Best Open Source Design & Visualization Tools in 2026 | Dorameow

Excalidraw135kDesign & Visualization ToolsPresentation & Pitch Deck Tools+2Excalidraw is an open-source hand-drawn whiteboard for diagrams, wireframes, and presentations, with editable AI generation and MCP connections in Excalidraw+.Open source

tldraw51kDesign & Visualization ToolsCollaboration Tools+2tldraw is an infinite-canvas whiteboard and React SDK for drawing, diagrams, collaboration, and AI workflows that let agents read and modify canvas content.

FigmaFree plan + paidDesign & Visualization ToolsPresentation & Pitch Deck Tools+4Figma is a collaborative design platform for interfaces, whiteboards, slides, and prototypes, with AI agents, prompt-to-app creation, code layers, and MCP.

Figma AIFree plan + paidDesign & Visualization ToolsCoding & Development Tools+2Figma AI is a design-workflow assistant that generates and edits interfaces, prototypes, copy, images, and diagrams while connecting design work to code.

LucidchartFree plan + paidDesign & Visualization ToolsData Analysis Tools+2Lucidchart is a workspace for diagramming, data visualization, and collaboration, with AI for generating, iterating, formatting, and summarizing diagrams.

SketchPaidDesign & Visualization ToolsBrowsers & Extensions+3Sketch is a native macOS UI design and prototyping app with browser collaboration, developer handoff, and an official MCP server for AI-assisted work.

StitchPaidDesign & Visualization ToolsCoding & Development Tools+1Stitch, formerly Galileo AI, is Google's AI design canvas for turning prompts, images, and code into interfaces, prototypes, and frontend outputs.

UizardFree plan + paidDesign & Visualization ToolsPrompt ToolsUizard is an AI UI design platform that turns prompts, screenshots, and sketches into editable screens, themes, wireframes, and interactive product prototypes.

VisilyFreeDesign & Visualization ToolsPrompt ToolsVisily is an AI wireframing and prototyping platform that turns prompts, screenshots, sketches, and diagrams into editable UI designs for product planning.

WhimsicalFree plan + paidDesign & Visualization ToolsData Analysis Tools+2Whimsical is a visual workspace for flowcharts, mind maps, wireframes, and docs, with AI that creates diagrams and lets agents search or edit workspace content.

Stable Diffusion web UI165kAI Image GeneratorsBrowsers & Extensions+3Stable Diffusion web UI is an open-source browser interface for local text-to-image, image-to-image, editing, and extension workflows.Open source

Upscayl51kAI Image GeneratorsImage Editing Tools+1Upscayl is an open-source AI image upscaler for Windows, macOS, and Linux that enlarges low-resolution pictures locally with AI models and batch processing.Open source

Insomnia40kCoding & Development ToolsTesting & QA Tools+2Insomnia is an open-source API client for designing and testing REST, GraphQL, WebSocket, SSE, gRPC, and MCP requests with local, Git, or cloud storage.Open source

Swagger29kCoding & Development ToolsLegal & Copyright Tools+4Swagger is an API design and documentation platform that helps teams define OpenAPI contracts, validate them, generate references, and explore endpoints.Open source

Invoke29kAI Image GeneratorsDesign & Visualization Tools+3Invoke is an open-source image platform, formerly InvokeAI, for generating and editing Stable Diffusion media with workflows and self-hosted desktop use.Open source

FLUX26kAI Image GeneratorsDesign & Visualization Tools+2FLUX is Black Forest Labs’ image model family for text-to-image, editing, variation, and API use, available through open weights and a web playground.Open source

AaptivPaidHealthcare ToolsLifestyle & Fitness Apps+1Aaptiv is a digital fitness and wellness platform with AI-designed routines, on-demand classes, gym access, and care programs for employers and health plans.

Adobe FireflyFree plan + paidAI Image GeneratorsVideo Creation & Editing Tools+2Adobe Firefly is Adobe's generative content studio for creating and editing images, video, audio, and designs with Adobe and partner AI models.

Bige DesignFree plan + paidPresentation & Pitch Deck ToolsSocial Media Tools+3Bige Design is an AI design platform for social graphics, posters, image editing, AI cutouts, and presentations with templates and commercial-use assets.

Canva AIFree plan + paidPresentation & Pitch Deck ToolsDesign & Visualization Tools+1Canva AI is a conversational design assistant that helps people create, edit, and refine visual projects, documents, presentations, and other Canva content.

Chuangkit AIFree plan + paidAI Image GeneratorsMarketing Tools+2Chuangkit AI is an online design and content tool that turns prompts into posters, product images, illustrations and marketing copy for everyday publishing work.

