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Text & content · ONLINE TOOL

Mermaid diagram builder

Create flowcharts, sequences, ERDs, Gantt charts, mind maps and timelines from text, with SVG/PNG export and optional local AI assistance.

Local processingNo account required
USE CASES

When to use Mermaid diagram builder?

Quickly create versionable diagrams from text syntax: processes, sequences, data models, schedules, mind maps or timelines.

  • Document a business process
  • Draw an application sequence
  • Create a simple Gantt or ER model for project documentation
CONCRETE EXAMPLE

Approval process

BEFORE
Steps described in an email
→
AFTER
Editable Mermaid source + preview + SVG/PNG export
PRIVACY

Your data stays in the browser

Processed content is not uploaded to WorkToolset. Required libraries may be loaded by the site, but the file stays in the browser.

GOOD TO KNOW

Limitations to know

  • Layout is automatic, so very complex diagrams may need simplification.
  • The local AI assistant is optional and its output must be reviewed before sharing.
HOW IT WORKS

A straightforward workflow.

  1. 1Prepare the required input and choose useful options.
  2. 2Review previews, warnings and limitations before export.
  3. 3Download a new copy or report: the original stays unchanged.
PRIVACY

Frequently asked questions

Are my files uploaded to WorkToolset?

No. This tool runs locally in your browser.

Is my original file modified?

No. WorkToolset creates a new copy or export.

Do I need an account?

No for this free tool. Accounts are mainly used for favorites, presets and future workflows.

RELATED TOOLS

Continue the same workflow

MDMarkdown editor & previewWrite Markdown, preview safe HTML rendering and export the content as .md or HTML.→ERDSQLite schema to ER diagramExplore SQLite tables and foreign keys, select a sub-schema, review links and export an editable Mermaid diagram plus CSV relationship inventory.→MEETMeeting minutes from transcriptTurn a transcript or notes into a summary, decisions, action items and open questions with Markdown, CSV and ICS exports.→FLOWCSV Workflow BuilderChain, reorder and save CSV cleaning steps without code, with preview before export.→
WORKTOOLSET ACCOUNT

Sign in

Access your favorites and presets across devices.

or with email

Your documents are not stored in your account.

 WORKTOOLSET PRO

When work needs verification, explanation or evidence, Pro takes over.

AUDITAudit & verificationScores · priorities · recommendations
≈Reconciliation & local AIAmbiguity · exceptions · sources
SAFEPrivacy & QAPreflight · accessibility · sharing
PDFEvidence & reportsSHA-256 · manifest · CSV · JSON · PDF
Scale afterwards, when neededAI Workbench with local content analysis, universal production queue, specialized batch processing, recipes, workflows, Studio sessions and projects remain included in Pro.
100 presets · 50 projects · 20 templates · 500 favorites

Payments, taxes and invoices are managed by Paddle. Your documents are never part of payment data.
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