Free online data flow diagram maker
Create data flow diagrams with external entities, processes, data stores, and data flows, then expand a context diagram into Level 1 or Level 2 detail in EdrawMax.

Why Use EdrawMax Data Flow Diagram Maker?
Explore nearly 20,000 templates and 26,000 symbols for over 210 types of diagrams including numerous data flow diagrams. Whether you are looking for one of online shopping, hotel management, hospital management, or others, EdrawMax has you covered.

Drag and drop symbols from the libraries that appear automatically after you choose a template. Try One-click Beautify function to increase efficiency. Create your personal templates and save self-made elements in your own libraries for future use. Group objects.

Circle areas of the diagram to directly generate a slideshow. Preview and export it in the ppt format. Also, you can choose to export your diagrams in the format of word or excel and edit them there.

Try EdrawMax, which is available on macOS and has a free version, as a replacement of Visio. Import a VSDX file or export a diagram to cooperate with other team members using Visio.

Export your diagrams in JPG or PNG format for viewing, PDF format sharing, or SVG format for further editing. EdrawMax offers over 10 export options to suit your needs.

How to Make a Data Flow Diagram in 3 Simple Steps
What our users say
More Data Flow Diagram Tools
Explore related diagram makers for adjacent planning, analysis, or documentation tasks.
FAQs about Data Flow Diagram
- What is a data flow diagram?⌄A DFD shows how information moves through a system among external entities, processes, data stores, and data flows.
- What are the four primary components of a DFD?⌄The four core elements are external entities, processes, data stores, and data flows.
- What is the difference between a Level 0 and Level 1 DFD?⌄A Level 0 or context view shows the system at a high level, while Level 1 decomposes major processes into more detailed sub-processes and data paths.
- How does a DFD differ from a flowchart?⌄A DFD emphasizes movement and transformation of data; a flowchart emphasizes the sequence of actions, decisions, or control logic.



Free data flow diagram templates from EdrawMax