In uBlock Origin -> My Filters:

    # HN dark Mode:
    news.ycombinator.com##body:style(background: black)
    news.ycombinator.com##td:style(color: #fafafa !important)
    news.ycombinator.com##table:style(background-color: #24273a)
    news.ycombinator.com##div.toptext:style(color: #fafafa)
    news.ycombinator.com##div.c00:style(color: #fafafa !important)
    news.ycombinator.com##a:style(color: #ffa000 !important)
    news.ycombinator.com##span#karma:style(color: #faa000 !important)
    news.ycombinator.com##span.pagetop:style(color: #fafafa !important)
    news.ycombinator.com##textarea:style(color: #696969 !important; background: inherit; )
    news.ycombinator.com###hnmain:style(background: #24273a !important)

On Android, Vivaldi supports dark more out of the box. It's actually just a toggle for the dark mode present on any chromium-based browser, and you can enable it globally in any of them in chrome://flags/#enable-force-dark

Dark Reader, often recommended, is very slow, especially on old hardware. This built-in mode is much more efficient and works well on vast majority of pages.

Save this in a bookmarklet and click it to turn any website dark:

    javascript:(function(){const id='_dark_mode_bm';const el=document.getElementById(id);if(el){el.remove();}else{const s=document.createElement('style');s.id=id;s.textContent='html{filter:invert(1) hue-rotate(180deg)!important;background:#fff!important;}img,video,canvas,picture,svg{filter:invert(1) hue-rotate(180deg)!important;}';document.head.appendChild(s);}})();

    javascript:(function(){const id='_dark_perf_bm';const el=document.getElementById(id);if(el){el.remove();}else{const s=document.createElement('style');s.id=id;s.textContent=':root{color-scheme:dark!important;}html,body{background-color:#141414!important;color:#dcdcdc!important;}div,section,article,nav,header,footer,aside,main,table,tr,td,th,ul,ol,li{background-color:#18191a!important;color:#dcdcdc!important;border-color:#383838!important;}p,span,h1,h2,h3,h4,h5,h6,b,strong,i,em{color:inherit!important;}a,a%20*{color:#58a6ff!important;}pre,code,kbd{background-color:#202224!important;color:#ff9857!important;}input,textarea,select,button{background-color:#262626!important;color:#fff!important;border:1px%20solid%20#444!important;}img,video,canvas,picture{background-color:transparent!important;}';document.head.appendChild(s);}})();

I am using Stylus and this theme:

    body {
        background-color: #262626 !important;
    }

    body > center > table, input, textarea {
        background-color: #222 !important;
    }

    body > center > table > tbody > tr:first-child > td {
        background-color: #ff6600 !important;
    }

    /* Bright text */
    td.title a:link, span.comment font, span.comment font a:link, u a:link, span.yclinks a:link, body:not([id]),
    td:nth-child(2):not(.subtext) > a:link, input, textarea, p > a, a > u, .c00, .c00 a:link,
    a[href="http://www.ycombinator.com/apply/"], a[href="https://www.ycombinator.com/apply/"] {
        color: #ccc !important;
    }

    .admin td {
        color: #aaa !important;
    }

    /* search box and comment box */
    input, textarea {
        border: 1px solid #828282 !important;
    }

I used "Override colors" under Settings -> Accessibility to set nice dark colors.

Then I used userChrome.js from https://github.com/AlexVallat/firefox-scripts/ to add a button which toggles the browser preferences "browser.display.use_system_colors" and "browser.display.document_color_use", so I can still access bright mode if needed.

If you're on one of the betas for about-to-be-released apple OS’s, there's a new describe an extension functionality and building a dark mode for HN is exactly what I just used it to do. Super easy, and synced across all my devices.

I know this sounds like an ad, but I was pretty impressed with it

The suggestion has been brought up and dang has commented on it over the years. He doesn't seem opposed to it per se. It's possible your descendants may live to see dark-mode HN:

https://news.ycombinator.com/item?id=23199062

See also:

dang + "dark mode": https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...

dang + "on the list" (lol): https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...

On Safari I use https://getnoir.app/.

Try Harmonic

I use the "Comments Owl for Hacker News" Firefox extension - https://soitis.dev/comments-owl-for-hacker-news

It has a "Dark Mode" under options, plus it allows you to revisit a thread later and know which comments are new.

This is the Chrome Extension that I use, I love it because it has a Safari version that you can use on your iPhone:

https://chromewebstore.google.com/detail/hn-dark-mode/abpjfl...

Dark Reader extension for Chrome.

Darkreader extension in Firefox

Firefox desktop and mobile let you install addons like https://darkreader.org/ which work great.

I still remember this thread: https://news.ycombinator.com/item?id=23197966

Stock Dark Reader browser extension works well for me.

Very beta: https://adhn.netlify.app/

I use Dark Reader on my Firefox Mobile and on any of my pc browsers.

Use the firefox extension "Dark Background and Light Text".

https://hcker.news has multiple dark mode themes.

Opera browser supports it natively

iOS accessibility shortcut: 3 taps on sleep button inverts the colors of any website, if you set it up.

I use the HN Enhance extension in FF.

Dark Reader extension in Safari.

https://uso.kkx.one/style/92693

Use it with Stylus

On iOS, Octal.

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