Show HN: Open Schematics V2 – Largest open electronic schematics dataset

Image-Text-to-Text • Updated • 7

Datasets:

Expand in Data Studio

The largest dataset of electronic schematics and PCB layouts on the internet, built as an engineering reference for schematic and PCB layout work. It's a self-growing, autonomous dataset that continuously scans the web for new engineering designs and updates itself accordingly.

Dataset Description #

Each record corresponds to one schematic file and includes the raw source, rendered images, structured metadata, and all associated PCB files from the same project.

Dataset Structure

Schematic formats included

.kicad_sch

— KiCad v5+ (primary format; includes JSON/YAML/components).sch

— KiCad v4 legacy.SchDoc

— Altium Designer

PCB filters applied

• PCB files larger than 10 MB are excluded (extreme outliers; affects <1% of files)
• Projects with more than 20 PCB files retain the 20 with the largest rendered image (highest detail), ranked by pixel area

Dataset Creation #

Source Data

Schematics and PCB layouts collected from publicly available data from the web.

Data Collection

Files were fetched and processed to extract:

• Raw schematic and PCB source files
• Rendered images (PNG/SVG → PNG)
• Structured metadata via kiutils(JSON/YAML) - Component lists from library symbol references

Data Processing

• Empty .kicad_sch

files (no library symbols or schematic symbols) are filtered out .sch

and.SchDoc

rows are included with raw text only; JSON/YAML/components are None when kiutils conversion is unavailable- Component names are extracted from libSymbols

fields and deduplicated per library prefix extensions_used

is inferred from actual file paths on disk, not from YAML metadata fields

Use Cases #

Circuit Design AI: Training models to generate or understand electronic schematics** PCB Layout Understanding**: Learning the relationship between schematics and their physical PCB layouts** Component Recognition**: Identifying electronic components from schematic and PCB diagrams** Design Assistance**: Building tools to help engineers with circuit and PCB design** Multimodal Learning**: Paired schematic text + image + PCB text + image for cross-modal tasks** Documentation Generation**: Automatically generating documentation from schematics** Design Validation**: Training models to detect errors or suggest improvements** Educational Tools**: Creating interactive learning systems for electronics education

Limitations #

• JSON/YAML/components are only populated for .kicad_sch

format (~85% of rows) - PCB images are unavailable for ~55% of PCB entries (no PNG or SVG rendered)

• Schematic images are unavailable for ~10% of rows
• Quality and complexity of designs vary significantly across projects
• Component naming conventions vary between projects and library sources

License #

This dataset is released under the Creative Commons Attribution 4.0 International (CC-BY-4.0) license. Please ensure you comply with the original licenses of the source projects when using this data.

Citation #

If you use this dataset in your research or projects, please cite:

@dataset{open_schematics_2026,
  title={Open Schematics: A Dataset of Electronic Schematics and PCB Layouts from Hardware Projects},
  author={bshada},
  year={2026},
  publisher={Hugging Face},
  howpublished={\url{https://huggingface.co/datasets/bshada/open-schematics}}
}

Contact #

For questions, issues, or contributions, please open an issue on the dataset repository.

• Downloads last month
• 4,571