Night Eye
Night Eye is a browser extension that enables dark mode on any website via an adaptive color-conversion algorithm. Operated by Promotino Ltd., it serves consumers seeking reduced eye strain during extended browsing, distributed through freemium subscription tiers across 10+ browser marketplaces globally.
- Company typePrivate
- Founded2018
- HeadquartersLondon, United Kingdom
- Headcount1–10
- GTM typeB2C
- OfferingSoftware
What Night Eye does
Night Eye is a consumer browser-extension company that enables dark mode on any website through an adaptive color-conversion algorithm rather than simple color inversion. Founded in 2018 and operated by Promotino Ltd., headquartered in Sofia, Bulgaria (legal entity VAT BG203755878), the company serves individual consumers who spend extended hours browsing the web and want to reduce eye strain, headaches, and blue-light exposure. The extension is distributed across 10+ browser marketplaces including Chrome Web Store, Firefox Add-ons, Microsoft Edge Add-ons, Safari App Store, Opera Add-ons, Naver Whale store, plus Android, Vivaldi, Yandex, UC Browser, Brave, and Coc Coc.
The core technology analyzes each webpage's color palette and converts it element-by-element to a dark theme, avoiding the bright-spot artifacts and flash effects typical of inversion-based dark modes. The platform includes image-conversion logic that selectively transforms small UI images and icons while preserving photographs and significant media. It supports OS-level color-scheme synchronization with Windows and macOS plus Chrome and Opera browser palettes, scheduled dark-mode toggling, per-website customization, brightness/contrast/saturation controls, screen dimming, and a blue-light filter. Deep-integration features control built-in dark modes on YouTube, Twitter, and Reddit by modifying site cookies and localStorage. GDPR, CCPA, and PCI DSS (third-party processor) compliance is claimed, with no collection of personally identifiable information and no storage of browsing activity.
The company operates a pure freemium B2C subscription model with four tiers: Lite (free, 1 browser, 5 websites), Pro ($9/year, 3 browsers, unlimited websites), Pro Max ($14/year, 6 browsers), and Ultimate ($40 one-time, 10 browsers, lifetime). Distribution is entirely self-serve through browser extension stores and a direct website download. Go-to-market is product-led with content marketing via a dark-mode tutorial blog, YouTube videos, organic social on Twitter and Facebook, an affiliate program, and earned media coverage from TechRadar, Chrome Unboxed, Windows Central, Lifehacker, and Indie Hackers. Adjacent products span Shopify dark mode, a WordPress plugin, Gmail dark mode, an Android version, a Safari-specific build, an XML dark mode tool, a CSS dark mode generator, a page-source dark viewer, and a branded merchandise store. The company claims over 1,000,000 daily users and operates from a 1-10 person team with no disclosed outside funding.
Night Eye firmographics
Firmographics- Name
- Night Eye
- Legal name
- Promotino Ltd.
- Website
- https://nighteye.app
- Company type
- Private
- Founded year
- 2018
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Night Eye is a browser extension that enables dark mode on any website via an adaptive color-conversion algorithm. Operated by Promotino Ltd., it serves consumers seeking reduced eye strain during extended browsing, distributed through freemium subscription tiers across 10+ browser marketplaces globally.
- Ownership category
- akta.pro rank
Where Night Eye is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Night Eye business model
Business model- GTM type
- B2C
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Marketing or Sales, Operations, Infrastructure
Revenue model
- Browser Extension Subscription: Freemium model with free Lite tier limited to 1 browser and 5 websites. Paid tiers (Pro, Pro Max, Ultimate) provide increasing browser and website limits. Pro ($9/year) for up to 3 browsers and unlimited websites. Pro Max ($14/year) for up to 6 browsers. Ultimate ($40 one-time) for up to 10 browsers with lifetime access.
- Affiliate Program: Referral/affiliate program where partners earn commissions for driving installations and subscriptions
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Pay-as-you-go | Lite - Free tier with limited dark mode features |
| Subscription | Annual | Pro - $9/year with expanded browser and website limits |
| Subscription | Annual | Pro Max - $14/year for power users |
| One time/ perpetual license | Pay-as-you-go | Ultimate - $40 one-time lifetime license |
Go-to-market motion1 record
Distribution channels7 records
Marketing channels7 records
Night Eye product offering
Product offeringCore offering
Night Eye is a cross-browser extension that converts any website into a smooth, consistent dark mode using an adaptive color conversion algorithm that analyzes page colors rather than applying a simple color inversion. It is offered in a freemium model (Lite free) and paid subscription tiers (Pro, Pro Max annual; Ultimate lifetime), distributed through all major browser extension marketplaces and available globally across 10+ browsers plus Android, with platform-specific dark mode products for Shopify stores and WordPress sites.
Product overview
Night Eye is a browser extension company offering dark mode solutions across multiple platforms. The core product is the Night Eye Browser Extension (Dark Mode - Night Eye) which converts website colors to dark mode using intelligent color analysis rather than simple inversion. The extension is available on all major browsers (Chrome, Firefox, Edge, Safari, Opera, Vivaldi, Yandex, UC Browser, Brave, Naver Whale) as well as Android. Pricing tiers include: Lite (free, 1 browser, 5 websites), Pro ($9/year, 3 browsers, unlimited sites), Pro Max ($14/year, 6 browsers), and Ultimate ($40 one-time, 10 browsers). Additional products include platform-specific dark mode solutions for Shopify Store, WordPress Plugin, Gmail, and XML-based websites, plus utility tools like CSS Dark Mode Generator and Dark Mode Source Viewer.
