README.md

metadata

license: other
license_name: annotations-cc-by-4.0-screenshots-research-only
language:
  - en
  - tr
task_categories:
  - object-detection
tags:
  - gui
  - ui-element-detection
  - screen-parsing
  - computer-use
  - screenshots
  - yolo
size_categories:
  - 1K<n<10K
pretty_name: UI Elements (Web + Desktop) v0.1

UI Elements (Web + Desktop) v0.1

Screenshots of real web pages, synthetic forms and Linux desktop apps. Each screenshot comes with bounding boxes for its interactive UI elements and the text on each element.

You can use it for:

• training UI element detectors (YOLO, DETR, and similar),
• screen parsing and GUI grounding for computer-use agents,
• Set-of-Mark style pipelines,
• evaluating OCR on UI text.

Every label was generated automatically. Nobody drew any boxes by hand.

• Web: pages were rendered in headless Chromium and boxes were read from the live DOM. Shadow DOM and iframes are included. Elements that are hidden, disabled or covered by something else (modals, sticky headers) are skipped. robots.txt was respected.
• Desktop: Qt and GTK apps ran on an isolated virtual KWin (Wayland) display, and boxes were read from the AT-SPI accessibility tree.
• Synthetic forms: random form pages styled with Bootstrap, Bulma, Pico, Water.css, Simple.css and MVP.css. They add more checkbox, select and input examples.

Viewports range from phone (390×844) to 2560×1440, in light and dark color schemes. Page language is English or Turkish.

Contents

Split	Screenshots
train	1,245
validation	83

Source	Screenshots
web	651
synthetic-form	643
desktop-kde	34

The validation split holds different websites and desktop apps than train, so scores measure generalization, not memorization.

Classes (38,602 boxes)

Class	Boxes
button	6,104
link	20,895
input	2,458
checkbox	7,583
select	1,562

id	class	covers
0	button	buttons, tabs, menu-bar entries, toolbar buttons, <summary>, role=button/tab/menuitem
1	link	links, and list or tree items in sidebars and file views
2	input	text fields, search boxes, textareas, spin boxes, contenteditable
3	checkbox	checkboxes, radio buttons, switches
4	select	dropdowns and combo boxes

Format

Hugging Face imagefolder: data/{train,validation}/*.jpg plus a metadata.jsonl file.

{
  "file_name": "0ebed0962cef1da5.jpg",
  "width": 1366, "height": 768,
  "source": "web",
  "url": "https://getbootstrap.com/docs/5.3/examples/checkout/",
  "color_scheme": "light",
  "objects": {
    "bbox": [[172, 358, 293, 38]],
    "category": [2],
    "text": ["Name on card"]
  }
}

• bbox is [x, y, width, height] in pixels (COCO style).
• text is the element's accessible name or visible text. For inputs it is the value or placeholder, and for selects the selected option. It can be an empty string.

from datasets import load_dataset
ds = load_dataset("bugraakdemir/ui-elements")

yolo/ui_elements_yolo.zip holds the same data in Ultralytics YOLO format, including data.yaml:

yolo detect train data=data.yaml model=yolo11n.pt imgsz=1280 epochs=100

Use a large imgsz (1280). UI elements are small, and at 640 many of them get lost.

Known limitations

• This is a first version and it is small. Web pages dominate, and link is by far the most common class. You may want to weight or oversample the rarer classes.
• There is no Windows or macOS UI yet. On the desktop side, only KDE/Qt apps and one GTK app (pavucontrol) are included. Desktop windows are maximized and have no title bar.
• Labels come from the DOM and the accessibility tree, so they inherit those sources' mistakes:
  • Custom widgets without proper roles are missed.
  • Some elements are over-labeled, for example whole sidebar groups marked as links.
• There is no separate icon class. Clickable icons are labeled button or link.

License

• Annotations (boxes, classes, texts, metadata): CC BY 4.0.
• Screenshots of third-party websites: the content in them belongs to the respective site owners. They are included only for research and model training on UI understanding. If you own a site that appears here and want it removed, open a discussion on this repository and it will be taken out.
• Synthetic forms and desktop screenshots: made from open-source software.