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DarkModeBuddy

Automatically switch your Mac between light and dark modes based on the ambient light sensor.

I've never been a fan of the built-in "Auto" mode on macOS because it's based on time of day and it will not switch the Mac to Dark Mode while I'm actively using it (which is a problem, since I'm pretty much always using my Mac).

The solution for that is DarkModeBuddy. It's a tiny app that keeps running in the background and reads the ambient light sensor on your Mac (the same one it uses to adjust the brightness of your screen). When the ambient light level falls below the configured value, DarkModeBuddy automatically switches the Mac into Dark Mode. When the ambient light level rises above the configured value, it goes back into Light mode. This does not happen instantaneously: in order to prevent flickering, the change in ambient light level must persist for a certain amount of time, which can also be configured in the app's settings.

Compatibility

DarkModeBuddy requires macOS Catalina or later and a Mac with a built-in ambient light sensor. External displays with ambient light sensors are not currently supported.

Below is a non-exhaustive list of Mac models that have been verified to work with DarkModeBuddy. If your Mac is newer than any of the models on the list, it is likely to be supported as well.

  • MacBook Air (M1, 2020)
  • MacBook Air (13-inch, Mid 2013)
  • MacBook Pro (M1, 2020)
  • iMac (Retina 5K, 27-inch, 2020)
  • iMac (27-inch, Late 2012)
  • MacBook Pro 16" (2019)
  • MacBook Pro 16" (2021)
  • MacBook Pro 13" (2019)
  • MacBook Pro 13" (2018)
  • MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports)
  • MacBook Pro (Retina, 15-inch, Mid 2015)
  • MacBook Pro (Retina, 13-inch, Early 2015)
  • MacBook Pro (Retina, 15-inch, Mid 2014)

Pull requests adding support to hardware that's not currently supported are more than welcome.

Download

DarkModeBuddy is available for free (it's also open-source). If you prefer, you can pay any amount you'd like in order to support my work.

You can always get the latest build on Gumroad.

About

Switch your Mac's system theme based on the ambient light intensity.

