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RetroTxt is the WebExtension that turns ANSI, ASCII, NFO text into in-browser HTML
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Turn many pieces of ANSI text art and ASCII/NFO plain text into HTML5 text using RetroTxt. The browser agnostic WebExtension that takes retro text files and stylises them into a more pleasing, useful format to view and copy in a web browser.

Available for installation from both the Chrome web store and Firefox Add-ons.

  • View ANSI, ASCII, NFO, Shift JIS, PCBoard, Wildcat text art as HTML
  • View server and dev-op logs formatted in coloured text with modern fonts
  • RGB 16.7 million, xterm 256 and IBM VGA 16 colour support
  • Swappable ANSI palettes, xterm, VGA, CGA, monochrome and switchable iCE Colors
  • Swappable ASCII & NFO colour themes, DOS, Windows, Amiga, C-64, Apple II, Atari ST
  • SAUCE metadata parsing
  • Multiple text encodings support including CP437, ISO-8959-1, Windows-1252, Shift JIS
  • Text rendering toggles, smeared, shadow and normal
  • Multiple IBM PC font support such as VGA, PS/2, EGA, CGA, MDA plus variants and more
  • Various Amiga fonts plus Mona, Commodore PETSCII, Atari ATASCII, Atari ST and Apple II

RetroTxt showcase



What is new?



Chrome · Firefox · Brave · Edge (Chromium)

Or use the source code


Chrome/Chromium 55 or Firefox 63 or newer browsers.

Tryout RetroTxt

You can test the RetroTxt install by clicking on one of the 10 sample artworks found on the welcome.html tab that launches after installation.

RetroTxt samples


Out of the box, some useful features of RetroTxt are off. Newer browsers require you to grant permission at prompts before RetroTxt can access specific browser data it needs. There are a couple of links to the Options dialogue in the welcome.html tab, or it is accessible from the browser's Extensions tab.

Config tab in Options

Run RetroTxt

Once configured RetroTxt will run on any text or ANSI art file observed in a permitted browser tab and mark the toolbar icon with a check.

RetroTxt toolbar button in Chrome

Elsewhere there are thousands of text files hosted at or the Project Gutenberg plain text books. Or download one of the fantastic text art packs created by Blocktronics, found at or 16 colors and use the file:/// protocol to browse and view the text art files saved onto your hard drive.


Chrome, Brave and Edge require Allow access to file URLs selected if you wish to use RetroTxt with text files stored on your local computer.


RetroTxt does not collect or transmit any data created by your web browser.

All data generated by the web extension is only ever stored locally on your computer through the use of the browser local or session storage APIs.

RetroTxt Privacy



An important note about the license

While RetroTxt uses a GNU Lesser General Public License v3.0, the included fonts are not. You should read each font license that is in the fonts/ subdirectory before redistribution, as some of the added collections do not permit the sale or modification of their fonts and packages.


RetroTxt by Ben Garrett on Twitter @bens_zone and GitHub

RetroTxt ANSI logo Zeus II Twitter @Zeus_II

Options icons by Google Material Design

Tippy tooltips by atomiks

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