Software Alternatives, Accelerators & Startups

Night Eye VS ForthWrite

Compare Night Eye VS ForthWrite and see what are their differences

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Night Eye logo Night Eye

Night Eye is a browser extension that enables dark mode on any website you visit. It does not ruin your browsing experience by simply inverting images.

ForthWrite logo ForthWrite

Email that sounds like you, and gets measurably more like you every week. Drafts in Gmail, Outlook, and the browser. Free to start.
Visit Website
  • Night Eye Landing page
    Landing page //
    2023-05-05
  • ForthWrite Landing Page
    Landing Page //
    2026-06-19
  • ForthWrite Dashboard
    Dashboard //
    2026-06-19
  • ForthWrite In Gmail
    In Gmail //
    2026-06-19
  • ForthWrite Pricing
    Pricing //
    2026-06-19

ForthWrite is an AI email writing assistant for Gmail and Outlook that learns your writing style from your real sent mail. The more you use it, the more it sounds like you. Get smart drafts in seconds, auto-draft replies before you open your inbox, and maintain your personal voice at scale. Free to start, no credit card required. Works inside Gmail and Outlook on the web.

How it works

ForthWrite captures your tone, sentence rhythm, and sign-offs from your actual sent emails, then uses that profile to generate drafts that match how you write, not a generic AI voice. Every draft you edit or send improves the model over time.

Key features

  • Auto-draft: replies waiting in Gmail before you open your inbox
  • Voice matching from your real sent mail, not templates
  • Recipient-aware drafts that adapt to who you are emailing
  • Prompt Lab for version-controlling and A/B testing your persona prompt
  • BYOK support: bring your own API key for Claude, OpenAI, Grok, Mistral, and more
  • Works in Gmail and Outlook on the web, plus a standalone browser widget
  • Training data export and full data portability

Who uses it

Professionals who send high volumes of relationship-critical email: lawyers, financial advisors, recruiters, account executives, founders, and anyone who wants their inbox handled without sounding like a chatbot wrote it.

Pricing

Free tier includes 10 drafts per week with no credit card required. Paid plans start at $12/month and include unlimited drafts, custom persona prompts, and auto-draft.

Night Eye

Pricing URL
-
$ Details
-
Platforms
-
Release Date
-

ForthWrite

$ Details
freemium $12.0 / Monthly (Standard plan)
Platforms
Web
Release Date
2026 June
Startup details
Country
United States
State
California
City
San Diego
Founder(s)
Curtis Boortz
Employees
1 - 9

Night Eye features and specs

  • Improved Readability
    Night Eye enhances the readability of web content by converting bright backgrounds to darker colors, reducing eye strain during nighttime or low-light conditions.
  • Customizable Settings
    Users can customize the color schemes and intensity of the dark mode, allowing for a personalized browsing experience that suits different preferences and needs.
  • Wide Browser Support
    Night Eye is compatible with a variety of web browsers, including Chrome, Firefox, Edge, and Safari, making it accessible to a broad user base.
  • Automatic Scheduling
    The extension can automatically switch between dark and light modes based on user-defined schedules or local sunset/sunrise times, providing convenience and flexibility.
  • Improved Battery Life
    On devices with OLED or AMOLED screens, using Night Eye can help extend battery life by reducing screen brightness and using darker colors.

Possible disadvantages of Night Eye

  • Occasional Incompatibility
    Some websites may not render correctly when Night Eye is applied, potentially causing layout issues or missing elements on certain pages.
  • Subscription Model
    While Night Eye offers a free version, some advanced features require a paid subscription, which might deter users who are looking for a completely free solution.
  • Performance Impact
    Running Night Eye can slightly impact browser performance due to the additional processing required to convert page colors, especially on older or less powerful devices.
  • Limited Offline Support
    Certain web applications and offline content may not display correctly with Night Eye, limiting its functionality in environments without internet access.
  • User Interface Limitations
    Some web applications and user interfaces have fixed color schemes that Night Eye cannot alter, reducing its effectiveness on those specific platforms.

ForthWrite features and specs

  • Voice Matching
    Learns from your real sent mail, not templates
  • Auto-draft replies
    Replies waiting in Gmail before you open your inbox
  • Batch-drafting
    Draft replies for your entire inbox with one click
  • Works in browser
    Gmail, Outlook, and web browsers
  • BYOK support
    Claude, OpenAI, Grok, Mistral, and more
  • Prompt Lab
    Version control and A/B test your persona prompt
  • Free tier
    10 drafts per week, no credit card required

Analysis of Night Eye

Overall verdict

  • Overall, Night Eye is considered a good tool for users looking to implement a dark mode across various websites consistently. It effectively transforms bright web pages into more eye-friendly formats, and its consistent updates and support make it a reliable choice.

