All 100 ideasBrowser
#43 of 100 · Browser
Restyle any website your way
An extension to apply their own or shared CSS to any site, for dark mode, plainer layouts and readable colours and fonts.
Asks per year
What the askers want
- Would pay17%
- Want it local or private25%
- Object to subscriptions0%
- Want it open source or self-hosted0%
- Want AI to do it0%
Share of the 12 asks that say so, as judged by Jev.
What exists on Show HN
Built, still asked for3 Show HN launches do this job, and 5 more do part of it. People still ask, so the launches are missed, unknown, or not what they want. Ask what they’re missing before you build.
- Dark Reader extension – Dark mode for every website2018 · 369 pts
- Stylebot 4 – restyle any website, by hand or with your coding agent2026 · 2 pts
- Stylebot Social, share and install custom CSS for sites2011 · 1 pts
Instead of: Stylish, Gmail
The idea, as matched
A browser extension that restyles any site with my own or community-shared CSS themes, including dark mode, e-ink and simplified layouts, synced across devices.
Jev first matched 21 requests to this idea; a second reader kept 12 of 21.
Every ask, newest first
Each line is an AI paraphrase of what the writer wanted. The link goes to their own words on Hacker News.
Reader’s note. Scattered small asks; almost no one mentions sync.
- Dec 2025Wants a browser extension that turns random blogs into a single-page, widescreen layout automatically. Read it: a comment in “Beej's Guide to Learning Computer Science”
- May 2025Would pay for an e-ink style reading mode as a Safari extension. Read it: a comment in “Eink Mode's Browser Extension Is Now Available”
- Aug 2024Wants an iOS dark mode extension that does not turn math formulas black on black. Read it: a comment in “Evaluating a class of infinite sums in closed form”
- Jun 2023Asks for Chrome or Safari extension recommendations for adding custom CSS to websites. Read it: a comment in “Lemmy stats (users, posts, nodes, comments)”
- Mar 2021Wants a Firefox plugin that applies a specific pleasant color scheme to every site, beyond Safari's reader sepia. Read it: a comment in “Bats and the Origin of Outbreaks”
- Apr 2020Wants a browser extension that strips italics from every site. Read it: a comment in “Unauthorized access to cameras in Safari on macOS and iOS”
- Jan 2020Uses Stylus to clean up ad-like search pages and wants a shared repository where people exchange CSS fixes. Read it: a comment in “Every Google result now looks like an ad”
- Apr 2019Wants a styling extension for Gmail's basic HTML view. Read it: a comment in “How to use Gmail more efficiently (2013)”
- Jul 2018Might pay for a browser that renders every site in a brutalist design. Read it: a comment in “Guidelines for Brutalist Web Design”
- Jan 2018Asks for a Firefox version of a pink Hacker News theme extension. Read it: a comment in “Show HN: HNCute, a pretty pink Hacker News theme”
- Mar 2013Wants a Stylish alternative for Firefox, with syntax highlighting and a way to share styles. Read it: a comment in “My Style: Custom CSS for unappealing sites you visit”
- Mar 2009Wants a Greasemonkey script that turns all low-contrast text black. Read it: a comment in “Why Mahalo employed a felon hacker”
Building this?
Read ten of the asks above first, because they say what the existing launches miss. If you ship it, post it as a Show HN so the next run of this list finds it.
Ship it like Vercel, on a server you own
This site runs on ShipTiffin. A push to GitHub deploys it, the way it would on Vercel, but the server is a Hetzner box in your own account. Postgres, sign-in, email, jobs and analytics are already on it, every project gets a hard limit, and nothing is billed by usage.
$19 a month per box, plus about $10 for the server at Hetzner. Open source, so you can also run it yourself for free.