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View a BBL file online, free

Open and read .BBL files online. View source, logs and text with syntax highlighting, search and line numbers, free.

Drop your .BBL file here

Opens your .BBL file right here.

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Up to 50 MB · 160+ text and code extensions
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100% free. No limits on use

How to open a code or text file online

Three steps, a few seconds, no software.

01

Open your .BBL file

Drop it on the box, choose it from your device, or paste the text straight in.

02

View it instantly

Your .BBL file opens neatly formatted with line numbers.

03

Search, copy or download

Search the text, jump to any line, then copy what you need or download a clean copy.

What is a .BBL file?

Plain text that programs, servers and people write every day.

A .BBL file is a bibliographic reference data file created by Oren Patashnik for use with TeX and BibTeX. It contains formatted bibliography entries that are incorporated into a document during the typesetting process. These files are typically opened and managed using programs such as BibDesk, WibTeX, proTeXt, Bib2x, and TeX Live.

Programs that open .BBL files

Windows
WibTeX, proTeXt, Bib2x
macOS
BibDesk
Linux
TeX Live
.BBL format details
DeveloperOren Patashnik

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Frequently asked questions

Is my .BBL file uploaded anywhere?

No. The file is read and highlighted for you.

Why do some characters look wrong (é, ł)?

That usually means the file was saved in one encoding and opened in another. We detect UTF-8, UTF-16 and the Windows-1250/1252 code pages automatically and show which one was used.

Can it handle huge log files?

Yes, up to 50 MB. Only the lines on screen are drawn, so scrolling stays smooth. Syntax colours are switched off for files over 1.5 MB to keep things fast.

How do the log level filters work?

We find levels like ERROR, WARN, INFO and DEBUG on each line. Lines without a level, such as stack traces, stay with the entry above them, so filtering to errors keeps the full trace.

Can I edit the file?

This is a viewer. To change code, download it or copy it into your editor. Converting encodings and line endings is planned.

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