Software Alternatives, Accelerators & Startups

Zamzar VS ForthWrite

Compare Zamzar VS ForthWrite and see what are their differences

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Zamzar logo Zamzar

Free conversion online of many type of documents (images, text, video, audio...

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
  • Zamzar Landing page
    Landing page //
    2022-06-25
  • 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.

Zamzar

Website
zamzar.com
$ 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

Zamzar features and specs

  • Ease of Use
    The Zamzar interface is user-friendly and straightforward, making it easy for users of all technical levels to convert files.
  • Supports Multiple Formats
    Zamzar supports a wide variety of file formats, including document, image, video, and audio formats, providing versatility for users.
  • No Software Installation Needed
    Zamzar is a web-based application, so users do not need to install any additional software to use it. This is convenient and saves disk space.
  • Fast Conversion Speed
    The service offers quick conversion times, especially for smaller files, which enhances user productivity.
  • Email Notifications
    Users have the option to receive email notifications when their file conversions are complete, providing flexibility for multitasking.
  • Free Tier Available
    Zamzar offers a free tier with some limitations, allowing users to try the service without a subscription.

Possible disadvantages of Zamzar

  • File Size Limitations
    The free version of Zamzar has a file size limit, which can be restrictive for users needing to convert larger files.
  • Limited Daily Conversions
    Free tier users have a limit on the number of file conversions they can perform each day, which may be a drawback for users with high conversion needs.
  • No Batch Conversion in Free Plan
    Batch conversion, which allows multiple files to be converted at once, is not available in the free plan, potentially affecting efficiency for heavy users.
  • Dependent on Internet Connection
    Being a web-based service, Zamzar requires a stable internet connection. Poor connectivity can hinder the file conversion process.
  • Subscription Costs
    The premium plans, which offer additional features such as larger file size limits and faster conversion speeds, come at a cost that may not be feasible for all users.
  • Privacy Concerns
    Uploading files to an online service can pose privacy and security risks, particularly if the files contain sensitive information.

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 Zamzar

Overall verdict

  • Zamzar is generally considered a good option for users who need quick and hassle-free file conversions. Its wide format support and convenient cloud-based service make it a reliable choice for everyday conversion needs.

Why this product is good

  • Zamzar is a popular online file conversion service known for its ease of use, supporting a wide range of file formats including documents, images, audio, and video. It allows users to convert files without needing to download any software, making it accessible from any device with internet access.

Recommended for

    Zamzar is recommended for users who need occasional file conversions without the need for advanced features. It's particularly useful for people who work across different file types and prefer a web-based solution to handle these tasks efficiently.

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

Zamzar videos

Zamzar - A Website Review

More videos:

  • Review - GamerGuy's Reviews - Reviews: S2 E3 - ZamZar File Converter
  • Review - ZamZar

ForthWrite videos

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

Add video

Category Popularity

0-100% (relative to Zamzar and ForthWrite)
File Converter
100 100%
0% 0
Writing Tools
0 0%
100% 100
Video Converter
100 100%
0% 0
Email
0 0%
100% 100

Questions & Answers

As answered by people managing Zamzar 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 Zamzar 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 Zamzar and ForthWrite

Zamzar Reviews

Top 7 Free YouTube to WAV Converters
Zamzar is also one of the YouTube to WAV converters not to be missed. It can convert YouTube videos to audio formats such as wav, wma, etc. without downloading or registering. You can copy the ULR or just drag and drop the file to start the conversion. The conversion process may take a few minutes.
How to Convert PDF to Text
Zamzar is a tool that is a bit strange from its name, but it is a really good PDF to Text tool. According to the founder of Zamzar, its name is derived from the character of "The Metamorphosis".

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, Zamzar seems to be more popular. It has been mentiond 4 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.

Zamzar mentions (4)

  • Impossible to convert from EPUB to PDF
    I convert EPUBs to PDFs often with Zamar @ zamzar.com. You are limited to 2 or 3 free conversions per day. When you get to the site, note that "Convert to" format is found by having to scroll down a lot in column 2 under Document formats, which is below image types at the top of column. I have never checked for safety but I have been using this site for years. Note there's also a file size limit on conversions.... Source: over 3 years ago
  • Powerpoints With Flash Interactive Animations/Videos
    If your flash file is a simple animation/movie with no interaction, you might be able to find an app or site (zamzar.com maybe?) that'll convert it into a PPT-friendly video format. Source: about 5 years ago
  • How do I open an older PowerPoint file?
    I've heard that zamzar.com can convert files from very old PPT versions. If you haven't tried that already, I'd give it a go. Source: about 5 years ago
  • Unable to fix corrupted PowerPoint files - Is there any way to recover the data from these files?
    One other thing, I think I've heard of people using zamzar.com to convert problem files. Worth a try! 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 Zamzar and ForthWrite, you can also consider the following products

CloudConvert - convert anything to anything - more than 200 different audio, video, document, ebook, archive, image, spreadsheet and presentation formats supported.

Superhuman - Superhuman is an email management tool.

Convertio - File Conversion in the Cloud

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.

Online Convert - Convert files like images, video, documents, audio and more to other formats with this free and fast online converter.

Lavender - Realtime coaching for sales emails.