Best command-line tools

Search command-line cheatsheets and fill command arguments interactively.

Compile Glyphs, UFO and Designspace sources into static or variable fonts.

Filter a list interactively with fuzzy matching from the command line or a shell workflow.

Run JavaScript outside the browser for servers, command-line tools, and application scripts.

Build composable Python command-line interfaces from decorated functions.

Run a chosen command when watched files change, without tying the watcher to one language.

Command-line accounting from a plain-text journal

Format Python files consistently from the command line or as a repeatable project check.

Inspect and transform JSON from a terminal with an interactive viewer and JavaScript queries.

Command-line tools for Windows icon conversion and resource extraction.

Render HTML and CSS into PDF from a command line or Python

Parallel video encoding with scene-level quality control

A scriptable organiser for digital music collections

Upload temporary files from command-line workflows

Convert, combine, and inspect firmware load-file formats

Command-line MP3 encoding with explicit bitrate and quality controls

Inspect TCP and UDP connections from a terminal

Check spelling with Hunspell-format dictionaries

Convert mixed document files into structured Markdown

Convert HTML into Markdown with configurable link handling

Convert structured text into HTML, office, and documentation formats

Encode image frames into GIF animations

Render paginated HTML into PDF with a command-line workflow

Normalize text file line endings