Resources

Readme
BSD-2-Clause license
Activity

Stars

576 stars

Watchers

9 watching

Forks

26 forks
Report repository

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Sponsor this project

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
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DarkModeBuddy
Automatically switch your Mac between light and dark modes based on the ambient light sensor.
I've never been a fan of the built-in "Auto" mode on macOS because it's based on time of day and it will not switch the Mac to Dark Mode while I'm actively using it (which is a problem, since I'm pretty much always using my Mac).
The solution for that is DarkModeBuddy. It's a tiny app that keeps running in the background and reads the ambient light sensor on your Mac (the same one it uses to adjust the brightness of your screen). When the ambient light level falls below the configured value, DarkModeBuddy automatically switches the Mac into Dark Mode. When the ambient light level rises above the configured value, it goes back into Light mode. This does not happen instantaneously: in order to prevent flickering, the change in ambient light level must persist for a certain amount of time, which can also be configured in the app's settings.
Compatibility
DarkModeBuddy requires macOS Catalina or later and a Mac with a built-in ambient light sensor. External displays with ambient light sensors are not currently supported.
Below is a non-exhaustive list of Mac models that have been verified to work with DarkModeBuddy. If your Mac is newer than any of the models on the list, it is likely to be supported as well.
  • MacBook Air (M1, 2020)
  • MacBook Air (13-inch, Mid 2013)
  • MacBook Pro (M1, 2020)
  • iMac (Retina 5K, 27-inch, 2020)
  • iMac (27-inch, Late 2012)
  • MacBook Pro 16" (2019)
  • MacBook Pro 16" (2021)
  • MacBook Pro 13" (2019)
  • MacBook Pro 13" (2018)
  • MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports)
  • MacBook Pro (Retina, 15-inch, Mid 2015)
  • MacBook Pro (Retina, 13-inch, Early 2015)
  • MacBook Pro (Retina, 15-inch, Mid 2014)
Pull requests adding support to hardware that's not currently supported are more than welcome.
Download
DarkModeBuddy is available for free (it's also open-source). If you prefer, you can pay any amount you'd like in order to support my work.
You can always get the latest build on Gumroad.
About
Switch your Mac's system theme based on the ambient light intensity.
Resources
Readme
BSD-2-Clause license
Activity
Stars
576 stars
Watchers
9 watching
Forks
26 forks
Report repository
Releases
Sponsor this project
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
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DarkModeBuddy
Automatically switch your Mac between light and dark modes based on the ambient light sensor.
I've never been a fan of the built-in "Auto" mode on macOS because it's based on time of day and it will not switch the Mac to Dark Mode while I'm actively using it (which is a problem, since I'm pretty much always using my Mac).
The solution for that is DarkModeBuddy. It's a tiny app that keeps running in the background and reads the ambient light sensor on your Mac (the same one it uses to adjust the brightness of your screen). When the ambient light level falls below the configured value, DarkModeBuddy automatically switches the Mac into Dark Mode. When the ambient light level rises above the configured value, it goes back into Light mode. This does not happen instantaneously: in order to prevent flickering, the change in ambient light level must persist for a certain amount of time, which can also be configured in the app's settings.
Compatibility
DarkModeBuddy requires macOS Catalina or later and a Mac with a built-in ambient light sensor. External displays with ambient light sensors are not currently supported.
Below is a non-exhaustive list of Mac models that have been verified to work with DarkModeBuddy. If your Mac is newer than any of the models on the list, it is likely to be supported as well.
  • MacBook Air (M1, 2020)
  • MacBook Air (13-inch, Mid 2013)
  • MacBook Pro (M1, 2020)
  • iMac (Retina 5K, 27-inch, 2020)
  • iMac (27-inch, Late 2012)
  • MacBook Pro 16" (2019)
  • MacBook Pro 16" (2021)
  • MacBook Pro 13" (2019)
  • MacBook Pro 13" (2018)
  • MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports)
  • MacBook Pro (Retina, 15-inch, Mid 2015)
  • MacBook Pro (Retina, 13-inch, Early 2015)
  • MacBook Pro (Retina, 15-inch, Mid 2014)
Pull requests adding support to hardware that's not currently supported are more than welcome.
Download
DarkModeBuddy is available for free (it's also open-source). If you prefer, you can pay any amount you'd like in order to support my work.
You can always get the latest build on Gumroad.
About
Switch your Mac's system theme based on the ambient light intensity.
Resources
Readme
BSD-2-Clause license
Activity
Stars
576 stars
Watchers
9 watching
Forks
26 forks
Report repository
Releases
Sponsor this project
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
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DarkModeBuddy
Automatically switch your Mac between light and dark modes based on the ambient light sensor.
I've never been a fan of the built-in "Auto" mode on macOS because it's based on time of day and it will not switch the Mac to Dark Mode while I'm actively using it (which is a problem, since I'm pretty much always using my Mac).
