Lucidchart alternatives: 3 free & open-source picks

Curated, verified, and actually free. No trials, no crippled tiers. Star counts and last-activity dates checked by hand, not scraped and forgotten.

lucidchart $9/mothese $0PARCIALcan I vibecode it? the honest breakdown📐 diagramas
Excalidrawopen sourcewebself-hostedthey host it

Más rápido y amigable para bocetos colaborativos y diagramas de sistema; deliberadamente peor en plantillas formales y dibujo de precisión.

licenseMIT

runsyour machine or their cloud

installOpen the hosted web app/PWA, or deploy the static app and optional collaboration server

dataSolo drawings are stored in browser storage or explicit .excalidraw JSON files; exports include PNG and SVG; multiplayer room data is end-to-end encrypted and the decryption key is carried in the share URL

the catch vs LucidchartIts deliberately hand-drawn style, smaller formal-shape library, and limited precision drafting make it much worse for rigorous technical and business diagrams.

setupNone for the hosted app; the trade-off appears later because durable workspace organization, centralized team administration, and managed version history are deliberately minimal

facts verified 2026-08-10

diagrams.netopen sourcedesktopwebself-hostedthey host it

La respuesta obvia porque es la correcta: diagramación amplia, propiedad local, importaciones, plantillas y colaboración en tiempo real a través de Google Drive o OneDrive.

licenseApache-2.0

runsyour machine or their cloud

installOpen the web app, or install the native desktop package

dataDiagrams are local .drawio XML files or files saved to a user-selected provider such as Google Drive or OneDrive; the desktop app keeps diagram content on the machine and can export common image/document formats

setup✓ installs clean

the catch vs LucidchartIt matches the drawing depth but has a weaker integrated team workspace for comments, review, versioning, administration, and cross-document organization than Lucidchart.

facts verified 2026-08-10

CryptPadopen sourcewebself-hostedthey host it

Documentos colaborativos cifrados, pizarras, diagramas, diapositivas y tableros Kanban; menos pulido que Lucidchart, considerablemente menos interesado en tus datos.

licenseAGPL-3.0+

runsyour machine or their cloud

installUse a public CryptPad instance, or self-host the Node.js service behind a reverse proxy

dataDocuments are encrypted in the browser before upload; the server stores encrypted document files, blobs, and account pin metadata on its filesystem and cannot read document content

the catch vs LucidchartIts diagram tool has far fewer professional shape libraries, templates, imports, data-linking features, and precision controls than Lucidchart.

setupPublic hosting is immediate; self-hosting requires two domains or subdomains, HTTPS, strict security headers, Node.js configuration, persistent storage, and careful upgrades/backups

facts verified 2026-08-10

last updated 2026-08-10 · no votes, no pay-to-list · just what's real

at a glance
toollicenserunning itplatformsstarsactive
ExcalidrawMITthey host itweb, self-hosted129,0542026-08
diagrams.netApache-2.0they host itweb, macos, windows, linux, self-hosted62,4642026-07
CryptPadAGPL-3.0+they host itweb, self-hosted7,8252026-08
Rather build it exactly your way? The one-shot prompt is free too.get the prompt →
why people still pay for Lucidchart

Lucidchart: The shapes are easy; customers pay for low-friction editing, reliable exports, collaboration, and a canvas that never fights them. If none of that applies to you, any pick above saves $108 a year.

questions
Is there a free alternative to Lucidchart?

Yes: Excalidraw, diagrams.net, CryptPad. Every tool on this page is either open source or genuinely free to use long-term: no trials, no crippled tiers.

Should I just build my own Lucidchart?

Our verdict is PARCIAL. The visible diagramming loop is buildable, but a credible replacement needs more than the first screen. Lucidchart earns its keep through interaction polish, collaboration, so expect a weekend or multi-day build and a narrower personal scope. If you'd rather build, the exact one-shot prompt is free at puedovibecodearlo.app/lucidchart.

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