ARCSYNC.DEV / 2026.06.10

parser online

Your live infrastructure map, synced from source.

Point ArcSync at a Terraform or CloudFormation repo and get a live, editable architecture diagram. No more screenshots in Figma. No more drift.

Connect a repo See an example diagram

main.tf

1resource "aws_lambda_function" "api" {

2 runtime = "nodejs20.x"

3 handler = "index.handler"

5resource "aws_s3_bucket" "assets" {

6 bucket = "prod-assets"

8resource "aws_dynamodb_table" "sessions" {

9 hash_key = "id"

10}

PARSED · 0.41s

— Features

Built like the systems it diagrams.

Six guarantees. None of them are about "AI insights" or "intelligent suggestions" — every one of them is a parse step you can read, audit, and override.

// 01

Native to the source.

Reads HCL and CFN as-is — no IR, no proprietary DSL, no manual mapping. If terraform plan works, ArcSync works.

// 02

Layout overrides that survive.

Move a node, the layout sticks across re-parses. Your diagram stays yours — even when the source changes.

// 03

Time-travel built in.

Every commit is a diagram. Scrub through PRs to see how your architecture evolved — or what your reviewer is actually proposing.

// 04

Cursors and presence.

Two engineers, one diagram, one source of truth. Live cursors and presence — pinned to the resource, not the pixel.

// 05

Drift detection on PR.

The GitHub Action posts a diff diagram on every PR. Reviewers see exactly which resources changed, in which direction, and why.

// 06

AWS, GCP, Azure.

Official architecture icons for 60+ services. Custom resources fall back to type-color tokens — never to a generic box.

— Coverage

Parse the stack you already have.

Three engines, six SDKs. Static analysis only — no execution, no cloud credentials. Re-parse runs incrementally on push.

— ENGINE / 01

Terraform

HCL parsed natively — modules, variables, locals, and remote-state references resolved before render.

— Extensions .tf.tf.json.tfvars

— ENGINE / 02

CloudFormation

YAML and JSON templates, plus SAM and CDK-synthesized output. Cross-stack !ImportValue resolved across the workspace.

— Extensions .yaml.yml.json.template

— ENGINE / 03

AWS CDK

Static analysis only. We run cdk synth in a per-language sandbox — your code is never executed in your account.

— SDKs TSJSPYGOJAVAC#

AWS CDK · supported languages

Static analysis only — your code is never executed. — REF / CDK-SDK-MATRIX

TypeScript .ts

JavaScript .js

Python .py

Go .go

Java .java

C# .cs

— Sample input · Terraform

resource "aws_lambda_function" "parser" {
  function_name = "parser-fn"
  runtime       = "nodejs22.x"
  handler       = "index.handler"
  role          = aws_iam_role.parser.arn
}

resource "aws_dynamodb_table" "diagrams" {
  name         = "diagrams"
  billing_mode = "PAY_PER_REQUEST"
  hash_key     = "id"
  attribute {
    name = "id"
    type = "S"
  }
}

resource "aws_apigatewayv2_api" "http" {
  name          = "arcsync-api"
  protocol_type = "HTTP"
  target        = aws_lambda_function.parser.arn
}

ArcSync resolves IAM and integration references and renders a three-node, two-edge diagram from the snippet above.

— Plans

Simple pricing. Real value at every tier.

PLAN_FREE

Free

300 parses/month
20 diagrams
Public + private repos

PLAN_PRO · MOST

Pro

$19 /mo $190 /yr

300 parses/month
100 diagrams
Auto-refresh on merge
Time-travel scrubber
14-day free trial

Start 14-day trial

PLAN_TEAM

Team

$49 /user/mo

3-seat minimum
Pooled parses
Shared workspace (soon)

Contact sales

PLAN_ENTERPRISE

Enterprise

Custom

SSO + audit logs
SLA
On-prem deployment

Contact sales

CTA / CONNECT_REPO

— Get started

Point us at a repo. Get a graph back.

Free for any public Terraform or CloudFormation repo. No credit card. The diagram is editable, shareable, and stays synced as long as the repo is public.

Or run locally: npx @auto-arch-diagram/cli ./infra