tailspin

A log file highlighter.

Runs as tspin|macOS, Linux, Windows|github.com

Command form

ai-draft · 2 tasks · 7 fields

View a log file (or a command's output) with highlighting in a pager. Highlight-group selection and shell completions are left out.

Opens the form; the finished command lands at your prompt, unrun

Run in Otty

otty gui tailspin

Highlight a log fileExample values, fixed in this page — nothing here reaches a terminal

Basic

Log file*

file

TasksEach one presets the form for one job

View a log file

file

Follow a log file

filefollow

ParametersOnly these flags are editable in the form

Log file

path · positional 0

Follow file

boolean

--follow-f

Print to stdout

boolean

--print-p

Run command and view its output

string

--exec-e

Theme file

path

--theme

Custom pager

string

--pager

Highlight words

Format COLOR:WORD,WORD, for example red:ERROR,WARNING.
string · repeatable

--highlight

SourcesEvery flag above is checked against these

readme

-f, --follow Follow the contents of the file -p, --print Print the output to stdout -e, --exec='[CMD]' Run command and view the output in a pager --theme=[PATH] Use the theme file from the provided path --pager=[CUSTOM_PAGER] Set a custom pager --highlight=[COLOR]:[WORDS]…

help2026-10-27

github.com

Before it fills your prompt, Otty checks the installed tspin against its version. A form that does not match your version is not offered.