---
dataset_info:
- config_name: code_edit
  features:
  - name: unique_index
    dtype: int64
  - name: item_name
    dtype: string
  - name: image
    dtype: image
  - name: edit_prompt
    dtype: string
  - name: difficulty_level
    dtype: string
  - name: change_identify
    dtype: string
  - name: original_code
    dtype: string
  - name: edited_code
    dtype: string
  - name: git_diff
    dtype: string
  splits:
  - name: english
    num_bytes: 87865093.0
    num_examples: 165
  - name: french
    num_bytes: 39691856.0
    num_examples: 68
  - name: german
    num_bytes: 35880444.0
    num_examples: 67
  - name: spanish
    num_bytes: 51186760.0
    num_examples: 75
  download_size: 214624153
  dataset_size: 214624153
- config_name: mockup2code
  features:
  - name: image
    dtype: image
  - name: ground_truth
    dtype: image
  - name: sketch_type
    dtype: int64
  - name: language
    dtype: string
  splits:
  - name: English
    num_bytes: 414902307.0
    num_examples: 397
  - name: French
    num_bytes: 54367567.0
    num_examples: 91
  - name: German
    num_bytes: 70486696.0
    num_examples: 87
  - name: Spanish
    num_bytes: 14543797.0
    num_examples: 19
  download_size: 554300367
  dataset_size: 554300367
- config_name: web_qa
  features:
  - name: image
    dtype: image
  - name: question
    dtype: string
  - name: ground_truth
    dtype: string
  - name: question_type
    dtype: string
  - name: language
    dtype: string
  splits:
  - name: english
    num_bytes: 306573273.0
    num_examples: 1476
  - name: french
    num_bytes: 78736984.0
    num_examples: 535
  - name: german
    num_bytes: 94020693.0
    num_examples: 620
  - name: spanish
    num_bytes: 98382195.0
    num_examples: 640
  download_size: 577713145
  dataset_size: 577713145
configs:
- config_name: code_edit
  data_files:
  - split: english
    path: code_edit/english-00000-of-00001.parquet
  - split: french
    path: code_edit/french-00000-of-00001.parquet
  - split: german
    path: code_edit/german-00000-of-00001.parquet
  - split: spanish
    path: code_edit/spanish-00000-of-00001.parquet
- config_name: mockup2code
  data_files:
  - split: English
    path: mockup2code/English.parquet
  - split: French
    path: mockup2code/French.parquet
  - split: German
    path: mockup2code/German.parquet
  - split: Spanish
    path: mockup2code/Spanish.parquet
- config_name: web_qa
  data_files:
  - split: english
    path: web_qa/english.parquet
  - split: french
    path: web_qa/french.parquet
  - split: german
    path: web_qa/german.parquet
  - split: spanish
    path: web_qa/spanish.parquet
---

# WebMMU: The Web Multimodal Understanding Benchmark

WebMMU is a comprehensive benchmark designed to push the boundaries of AI for the web. It challenges models to answer questions about websites, edit real HTML/CSS/JS code, and generate web layouts from mockups—across four languages and 20+ domains. Whether you're building smarter web agents or testing the limits of multimodal models, WebMMU is your go-to testbed.

## Key Features
- 🌐 **Multilingual:** English, Spanish, German, French
- 🧩 **Three Core Tasks:** WebQA, Code Editing, Mockup2Code
- 🖥️ **Real-World Data:** 20+ website domains
- 🔍 **Fine-Grained Evaluation:** Web Understanding & Reasoning, Agentic UI Action, and Code Generation
- 🤝 **Open & Human-Annotated:** Expert-verified, high-quality samples

---

## Tasks Overview
### WebQA
Answer questions about real website screenshots—test your model's ability to reason, ground, and understand UI elements and content.

### Mockup2Code
Turn hand-drawn or digital mockups into working HTML/CSS code. Evaluate how well your model translates design into code.

### Code Editing
Edit real website code based on user instructions. Can your model make precise, functional changes to HTML, CSS, or JS?

## Dataset Stats
|                  | English | Spanish | German | French | Total |
|------------------|---------|---------|--------|--------|-------|
| Website Images   | 392     | 133     | 130    | 131    | 786   |
| WebQA            | 1476    | 484     | 379    | 456    | 2795  |
| Mockup2Code      | 180     | 93      | 85     | 78     | 436   |
| Code Editing     | 165     | 75      | 67     | 68     | 375   |
| **Total**        | 2213    | 785     | 661    | 733    | 4392  |

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