ANSI to HTML Converter

How to use

1. 1Paste your colored terminal or log output into the input box. Real escape bytes work, and so do the \x1b, \033, \u001b, \e, and ^[ text forms.
2. 2Choose an HTML style: Inline styles for a single self-contained block, or CSS classes for a compact stylesheet plus class names.
3. 3Optionally turn on Wrap in a full HTML document to get a complete standalone .html file instead of just a pre block.
4. 4Check the live preview to confirm the colors and styles match what you expected.
5. 5Press Copy HTML to copy the generated markup, then paste it into your page, README, or docs. Use Load sample to see a worked example or Clear input to start over.

About this tool

ANSI to HTML Converter takes raw terminal output that contains ANSI escape codes, the ESC[ ... m sequences that color text in bash, zsh, fish, PowerShell, npm, yarn, pnpm, cargo, go, pip, pytest, git, docker, kubectl, and almost every modern CLI, and turns it into clean HTML you can paste into a blog post, documentation, a README rendered on GitHub Pages, a static site, or a changelog. Paste a captured log and the parser walks the Select Graphic Rendition (SGR) parameters of ECMA-48 and reproduces them faithfully: the standard 16-color palette (30 to 37 and 40 to 47), the bright variants (90 to 97 and 100 to 107), the xterm 256-color palette via 38;5;N and 48;5;N (the 6x6x6 RGB cube and the grayscale ramp included), and 24-bit truecolor via 38;2;R;G;B and 48;2;R;G;B, alongside bold, dim, italic, underline, reverse video, conceal, and strikethrough. It understands the textual forms of the escape byte that people paste from a string they captured, including \x1b, \033, \u001b, \e, and the caret notation ^[, and normalizes them all before parsing, so you do not have to convert anything first. Non-SGR control sequences such as cursor movement and clear-screen, plus the carriage-return line rewrites that progress bars emit, are recognized and removed so they do not show up as stray characters in your HTML. Two output styles are available. Inline styles put a style attribute on each colored span and wrap the result in a styled pre block, which is ideal when you cannot add a stylesheet, such as an email or a locked-down CMS field. CSS classes give every span a semantic class name and emit a compact stylesheet that lists only the colors you actually used, which keeps the markup readable and is the better choice for blogs and docs. You can copy just the pre block to drop into an existing page, or toggle the full document option to get a complete standalone .html file you can open directly. A live preview renders the same colors the HTML will produce so you can confirm the result before copying, and a summary counts the escape codes, lines, styled spans, and output size. Parsing, rendering, and HTML generation all run locally in your browser, so the log you paste, which may include private paths, hostnames, or tokens, is never uploaded or stored.

Free to use. Works in your browser. No signup, no login.