Open PcbLib files in your browser
The footprints Altium Designer places parts with, shared by part makers and libraries online. Open a library right here and flip through every footprint, with no CAD app. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
Your board opens as it's made, from the top and from below, with its polygons as Altium last poured them, a schematic sheet by sheet in Altium's colors, and a library a footprint or symbol at a time.
- Every layer • Hide one or show one alone
- A board's top and, mirrored beside it, its bottom
- Search its text • Designators, values and net labels
- Export • PNG, SVG, PDF and the bill of materials
About PcbLib
A footprint is the copper and the outline a part leaves on a board: its pads, the silkscreen around it and its courtyard. Altium has kept them in .PcbLib libraries since Protel DXP in 2002, and part makers and library sites hand them out by the thousand.
A PcbLib is a Compound File with a storage for each footprint, named after it, holding its pads, tracks, arcs, regions and texts on the board's layers, its 3D bodies and its parameters, and a list of the footprints at its head.
Filepeek reads it in your browser and lists every footprint by its name, each opening as a page of its own. A footprint shows its layers each in its own color, mask and paste hidden at first, Measure gives distances between pads in millimeters, Show details gives its size and description, and Export saves PNG, SVG or PDF.
Altium footprint library
.pcblib
Format
- MIME type
- application/octet-stream
- Made by
- Altium, which began as Protel
- Released
- 2002
Inside the file
- Holds
- Footprints, each in a storage of its own
- Footprints
- Pads, silkscreen, courtyard and 3D bodies
- Placed by
- Altium's components on a .PcbDoc board
- File
- A Compound File
Opens in every browser
Filepeek opens Altium footprint libraries in Chrome, Edge, Firefox and Safari. On their own, browsers download them, and Altium Designer runs only on Windows.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Apps that open PcbLib
- WindowsAltium Designer, paid • KiCad imports it, free
- MacKiCad imports it, free
- iPhone and iPadNo app built in opens it
- AndroidNo app built in opens it
Questions
How do I open a .PcbLib file without Altium?
Drop it on this page or press Peek a PcbLib. Its footprints are listed down the left, each opening as a page. KiCad, which is free, imports them to use in its own boards.
How do I check a pad's size or pitch?
Press Measure and pick two points: it snaps to the pads' corners and centers and gives the distance in millimeters.
Why can't I see the solder mask or the paste?
They start hidden, since they cover the pads. Show them from the layers on the right, each in its own color.
Does it show the 3D bodies?
No. A footprint's 3D bodies are listed in the file, and Filepeek draws its layers flat, as Altium's 2D view does.