Describe a system and get an editable diagram in Mermaid, D2, Excalidraw, Draw.io or PlantUML. Keep it as text in your Git repository, record the decisions behind it, and share it with your team.
Free to start · No credit card · Use your own AI key · Diagrams stay as text you own
From prompt to production-grade diagram in seconds
Describe your architecture in plain English — AI generates production-grade Mermaid code instantly.
Create a microservices architecture with API gateway, 3 services, and a shared database
Git-native storage, AI-first workflows, and lightweight delivery tracking in one platform.
Our AI writes the Mermaid for you and renders it instantly. Refine it by chatting, or change only the style and keep the structure.
Start from a template or a sentence, then get to a clean diagram fast.
Pre-built starting points for AWS, Azure, GCP, Databricks, Snowflake, TOGAF and more.
Context, Container, Component and Code diagrams with drill-down navigation.
Chat with an assistant that knows TOGAF, C4, security patterns and enterprise architecture.
Click a node to jump to its code. Place your cursor in code to highlight the node.
Edit with your team, then walk stakeholders through the result.
See teammates' cursors, sync changes instantly and resolve conflicts automatically.
AI speaker notes, teleprompter, audience targeting and a timer.
Public share links plus SVG and PNG export. Draw.io and Visio export on Pro and above.
Header and panels hide themselves so you can focus on the architecture.
Diagrams live next to the code and docs they describe.
Push diagrams to repos, batch-sync folders and open pull requests from the editor.
Export to Drive and import from your Drive files to keep architecture docs in one place.
Planned: scan your repo for diagram files and flag diagrams that fall behind when PRs change code. Today, Git Sync pushes and pulls diagrams and ADRs.
Initiatives, ADRs, MVP slices, RAID logs and handoff packs, all linked to your diagrams.
Architecture diagram tool for solution architects, engineering managers & data architects
AI proposes diagrams and ADRs. You refine. Your team consumes. Architecture that evolves with code — stable, never spaghetti.
Design systems that scale
The Pain
Architecture diagrams live in a wiki, drift from the system, and are out of date by the time you publish them.
With Archgram
AI drafts your C4 Context diagram in seconds. The ELK layout engine keeps the view stable when you add a service, and Git sync keeps the diagram file in your repository next to the code.
Model pipelines visually
The Pain
Your Snowflake-to-Databricks lineage diagram has dozens of nodes, and most tools turn it into a tangle of crossing lines.
With Archgram
The ELK engine merges parallel edges to cut visual clutter and keeps the pipeline flowing in one direction, and your layout is remembered between sessions.
Understand systems instantly
The Pain
You need to explain the system architecture in sprint demos, but the diagram the team shared looks like abstract art.
With Archgram
The Architect curates a clean, presentation-ready diagram. AI generates speaker notes tailored to your audience (CxO, dev team, or stakeholders). One-click Presenter View with timer.
Keep architecture living
The Pain
Architecture decisions are buried in chat threads, diagrams go stale, and nobody is sure of the current state of the system.
With Archgram
Git Sync keeps diagram files and ADRs in your repo, next to the code, and opens pull requests for changes. Repo scanning and PR-driven freshness checks are coming next.
AI generates architecture suggestions directly inside your team chat. But unlike fully automated tools, no AI change touches your diagram until a human approves it. Think of it like a Pull Request for diagrams: AI proposes, your team reviews, and only approved changes get applied.
The AI Architect Co-Pilot suggests improvements, new components, or security layers — all inside the team chat.
Team members approve or reject each suggestion with one click. No changes are applied without explicit human approval.
Only approved suggestions are applied to the diagram. Full audit trail of who approved what and when.
AI generates a first-draft diagram from your codebase or prompt.
Prune nodes, stabilize layouts, add decision records.
POs see curated diagrams in wikis and sprint demos.
Code changes. Diagrams stay stable. Only new components highlighted.
Your diagram becomes a living delivery artifact. Track decisions, scope, risks, and milestones — all Git-synced and linked to your architecture.
From intake to release — every phase is tracked, collaborative, and linked to your architecture.
Problem, KPIs, roles
ADRs & trade-offs
MVP slices & AC
Workstreams & deps
Risks & blockers
Export & release
Pre-built reference architectures for AWS, Azure, GCP, Databricks, Snowflake, and enterprise frameworks.
Click to open in editor
Click to open in editor
Click to open in editor
Click to open in editor
Click to open in editor
Click to open in editor
Click to open in editor
Click to open in editor
Start free, scale as your architecture grows.
For individuals exploring architecture diagramming.
For people who need more room and AI.
For teams building and maintaining complex systems.
For organisations with larger scale and review needs.
On the roadmap, not available yet: SSO / SAML, Audit logs, Uptime SLA. Tell us if you need them.
Deep dives on C4 models, diagrams-as-code, and AI-assisted architecture documentation.
Build a login flow step by step: branches, activations, notes and asynchronous messages
How picture-to-diagram works, how to take a photo that converts well, and how to check the result
A five-part template, five habits that keep ADRs useful, and how to tie them to your diagrams
No installation. No signup required to try. Generate your first AI architecture diagram free.
Honest comparisons, including when the other tool is the better choice.
Archgram and Draw.io compared: a free drag-and-drop canvas versus text-first diagrams with AI, Git sync and ADRs. Archgram also opens and exports .drawio files.
Read the comparisonArchgram uses Mermaid and adds D2, PlantUML, Draw.io and Excalidraw, AI generation, conversion between formats, Git sync and team workspaces.
Read the comparisonVisual collaboration canvases versus diagrams-as-code with AI, Git sync, ADRs and delivery tracking for engineering teams.
Read the comparisonPlantUML is the long-established text language for UML. Archgram edits PlantUML in the browser and adds Mermaid, D2, conversion between formats, AI drafting and Git sync.
Read the comparisonExcalidraw is a free hand-drawn whiteboard. Archgram includes an Excalidraw editor and adds text diagrams, AI drafting, conversion from Mermaid, Git sync and decision records.
Read the comparisonEverything you need to know about Archgram.io