PCB Gerber Viewer
LocalView Gerber (RS-274X) and Excellon drill files as a multi-layer board view — zoom, toggle layers, measure in mm/inch, export PNG/SVG. Free, no upload.
Drag files here, or click to browse
Supports GBR, GERBER, ART, DRL, TXT
Choose fileDrop one or more Gerber (RS-274X) / Excellon files — each file becomes a board layer, classified and color-coded (copper / paste / mask / drill / silk / outline), rendered to an interactive canvas with zoom, pan and distance measurement. All local.
What is it? Gerber Viewer renders Gerber (RS-274X) and Excellon drill files as an interactive multi-layer board canvas: each file becomes a layer, auto-classified (copper/paste/mask/drill/silk/outline) and color-coded, with zoom, pan, per-layer toggles, distance measurement in board units, and PNG/SVG export — all in your browser.
TL;DR: Drop Gerber (RS-274X) or Excellon drill files and get an interactive whole-board view — each file a layer, auto-classified and color-coded. Zoom, pan, toggle layers, measure in mm/inch and export PNG or SVG. Free with no sign-in; rendering runs locally and files never leave your device.
How to use
- Drop one or more Gerber (.gbr/.gerber/.art) or drill (.drl/.txt) files — each file becomes a layer and the whole board renders instantly.
- Wheel-zoom (pointer-centered), drag to pan, or hit "Fit view"; toggle layers in the Layers panel.
- Switch to Distance and click two points on the board (more points for a chain) — the length shows in board units (mm; inch boards also show the inch value).
- Export PNG (current view) or SVG (visible layers).
FAQ
Is it local?
Yes — files are parsed and rendered in your browser; nothing is uploaded.
Can I measure distances?
Yes — switch to Distance and click two points; the result shows in board units (mm, or inch with mm conversion for inch boards).
Which format is supported?
RS-274X Gerber and Excellon drill files; mixed mm/inch files are aligned by true size.
What is a Gerber file?
Gerber (RS-274X) is the de-facto PCB data format from Ucamco: copper, solder mask, silkscreen and outline layers described as vector photoplotter instructions. Gerber X2 adds attributes such as FileFunction, and fabricators world-wide accept Gerber X2 and legacy RS-274X, usually alongside Excellon drill files for the holes.
Can I open a whole board release at once?
Yes — drop every layer file (copper, paste, mask, drill, silk, outline). Each file becomes a layer, auto-classified by X2 FileFunction attributes or filename hints and color-coded; mixed mm/inch files are aligned by true size, so a full set renders as one board.
Can I export the board view?
Yes — PNG captures the current view and SVG exports the visible layers. For single-layer high-resolution PNGs or a batch of files, use Gerber to PNG; to overlay a layer set and check registration, use Gerber Layer Stackup. Both also run locally.
Do I need to upload my Gerber files like on a fab's viewer?
No — files are parsed and rendered entirely in your browser and never leave your device, which matters for NDA-bound boards. Fab-side and CAM viewers (GerbLook, PCB-Investigator, JLCDFM) need the design uploaded to their servers before you can see anything.
Examples
- Drop in a full board set (copper/silk/mask/drill) → layered color rendering
- Hide silk in the layer panel to read copper traces only
- Measure pad-to-pad distance in measure mode, in mm or inches
- Download a PNG for archives or docs
Supported formats
Limitations
- Negative-polarity layers render no graphics here and are listed as such in the result.
- Legacy RS-274D Gerber may not render — re-export as RS-274X.
- For quick visual inspection, not manufacturing-grade; no layer editing or manufacturing output.
- Touch supports drag-pan and tap-to-measure but not pinch-zoom (use the zoom buttons); at deep zoom the view is an enlarged pre-rendered bitmap and details soften.
Privacy
Privacy first: this tool runs entirely in your browser — your input and files never leave your device, and everything is cleared when you close the page.
Related tools
Standards & comparison
| Dimension | Vecaria (this tool) | Online converters (cloud) | Desktop professional CAD |
|---|---|---|---|
| Privacy | Runs locally in your browser; the file is not uploaded | You upload the file to a third-party server | Runs locally |
| Wait | No queue — as fast as your own device | Upload plus cloud queue | Local application startup |
| Standards support | RS-274X (Gerber) · Excellon (drill files) | Varies by service, often older subsets | Full vendor protocol sets |
| Install footprint | 0 MB — runs in the browser | 0 MB | Several GB of storage |