Chawan TUI web browser
A terminal-based web browser in Nim.[1] Has acceptable (YMMV) CSS rendering, some JS support, and inline images (sixel/kitty). It can also use various protocols other than http(s) such as (s)ftp, gopher, gemini, ... Chawan started out as a w3m clone, and the UI still resembles it. However, the architecture has turned out quite different, with pages loaded in separate processes, and protocol/file type handling separated out into external binaries. An interesting result is that you can even register decoders for custom inline image formats, although practical use cases of this are…
In plain words
Chawan is a terminal-based web browser written in Nim that renders CSS, supports JavaScript, and displays inline images using sixel or kitty formats. It accesses websites through multiple protocols including HTTP, SFTP, Gopher, and Gemini. Built with a modular architecture where pages load in separate processes and protocol handling uses external binaries, Chawan evolved from a w3m clone but maintains a different internal design. It allows users to register custom image format decoders for specialized use cases.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
A terminal-based web browser in Nim.[1] Has acceptable (YMMV) CSS rendering, some JS support, and inline images (sixel/kitty). It can also use various protocols other than http(s) such as (s)ftp, gopher, gemini, ... Chawan started out as a w3m clone, and the UI still resembles it. However, the architecture has turned out quite different, with pages loaded in separate processes, and protocol/file type handling separated out into external binaries. An interesting result is that you can even register decoders for custom inline image formats, although practical use cases of this are rather minimal. There is a gallery showcasing some websites being rendered here: https://chawan.net/gallery/index.html [1]: https://nim-lang.org
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