rediagram .app

Free account · 20 credits a draw

AI diagram generator

Describe a system, a process or an architecture in a sentence and get a real diagram back — on your brand, in whichever of the 53 types fits, exported as SVG, PNG or editable PowerPoint.

Or drop one you already have

.dgm · .vsdx · .tldraw · .drawio · .excalidraw · .mermaid
up to 8 MB · nothing is stored

A screenshot works too — PNG, JPEG or WebP, read by a model rather than parsed. On the paid plans.

Needs an account
Sign in to draw it

Free account · converting a file needs none

Your file is read once to draw the diagram and is never stored. Converting turns on anonymous usage analytics — we never send your file, its contents or your brand URL. What we measure

What you type, and what comes back

Drawn by this pipeline, not picked to flatter it. The description above each one is the whole input.

“Ingest with NiFi writes to an S3 object store; Trino queries it and Superset serves dashboards.”

Data platform 4 nodes, 3 connections. ARCHITECTURE Data platform WRITES READS SERVES 01 Ingest NiFi Object store S3 03 Query Trino 04 Dashboards Superset Service Focal Call / query Primary flow

architecture · 4 shapes →

“An invoice arrives; over 5,000 goes to manual review, otherwise auto-approve; both end posted.”

Invoice approval 5 nodes, 5 connections. FLOWCHART Invoice approval NO YES Received Over 5,000? Auto-approve Manual review Posted Start / end Branch Service Primary flow

flowchart · 5 shapes →

“Who does what: the customer files a ticket, an agent triages it, engineering fixes it, the agent replies. One lane per party.”

Support triage 4 nodes, 3 connections. SWIMLANE Support triage CUSTOMER AGENT ENGINEERING 01 Ticket in 02 Triage 03 Fix 04 Reply

swimlane · 4 shapes →

All 53 types, one worked example each →

Why these come out different

Most text-to-diagram tools hand the whole job to the model: it decides the content and draws the picture. That is why their output has a look, why the same description gives you a different diagram each time, and why a large one quietly loses boxes — the drawing is done against a fixed ladder, and what will not fit is dropped.

Here the model does one job — turning your sentence into structure — and our own layout engine draws it. So an architecture diagram with sixty services keeps sixty services, the same description gives the same diagram every time, and what comes out looks like the rest of your documents rather than like something that was generated.

No node limit
Nothing is dropped to make a diagram fit. A subnet missing from a network diagram is not a simpler diagram, it is a wrong one.
Same input, same output
Everything after the one model call is deterministic, so a diagram going into a document under review does not change under it.
Editable when it lands
PowerPoint export carries real shapes and live text. Correct a label in the deck without coming back here.

Already have the diagram? Converting one is free and needs no account →

Questions people actually ask

What do I type?
A sentence or two of plain description — who does what, in what order, and what talks to what. Naming the arrangement you want ("one row per team", "left to right by stage") is the single thing that most changes the result, because it is the part a description usually leaves out.
Will it drop parts of a big diagram?
No. The model is only asked to turn your sentence into structure; the drawing is done by our own layout engine, which has no node limit. Generators that redraw with the model itself work against a fixed ladder and quietly drop what will not fit — on a network or a process that is not a simpler diagram, it is a wrong one.
Do I get the same diagram twice from the same description?
Yes. Everything after the one model call is deterministic, so re-running a description gives the identical drawing. That matters when the diagram is going into a document somebody reviews.
Can I change what comes back?
Click any shape to correct its type or colour, restyle the whole thing against your brand, and export to PowerPoint as real editable shapes with live text — not a picture you cannot fix a typo in.
Is it free?
Converting a diagram you already have is free and needs no account. Drawing one from a description costs us a model call per press, so it needs a free account and spends 20 credits from the monthly allowance.