CBC to TXT Converter

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

Free to useNo file stored beyond 1 hourEncrypted over TLS 1.2/1.3No watermarks

or drag and drop files here

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.

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.

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.

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.

What is a CBC file?

A CBC file is a Calibre Comic Book Collection, an archive format generated specifically by the Calibre eBook management software to organize related comic files. It functions as a renamed ZIP or uncompressed container holding a comics.txt index file (encoded in UTF-8) alongside multiple CBZ or CBR files. The text file defines the reading order and metadata for the collection, allowing Calibre to convert the entire set into a single eBook format like EPUB or MOBI for portable devices.

How to open a CBC file

The CBC format is proprietary to the Calibre ecosystem and should be opened or converted using the Calibre E-book Management software on Windows, macOS, or Linux. Since the file is fundamentally an archive, users can also rename the extension to .ZIP and extract the contents using tools like 7-Zip or WinRAR to access the individual comic files inside.

CBC Technical Info

Full Name: Calibre Comic Book Collection
Developed By: Kovid Goyal (Calibre)
Initial Release: N/A
MIME Type: application/x-calibre-cbc

What is a TXT file?

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.

TXT Technical Info

Full Name: Plain Text File
Standardized By: American Standards Association (ASCII)
Initial Release: 1963 (ASCII)
MIME Type: text/plain

More tools

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CBC to LRF

CBC to MOBI

CBC to OEB

CBC to PDB

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Why RunConvert

The fastest way to convert any file

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

Convert CBC to TXT in seconds

Every CBC to TXT 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 CBC to TXT via API

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

# 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": "cbc-to-txt",
    "tasks": {
      "upload-file": {
        "operation": "import/upload"
      },
      "convert": {
        "operation": "convert",
        "input": "upload-file",
        "output_format": "txt"
      },
      "export-result": {
        "operation": "export/url",
        "input": "convert"
      }
    }
  }'

# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.cbc

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

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