uDocumentViewer
Code & Markup.log

Log viewer

ready
About Log

Plain text logs (often huge, needs virtualization).

Log files are append-only text — easy in concept, painful in practice when they hit gigabytes. We virtualize lines, recognize common timestamp formats, and surface error levels at a glance.

FAQ
What is a Log file?
Log files are append-only text — easy in concept, painful in practice when they hit gigabytes. We virtualize lines, recognize common timestamp formats, and surface error levels at a glance.
Is my file uploaded?
No. Files are opened entirely in your browser using local JavaScript and WebAssembly. Nothing is sent to a server.
Does it work on mobile?
Yes. The viewer is mobile-first and works on phones, tablets, and desktops.
More Code & Markup