Open source alternatives to draw.io

One project on starwire does the same job. Ranked by how much of what draw.io does each one covers, read from its README and website. Ties go to the most active.

What draw.io does

Flowcharts and diagrams on a canvascore
Large shape librariescore
Export to PNG, SVG and PDFcore
Templates
Save to cloud drives or locally
Import from other diagram formats
Editor integrations

Each dot in the table is one job, in this order. Square dots are core jobs and count double. Full means yes, half means partly. "See the evidence" under a project shows the line behind each one. Coverage is what a project documents, not how well it works or how hard it is to move to. How we score this

Project	Covers	Stars	Commits, 12 weeks	Last release	Closed vs opened	Setup	License
CanvasAnvilSelf-hosted diagram editor that generates editable drawio files from text	Same job, different way35%	189+17	123	None	Too few	Needs a server	MIT
Covers 1 of 3 core jobs. Partly: Export to PNG, SVG and PDF; Templates. Not shown: Large shape libraries; Save to cloud drives or locally; Import from other diagram formats; Editor integrations.See the evidence Flowcharts and diagrams on a canvascoreYesflowcharts, architecture diagrams, logic diagrams Large shape librariescoreNot shownNeither the README nor the website mentions it. Export to PNG, SVG and PDFcorePartlywrites editable .drawio files TemplatesPartly200+ templates to choose from Save to cloud drives or locallyNot shownNeither the README nor the website mentions it. Import from other diagram formatsNot shownNeither the README nor the website mentions it. Editor integrationsNot shownNeither the README nor the website mentions it.

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