks, each representing a specific task. The workspace lets you harness any AI model to be more productive and creative.
United States
Database design software for software engineers. Reads your live PostgreSQL, Supabase, MySQL, MariaDB, SQL Server or SQLite database, gives your AI agent a local MCP server, and shows each schema migration's impact before it runs. Diagrams are JSON in Git. One-time purchase.
ConceptDraw DIAGRAM v14 is the only product that supports Visio legacy, runs on macOS and Windows, and is a perpetual license. Import/Export VDX, VSDX, VSSX and Import VSD, VSS files.
Ukraine
Not another chat box. Nodalist is a visual reasoning workspace where thinking holds its shape: node canvas, six-model AI debate (AI Storming), cited reusable research (AI Grounding), file-aware AI.
Türkiye
Eraser is an all-in-one ideation tool for distributed teams. Eraser allows users to communicate ideas at the speed of thought using a markdown note editor, a lightweight canvas. Use Eraser for brainstorming, diagramming, wireframing, and interviewing!
EDGE Diagrammer is a diagramming tool for creating various types of diagrams including block diagrams, flowcharts, and organizational charts. It automatically connects lines to figures, adjusts when objects are moved, and modifies shape size when text is added.
United States
AuriumAI is an AI-powered business platform with a master agent that manages invoicing, hiring, strategy, data analysis, compliance, and office tasks through one chat interface, acting as an autonomous operational team for smarter, faster business decisions.
Think Machine is a powerful mind mapping tool designed for visualizing complex information. Unlike other apps limited to simple connections, it excels at handling highly connected data with professional-grade tools.
