Software Alternatives, Accelerators & Startups

Pixi.js VS ForthWrite

Compare Pixi.js VS ForthWrite and see what are their differences

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Pixi.js logo Pixi.js

Fast lightweight 2D library that works across all devices

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
  • Pixi.js Landing page
    Landing page //
    2023-10-14
  • 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.

Pixi.js

Website
github.com
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

Pixi.js features and specs

  • High Performance
    Pixi.js utilizes WebGL to deliver high-performance rendering, which is ideal for building fast and responsive web applications and games.
  • Cross-Platform
    It supports multiple platforms, allowing developers to build applications that work seamlessly across different devices, including desktops, tablets, and smartphones.
  • Extensive Documentation
    Pixi.js has comprehensive and well-documented resources that help developers understand how to use the library effectively, including tutorials and examples.
  • Rich Feature Set
    The library comes with a wide range of features such as textures, sprites, and filters, enabling developers to create visually complex and appealing content.
  • Active Community
    Pixi.js benefits from a large and active community, which means frequent updates, a wealth of plugins, and abundant community support.
  • Open Source
    As an open-source library, Pixi.js is free to use and modify, making it accessible to developers with different levels of expertise and budgets.

Possible disadvantages of Pixi.js

  • Learning Curve
    Despite its extensive documentation, beginners may find Pixi.js challenging to learn and integrate into their projects because of its extensive feature set.
  • WebGL Dependencies
    While WebGL provides high performance, it can also cause compatibility issues on older devices or browsers that do not fully support WebGL.
  • Limited 3D Capabilities
    Pixi.js is primarily a 2D rendering engine, so it may not be suitable for projects that require advanced 3D graphics and interactions.
  • Size
    Compared to simpler libraries, Pixi.js can be relatively large in terms of file size, which could impact the loading times of web applications, especially on slower networks.
  • Complex Debugging
    Debugging issues in Pixi.js can be complex, especially in large applications, as it often involves low-level graphics operations and WebGL debugging tools.

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 Pixi.js

Overall verdict

  • Yes, Pixi.js is generally considered a good choice for 2D graphics rendering on the web.

Why this product is good

  • Performance: Pixi.js is known for its fast 2D rendering performance, leveraging WebGL and falling back to HTML5 Canvas when necessary.
  • Ease of Use: It has a straightforward API, which makes it accessible for both beginners and experienced developers.
  • Community: There's a strong and active community around Pixi.js, providing plenty of resources, plugins, and support.
  • Features: It offers a robust set of features for 2D graphics, including support for sprites, text, animation, and interaction.
  • Cross-Platform: Pixi.js works across different devices and browsers, ensuring broad compatibility.

Recommended for

  • Game Developers: Those looking to create 2D games with efficient rendering.
  • Web Developers: Developers needing to incorporate graphics or animations into their web projects.
  • Digital Artists: Artists wanting to create interactive experiences or digital art pieces.
  • Educators: Those educating others in graphics programming or web development.

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

Pixi.js videos

PixiJS Crash Course

ForthWrite videos

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

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Category Popularity

0-100% (relative to Pixi.js and ForthWrite)
Javascript UI Libraries
100 100%
0% 0
Writing Tools
0 0%
100% 100
Development
100 100%
0% 0
Email
0 0%
100% 100

Questions & Answers

As answered by people managing Pixi.js 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

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Reviews

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

Pixi.js Reviews

We have no reviews of Pixi.js yet.
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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, Pixi.js seems to be more popular. It has been mentiond 5 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.

Pixi.js mentions (5)

  • Release Radar โ€ข March 2024 Edition
    If you're into video game dev, then PixiJS is something you need to know about. It's a HTML5 game engine that provides a lightweight 2D library across all devices. This latest update has a new package structure, custom builds, graphics API overhaul, and lots more. You can read about all these changes in the PixiJS Migration Guide. Also big congrats to PixiJS for being part of the open source community for ten... - Source: dev.to / over 2 years ago
  • Advice about useful libraries to create a 2D car game (hill climb racing style)
    I would need a renderer to display the graphics of my calculations on the "backend". After some research I think pixijs which is written in TS could be a great tool. Source: about 3 years ago
  • Is programming just not for me?
    And if that seems to up your alley you could look into Javascript game/renderer frameworks. They have 2D engines like https://github.com/photonstorm/phaser or https://github.com/pixijs/pixijs . Or my personal choice A-Frame which is a 3D, AR and VR engine (XR) https://github.com/aframevr/ . Source: over 3 years ago
  • Pixie โ€“ A full-featured 2D graphics library for Nim
    This has a high risk of being confused with pixi.js: https://github.com/pixijs/pixijs. - Source: Hacker News / almost 5 years ago
  • Custome game engine: what stack ?
    WebGL, I hear, has a similar API to OpenGL. (Also, WebGPU is coming at some point.) Or, you could use a thin library that handles the WebGL drawing of sprites for you. I prefer that option over using a full game engine: I find it's better to only include dependencies when they become necessary. I recently tried a web rendering library called PixiJS, and it seemed like a pretty clean and nice-sized API, and... Source: about 5 years ago

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 Pixi.js and ForthWrite, you can also consider the following products

D3.js - D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS.

Superhuman - Superhuman is an email management tool.

p5.js - JS library for creating graphic and interactive experiences

Gemini - Gemini, formerly known as Bard, is a generative artificial intelligence chatbot developed by Google. Based on the large language model (LLM) of the same name, it was launched in 2023 in response to the rise of OpenAI's ChatGPT.

Anime.js - Lightweight JavaScript animation library

Lavender - Realtime coaching for sales emails.