The solution for that is DarkModeBuddy. It's a tiny app that keeps running in the background and reads the ambient light sensor on your Mac (the same one it uses to adjust the brightness of your screen). When the ambient light level falls below the configured value, DarkModeBuddy automatically switches the Mac into Dark Mode. When the ambient light level rises above the configured value, it goes back into Light mode. This does not happen instantaneously: in order to prevent flickering, the change in ambient light level must persist for a certain amount of time, which can also be configured in the app's settings.
Compatibility
DarkModeBuddy requires macOS Catalina or later and a Mac with a built-in ambient light sensor. External displays with ambient light sensors are not currently supported.
Below is a non-exhaustive list of Mac models that have been verified to work with DarkModeBuddy. If your Mac is newer than any of the models on the list, it is likely to be supported as well.
  • MacBook Air (M1, 2020)
  • MacBook Air (13-inch, Mid 2013)
  • MacBook Pro (M1, 2020)
  • iMac (Retina 5K, 27-inch, 2020)
  • iMac (27-inch, Late 2012)
  • MacBook Pro 16" (2019)
  • MacBook Pro 16" (2021)
  • MacBook Pro 13" (2019)
  • MacBook Pro 13" (2018)
  • MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports)
  • MacBook Pro (Retina, 15-inch, Mid 2015)
  • MacBook Pro (Retina, 13-inch, Early 2015)
  • MacBook Pro (Retina, 15-inch, Mid 2014)
Pull requests adding support to hardware that's not currently supported are more than welcome.
Download
DarkModeBuddy is available for free (it's also open-source). If you prefer, you can pay any amount you'd like in order to support my work.
You can always get the latest build on Gumroad.
About
Switch your Mac's system theme based on the ambient light intensity.
Resources
Readme
BSD-2-Clause license
Activity
Stars
576 stars
Watchers
9 watching
Forks
26 forks
Report repository
Releases
Sponsor this project
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
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DarkModeBuddy
Automatically switch your Mac between light and dark modes based on the ambient light sensor.
I've never been a fan of the built-in "Auto" mode on macOS because it's based on time of day and it will not switch the Mac to Dark Mode while I'm actively using it (which is a problem, since I'm pretty much always using my Mac).
The solution for that is DarkModeBuddy. It's a tiny app that keeps running in the background and reads the ambient light sensor on your Mac (the same one it uses to adjust the brightness of your screen). When the ambient light level falls below the configured value, DarkModeBuddy automatically switches the Mac into Dark Mode. When the ambient light level rises above the configured value, it goes back into Light mode. This does not happen instantaneously: in order to prevent flickering, the change in ambient light level must persist for a certain amount of time, which can also be configured in the app's settings.
Compatibility
DarkModeBuddy requires macOS Catalina or later and a Mac with a built-in ambient light sensor. External displays with ambient light sensors are not currently supported.
Below is a non-exhaustive list of Mac models that have been verified to work with DarkModeBuddy. If your Mac is newer than any of the models on the list, it is likely to be supported as well.
  • MacBook Air (M1, 2020)
  • MacBook Air (13-inch, Mid 2013)
  • MacBook Pro (M1, 2020)
  • iMac (Retina 5K, 27-inch, 2020)
  • iMac (27-inch, Late 2012)
  • MacBook Pro 16" (2019)
  • MacBook Pro 16" (2021)
  • MacBook Pro 13" (2019)
  • MacBook Pro 13" (2018)
  • MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports)
  • MacBook Pro (Retina, 15-inch, Mid 2015)
  • MacBook Pro (Retina, 13-inch, Early 2015)
  • MacBook Pro (Retina, 15-inch, Mid 2014)
Pull requests adding support to hardware that's not currently supported are more than welcome.
Download
DarkModeBuddy is available for free (it's also open-source). If you prefer, you can pay any amount you'd like in order to support my work.
You can always get the latest build on Gumroad.
About
Switch your Mac's system theme based on the ambient light intensity.
Resources
Readme
BSD-2-Clause license
Activity
Stars
576 stars
Watchers
9 watching
Forks
26 forks
Report repository
Releases
Sponsor this project
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
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DarkModeBuddy
Automatically switch your Mac between light and dark modes based on the ambient light sensor.
I've never been a fan of the built-in "Auto" mode on macOS because it's based on time of day and it will not switch the Mac to Dark Mode while I'm actively using it (which is a problem, since I'm pretty much always using my Mac).
The solution for that is DarkModeBuddy. It's a tiny app that keeps running in the background and reads the ambient light sensor on your Mac (the same one it uses to adjust the brightness of your screen). When the ambient light level falls below the configured value, DarkModeBuddy automatically switches the Mac into Dark Mode. When the ambient light level rises above the configured value, it goes back into Light mode. This does not happen instantaneously: in order to prevent flickering, the change in ambient light level must persist for a certain amount of time, which can also be configured in the app's settings.
Compatibility
DarkModeBuddy requires macOS Catalina or later and a Mac with a built-in ambient light sensor. External displays with ambient light sensors are not currently supported.
Below is a non-exhaustive list of Mac models that have been verified to work with DarkModeBuddy. If your Mac is newer than any of the models on the list, it is likely to be supported as well.
  • MacBook Air (M1, 2020)
  • MacBook Air (13-inch, Mid 2013)
