PedalPCB Gerber Viewer

Boards

Layer files

Appearance

Solder mask

Surface finish

Custom colors

Pick a color to edit

Hue

Saturation

Lightness

Shadow

Show shadow

Opacity

Softness

Distance

Applies to the 2D view and exported images. Markers show the most each slider can go, with the other two as set, before the shadow reaches the edge of the exported image.

Thickness (3D)

x – y – No board

Help

Using the viewer

Open a board. Click Open board (.zip) or drop a zip of Gerber and drill files anywhere on the page. Each zip becomes one board in the Boards list; loose Gerber files work too.
2D view. Drag to pan, scroll or pinch to zoom, F to fit. Use Top / Bottom to flip the board and the rotate buttons (or R) to turn it 90°. Alt-drag rotates freely and 0 resets.
3D view. Drag to orbit, right-drag to pan, scroll to zoom. Set the board thickness under Appearance › Thickness.
Measure. Pick Measure (or M), then click two points. They snap to holes and corners. Esc clears.
Layers. Untick files in Layer files to hide them, or use the Layers menu to hide whole groups (copper, mask, silkscreen, outline, drills).
Appearance. Choose a solder mask color and gold or silver finish, fine-tune every color under Custom colors, and set the board shadow under Shadow. Your choices are remembered in this browser.
Export Image. Saves the current view as PNG, WebP or JPEG. Choose a preset or a custom size, margin, background, shadow, outline and quality. The preview shows exactly what you will get.
Board info. The right-hand panels list the board size, drills and any notes about the files. Switch between mm and inches at the top right.

Shortcuts

`2` / `3`	Switch between the 2D and 3D view
`P`	Pan tool (2D)
`M`	Measure tool (2D). Snaps to holes and corners
`Esc`	Clear the measurement, or close a dialog
`B`	Flip between top and bottom
`R`	Rotate the board 90° clockwise (2D)
`Shift` + `R`	Rotate 90° counter-clockwise
`0`	Reset rotation
`Alt` + drag	Rotate freely (2D)
`F`	Fit the board in view
`+` / `−`	Zoom in / out
Mouse wheel	Zoom at the pointer
3D: drag / right-drag	Orbit / pan the camera
Touch	Pinch to zoom
`?`	Open this help

URL parameters

Open the viewer with a board and view already set. Parameters also work after #. They override your saved settings and are not saved themselves.

`file`	URL or relative path of a Gerber .zip to open. Repeat it to open several boards.
`mode`	`2d` or `3d`
`side`	`top` or `bottom`
`rotate`	`0`, `90`, `180` or `270` (2D view)
`units`	`mm` or `in`
`theme`	`light` or `dark`
`mask`	green, purple, red, yellow, blue, white or black
`finish`	`gold` or `silver`
`color_mask` `color_traces` `color_silk` `color_finish` `color_outline` `color_edge`	Custom hex colors such as `1d5a3f`. Applied after `mask` and `finish`.
`thickness`	Board thickness in mm for 3D, e.g. `1.6`
`hide`	Hide these, e.g. `silk,drill`. Choose from copper, mask, silk, outline, drill.
`shadow`	`0` turns the shadow off, `1` on
`opacity` `softness` `distance`	Shadow settings: 0–100 %, 0–120 px, 0–80 px

Boards are downloaded by the browser, so the page must be served over http(s), and a board on another domain only loads if that server allows cross-site requests.