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TXT to DOCX Converter

Convert TXT to DOCX online for free. Fast, secure, and high-quality conversion with no sign-up or software required.

  • Free to use
  • No file stored beyond 1 hour
  • Encrypted over TLS 1.2/1.3
  • No watermarks

Drag and drop your files here or click to upload.

Maximum file size is 1GB

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How it works

Three steps to your converted file

Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.

  1. 01

    Upload your file

    Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.

  2. 02

    Choose an output format

    Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.

  3. 03

    Convert & download

    Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.

TXT to DOCX

Why convert TXT to DOCX?

TXT and DOCX are both document formats: TXT is best for plain text without any formatting, DOCX for documents you want to keep editing.

  • Where DOCX works best

    Documents you want to keep editing.

TXT vs DOCX: what's the difference?

PropertyTXTDOCX
TypeDocumentDocument
EditableYesYes
Opens inEvery computer and phoneMicrosoft Word, Google Docs, Pages and LibreOffice
Best forPlain text without any formattingDocuments you want to keep editing

What is a TXT file?

Plain Text File

Standardized By
American Standards Association (ASCII)
Initial Release
1963 (ASCII)
MIME Type
text/plain

A TXT file is a standard plain text document that contains unformatted text, free of styling information such as fonts, bolding, or layout parameters. It stores data as a sequence of characters encoded in standards such as ASCII, UTF-8, or UTF-16, making it universally readable across all computing platforms. The format relies solely on control characters for line breaks (CR/LF) and spacing, serving as the fundamental data type for code source files, logs, and simple documentation.

How to open a TXT file

TXT files possess universal native support on all operating systems. Windows opens them by default with Notepad, macOS uses TextEdit, and Linux distributions utilize editors like Gedit or Nano. Because they contain no proprietary formatting, they are also viewable in any web browser and can be imported into virtually any word processing or data management software without conversion.

What is a DOCX file?

Word Open XML Document

Developed By
Microsoft
Initial Release
2006
MIME Type
application/vnd.openxmlformats-officedocument.wordprocessingml.document

The DOCX format is the default document standard for Microsoft Word 2007 and newer, based on the Office Open XML (OOXML) specification standardized under ISO/IEC 29500 and ECMA-376. It functions as a compressed ZIP container that packages separate XML files (such as document.xml, styles.xml, and settings.xml) alongside media assets. This modular XML architecture allows for improved data recovery and smaller file sizes compared to legacy binary DOC files, while explicitly prohibiting the storage of VBA macros.

How to open a DOCX file

DOCX is natively supported by Microsoft Word 2007+ on Windows and macOS. Due to its status as an ISO standard, it has broad compatibility with non-Microsoft ecosystem tools; it can be opened and edited by Apple Pages, Google Docs, LibreOffice Writer, and Apache OpenOffice. Furthermore, because it is a ZIP archive, users can rename the extension to .zip to extract and inspect the internal XML structure and embedded media assets manually.

More tools

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Why RunConvert

The fastest way to convert any file

Purpose-built for speed, privacy, and breadth of format support.

  • Convert TXT to DOCX in seconds

    Every TXT to DOCX conversion runs on our servers, so your device stays fast and the output quality stays intact.

  • Fast, cloud-powered

    No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.

  • Secure & private

    Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.

  • Free - no account needed

    Convert without creating an account - no credit card, no trial clock. Sign in only if you want history and higher daily limits.

Developer API

Convert TXT to DOCX via API

Automate TXT to DOCX conversions in three steps: create a job, upload your file, then poll for the result.

Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.

# 1. Create job
curl -X POST https://api.runconvert.com/v3/jobs \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "tag": "txt-to-docx",
    "tasks": {
      "upload-file": {
        "operation": "import/direct/upload"
      },
      "convert": {
        "operation": "convert",
        "input": "upload-file",
        "input_format": "txt",
        "output_format": "docx"
      },
      "export-result": {
        "operation": "export/url",
        "input": "convert"
      }
    }
  }'

# 2. Upload your file (upload_url of the upload-file task in the response)
curl -X PUT "$UPLOAD_URL&filename=input.txt" --upload-file input.txt

# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
  -H "Authorization: Bearer YOUR_API_KEY"

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