Free tools

Free tools: turn code into editable diagrams

Paste Kubernetes, Docker Compose, Terraform, CloudFormation, SQL, Prisma, DBML, GitHub Actions, GitLab CI, or Mermaid code. The format is detected for you, and you get a diagram you can download or open in Archboard to keep editing.

Example outputs

Terraform
SQL
GitHub Actions

Tools by format

Each tool has its own page that explains what it reads, what it draws and what it leaves out.

Containers

Kubernetes YAML to diagram
Turns manifests or kubectl get -o yaml output into namespaces, workloads and Services, connected the way the YAML wires them.
- *.yaml
- kubectl get -o yaml
- helm template
Docker Compose to diagram
Turns a docker-compose.yml into services, networks, volumes and depends_on links.
- compose.yaml
- docker-compose.yml

Infrastructure

Terraform to diagram
Turns .tf files or plan JSON into VPCs, subnets and resources with their references.
- *.tf
- terraform show -json
CloudFormation to diagram
Turns YAML or JSON templates, SAM included, into resources linked by Ref and GetAtt.
- template.yaml
- template.json
- sam build
- cdk synth

Databases

SQL to ER diagram
Turns CREATE TABLE statements or a dump into tables, keys and foreign keys, and detects the dialect.
- CREATE TABLE
- ALTER TABLE
PostgreSQL to ER diagram
Turns pg_dump --schema-only output into tables, schemas and foreign keys.
- pg_dump --schema-only
MySQL and MariaDB to ER diagram
Turns mysqldump and Workbench scripts into tables and foreign keys, MariaDB included.
- mysqldump --no-data
SQL Server to ER diagram
Turns T-SQL scripts from SSMS into tables, keys and foreign keys.
- T-SQL
- GO
SQLite to ER diagram
Turns sqlite3 .schema output into tables and foreign keys.
- sqlite3 .schema
Prisma schema to ER diagram
Turns a schema.prisma into models and relations, implicit many-to-many included.
- schema.prisma
DBML to ER diagram
Turns DBML into tables, refs and table groups.
- Table
- Ref

CI pipelines

GitHub Actions visualizer
Turns a workflow file into triggers, jobs, needs and environments.
- .github/workflows/*.yml
GitLab CI visualizer
Turns a .gitlab-ci.yml into stage columns, jobs, needs and child pipelines.
- .gitlab-ci.yml

Diagram code

Mermaid flowchart to editable diagram
Turns a flowchart or erDiagram into shapes you can drag and edit.
- flowchart
- erDiagram

How it works

Paste your code
Paste the contents of a file or drop the file on the box. The tool recognizes the format; you can also pick it yourself.
See the diagram
Resources, tables or jobs become cards, grouped in frames and connected the way your code wires them.
Download it or open it in Archboard
Download an SVG or PNG with an Archboard watermark, or open the diagram in Archboard to rearrange, annotate, share and export it.

Questions

Are the tools free?

Yes. Pasting code, viewing the diagram and downloading it as SVG or PNG need no account. Opening it in Archboard needs a free account.

What happens when I open a diagram in Archboard?

The diagram you see is saved as a new diagram in your workspace, where you can rearrange it, add notes, share it or export it. It’s a starting point: later changes to your code don’t update the diagram.

Which formats can I paste?

Kubernetes, Docker Compose, Terraform, CloudFormation, SQL, Prisma, DBML, GitHub Actions, GitLab CI, and Mermaid. The tool cards on this page list the files and commands each tool reads, and each tool’s page explains what it leaves out.

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