Differentiator
Problem solved
Functional benefit
Products and services
- Night Eye Browser Extension (Dark Mode - Night Eye) Core cross-browser extension that converts any website into a smooth, consistent dark mode using an adaptive color conversion algorithm (rather than simple inversion); includes customization controls, blue light filtering, OS/browser sync, deep integration with YouTube/Twitter/Reddit native dark themes, and direct in-extension support. Distributed across Chrome, Firefox, Safari, Edge, Opera, Vivaldi, Brave, Yandex, UC Browser, Coc Coc, QQ Browser, and Naver Whale.
- Night Eye for Shopify Store Dark-mode solution built specifically for Shopify e-commerce storefronts, allowing store owners to offer site visitors a dark viewing mode without custom coding.
- Dark Mode - Night Eye WordPress Plugin WordPress plugin that adds dark mode functionality to WordPress-powered websites, targeting site owners who want a low-code dark mode roll-out.
- CSS Dark Mode Generator Standalone web tool that generates custom CSS dark mode styles for users who want to implement dark mode on their own websites.
- Dark Mode Source Viewer Standalone tool for viewing page source code rendered in dark mode styling, aimed at developers and site inspectors.
- Night Eye for Android Android-targeted dark-mode extension for mobile browsers, providing the same adaptive color conversion on Android smartphones.
- Night Eye for Safari Dedicated Safari extension distributed via the Mac App Store, tuned for macOS Safari browsers with platform-specific activation instructions.
Quantifiable outcome
- Reduces eye strain, headaches, and watery eyes from 10-12 hours daily screen use
- +1 more outcomes
Companies that use Night Eye
Customer profileNamed customers6 records
Segments2 records
Ideal customer profiles2 records
Night Eye technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration7 records
Feature10 records
Night Eye partnerships and signals
Strategic signalScale indicators2 records
Recent moves6 records
Expansion highlights6 records
Night Eye competitors and assessment
Company assessmentEmerging players
- Stylus: Open-source browser extension for applying custom user stylesheets, often used to inject dark themes on websites. Serves a power-user segment adjacent to Night Eye's customization features.
- WP Dark Mode (WordPress plugin ecosystem): WordPress plugin providing site-level dark mode for publishers, competing with Night Eye's WordPress Plugin offering in the publisher/merchant use case.
Direct peers
- Midnight Lizard: Browser extension that applies custom dark themes and color modifications to websites. Overlaps with Night Eye's color-changer and per-site customization features for users wanting granular control.
- Super Dark Mode: Paid browser extension offering dark mode across websites with feature tiers comparable to Night Eye. Competes directly on the same product positioning (smart dark mode for any site) and price points.
- Deluminate: Browser extension that inverts colors on websites to provide dark mode. Explicitly named by a Night Eye customer as a previous tool they switched away from, confirming head-to-head competition in the dark-mode extension category.
- Dark Reader: Free, open-source browser extension that applies dark mode to websites. It is the most-cited direct competitor to Night Eye, competing for the same browser-extension dark-mode use case with a no-cost model.
- Turn Off the Lights: Long-running browser extension best known for dimming page backgrounds for video viewing, with adjacent dark-mode and eye-comfort features. Competes for the same eye-strain reduction use case on browser video and reading experiences.
Broad incumbents
- Dark Mode for Safari (Apple native): Apple's built-in Safari dark mode and macOS system-wide dark theme. It does not sell a product but provides a free, default dark-mode experience that overlaps with Night Eye's value proposition on Apple platforms.
Others
- uBlock Origin: Popular privacy- and ad-blocking browser extension. Adjacent rather than directly competing, but shares the same browser-extension marketplace and the same privacy-conscious user persona that Night Eye targets.
Regional players
- Shopify Dark Mode (eCommerce apps): Marketplace of dark-mode apps for Shopify merchants that overlap with Night Eye's Shopify Store product. They compete for the same merchant install slot on the Shopify platform.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
Night Eye social profiles
Digital presenceNight Eye compliance and trust
Trust signalCompliance3 records
Night Eye financial estimates
Financial estimateRevenue estimate
Valuation estimate
Night Eye leadership team
Management profileNumber of profiles
Night Eye funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Night Eye M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Night Eye
What does Night Eye do?
Night Eye is a cross-browser extension that converts any website into a smooth, consistent dark mode using an adaptive color conversion algorithm that analyzes page colors rather than applying a simple color inversion. It is offered in a freemium model (Lite free) and paid subscription tiers (Pro, Pro Max annual; Ultimate lifetime), distributed through all major browser extension marketplaces and available globally across 10+ browsers plus Android, with platform-specific dark mode products for Shopify stores and WordPress sites.
Is Night Eye a public or private company?
Night Eye is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Night Eye founded?
Night Eye was founded in 2018. It employs 1 to 10 people.
Where is Night Eye based?
Night Eye is headquartered in London, United Kingdom, in the Europe region.
How does Night Eye make money?
Two revenue lines are on record. Browser Extension Subscription is the primary driver. The others are affiliate Program.
Who are Night Eye's main competitors?
Emerging players on record are Stylus and WP Dark Mode (WordPress plugin ecosystem). Direct peers are Midnight Lizard, Super Dark Mode, Deluminate, Dark Reader and Turn Off the Lights. Dark Mode for Safari (Apple native) is listed as a broad incumbent. uBlock Origin is listed as an others. Shopify Dark Mode (eCommerce apps) is listed as a regional player.
Does Night Eye have an API?
No public API is recorded for Night Eye.