# honzaap/Systemizer

A system design tool that allows you to simulate data flow of distributed systems.

Repository: https://github.com/honzaap/Systemizer
Canonical: https://ross.abutalabs.com/products/systemizer
Homepage: https://honzaap.github.io/Systemizer/
Language: TypeScript
License: GPL-3.0
License Family: copyleft
Topics: system-design, microservices, distributed-systems, microservices-architecture, web-development, scalability, backend, architecture, design-tool, database, server, data-flow, visualization
Last push: 2025-10-05T18:46:50+00:00

## Health v2 (maintenance only)
Score: 52/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 45, release rhythm 35, longevity 100
- inputs: {"age_days": 1955, "days_push": 332, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1460, forks 90 (observed 2026-08-28T04:04:47.210628+00:00)

## What it is
Systemizer is a browser-based system design tool for creating and simulating large-scale distributed systems. Users place components like APIs, clients, and message queues, connect them, and watch data flow through the system.

## Use cases
- simulate data flow in a distributed system
- design microservices architecture diagrams
- visualize how requests move through APIs and message queues
- prototype system design for interviews
- model scalable backend architectures
- teach distributed systems concepts interactively

## When to choose
- you want an interactive, visual way to design and simulate distributed system architectures
- you need to demo or teach how data flows between clients, APIs, queues, and servers
- you prefer a free, open-source, browser-based tool with no install required

## When to avoid
- you need production infrastructure-as-code or deployment output rather than simulation
- you require formal architecture validation, performance benchmarking, or load testing
- you need deep integrations with real cloud services or live system monitoring

## Facets
- artifact type: application
- maturity: active
- function: data-visualization, simulation, developer-tools, gui
- domain: microservices, developer-tools, web-development
- platform: browser
- tags: system-design, microservices, data-flow, diagramming, architecture-tool, architecture, web, typescript, nodejs

## Member repositories
- honzaap/Systemizer (main) score 52

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:47.210628+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:35:24.419238+00:00, confidence not recorded.
  - readme: https://github.com/honzaap/Systemizer (fetched 2026-08-28T04:04:47.210628+00:00, sha c45601a51adc)
  - homepage: https://honzaap.github.io/Systemizer/ (fetched 2026-08-29T11:44:26.036883+00:00, sha 46b1077a051f)
- Data as of 2026-08-30T08:39:29.467469+00:00.