ce is a customizable, self-documenting, real-time display editor similar to the GNU version of Emacs.
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	ce is a customizable, self-documenting, real-time display editor similar to the GNU version of Emacs.
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	mg is a Micro Emacs derivative. It’s a portable version of mg maintained by the OpenBSD team.
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	Remacs is a community-driven port of Emacs to Rust. Emacs is an extensible, customizable, self-documenting real-time display editor.
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	JOE or Joe’s Own Editor is a full-featured ncurses-based text editor for Unix systems.
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	Zile Is Lossy Emacs (Zile) is a small Emacs clone. Zile is a customizable, self-documenting real-time display editor.
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	jpegoptim is a utility to optimize jpeg files. Both lossless and lossy optimization are available from this free and open source tool.
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	Oxipng is a multithreaded lossless PNG compression optimizer (CLI and library).
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	Pngcrush is a free and open source optimizer for PNG (Portable Network Graphics) files. It is a command-line tool.
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	Zopfli Compression Algorithm is a compression library programmed in C to perform very good, but slow, deflate or zlib compression.
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	OptiPNG optimizes PNG files, i.e. reduce their size to a minimum, without losing semantic information.
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