Opening a BIGBED File

The BIGBED file type is primarily associated with UCSC Genome Browser.

BIGBED	File extension: BIGBED
	File type:	Genome annotation display

What is a BIGBED file?

BIGBED files mostly belong to UCSC Genome Browser. A bigBed file is a compressed binary file format used to store genomic data, primarily annotations, for display in genome browsers like the UCSC Genome Browser. It is indexed for efficient retrieval of specific regions of the genome, making it suitable for large datasets. The file format is based on the bigWig format but is designed for discrete genomic features rather than continuous data. bigBed files are commonly used to store gene annotations, SNPs, and other genomic features. They offer a compact and efficient way to access and visualize large genomic datasets within a genome browser context.

How to open BIGBED files

You need a suitable software like UCSC Genome Browser to open a BIGBED file. You need a suitable software like UCSC Genome Browser to open a BIGBED file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your BIGBED file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a BIGBED file directly in the browser:. Just drag the file onto this browser window and drop it.

Online BIGBED Text Viewer

Choose your .bigbed file to analyze

or drag and drop it here

Online File Viewer

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Can't Open Your .BIGBED File? Try These Steps

Because .BIGBED files originate from various bioinformatics pipelines, they aren't universally openable.

Identify the Source: Files received from genomics researchers or DNA sequencing workflows usually require specialized genome browsing software.
Check the Header: Open the file in a hex viewer to inspect the first few bytes:
- EB F2 89 87 or 87 89 F2 EB: Confirms a standard binary indexed BigBed file.
- Readable text (e.g., chr1): Suggests it may actually be an uncompressed, standard BED file.
Use the Original Software: The original program is usually required to view these files. Try the UCSC Genome Browser, Integrative Genomics Viewer (IGV), or Ensembl; if uncertain, ask the sender.
Use this Webpage: Drag and drop your file here to detect its format, extract metadata, and preview contents.

Technical Data for BIGBED File Extension

File classification:

Genomic Data File Format

Related files:

bed, bb, bedgraph, annot, kan

Mime type:

application/octet-stream

a bigbed Genome annotation display is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with BIGBED files

Associate the BIGBED file extension with the correct application.
Update your software that should actually open genome annotation displays. Because only the current version supports the latest BIGBED file format. Search, therefore, e.g. on the manufacturer website after an available UCSC Genome Browser update.
To make sure that your BIGBED file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
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