Professional Process Diagrams

Draw industrial flowcharts with ease

PfdLabs gives engineers and process designers a powerful yet simple tool to create professional process flow diagrams with an industrial symbol library.

✓ Free forever · No credit card required · 5 diagrams included
My Flowchart — PfdLabs
Start Process Data collect and prepare Valid? check input no Error / Retry fix and resubmit retry yes Success export result Done
Features
Everything you need to create professional diagrams
Powerful tools and a clean interface to turn your ideas into clear, shareable flowcharts.
⚡
Drag & Drop Editor
Arrange shapes visually. No design experience needed — drag, drop, and connect in seconds.
🏭
Industrial Symbol Library
36 isometric 3D symbols across 5 categories — crushers, mills, flotation cells, pumps and more.
🖼
Image Upload
Upload images directly onto the canvas. Rotate, resize, and position them freely.
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4 Edge Styles
Straight, smooth, angled, or curved connections — choose per edge with custom labels.
✏️
Fully Editable
Edit colours, labels, sizes, borders, font size, and rotation on every element.
↓
Export PNG & SVG
Export your diagrams as PNG or SVG, or save and load files to continue later.
Pricing
Simple, transparent pricing
Free
€0 / forever
Perfect for personal use and trying things out.
  • Up to 5 diagrams
  • All shapes + image upload
  • Industrial symbol library
  • PNG & SVG export
  • Save / Load files
  • PDF export
  • Custom branding
  • Cloud sync
MOST POPULAR
Pro
€3 / month
For professionals and teams who need more.
  • Unlimited diagrams
  • All shapes + image upload
  • Industrial symbol library
  • PNG & SVG export
  • Save / Load files
  • PDF export
  • Custom branding
  • Cloud sync + priority support
Testimonials
Loved by engineers and teams
★★★★★
"PfdLabs transformed how we document our mineral processing circuits. Intuitive and the industrial symbols save us hours."
Martin Kovac
Process Engineer
★★★★★
"Finally a flowchart tool that understands what a hydrocyclone is. Export quality is excellent for reports."
Sarah Williams
Metallurgist
★★★★☆
"We use PfdLabs for all our plant design documentation. Upgraded to Pro and never looked back."
James O'Brien
Plant Manager
FAQ
Frequently asked questions
Yes — PfdLabs has a free plan that includes up to 5 diagrams, all shapes, the industrial symbol library, and PNG & SVG export. No credit card required.
The Free plan gives you up to 5 diagrams with core features. Pro (€3/month) adds unlimited diagrams, PDF export, custom branding on exports, cloud sync and priority support.
Free users can create a total of 5 diagrams. This is a lifetime limit — deleting diagrams does not reset the count. Upgrade to Pro for unlimited diagrams.
Yes. You can cancel your subscription at any time from your Dashboard → Manage Billing. You will keep Pro access until the end of your current billing period.
All users can export PNG and SVG. Pro users can also export PDF. You can also save and load diagrams as JSON files locally — this is unlimited for all users.
Yes. All data is transmitted over HTTPS and stored securely in our database. We do not share your diagrams with anyone. You can also save diagrams as local files for offline backup.
No installation needed. PfdLabs runs entirely in your web browser. It works on Chrome, Firefox, Edge and Safari on desktop. No plugins or downloads required.
You can export your diagram as PNG, SVG or PDF and share the file. Direct link sharing and real-time collaboration are planned features for a future Pro update.
PfdLabs includes 35 isometric 3D symbols across 5 categories: Comminution (crushers, mills), Classification (screens, cyclones), Separation (flotation, thickeners), Hydromet (tanks, filters, columns) and Transport (pumps, conveyors, elevators).

Ready to create your first diagram?

Join engineers and process designers creating professional flowcharts with PfdLabs.