Why this product is good

  • Night Eye is often praised for its ability to reduce eye strain by providing a dark mode for websites that do not natively support it. It is particularly beneficial for users who spend long hours in front of screens, as it helps to minimize the harshness of bright screens, especially in low-light environments. Additionally, Night Eye offers customization options like brightness, contrast, and blue light filtering, which can further enhance user comfort.

Recommended for

    Night Eye is recommended for individuals who frequently browse the internet at night or in dark environments, individuals who prefer dark modes for aesthetic reasons, and those who experience eye strain from prolonged exposure to bright screens. It's also a great option for users who work late hours and want to reduce the impact of screens on their sleep cycle.

Analysis of ForthWrite

Overall verdict

  • I don't have verified information about a product called ForthWrite (forthwrite.ai). I cannot confirm its features, quality, or reputation, so I'm unable to provide an accurate assessment of whether it's good.

Why this product is good

  • No reliable data available on this specific product in my knowledge base
  • This may be a newer product, a niche tool, or possibly a fictional/hypothetical name
  • Providing details without verified information could result in inaccurate or fabricated claims

Recommended for

  • Unable to determine without verified product information
  • Consider checking the official website, user reviews on platforms like G2 or Trustpilot, and independent tech review sites for accurate details

Night Eye videos

Night eye original vs fake ?

More videos:

  • Review - fake night eye led | fake vs original led light | Born Creator
  • Demo - Night Eye - Dark mode on any website

ForthWrite videos

No ForthWrite videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to Night Eye and ForthWrite)
Dark Mode
100 100%
0% 0
Email
0 0%
100% 100
Browser Extensions
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Night Eye and ForthWrite.

Which are the primary technologies used for building your product?

ForthWrite's answer:

Next.js, React, Supabase, Anthropic Claude, OpenAI, Stripe, Vercel, Chrome Extensions API

What makes your product unique?

ForthWrite's answer:

ForthWrite learns your writing style from your actual sent mail, not a generic prompt. Every draft sounds like you wrote it because it was trained on how you actually write. It also auto-drafts replies before you open your inbox, so your email is partially handled before your day starts.

Why should a person choose your product over its competitors?

ForthWrite's answer:

Most AI email tools give you a blank box and a "write for me" button. ForthWrite builds a voice profile from your sent history and gets more accurate with every draft you edit or send. Unlike ChatGPT or Gemini, it works natively inside Gmail and Outlook with no copy-paste. Unlike Lavender, it writes the draft, not just scores it.

How would you describe the primary audience of your product?

ForthWrite's answer:

Professionals who send high volumes of relationship-critical email and cannot afford to sound generic: lawyers, financial advisors, recruiters, account executives, consultants, and founders managing their own inbox.

What's the story behind your product?

ForthWrite's answer:

Built out of frustration with AI writing tools that produce text that sounds nothing like the person sending it, and as a way to handle large amounts of daily email. The core insight was that your sent mail is the best training data you already have, and no tool was using it.

User comments

Share your experience with using Night Eye and ForthWrite. For example, how are they different and which one is better?
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Reviews

These are some of the external sources and on-site user reviews we've used to compare Night Eye and ForthWrite

Night Eye Reviews

7 Best Dark Mode Extensions For Chrome
Change the settings for each webpage to dark or light mode as desired. Night Eye can help you take care of your eyes and prevent eye strain.
Source: thedroidguy.com
Top 8 Dark Mode Extensions for Chrome Browser
Night Eye is a Google Chrome browser extension that enables night mode on any website using its new algorithm that analyses and converts all colors without inverting them. Cool, isnโ€™t it? The Night Eye extension protects your eyes strain, and the best part is that not only it works on Chrome but also supports Mozilla Firefox, Microsoft Edge, Safari, Opera, Yandex, UC,...
The 10 best dark mode extensions for Google Chrome in 2022
Night Eye takes a single-off approach to each web page depending upon its original colors. It uses classifiers to estimate which form of dark mode would be able to provide a smooth and consistent display. This also eliminates any bright spots or flashes because of simple page inversions. Besides, if it fluctuates in performance, you are provided with an internal chat system...
Source: chromeready.com

ForthWrite Reviews

  1. curtisboortz
    ยท Founder at ForthWrite ยท
    I built ForthWrite to fix generic AI email, and I still use it every day

    I built ForthWrite because I kept sending emails that sounded like they came from the same generic AI as everyone else. After launching it, I still use it for my own inbox every day, which is about the most honest endorsement I can give.

