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Compress PNG files with palette quantization

Optimize JPEG files from the command line

Convert Japanese text encodings and kana forms

Preview multiple replacements across text files

Edit and convert geographic datasets in a browser or terminal

Command-line media conversion with explicit stream control

Encode, decode, test, and inspect FLAC audio

Command-line MP3 encoding with explicit bitrate and quality controls

Convert legacy database files through desktop or command-line tools

Combine download sources from the command line

Check TLS protocols and ciphers from the command line

Create and edit PDF bookmark trees

Java command-line tools for extracting and restructuring PDFs

Extract PDF text and page objects with a CLI and Python tools

Resolve large domain lists through a controlled DNS workflow

Command-line transfers with mirroring and parallel jobs

Self-host temporary uploads through a web interface or CLI

Serve one file or a directory from a self-contained command

Apply image-processing filters through several interfaces

Send ICMP probes to many hosts from one program

A DNS command-line client with several encrypted transports

Sort, split and concatenate text lists

Join, split and compare line-based lists

Detect and convert text-file encodings