Real component library
Resistors with color bands worked out from their value, ceramic and electrolytic capacitors, inductors, diodes, colored LEDs, transistors, MOSFETs, potentiometers and header pins.
Free · Open source · No sign-up
Plan your perfboard circuit before you solder
Perfboard Designer is an online layout tool for perfboard (protoboard) projects. Place resistors, capacitors, LEDs, transistors, ICs and wires on a virtual hole grid, see how everything fits, and catch mistakes before they cost you a desoldering session.
Runs in your browser. Nothing to install, nothing uploaded.
Everything you need to lay out a perfboard
Made for makers, students and hobbyists who want a plan before picking up the soldering iron.
ICs and custom chips
Drop in an NE555 timer, DIP-14 and DIP-16 logic chips, an ATmega328P or an Arduino Nano, or build your own chip with labeled pins and edit it later.
Wires the way you solder them
Draw jumper wires in any color and three thicknesses. Straight runs of the same color merge into a single wire automatically.
Any board size
Start from a preset or set your own grid size to match the board on your bench, then zoom, pan and go fullscreen while you work.
Save, share and export
Keep your progress in the browser, download the design as a project file to share or reopen later, or export the board as a PNG image.
Fast to work with
Undo and redo, keyboard shortcuts, notes on any hole, and part values shown right on the board.
How it works
-
Pick your board
Choose a preset or enter the number of holes across and down to match your perfboard.
-
Place parts and wires
Click to drop components onto the holes, rotate chips, and draw wires between pins.
-
Save it and build it
Save the project file, export an image to keep next to your soldering iron, and build with confidence.
Frequently asked questions
Is Perfboard Designer free?
Yes. It's completely free and open source, with no account, ads or limits.
Do I need to install anything?
No. It runs in any modern web browser. It works best on a desktop or laptop with a mouse.
Where are my designs saved?
On your own device. "Save Progress" keeps your work in this browser, and "Save Project" downloads a project file you can reopen or share later. Nothing is uploaded to a server.
Can I add a chip that isn't in the list?
Yes. The custom IC editor lets you set the size and label every pin, and you can edit a custom chip again after creating it.
Does it simulate or check my circuit?
No. Perfboard Designer is a layout planner: it helps you work out where parts and wires go on the board. It doesn't simulate circuits or check them electrically.
Can I contribute?
Please do! Bug reports, ideas and pull requests are welcome on GitHub. See the contributors who already helped.
Ready to plan your next build?
Open the designer and lay out your first board in a few minutes.
Open the designer →