You want Mermaid as the source of truth, broad diagram coverage, code imports, AI generation, and a visual workspace around the same file.
Turn a prompt into an editable Mermaid diagram, inspect every line, and move between structured diagrams, a whiteboard, and Markdown docs.
No card collected at signup. Public examples and docs stay open.
flowchart TD
brief([Product brief]) --> plan[Plan sprint]
plan --> build[[Build release]]
build --> tests{Quality gates pass?}
tests -- No --> fix[Fix & retest]
fix --> tests
tests -- Yes --> ship([Deploy])Choose a path, inspect the rendered example here, and take the Mermaid source into Studio when you are ready.
Make architecture, sequence, ER, and deployment flows reviewable beside the code they describe.
View a microservices example Product & operationsTurn a process into a flowchart, then refine the words and branches without redrawing the whole canvas.
View a workflow example DocumentationUse public guides and Markdown with rendered Mermaid blocks to make technical ideas easier to follow.
Read public docs — no sign-inDiagraFlow keeps the generated result inspectable and gives each stage of diagram work a focused surface.
Edit Mermaid source with a live rendered preview, across the twenty diagram types shown below.
Sketch with shapes, arrows, sticky notes, and pan and zoom when the structure is still taking shape.
Describe the system in plain language, then inspect and change the Mermaid it produces.
Keep notes beside diagrams, with fenced ```mermaid blocks rendered inline.
Auto-snapshots on your device let you inspect and restore earlier work.
Export PNG, SVG, PDF, Markdown, or raw .mmd from the client.
New diagrams start in your Personal scope. You choose when to move work into the current workspace, and portable source and exports keep the work usable outside DiagraFlow.
Read the public privacy policyExplore twenty rendered examples here without an account, then open the Mermaid source in Studio.
A release workflow with decisions and recovery paths.
Checked against each product's official pricing and documentation on . “Not stated” means we found no comparable published allowance—not that the feature is absent.
| Capability | DiagraFlow | Eraser.io | Whimsical | Lucidchart | Excalidraw |
|---|---|---|---|---|---|
| Published individual price | $12/user/mo annual $15 monthly | $15/member/mo annual $20 monthly | $10/editor/mo annual $12 monthly | $9/month + tax | Free open-source editor |
| Published free access | 14-day full trial | Free: 3 files | Free: 3 team boards | Free: 3 editable docs, 60 shapes/doc | Free hosted editor |
| Published included AI allowance | 100/30 days Personal 500/seat Team, pooled | 3 Free · 40 Starter 250 Business | Official pages conflict: 10/user or 20/workspace; paid add-ons | Not stated on cited pricing page | Not stated |
| Real-time collaboration | Yes | Yes | Yes | Yes | Yes, end-to-end encrypted |
| Published version history | 90 days Personal 365 days Team | 7 days Free · 90 Starter Unlimited Business | 7 days Free · 90 Pro Unlimited Business | Revision history available; plan limit not stated in cited page | Local undo/redo; no hosted history claim |
| Document/board exports | PNG · SVG · PDF · Markdown · Mermaid | PNG · SVG · PDF · Markdown | PNG · PDF · copy SVG Markdown for Docs · Mermaid for supported diagrams | Multiple formats; Visio import/export on Individual | PNG · SVG · .excalidraw JSON |
| GitHub connection | Load and push .mmd with PAT | Commit Markdown and diagrams | GitHub backlinks | Not claimed in cited product page | Community integrations; not a hosted-editor claim |
| Offline/local-first claim | PWA with local fallback | Not stated on cited pricing page | Not stated on cited pricing page | Cloud-based product | PWA, offline and local-first |
| Published code-native diagram scope | 20 Mermaid diagram types with live source + preview | 4 Eraser DSL types: flow, ERD, cloud architecture, sequence | Mermaid import/export for flowcharts and sequence diagrams | Comparable Mermaid source scope not stated in cited docs | Freeform canvas; Mermaid is not its primary editor |
| Published MCP access | Create, read and update diagrams through DiagraFlow MCP | Remote and local MCP | Remote and desktop MCP | Lucid MCP server | Not stated in official repository |
| Code/data-to-diagram inputs | SQL · OpenAPI · Terraform · package manifests · images | Natural language or code snippets | Mermaid, Markdown docs, text mind maps and images | Visio, Draw.io, Gliffy, OmniGraffle, CSV and spreadsheets | Images and .excalidraw JSON |
| Work surfaces in the product | Diagram source editor · whiteboard · visual Markdown docs | Canvas + Markdown note editor | Boards + docs + wireframes | Lucidchart diagrams; Lucidspark collaboration | Freeform whiteboard |
You want Mermaid as the source of truth, broad diagram coverage, code imports, AI generation, and a visual workspace around the same file.
Your priority is unrestricted manual placement, workshop facilitation, or freehand sketching rather than maintaining diagram source.
Keep the Mermaid source and export PNG, SVG, PDF, or Markdown. Your diagrams remain portable even if your workflow changes.
Official sources: DiagraFlow pricing · Eraser pricing · Eraser diagram types · Eraser MCP · Whimsical pricing · Whimsical AI limits · Whimsical exports · Whimsical Mermaid scope · Whimsical MCP · Lucidchart plans · Lucidchart features · Lucid MCP · Excalidraw official repository.