  • MacBook Pro (M1, 2020)
  • iMac (Retina 5K, 27-inch, 2020)
  • iMac (27-inch, Late 2012)
  • MacBook Pro 16" (2019)
  • MacBook Pro 16" (2021)
  • MacBook Pro 13" (2019)
  • MacBook Pro 13" (2018)
  • MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports)
  • MacBook Pro (Retina, 15-inch, Mid 2015)
  • MacBook Pro (Retina, 13-inch, Early 2015)
  • MacBook Pro (Retina, 15-inch, Mid 2014)
Pull requests adding support to hardware that's not currently supported are more than welcome.
Download
DarkModeBuddy is available for free (it's also open-source). If you prefer, you can pay any amount you'd like in order to support my work.
You can always get the latest build on Gumroad.
About
Switch your Mac's system theme based on the ambient light intensity.
Resources
Readme
BSD-2-Clause license
Activity
Stars
576 stars
Watchers
9 watching
Forks
26 forks
Report repository
Releases
Sponsor this project
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
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DarkModeBuddy
Automatically switch your Mac between light and dark modes based on the ambient light sensor.
I've never been a fan of the built-in "Auto" mode on macOS because it's based on time of day and it will not switch the Mac to Dark Mode while I'm actively using it (which is a problem, since I'm pretty much always using my Mac).
The solution for that is DarkModeBuddy. It's a tiny app that keeps running in the background and reads the ambient light sensor on your Mac (the same one it uses to adjust the brightness of your screen). When the ambient light level falls below the configured value, DarkModeBuddy automatically switches the Mac into Dark Mode. When the ambient light level rises above the configured value, it goes back into Light mode. This does not happen instantaneously: in order to prevent flickering, the change in ambient light level must persist for a certain amount of time, which can also be configured in the app's settings.
Compatibility
DarkModeBuddy requires macOS Catalina or later and a Mac with a built-in ambient light sensor. External displays with ambient light sensors are not currently supported.
Below is a non-exhaustive list of Mac models that have been verified to work with DarkModeBuddy. If your Mac is newer than any of the models on the list, it is likely to be supported as well.
  • MacBook Air (M1, 2020)
  • MacBook Air (13-inch, Mid 2013)
  • MacBook Pro (M1, 2020)
  • iMac (Retina 5K, 27-inch, 2020)
  • iMac (27-inch, Late 2012)
  • MacBook Pro 16" (2019)
  • MacBook Pro 16" (2021)
  • MacBook Pro 13" (2019)
  • MacBook Pro 13" (2018)
  • MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports)
  • MacBook Pro (Retina, 15-inch, Mid 2015)
  • MacBook Pro (Retina, 13-inch, Early 2015)
  • MacBook Pro (Retina, 15-inch, Mid 2014)
Pull requests adding support to hardware that's not currently supported are more than welcome.
Download
DarkModeBuddy is available for free (it's also open-source). If you prefer, you can pay any amount you'd like in order to support my work.
You can always get the latest build on Gumroad.
About
Switch your Mac's system theme based on the ambient light intensity.
Resources
Readme
BSD-2-Clause license
Activity
Stars
576 stars
Watchers
9 watching
Forks
26 forks
Report repository
Releases
Sponsor this project
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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DarkModeBuddy
Automatically switch your Mac between light and dark modes based on the ambient light sensor.
I've never been a fan of the built-in "Auto" mode on macOS because it's based on time of day and it will not switch the Mac to Dark Mode while I'm actively using it (which is a problem, since I'm pretty much always using my Mac).
The solution for that is DarkModeBuddy. It's a tiny app that keeps running in the background and reads the ambient light sensor on your Mac (the same one it uses to adjust the brightness of your screen). When the ambient light level falls below the configured value, DarkModeBuddy automatically switches the Mac into Dark Mode. When the ambient light level rises above the configured value, it goes back into Light mode. This does not happen instantaneously: in order to prevent flickering, the change in ambient light level must persist for a certain amount of time, which can also be configured in the app's settings.
Compatibility
DarkModeBuddy requires macOS Catalina or later and a Mac with a built-in ambient light sensor. External displays with ambient light sensors are not currently supported.
Below is a non-exhaustive list of Mac models that have been verified to work with DarkModeBuddy. If your Mac is newer than any of the models on the list, it is likely to be supported as well.
  • MacBook Air (M1, 2020)
  • MacBook Air (13-inch, Mid 2013)
  • MacBook Pro (M1, 2020)
  • iMac (Retina 5K, 27-inch, 2020)
  • iMac (27-inch, Late 2012)
  • MacBook Pro 16" (2019)
  • MacBook Pro 16" (2021)
  • MacBook Pro 13" (2019)
  • MacBook Pro 13" (2018)
  • MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports)
  • MacBook Pro (Retina, 15-inch, Mid 2015)
  • MacBook Pro (Retina, 13-inch, Early 2015)
  • MacBook Pro (Retina, 15-inch, Mid 2014)
Pull requests adding support to hardware that's not currently supported are more than welcome.
Download
DarkModeBuddy is available for free (it's also open-source). If you prefer, you can pay any amount you'd like in order to support my work.
You can always get the latest build on Gumroad.
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Switch your Mac's system theme based on the ambient light intensity.
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