    The Chrome extension lives inside Gmail and Outlook on the web. Open a thread, hit Alt+Shift+D, and a draft comes back in your voice, not a template. The free tier is real: 10 drafts per week, no API key, no credit card. Voice matching is included on free, because that is the point.

    What keeps it useful compared to Gemini or a chat tab: it learns from what you actually send. Every edit you make before hitting send becomes a signal. Over time the drafts drift closer to how you really write, and the dashboard shows the improvement curve so you can see it happening.

    The web compose surface lets you draft from forthwrite.ai without installing anything, useful for people who want to try before committing to the extension.

    Standard adds recipient-aware and intent-aware drafting plus AI coaching. Pro adds auto-draft (replies waiting when you open Gmail), batch replies, and Prompt Lab for version-controlling your prompts. Teams adds a shared persona and seat-level analytics.

    ForthWrite is not for everyone. If you just need quick replies and tone does not matter, Gemini is free and already in your inbox. ForthWrite is for people where tone does matter: client communication, relationship-driven threads, external correspondence where sounding off costs something real.

    Disclosure: I am the founder and use it daily. Happy to answer questions in the comments.

    ๐Ÿ Competitors: Jace.ai, Fyxer, Mailmeteor
    ๐Ÿ‘ Pros:    Drafts land inside gmail and outlook; no copy-pasting from a chat window|Voice matching is on the free tier, not paywalled behind paid plans|No api key, no credit card to start; free tier runs on a server-side proxy|Learns from every edit you make before sending; drafts improve over time|Full keyboard flow: alt+shift+d to draft in any thread, no mouse required|Byok on paid plans, 9 providers supported, keys encrypted at rest|Web compose at forthwrite.ai works without installing the extension at all
    ๐Ÿ‘Ž Cons:    10 free drafts/week is enough to evaluate, not enough for a heavy inbox|Auto-draft, batch replies, and prompt lab all require the pro tier|Early-stage product; fewer third-party integrations than mature inbox tools|No mobile app: the extension and add-in are desktop-only (chrome on web, or the outlook desktop add-in)

Social recommendations and mentions

Based on our record, Night Eye seems to be more popular. It has been mentiond 9 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Night Eye mentions (9)

  • Best Dark Mode Safari Extension for iOS?
    Https://nighteye.app - works great for me. I rarely find a website, that's not properly converted. If I do - the team fixes it with their regular updates. Source: about 3 years ago
  • What is your favorite dark mode extension for Safari?
    Https://nighteye.app - works great! Source: about 3 years ago
  • The Supersecret 10 Discs at a Time Plan! ;)
    By the way, try Night Eye if you don't like glaring white backgrounds. Source: about 3 years ago
  • IT Pro Tuesday #249 - NAS Tool, Linux News, PowerShell Wargames & More
    Night Eye is a tool that can enable dark mode on any website. Analyzes the colors on each page and converts them intelligently to provide a smooth and consistent dark mode, with no bright spots or flashes. Our thanks for this suggestion go to Wdrussell1. Source: over 3 years ago
  • Best Windows screensaver for an OLED
    Things I've done: - 5 minute screen off timeout. - Auto-hide taskbar. - Dark wallpaper, dark theme. - Night mode browser extension. - LGTVCompanion to handle the automatic on/off without the remote. Source: over 3 years ago
View more

ForthWrite mentions (0)

We have not tracked any mentions of ForthWrite yet. Tracking of ForthWrite recommendations started around Jun 2026.

What are some alternatives?

When comparing Night Eye and ForthWrite, you can also consider the following products

Dark Reader - Reduce eye strain in your browser with this extension that provides a dark theme for browsing.

ReclaimAI - Helps users prioritize their work and personal calendars

Midnight Lizard - Accessible color schemes for all websites

Superhuman - Superhuman is an email management tool.

Dark Mode - A global dark theme for the web

Shortwave - Email smarter & faster with a reinvented experience for your Gmail