Split LOG Files Online



Free online log splitter - split LOG files by size

Convert directly in your browser, with no upload waiting time, and no risk of data leaks.

Simply choose your log file, pick a split method, and download the parts!

Choose a LOG File to Split

LOG File:
(Max 50M.)
(Big then 50M?)
or drag & drop the log file here
 
Split method:
 
Lines per file:
 





How to Split log (3 Steps)

  1. Choose your log file. Select a .log file up to 50M.
  2. Pick a split method. Choose a size in MB, a line count or the number of parts.
  3. Download the parts. Open each part in your log viewer without freezing it.

Online vs App

Same job, two ways — pick the one that fits your file:

OnlineApp
Free✓Trial
No install✓—
No upload✓✓
Large files / batch✗✓
GUI✓✓
CLI—✓

In short: this page is best for a quick, small file. For large files or batch jobs, use the BigTextFileSplitter desktop app — it also ships a command line for scripts and scheduled runs.

What to Know About log

  • The file is split on line boundaries so log entries stay readable.
  • Splitting by size keeps each part small enough for your editor.
  • Part files are numbered in order.
  • The log is processed locally and never uploaded.

Frequently Asked Questions

Why split a log file?

Huge logs can be slow or impossible to open. Smaller parts open instantly in any editor.

Are log entries kept intact?

Yes, the split happens between lines.

What about logs larger than 10 MB?

Use the offline Big Text File Splitter, which handles multi-gigabyte files.

Related Tools

Split text file | Split SQL file | Merge LOG files | Merge text files | Split CSV file | Offline splitter

Need bigger files or batch conversion?

If this service cannot split your data correctly, or your file is big than 50M, you can split log file locally by this App: Big LOG File Splitter, for Windows, Linux, and macOS.

Want to stay in the browser? Subscribe (from $5/month) to raise the online limits.

If you have any question or suggestion, please contact us.