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MOBI to RTF Converter

Convert MOBI to RTF 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.

MOBI to RTF

Why convert MOBI to RTF?

MOBI is a fixed layout, while RTF can be edited. RTF opens on almost any device, while MOBI often needs extra software.

  • Opens everywhere

    RTF opens in almost every word processor and text editor, while MOBI needs older Kindles and the Kindle app.

  • Edit the content

    RTF can be edited, so you can change the text, tables or slides that were locked in the MOBI.

  • Where RTF works best

    Simple formatted text that opens in any editor.

MOBI vs RTF: what's the difference?

PropertyMOBIRTF
TypeEbookDocument
EditableNoYes
Opens inOlder Kindles and the Kindle appAlmost every word processor and text editor
Best forOlder Kindle ebooksSimple formatted text that opens in any editor

What is a MOBI file?

Mobipocket eBook Format

Developed By
Mobipocket SA
Initial Release
2000
MIME Type
application/x-mobipocket-ebook

The Mobipocket eBook format (MOBI) is a binary distribution format developed by Mobipocket SA in 2000, utilizing the Open eBook (OEB) standard and XHTML for reflowable content layout. Encapsulated within a Palm Database (PDB) container, MOBI files employ either the LZ77-based PalmDOC compression or the proprietary HUFF/CDIC algorithm to minimize file size. The format supports Digital Rights Management (DRM), metadata indexing, and javascript capabilities, serving as the foundational architecture for Amazon's proprietary AZW format before the adoption of KF8.

How to open a MOBI file

Native support for MOBI is restricted primarily to Amazon Kindle hardware and legacy Mobipocket readers. On Windows, macOS, and Linux, users require third-party eBook management software such as Calibre, which offers comprehensive viewing and conversion capabilities. Alternatively, the Kindle Previewer tool provided by Amazon or multi-format readers like FBReader and Sumatra PDF can render the unencrypted content of these archives.

What is an RTF file?

Rich Text Format

Developed By
Microsoft Corporation
Initial Release
1987
MIME Type
application/rtf

The Rich Text Format (RTF) is a proprietary document file format with published specifications developed by Microsoft Corporation in 1987 for cross-platform document interchange. It encodes formatted text and graphics using 7-bit ASCII characters, utilizing a structure of control words, control symbols, and groups to define formatting properties such as bolding, italics, and fonts. Unlike binary formats, RTF is human-readable and was designed to facilitate interoperability between different word processing software and operating systems before the standardization of XML-based formats.

How to open an RTF file

Due to its design as an interchange format, RTF possesses native support across almost all major operating systems without requiring third-party installation. Microsoft Windows opens RTF files natively with WordPad or Microsoft Word, while macOS utilizes TextEdit. For Linux users or cross-platform consistency, LibreOffice Writer and Apache OpenOffice provide robust handling of the format's styling attributes.

More tools

More free ebook 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 MOBI to RTF in seconds

    Every MOBI to RTF 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 MOBI to RTF via API

Automate MOBI to RTF 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": "mobi-to-rtf",
    "tasks": {
      "upload-file": {
        "operation": "import/direct/upload"
      },
      "convert": {
        "operation": "convert",
        "input": "upload-file",
        "input_format": "mobi",
        "output_format": "rtf"
      },
      "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.mobi" --upload-file input.mobi

# 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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