Designs.aiPaidPresentation & Pitch Deck ToolsResearch Tools+4Designs.ai is an AI creative workspace whose agents turn briefs into branded designs, images, videos, slides, audio, copy, and research for teams.

EqxiuFree plan + paidMarketing ToolsForm Builders+2Eqxiu is an online marketing-content platform for H5 pages, invitations, forms, quizzes, surveys, and campaigns with AI copywriting and design tools.

FigJamFreePlanning & Scheduling ToolsDesign & Visualization Tools+1FigJam is Figma’s collaborative online whiteboard for brainstorming, diagrams, meetings, and planning, with AI that generates boards and summarizes ideas.

Fotor LanshejiFree plan + paidImage Editing ToolsPhotography Tools+2Fotor Lansheji is an AI-assisted online design and photo-editing platform for posters, social graphics, templates, retouching, and print materials.

FramerFree plan + paidWebsite BuildersDesign & Visualization Tools+1Framer is a visual website builder for designing and publishing responsive sites, with AI agents that edit layouts, content, CMS data, and publishing settings.

GammaFree plan + paidPresentation & Pitch Deck ToolsDesign & Visualization Tools+1Gamma is an AI communication platform for presentations, documents, webpages, and graphics that generates, edits, imports, shares, and exports content online.

Gaoding AIFree plan + paidAI Image GeneratorsE-commerce Tools+4Gaoding AI is an online design platform for generating images, videos, and e-commerce assets, with AI editing, product workflows, templates, and an agent mode.

Gaoding Smart CutoutFree plan + paidBrowsers & ExtensionsImage Editing Tools+2Gaoding Smart Cutout is an AI background-removal service for portraits, products, and graphics with browser, SDK, and API access for batch processing and ID photos.

JS Design AIFreeAI Image GeneratorsDesign & Visualization Tools+3JS Design AI is a UI design assistant that turns text prompts into editable concepts, helping teams explore screens, layouts and prototypes in an online design canvas.

MAKAFree plan + paidE-commerce ToolsVideo Creation & Editing Tools+2MAKA is an online visual-design platform for H5 pages, posters, videos, invitations, e-commerce graphics, and print materials with templates and AI editing.

MakeFree plan + paidAutomation ToolsDesign & Visualization Tools+3Make is a visual automation platform for connecting apps, data, and AI agents, letting teams design, run, inspect, and revise workflows in one scenario canvas.

MasterGo AIFreeAI Image GeneratorsDesign & Visualization Tools+3MasterGo AI is a design-to-code workspace that generates editable UI screens and front-end code from prompts, references or canvas layers for product teams.

Meitu XiuxiuFree plan + paidAI Image GeneratorsImage Editing Tools+4Meitu Xiuxiu is an AI-enhanced photo editor with portrait retouching, object removal, background expansion, creative generation, filters, and video tools.

Pixso AIFreeAI Image GeneratorsDesign & Visualization Tools+3Pixso AI is a design assistant that turns text or screenshots into editable interfaces and connects design context to coding tools through MCP.

PlaygroundFree plan + paidAI Image GeneratorsLogo & Avatar Makers+2Playground is an AI design studio for making posters, logos, stickers, apparel, and graphics from prompts, templates, reference images, and built-in models.

PostmanFree plan + paidCoding & Development ToolsTesting & QA Tools+3Postman is an API development platform for designing, sending, testing, documenting, and governing APIs with collections, automation, and AI workflows.

RabbitPreFree plan + paidMarketing ToolsDesign & Visualization Tools+2RabbitPre is an AI marketing-content platform for visual generation, agent workflows, interactive campaigns, design production, and enterprise distribution.

RecraftFree plan + paidAI Image GeneratorsLogo & Avatar Makers+2Recraft is an AI design studio for generating and editing images, illustrations, logos, and native SVG vectors, with brand styles, exports, and an API.

RenrenxiuFree plan + paidMarketing ToolsForm Builders+3Renrenxiu is an AI-assisted marketing platform for H5 pages, posters, invitations, surveys, forms, games, and campaigns with templates and API integration.

TuguaishouFree plan + paidPresentation & Pitch Deck ToolsSocial Media Tools+3Tuguaishou is an AI online design platform for posters, social graphics, presentations, and marketing visuals, combining templates with text and image generation.

WebflowFree plan + paidWebsite BuildersDesign & Visualization Tools+2Webflow is a visual website platform for designing, managing, and publishing web experiences, with AI site building, copy generation, and agent workflows.

Flowise56kChatbot BuildersDesign & Visualization Tools+4Flowise is a visual AI builder for creating agents, chatflows, and LLM workflows with a graphical editor, retrieval, APIs, and embedded chat interfaces.Open sourceNo longer maintained

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