Head-to-head comparison
| Feature | flow-chart.io | Eraser |
|---|---|---|
| Diagram creation | Plain-language description → AI generates | Code, Markdown, or DiagramScript → AI generates |
| AI generation | 17 specialist domains with notation enforcement | Code-to-diagram, sequence, ERD, cloud from code |
| BPMN 2.0 standard | Enforced — proper pools, gateways, events | Not supported |
| C4 model | All 4 zoom levels with standard enforcement | Not supported |
| Threat modeling (STRIDE) | Supported with trust boundaries and DFDs | Not supported |
| Code sync | Not available — describe intent in plain language | GitHub sync — diagram updates when code changes |
| Standards audit | Built-in — flags notation violations before export | No standards audit |
| Editor | Visual scene-graph editor, every element editable | Notion-like document with embedded diagrams |
| Free plan | AI credits/month, no credit card required | Limited free tier |
| Pricing | $19/month flat (individual) | Per-user team pricing |
| Export formats | SVG, PNG 2×/4×, PDF, JSON, Mermaid | PNG, SVG, Markdown embed |
Where flow-chart.io is the stronger choice
- 17 diagram domains with standard enforcement — BPMN 2.0, C4, UML, ERD, STRIDE, cloud architecture (AWS/GCP/Azure with real icons), DevOps pipelines, and more.
- Business and process diagrams that Eraser doesn't cover: swimlane, value stream mapping, org charts, RACI, Gantt.
- Built-in compliance audit flags notation errors before delivery — no manual review needed.
- Plain-language input — describe the diagram you need the way you'd explain it to a colleague. No code required.
- Every element is editable after generation — move nodes, rename labels, reroute connectors, change styles.
Where Eraser is still ahead
- Code-to-diagram sync: diagrams regenerate automatically when the linked code changes — flow-chart.io has no code parsing.
- GitHub integration: diagram files live in the repo alongside code, updated via pull requests.
- Notion-like document editor: mix prose, code blocks, and diagrams in a single document.
- DiagramScript: a lightweight text language for quickly sketching architectures if you prefer code over natural language.
Supported diagram domains
BPMN 2.0C4 modelUML class / sequence / state / activityERD / data modelingSTRIDE threat modelNIST CSFCloud architecture (AWS / GCP / Azure)DevOps pipelineAI/ML pipelineNetwork topologyOrg chartValue stream mappingSwimlane / cross-functionalGantt chart
Frequently asked questions
- What is a good alternative to Eraser for technical diagrams?
- flow-chart.io is an AI-native alternative to Eraser for teams that need domain-specific diagram standards. Where Eraser specializes in code-to-diagram generation with GitHub sync, flow-chart.io generates 17 diagram domains from plain-language descriptions — BPMN 2.0, C4 model, STRIDE threat models, UML, cloud architecture with real provider icons, and DevOps pipelines — and enforces notation standards on every output.
- How does flow-chart.io compare to Eraser for architecture diagrams?
- Both generate architecture diagrams from text. Eraser generates from code and syncs diagrams back to a GitHub repo. flow-chart.io generates from plain-language descriptions and enforces domain standards — C4 model zoom levels, STRIDE threat boundaries, NIST CSF layers. The output is a typed, editable scene graph you can continue editing without re-generating from code.
- Does flow-chart.io generate diagrams from code like Eraser?
- flow-chart.io generates from plain-language descriptions, not source code. Describe the components, interactions, and relationships in natural language and the AI produces the diagram. It does not parse code files or maintain sync between a codebase and diagram.
- Is flow-chart.io cheaper than Eraser?
- flow-chart.io's Pro plan is $19/month flat for individual users. Eraser's Team pricing is per-user. flow-chart.io's free plan includes AI diagram credits each month at no cost, no credit card required.
- Does flow-chart.io support BPMN and compliance diagrams that Eraser doesn't?
- Yes. flow-chart.io enforces BPMN 2.0 notation (pools, lanes, correct gateway types, intermediate events), C4 model zoom levels, UML 2.5.1 conventions, ERD cardinality notation, and STRIDE threat boundaries. Eraser focuses on engineering diagrams — sequence, ERD, cloud — without strict notation enforcement.
- What export formats does flow-chart.io support?
- SVG (vector), PNG at 2× and 4× resolution, PDF (print-ready), JSON (full typed scene graph for re-import), and Mermaid (.mmd). Eraser exports to PNG, SVG, and embeds diagrams as Markdown images synced to GitHub.