Software Alternatives, Accelerators & Startups

Cyberduck VS ForthWrite

Compare Cyberduck VS ForthWrite and see what are their differences

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Cyberduck logo Cyberduck

A libre FTP, SFTP, WebDAV, S3, Backblaze B2, Azure & OpenStack Swift browser.

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
  • Cyberduck Landing page
    Landing page //
    2023-09-12
  • 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.

Cyberduck

Pricing URL
-
$ Details
Platforms
-
Release Date
-
Startup details
Country
Switzerland

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

Cyberduck features and specs

  • User-Friendly Interface
    Cyberduck features a clean and intuitive interface that makes it easy for users to navigate and manage files across different cloud storage services and servers.
  • Wide Protocol Support
    The software supports a variety of protocols including FTP, SFTP, WebDAV, Amazon S3, OpenStack Swift, and Backblaze B2, making it versatile for different needs.
  • Open Source
    Cyberduck is open-source, which means it is freely available and continuously improved by a community of developers.
  • Integration with External Editors
    Cyberduck allows seamless integration with various external editors, enabling users to edit files directly on the server.
  • Bookmark Management
    The application offers robust bookmark management, allowing users to easily save and organize frequently accessed locations.
  • Strong Security Features
    Cyberduck includes strong security features such as support for SSH keys, two-factor authentication, and encrypted transfers with TLS/SSL.

Possible disadvantages of Cyberduck

  • Performance Issues
    Some users have reported performance issues, such as slow transfer speeds and occasional freezes, especially when handling large files.
  • Resource Intensive
    Cyberduck can be resource-intensive, consuming a considerable amount of system memory and CPU, which can affect the performance of other applications.
  • Limited Support for Automation
    Unlike some other file transfer tools, Cyberduck lacks extensive built-in scripting or automation capabilities, which could be a drawback for power users looking to automate file operations.
  • Complex Initial Setup
    For users who are not familiar with the protocols supported, the initial setup and configuration can be confusing and time-consuming.
  • Occasional Stability Issues
    Some users have experienced occasional stability issues, including unexpected crashes or connection drops during transfers.

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

Cyberduck videos

How to Use Cyberduck FTP Client

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to Cyberduck and ForthWrite)
Cloud Storage
100 100%
0% 0
Writing Tools
0 0%
100% 100
FTP Client
100 100%
0% 0
Email
0 0%
100% 100

Questions & Answers

As answered by people managing Cyberduck 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 Cyberduck 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 Cyberduck and ForthWrite

Cyberduck Reviews

10 Best FTP Clients for WordPress Users (Mac and Windows)
Cyberduck doesnโ€™t provide support for Linux, but Mac and Windows users find it rather simple to use and fast for transferring files to and from local and remote locations. Feel free to download the FTP client from the Cyberduck website or you have options for downloads on the Microsoft and Mac App Stores.
Source: kinsta.com
15 Best Rclone Alternatives 2022
Furthermore, Cyberduck integrates with Cryptomator โ€“ one of the rclone alternatives mentioned earlier. With the Cryptomator integration, you get access to extra features like filename encryption and file content encryption.
7 Best FileZilla Alternatives to Use in 2022
Cyberduck offers a clean user interface which is very easy to use. Most of the web developers use Cyberduck FTP client. However, it is recommended for Mac users, which can be accessed for free. Using this app is completely free, and the users can donate to developers if they want to. This program works on Mac as well as Windows OS.
Source: techdator.net
6 FileZilla Alternatives for Safe File Transfers
While managing files can be challenging, searching for files with Cyberduck is easy and viewing them in Quick Look is as simple as pressing the spacebar. Cyberduck is also compatible with external editors, so you can open and edit files in any third-party editor. Whether you prefer TextWrangler, TextEdit, or Sublime Text, youโ€™ll still be able to edit your files.
7 FileZilla Alternatives: What Type of FTP Client Are You Looking for?
Users today, like Cyberduck because it has a more modern look and is compatible with cloud services. While it is easy to use, Cyberduck doesnโ€™t leave out the basics like search, resume, and drag & drop file management. Cyberduck is free to download and use, but they do ask for donations to help continue developing and supporting the product.

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, Cyberduck seems to be more popular. It has been mentiond 72 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.

Cyberduck mentions (72)

  • Use CLI on any OS to read-write your iPhone folders (without cloud or cable)
    The WebDAV server is Class 1 compliant (Basic), compatible with WebDAV clients like Cyberduck, rclone (GUI & CLI, available on macOS, Windows, and Linux), etc. This guide will use Cyberduck, but rclone works too. - Source: dev.to / about 1 year ago
  • Getting Files from Point A to B: A Developerโ€™s Guide to FTP
    Cyberduck: Nice macOS support, also handles SFTP. - Source: dev.to / about 1 year ago
  • Show HN: DrawDB โ€“ open-source online database diagram editor (a retro)
    Or could they just reach out to contributors and ask them to help? Or hereโ€™s another route: sell โ€œlicensesโ€ regardless of the actual license. I think https://cyberduck.io/ has this: you can donate and get a key that removes the donation nag. You canโ€™t go after the pirates, but would you really want to spend your time on that? (Of course, I would still reach out to the contributors first, explain the situation and... - Source: Hacker News / over 1 year ago
  • VSCode's SSH Agent Is Bananas
    > I distinctly remember seeing some program that was named something duck-related but for the life of me I can't remember any other specifics cyberduck - https://cyberduck.io/. - Source: Hacker News / over 1 year ago
  • Supabase Storage: now supports the S3 protocol
    Cyberduck: a cloud storage browser for Mac and Windows. - Source: dev.to / about 2 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 Cyberduck and ForthWrite, you can also consider the following products

FileZilla - FileZilla is an FTP, or file transfer protocol, client. It lets individuals transfer single files or batches to a web server. For many years, FTP was the standard for website design. Read more about FileZilla.

Superhuman - Superhuman is an email management tool.

WinSCP - WinSCP is an open source free SFTP client and FTP client for Windows.

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.

Transmit - Transmit is an FTP client for Mac OS X and Mac OS Classic (which is unsupported).

Lavender - Realtime coaching for sales emails.