Online Document Analyzer

Online Document Analyzer

This online document analyzer extracts text, counts words and characters, and examines common document structures. It supports selecting and processing multiple files in batches, making it easier to organize research papers, reports, reference materials, and other text content. Each format uses an appropriate parsing method, and statistics reflect the content actually recognized by the tool.

Supported File Formats

• TXT: Reads plain text and reports statistics such as character count, non-whitespace character count, line count, blank lines, paragraphs, and Chinese and English text counts.
• Markdown (.md, .markdown): Analyzes text and identifies common structures such as headings, lists, blockquotes, code blocks, links, images, and tables.
• DOCX: Extracts Word document text, analyzes identifiable paragraphs, headings, tables, images, and character counts, and reads selected document properties when available.
• RTF: Parses text from Rich Text Format documents and provides general text statistics.
• HTML and HTM: Extracts text from web documents in text extraction mode, with an option to determine whether link information is retained.

Batch Document Processing

Select multiple supported files at once or add them using the available drag-and-drop interface to reduce repetitive work. During batch processing, review each file's status, result, and error messages. If a file has an invalid format, corrupted content, or cannot be parsed, evaluate that file separately based on its processing result rather than treating it as successful.

Text extraction mode is suitable for collecting the body text from multiple files and copying or exporting the extracted content when needed. Structure analysis mode helps you inspect word counts, text statistics, and recognizable document structures for individual files. Distinguish per-file statistics from aggregate totals to avoid mixing results from different documents.

Text Extraction and Export

Extraction mode converts document content into plain text for easier editing and organization. You can view and copy the extracted text or export it as a TXT file. Plain text does not preserve the original document's complete fonts, colors, pagination, image layout, or other visual styling. Keep the original files if you need to retain their formatting.

Character and Word Count Statistics

The tool can count characters, non-whitespace characters, words, lines, blank lines, paragraphs, Chinese characters, English words, digits, and estimated reading time. Tokenization rules differ by language, so Chinese character counts and English word counts use different counting methods. Reading time is an estimate and does not represent the actual time required to read a document.

Markdown Structure Analysis

In addition to general text statistics, Markdown analysis can identify heading levels, list items, blockquotes, fenced code blocks, links, images, and tables. Statistics calculated from the source text include Markdown markers, while character counts that exclude some markers estimate the readable content. These are different counting methods. For complex nesting, extended syntax, or malformed Markdown, results depend on what the tool recognizes.

DOCX Structure and Document Properties

DOCX analysis can count identifiable paragraphs, headings, tables, nested tables, images, characters, and words. It can also read available properties such as title, subject, author, creation date, modification date, application, and page count. Some properties may be missing or outdated. Results may also differ from Word's pagination, visual line counts, or built-in word count.

How to Use the Tool

1. Select text extraction mode or document structure analysis mode.
2. Select one or more supported files, or add files using the available drag-and-drop interface.
3. Start processing and review each file's status, extracted text, or statistics.
4. Copy text, export results, or organize statistics for individual files as needed.
5. For files that cannot be parsed or produce unexpected results, check the file format, content integrity, and specific error messages.

Use Cases

• Batch-extract text from research papers, reports, and reference documents.
• Check character counts, line counts, and paragraph counts in TXT and Markdown files.
• Analyze headings, code blocks, links, and table structures in Markdown documents.
• Inspect identifiable paragraphs, headings, tables, images, and document properties in DOCX files.
• Review multiple documents before submission, editing, or archiving.

Privacy and Processing Limitations

Files are processed locally in your browser without uploading them to the application server. File size, batch size, and parser capabilities may affect processing speed and supported content. Corrupted, encrypted, mismatched, or structurally complex files may fail to parse. Character counts and structure recognition may also differ from other applications. Verify important results against the original files.