PedigreeClinical genetics
Four-generation haemophilia A pedigree: X-linked inheritance, carriers, a proband and identical twins
Then“Label the obligate carriers”
Who it is for
Built for people who draw for a living.
Pick a field, or one drawing inside it. Explore curated reference drawings for the work you do.
Electrical
Drawing examples
Professional diagrams, in detail.
Six curated reference drawings, each shown whole, with a starting request and an idea for what to change next.
Fault treeReliability
Pressure vessel rupture: sustained over-pressure, two failed relief valves and the event probabilities
Then“List the minimal cut sets”
State machineSoftware
EV charge point lifecycle: authorization, charging, suspension and fault recovery
Then“Add a timeout to authorization”
GanttProject management
Warehouse management system rollout: hardware, software, staff training and a go-live milestone
Then“Show which tasks delay go-live”
CircuitElectronics
9 V NE555 LED flasher: timing capacitors, a 2N3904 transistor driver and a red LED
Then“Label the timing components”
Floor planArchitecture
A furnished ground floor with a living room, kitchen, guest bedroom, bathroom and utility room
Then“Turn the guest bedroom into a study”
Why it holds up
The diagrams ChatGPT can’t draw.
Specialist drawings need more than boxes and arrows. Choose a tool that speaks the notation.
| What it takes | ChatGPTgeneric AI | Mermaidcode-only | ChatDiagramtyped engines |
|---|---|---|---|
| Standards-compliant symbols | No | No | IEEE 315 · ISA-5.1 · NSGC |
| Single-line diagram | ASCII sketch | No | Typed electrical symbols |
| Genogram / pedigree | No | No | McGoldrick · NSGC |
| P&ID, floor plan, ladder logic | No | No | Yes |
| Change it by talking | Starts over | No | Yes, with version history |
Routed automatically
Your description picks the engine. A circuit goes to the circuit grammar, a sequence to UML.
Validated server-side
Supported drawings are checked before they reach your canvas.
Editable by conversation
Ask for a change, get a new version. Go back any time and export your work.
Everything it draws
52 kinds, each drawn to its own standard.
Every sheet is a real render, shown whole at its own proportions. Hover to pause, or open a drawing to explore its examples. Charts, economics curves, chemical structures and freeform drawing round out the catalog.
Single-lineIEEE Std 315 + ANSI device numbering
CircuitIEEE Std 315 / ANSI Y32.2
P&IDANSI/ISA-5.1-2009 + ISO 10628-1:2014
Ladder logicIEC 61131-3 Ladder Diagram
Logic gatesIEEE Std 91/91a-1991
Function blockIEC 61131-3:2013 §6.4
SFC / GrafcetIEC 61131-3:2013 §6.5
Timing diagramElectrical & controls
Block diagramElectrical & controls
BreadboardElectrical & controls
Welding symbolsAWS A2.4:2020 · ISO 2553:2019
Sequence (UML)OMG UML 2.5.1 §17 (Interactions)
State machineOMG UML 2.5.1 · Harel statecharts
Class (UML)OMG UML 2.5.1 §9–§11
ER diagramChen / crow’s foot notation
BPMNOMG BPMN 2.0.2 / ISO/IEC 19510:2013
Use case (UML)OMG UML 2.5.1 §18
Network topologyCisco icon conventions
Threat model / DFDShostack, Threat Modeling (2014)
Git graphSoftware & systems
Petri netMurata 1989 + ISO/IEC 15909-1
Markov chainSoftware & systems
EPCARIS event-driven process chain
GenogramMcGoldrick, Gerson & Petry
PedigreeNSGC pedigree nomenclature
EcomapHartman (1978)
SociogramFamily & life science
Phylogenetic treeNewick tree format
Floor planArchitectural Graphic Standards
Site planBuildings & venues
Evacuation planISO 23601:2020
Stage plotBuildings & venues
PlaybookBuildings & venues
Fault treeNUREG-0492 Fault Tree Handbook
Bow-tieCCPS / Energy Institute
Event treeIEC 62502:2010
FMEAAIAG-VDA FMEA Handbook (2019)
Reliability blockIEC 61078:2016
Org chartBusiness & research
Entity structureBusiness & research
IDEF0FIPS PUB 183 (1993)
PERT / GanttPMI PMBOK 7 · precedence (AON)
PRISMA 2020PRISMA 2020 statement
FishboneIshikawa cause-and-effect
Causal loopBusiness & research
Decision treeBusiness & research
Decision matrixPugh concept selection
2×2 matrixBusiness & research
Venn / EulerBusiness & research
FlowchartEveryday
TimelineEveryday
Mind mapEverydayFree tools
One page per job.
Each opens the same editor with your request ready.
Pricing
Priced per credit, not per seat.
A free tier with the full engine catalog. Pro for the diagrams you actually ship.
Free
Kick the tires.
Up to 10 credits to try
$0 forever
No card needed
Start free- Free monthly credits
- All diagram engines
- Fast models
- Start from a photo or a PDF
- Export SVG, PNG and PDF
Recommended
Pro
For engineers, PMs and analysts.
500 AI credits a month
$15.9 / month
Billed monthly
Choose Pro- 500 AI credits a month
- Premium AI models
- SVG, PNG and PDF exports
- Priority support
Max
For power users and teams.
5,000 AI credits a month
$49.9 / month
Billed monthly
Choose Max- 5,000 AI credits a month, 10× Pro
- Everything in Pro
- Highest-volume generation and exports
- Priority support
Credits depend on the model you choose. Cancel any time from Settings.
FAQ
Common questions
What can it draw?
Electrical drawings, family and clinical diagrams, UML, floor plans, charts and more. Browse the type gallery to see real examples.
Can I start from a photo or a document?
Yes. Attach a photo or PDF alongside a description. CSV upload is not supported; paste chart values into your message.
Can I edit the result?
Yes. Describe a change in the conversation. Your previous versions stay available.
What can I export?
SVG, PNG and PDF.
Do I need an account?
A free account saves your diagrams and includes monthly credits. No card is needed to start.
What do you need to diagram this week?
A circuit, a sequence, a system. Describe it in the editor and choose what to change next.
Open the editor