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View a LCB file online, free

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

Drop your .LCB file here

Opens your .LCB file right here.

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

What you get for a .LCB file

We don't have a dedicated viewer for this format, so we identify and inspect it instead — honestly, only what can be read from the file.

01

Drop your .LCB file

Choose it or drag it in. It's read right here in your browser.

02

We identify it

We read the magic bytes to tell what the file really is, its MIME type, and whether the name matches the contents.

03

See the details

Any metadata we can extract (dimensions, EXIF/GPS, document author and dates), a hex view, plus readable text and strings found inside.

What is a .LCB file?

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

An LCB file is a backup image created by the Concept2 LogCard utility. It contains a copy of the data stored on a Concept2 LogCard, which is used to track rowing machine workouts. These files are opened and managed using the Concept2 Utility software.

Programs that open .LCB files

Windows
Concept2 Utility
.LCB format details
DeveloperConcept2 Inc.

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Every viewer is free to use.

Frequently asked questions

Is my .LCB 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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