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Draw your first P&ID

Start with a guest drawing or sign in to keep your work. Then place the equipment, connect the process and export the finished sheet.

Setup Nothing to installDevice Computer or tabletReading time 5 min
On this page
  1. Choose how to start
  2. Create a drawing
  3. Place and tag symbols
  4. Connect the process
  5. Edit and check
  6. Keep or export it
  7. Quick fixes

Choose how to start #

You can try the editor before making an account. Choose the option that fits what you need today.

Guest drawingStart immediately with one drawing. It is kept for 24 hours after your last edit, and you can export it without signing in.
Sign inKeep drawings in your workspace, organise them into projects and create read-only share links. The Free plan keeps up to five drawings.
Start as a guest, sign in later

When you sign in or create an account in the same browser, your guest drawing moves into that account as long as the account has room for it.

Create a drawing #

  1. Open the editor. You arrive in the workspace as a guest unless you are already signed in.
  2. Choose New drawing. Give the process a name, then create it.
  3. Use a computer or tablet. The canvas needs room for the symbol library, sheet and properties panel, so smartphone layouts are not supported yet.

Place and tag symbols #

  1. Choose Add symbol in the Draw tab.
  2. Drag equipment, instruments or valves from the symbol library onto the sheet. You can also select a symbol and use Place at center.
  3. Give the symbol its tag. Instruments use letters and a loop number, such as FT-101. Select any placed symbol to edit its tag and other properties.
  4. Move or transform it if needed. Use Select to drag, rotate, flip, group or lock the current selection.

The editor follows ANSI/ISA-5.1-2022 dimensions and works out symbol sizes and nozzle positions for you.

Connect the process #

  1. Choose Connect in the Draw tab and select the line type: process, impulse, pneumatic, electrical or another signal type.
  2. Pick a port on the first symbol, then a port on the second. The editor routes the line between them.
  3. Select a line to adjust it. Drag an endpoint to reconnect it, drag a segment to change its route, or use Reverse flow for process lines.
  4. Use Re-route pipes or Straighten when you want the engine to tidy the sheet.

Edit and check #

Properties Right panel

Tag and state
Edit equipment labels, instrument tags, valve actuators, normal state and fail position.
Engineering data
Add service, size, specification, material, rating, pressure, temperature and custom properties.
Line groups
Give related process segments one shared line number and engineering record.

Engineering Ribbon tab

Validate
Run the full project check, then select an issue to jump to the affected object.
Issues
Show the issue list and canvas markers while you correct the sheet.

Keep or export it #

If you are drawing as a guest

Your drawing is kept for one day after the last edit. Choose Export to download SVG, PNG or JPG without an account. Choose Save or Share when you are ready to sign in and keep the drawing.

If you are signed in

Your edits stay in your workspace. Use projects to group related drawings. Share creates a read-only snapshot; later edits remain private until you refresh that share link.

Do not leave guest work behind

Sign in or download the drawing before its 24-hour window ends.

Quick fixes #

A line will not connect

Check that you selected a compatible line type and started from a visible port. Process lines connect process ports; signal lines connect signal-capable ports.

A guest drawing is about to expire

Use Export to download it now, or choose Save and sign in. Signing in from the same browser moves the guest drawing into the account when quota is available.

A shared link does not show recent edits

Open Share and choose Refresh. Share links are read-only snapshots, so changes are not published automatically.

The editor will not open on a phone

Open the drawing on a computer or tablet. The editor deliberately requires enough room for the library, canvas and properties panel.