Software Alternatives, Accelerators & Startups

ShareX VS ForthWrite

Compare ShareX VS ForthWrite and see what are their differences

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ShareX logo ShareX

ShareX is a free and open source program that lets you capture or record any area of your screen...

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
  • ShareX Landing page
    Landing page //
    2022-10-29
  • 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.

ShareX

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

ShareX features and specs

  • Free and Open Source
    ShareX is completely free and the source code is open to the public. This allows for community contributions, and users can trust that there are no hidden costs or malware.
  • Feature-Rich
    ShareX offers a wide range of features including screen capture, video recording, GIF creation, and various upload methods to many different services.
  • Customization
    The software provides extensive customization options, allowing users to tailor their workflows to their specific needs. This includes hotkeys, automated tasks, and image editing on-the-fly.
  • Various Output Formats
    Users can save their captures in multiple formats such as PNG, JPEG, GIF, and more. This makes it versatile for different use cases.
  • Automated Processes
    ShareX can automate various processes such as uploading to cloud services, copying URLs, and performing file operations. This enhances productivity and saves time.
  • Regular Updates
    The application receives regular updates, ensuring that it keeps up with new technology and user requirements.

Possible disadvantages of ShareX

  • Complexity
    With its wide array of features, ShareX can be complex and overwhelming for new users. The interface might take some time to get used to.
  • Windows-Only
    ShareX is only available for Windows. Users on other operating systems like macOS or Linux will not be able to use it natively.
  • Occasional Bugs
    Some users report occasional bugs or instability, which may require troubleshooting or waiting for updates to resolve.
  • Steep Learning Curve
    Due to its extensive features and customization options, there is a steep learning curve for users who want to make the most out of all functionalities.
  • Third-Party Dependencies
    Some features may rely on third-party services or frameworks, which can lead to complications or additional configuration steps.

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 ShareX

Overall verdict

  • ShareX is a robust and versatile tool for anyone in need of an advanced screen capture and file-sharing software. Its open-source nature and no-cost usage make it an attractive choice for casual users and professionals alike. With a little time spent on exploring its features, users can unlock a powerful toolset that can greatly enhance productivity.

Why this product is good

  • ShareX is considered good by many due to its extensive range of features for screen capturing, file sharing, and productivity. It is an open-source tool, which means it's free to use and has a strong community of contributors who constantly update and improve the software. The application supports multiple capture methods, including full screen, active window, or specific region. It also provides editing tools, annotations, and supports various file formats. Additionally, ShareX offers seamless integration with many cloud storage and file-sharing services, allowing for easy sharing and storage of captures.

Recommended for

  • Tech enthusiasts who appreciate open-source software.
  • Content creators who need extensive screen capturing and editing capabilities.
  • Professionals who require quick sharing of visual content with clients or teams.
  • Educators and trainers creating instructional content.
  • Remote workers who frequently share screenshots or screen recordings with colleagues.

ShareX videos

Here's why you should download ShareX.

More videos:

  • Review - Simple Screenshots & Screen Recording โ€” Why You Should Use ShareX
  • Tutorial - ShareX Install and How to use Guide 2019

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to ShareX and ForthWrite)
Screenshots
100 100%
0% 0
Writing Tools
0 0%
100% 100
Screenshot Annotation
100 100%
0% 0
Email
0 0%
100% 100

Questions & Answers

As answered by people managing ShareX 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 ShareX 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 ShareX and ForthWrite

ShareX Reviews

Reliable Screen Recorders for Clear Visual Communication
ShareX (Windows) โ€“ Tiny footprint, hot-key driven, and excellent for quick bug videos or GIFs. Youโ€™ll annotate in an external app if you need arrows or text.
Finding a Screen Recorder That Wonโ€™t Give You a Headache
ShareX โ€” Windows-only, tiny app, hot-key everything. Perfect for testers: press a combo, capture a GIF of the bug, auto-upload it, and paste the link in under a minute.
Source: medium.com
Practical Free Screen Recorders for Everyday Projects
Choosing the right free screen-recording tool boils down to your daily routine. If you work in short bursts and value instant sharing, ScreenRec is tough to beat. Need layered scenes or live streaming? OBS is waiting. Prefer a tiny utility for lightning-fast bug captures? ShareX has you covered. Test one or two, keep the one that feels natural, and youโ€™ll spend less time...
Source: medium.com
Comparing Free Screen Recorders for Everyday Use
ShareX (Windows only) โ€“ Lightweight, open-source utility that captures video or GIFs, plus dozens of automation extras. Suits power users who like hotkey workflows. No built-in editor, so youโ€™ll add annotations elsewhere.
Selecting the Best Screen Recorder for Windows 11: A Thorough Exploration
Selecting the right screen recorder for Windows 11 hinges on your specific needs and the level of complexity youโ€™re comfortable with. ScreenRec offers a balanced mix of ease of use and functionality, making it an excellent choice for most users. However, those with more specialized needs might find OBS Studio, Camtasia, Bandicam, or ShareX to be better suited to their...
Source: medium.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, ShareX seems to be more popular. It has been mentiond 274 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.

ShareX mentions (274)

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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 ShareX and ForthWrite, you can also consider the following products

Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.

Superhuman - Superhuman is an email management tool.

Snagit - Screen Capture Software for Windows and Mac

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.

LightShot - The fastest way to take a customizable screenshot.

Lavender - Realtime coaching for sales emails.