Software Alternatives, Accelerators & Startups

jsPlumb VS ForthWrite

Compare jsPlumb VS ForthWrite and see what are their differences

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jsPlumb logo jsPlumb

jsPlumb is an advanced, standards-compliant and easy to use JS library for building connectivity based applications, such as flowcharts, process flow diagrams, sequence diagrams, organisation charts, etc. More than just a diagram library.

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.
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  • jsPlumb Chatbot Builder
    Chatbot Builder //
    2025-04-23
  • jsPlumb Active Filtering
    Active Filtering //
    2025-04-23
  • jsPlumb Flowchart Builder
    Flowchart Builder //
    2025-04-23
  • jsPlumb Hello World
    Hello World //
    2025-04-23
  • jsPlumb Gantt Chart
    Gantt Chart //
    2025-04-23
  • jsPlumb Hierarchy Layout
    Hierarchy Layout //
    2025-04-23
  • jsPlumb Mindmap Builder
    Mindmap Builder //
    2025-04-23
  • jsPlumb Org Chart
    Org Chart //
    2025-04-23
  • jsPlumb Schema Builder
    Schema Builder //
    2025-04-23
  • jsPlumb Path Tracing
    Path Tracing //
    2025-04-23
  • jsPlumb Call Flow Builder
    Call Flow Builder //
    2025-04-23
  • jsPlumb Network Topology
    Network Topology //
    2025-04-23

Build connectivity quickly. Powerful and flexible library for diagramming and rich graphical front ends. JsPlumb contains everything you need to build an application with visual connectivity: pan/zoom, a minimap widget, automatic layouts, data binding, and more. Deep integration with Angular, React, Svelte and Vue.

Cut your time to market by focusing on what makes your app unique and leave the boring stuff to us.

  • 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.

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

jsPlumb features and specs

  • Ease of Use
    jsPlumb provides a straightforward API that simplifies making interactive and dynamic visualizations. It's easy to understand and quick to implement for creating diagrams and flowcharts.
  • Rich Feature Set
    The library offers a wide range of features, including various endpoint and connector types, overlays, and a robust event handling system, making it versatile for different types of projects.
  • Extensive Documentation and Examples
    jsPlumb offers thorough documentation and a variety of example projects, which help developers get started and serve as a resource for troubleshooting and implementing more complex functionality.
  • Cross-Browser Compatibility
    It supports major browsers and ensures consistent behavior across different platforms, which is essential for web applications.
  • Customizable
    With its customizable options, developers can tailor the appearance and behavior of connections and components to fit the specific needs of their application.

Possible disadvantages of jsPlumb

  • Paid Toolkit for Advanced Features
    While the community edition is free, access to some advanced features and support requires purchasing the commercial toolkit, which might be a barrier for some developers or smaller projects.
  • Complexity With Large Diagrams
    As diagrams scale up in complexity, the library may require significant fine-tuning and optimization, potentially increasing development time.
  • Dependency Management
    Managing dependencies can become a concern in larger applications, especially if multiple libraries are being used alongside jsPlumb.
  • Performance Overhead
    In scenarios with very high numbers of connections and nodes, performance issues may arise, necessitating additional performance optimization considerations.
  • Learning Curve for Customization
    Though the basic setup is straightforward, deep customization requires a more thorough understanding of the libraryโ€™s API and structure, which can take time to learn.

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 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

Category Popularity

0-100% (relative to jsPlumb 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 jsPlumb and ForthWrite.

Why should a person choose your product over its competitors?

jsPlumb's answer

The flexibility and deep integration of the library is what most clients love. jsPlumb also offers also quick help and support. Wide range of features. Powerful with integration to common web frameworks. Good examples. Support for HTML & SVG.

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.

Who are some of the biggest customers of your product?

jsPlumb's answer

Apple, Walmart, Siemens, Oracle, Cisco, Credit Suisse.

What makes your product unique?

jsPlumb's answer

JsPlumb is a JavaScript library that simplifies creating visual connections between elements in a web application. It is particularly popular for building applications with drag-and-drop interfaces, workflow editors, process modeling tools, or any system where you need to visualize relationships between elements.JsPlumb is designed to work seamlessly across modern browsers, ensuring that your application delivers a consistent user experience to all users.

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.

How would you describe the primary audience of your product?

jsPlumb's answer

JsPlumb's primary audience consists of developers and organizations that need to create visual representations of relationships or workflows in web applications. Web Application Developers, Software Companies, Designers and Engineers of Interactive Tools, Educational and Research Platforms, Enterprises Needing Custom Solutions, Developers Needing Quick Prototyping,Data Visualization Professionals.

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.

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'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 jsPlumb 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 jsPlumb and ForthWrite

jsPlumb Reviews

20+ JavaScript libraries to draw your own diagrams (2022 edition)
jsPlumb provides a fast way of building applications with visual connectivity at their core. s. It uses SVG and runs on all browsers from IE9 and later. JsPlumbToolkit is its commercial extension. This commercial version wraps the Community edition with a focus on the underlying data model, as well as several useful UI features such as layouts, and a widget that offers...

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, jsPlumb 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.

jsPlumb mentions (5)

  • Do you know any good libraries to make those kind of graph?
    I have looked into https://jsplumbtoolkit.com/ for a couple of projects and it seemed pretty good but it was a pure JS library 'community edition' with a commercial version that had all the nice framework integration for React and Angular. Source: over 3 years ago
  • Low-code development (Node-RED alternative)
    A pretty common one is jsPlumb - https://jsplumbtoolkit.com/ - might be what you're looking for. I'm sure there are others as well. - Source: Hacker News / over 3 years ago
  • Library suggestions for creating unidirectional graphs or flowcharts.
    Check out https://jsplumbtoolkit.com/. Source: over 3 years ago
  • Is there any node graph library for svelte?
    Amazing!!! I am looking specifically for something like react flow as well. After looking into it the best option might be jsplumb. Source: over 4 years ago
  • Creating a drag and drop platform with python
    Hey, finally I found https://jsplumbtoolkit.com/ who seems to be the best solution for that. 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 jsPlumb and ForthWrite, you can also consider the following products

GoJS - GoJS is a JavaScript library for building interactive diagrams on HTML web pages. Build apps with flowcharts, org charts, BPMN, UML, modeling, and other visual graph types.

Superhuman - Superhuman is an email management tool.

mxGraph - mxGraph is a fully client side JavaScript diagramming library - jgraph/mxgraph

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.

Paper.js - Open source vector graphics scripting framework that runs on top of the HTML5 Canvas.

Lavender - Realtime coaching for sales emails.