DevKit Forge

Log Viewer

Read JSON, logfmt, Apache/Nginx and plain logs as a table: filter by level or text, follow one request, secrets masked.

WebRuns in your browser

JSON lines, logfmt, Apache or Nginx access logs, or timestamped text. Stack traces stay with their entry.

About this tool

Paste a log or open a log file to read it as a table of time, level, message and the most common fields. The format is detected from the first lines, and stack traces stay with the entry they belong to.

Filter by level, by text or a regular expression, or by a request ID to follow one request. Values that look like passwords, tokens or keys are masked in what is shown.

The log is read in a background worker and never leaves your browser. Files up to 50 MB are read, a filter is stopped after five seconds, and the first 5,000 matching entries can be shown.