Withdata DataFileConverter converts log (*.log) files to HTML locally — single file, batch, or merge multiple LOG files into one HTML. Every log line becomes one row. 100% local, secure, and cross-platform.

Log files are line-oriented plain text files.

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Why Choose Withdata LOG to HTML Converter?

🔒 100% Local & Secure

LOG files are read and converted on your own computer. Nothing is uploaded to any cloud server.

⚡ Fast Streaming Conversion

Large LOG files are processed in streaming mode with low memory usage — millions of rows within a minute.

📁 Batch & Merge

Batch convert many LOG files to HTML files, or merge multiple LOG files into one HTML.

🔄 Line-oriented LOG Parsing

Each log line becomes a row — split it by a delimiter (space, tab, comma, pipe) or by fixed column widths.

🖥 Windows, macOS, Linux

Native builds for Windows, macOS and Linux, with a step-by-step GUI wizard and a command line interface.

⏱ CLI & Scheduled Tasks

Save a conversion session and run it automatically from Windows Task Scheduler or crontab.

Full Feature Comparison

Feature	Supported details
Input source	Local log files (`*.log`), batch log files, merged log files
Output format	HTML tables, optionally using a template file
Conversion mode	Single file · merge many LOG files into one HTML · batch (one to one)
Running mode	GUI wizard · command line · scheduled tasks
Source options	Delimiter or column widths, header row, start row, encoding
Output options	Column mapping, encoding, date format, empty value handling
Platform	Windows, macOS, Linux (native, 64-bit)

All LOG to HTML Conversions You Need

Single LOG file → HTML file, step by step in the GUI wizard
Batch convert multiple LOG files → multiple HTML files
Convert LOG to HTML in the command line, and run it as a scheduled task
All LOG conversion tools and all HTML conversion tools

LOG to HTML Notes

Log files are read as text: each line becomes one row.
Fields can be split by a delimiter (space, tab, comma, pipe, ...) or by fixed column widths.
The encoding is detected automatically and can be overridden.
Rows that do not match the expected column count can be skipped or written to a bad-file log.

How to Convert LOG to HTML (4 Steps)

Open Withdata DataFileConverter and select LOG as the input type and HTML as the output type.
Load your LOG data — a single file, a folder / list of files for batch conversion, or several files to merge into one.
Check the preview table, then adjust the source options and the output options.
Click Convert — the HTML output is written in seconds. Save the session if you want to run it again from the command line.

Convert LOG to HTML in GUI

In GUI mode the conversion is a step-by-step wizard: choose the LOG source, choose the HTML destination, check the preview, and click Convert. See Withdata DataFileConverter.