Software Alternatives, Accelerators & Startups

draw.io VS ForthWrite

Compare draw.io VS ForthWrite and see what are their differences

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draw.io logo draw.io

Online diagramming application

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
  • draw.io Landing page
    Landing page //
    2023-07-20
  • 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.

draw.io

Website
drawio.com
Pricing URL
-
$ Details
Platforms
-
Release Date
-
Startup details
Country
Germany

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

draw.io features and specs

  • Free
    draw.io offers a free version with extensive features, making it accessible to individuals and small teams without requiring financial investment.
  • User-Friendly Interface
    The platform provides an intuitive drag-and-drop interface that is easy to use for both beginners and advanced users.
  • Collaboration
    It supports real-time collaboration, allowing multiple users to work on the same diagram simultaneously.
  • Integrations
    It integrates seamlessly with popular cloud storage services like Google Drive, OneDrive, and Dropbox, facilitating easy sharing and saving.
  • Versatility
    Draw.io supports various diagram types including flowcharts, UML diagrams, network diagrams, and more, catering to a wide range of use cases.
  • No Installation Required
    As a web-based tool, draw.io does not require any installation, making it accessible from any device with an internet connection.
  • Customizability
    Users can customize shapes, styles, and templates to fit their specific needs, enhancing the utility of the tool.

Possible disadvantages of draw.io

  • Performance Issues
    Users may experience lag or performance issues, especially when working with very large diagrams or on less powerful hardware.
  • Limited Advanced Features
    While suitable for most general uses, draw.io might lack some advanced features available in premium diagramming tools like Visio.
  • Cloud Dependency
    As a cloud-based tool, draw.io requires a stable internet connection for optimal performance, potentially limiting its use in areas with poor connectivity.
  • Privacy Concerns
    Using a cloud service can raise privacy concerns, especially when dealing with sensitive or proprietary information.
  • Learning Curve
    Although user-friendly, becoming proficient with all features and integrations can take some time for new users.

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 draw.io

Overall verdict

  • Yes, draw.io is widely regarded as a good tool for creating diagrams due to its versatility, ease of use, and comprehensive feature set. It is a reliable choice for both individual users and teams requiring collaborative diagramming capabilities.

Why this product is good

  • Draw.io is considered a good tool because it is user-friendly, offers a wide range of features for creating diagrams, and is available as both a web-based application and a desktop app. It supports multiple platforms and a variety of diagram types, including flowcharts, network diagrams, UML, and more. The tool is often praised for its intuitive interface, easy integration with platforms like Google Drive and Microsoft OneDrive, and the fact that it offers a free version without significant limitations.

Recommended for

  • Business professionals who need to create process flows and organizational charts.
  • Software developers and engineers designing network architecture, UML diagrams, or system designs.
  • Students and educators preparing educational materials or collaborative projects.
  • Project managers and teams who need to outline project workflows and timelines.

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

draw.io videos

draw.io - Draw diagrams in the cloud or as an AppImage

More videos:

  • Tutorial - Draw.io Tutorial - Getting Started || How to use Draw.io
  • Review - Creating Entity Relationship Diagrams using Draw.io
  • Review - Using Layers, an advanced draw.io feature
  • Review - Draw.io (aka diagrams.net) Basics
  • Review - Better, faster, stronger; draw.io introduces AI-powered Smart Templates

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to draw.io and ForthWrite)
Diagrams
100 100%
0% 0
Writing Tools
0 0%
100% 100
Flowcharts
100 100%
0% 0
Email
0 0%
100% 100

Questions & Answers

As answered by people managing draw.io 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 draw.io 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 draw.io and ForthWrite

draw.io Reviews

Best Database Diagram Tools: Paid with Free Trials and Free Alternatives
The mission of Diagrams.net is to โ€œprovide free, high quality diagramming software for everyone.โ€ To follow through on this mission, the Diagrams.net team says, โ€œWhen companies pay us money it should be because we add value, not because they are locked in.โ€ So they chose to make a free tool and keep it funded by choosing one ecosystem to charge for (which is Atlassian) while...
5 great diagramming tools for enterprise and software architects
Where do you even begin with Diagrams.net, formerly known as Draw.io? Besides being free of charge, it also has a low learning curve, so anyone can quickly start creating diagrams or whiteboards. Many people use Diagrams.net for diagramming business processes, data flows, and networks. You can also modify elements without having to change the entire diagram with this tool.
Source: www.redhat.com
Software Diagrams - Plant UML vs Mermaid
There are many generic diagramming tools that can be used to design software such as diagrams.net (formerly draw.io), Miro, or Lucid Charts. These generic tools do allow a lot of flexibility but end up costing you more time than you intended to align all boxes and arrows and to get the colour schemes just right.
10 Best Visio Alternatives for Cost Effective Diagramming [2022]
Price may vary from time to time as Draw.io does some promotions and might give discounts as well. You should check their website for the latest prices. Also, the pricing depends upon the features you are taking it for. So, it has very distinctive processing. Youโ€™ll get all your options in the right column and the drawing and editing options youโ€™ll get in the space provided...
Top 10 Alternatives to Draw.io / Diagrams.net - Flowchart Maker Reviews
Drawio is a free online software for creating flowcharts and process maps. It is an easy way to create professional diagrams and share them with your team, your clients, or the whole world. Drawio's user-friendly interface lets you drag and drop shapes from our library onto the canvas and format them using our comprehensive set of tools. Drawing charts has never been easier!...

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, draw.io seems to be more popular. It has been mentiond 716 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.

draw.io mentions (716)

  • Creating Diagrams and Databases with Online Tools
    Draw.io (available at drawio.com) is an online and offline tool that lets you create various types of diagrams, including:. - Source: dev.to / over 1 year ago
  • Random VS Code finds
    During my college days I used to use Drawio to draw wireframes and flowcharts. When I found that there is a VS Code extension that allows me to do it in the IDE it was a no brainer. I have found it is also useful whenever I am screen sharing to use it as a whiteboard during meetings. All you have to do is create a new file with the .drawio extension and you're off to the races. You can then export to .svg and .png... - Source: dev.to / over 1 year ago
  • Reactor controller
    Glad you like it! :D Feel free to reuse/edit it for the Steam page if you want. Also happy to send you the draw.io file if you'd like :). Source: about 3 years ago
  • Note taking app
    Shraing, LDAP, sync, reminders are all possible. draw.io can be integrated by an app in nextcloud. Also, there is "Deck" which is a Kanban board for Nextcloud. Source: about 3 years ago
  • Diagramming on Note 2 Air+
    I've been using draw.io web to diagram, but I can't find it on android... Is there any good alternatives? Source: about 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 draw.io and ForthWrite, you can also consider the following products

LucidChart - LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.

Superhuman - Superhuman is an email management tool.

yEd - yEd is a free desktop application to quickly create, import, edit, and automatically arrange diagrams. It runs on Windows, Mac OS X, and Unix/Linux.

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.

OmniGraffle - OmniGraffle is for creating precise graphics like website wireframes, an electrical system designs, or mapping out software class.

Lavender - Realtime coaching for sales emails.