Software Alternatives, Accelerators & Startups

Base64Encode.dev VS ForthWrite

Compare Base64Encode.dev VS ForthWrite and see what are their differences

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Base64Encode.dev logo Base64Encode.dev

Base64 Encode and Decode Online

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.
  • Base64Encode.dev
    Image date //
    2026-01-29

Need to convert text quickly? Use this free Base64 Encode & Decode online tool to encode or decode data instantly. Fast, secure, and works directly in your browser.

  • 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.

Base64Encode.dev

Pricing URL
-
$ Details
free
Platforms
-
Release Date
-

ForthWrite

$ Details
freemium $12 / 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

Base64Encode.dev features and specs

  • Simple and intuitive interface
    Base64Encode.dev offers a clean, straightforward user interface that makes it easy for users to quickly encode and decode Base64 strings without any learning curve or unnecessary complexity.
  • Free to use
    The tool is completely free with no subscription or payment required, making it accessible to anyone who needs quick Base64 encoding or decoding functionality.
  • No installation required
    As a web-based tool, Base64Encode.dev works directly in the browser without requiring users to download or install any software, making it convenient and platform-independent.
  • Fast real-time conversion
    The tool provides instant encoding and decoding results, allowing users to quickly convert text or data to and from Base64 format without delays.
  • Accessible from any device
    Being a web application, it can be accessed from any device with a browserโ€”desktops, tablets, or smartphonesโ€”providing flexibility for developers and users on the go.

Possible disadvantages of Base64Encode.dev

  • Privacy concerns with sensitive data
    Submitting sensitive or confidential data to any online encoding tool raises potential privacy and security concerns, as users cannot fully verify how their data is handled on the server side.
  • Requires internet connection
    As a web-based tool, Base64Encode.dev cannot be used offline, which can be a limitation for users who need encoding capabilities in environments without internet access.
  • Limited advanced features
    The tool focuses primarily on basic Base64 encoding and decoding, and may lack advanced features such as batch processing, file encoding for large files, or integration with other encoding schemes.
  • No API for automation
    The tool may not offer a dedicated API endpoint for developers who want to integrate Base64 encoding/decoding into their automated workflows or CI/CD pipelines.
  • Dependent on third-party availability
    Users relying on this tool are dependent on the website's uptime and availability. If the site experiences downtime or is discontinued, users lose access to the functionality entirely.

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 Base64Encode.dev

Overall verdict

  • Base64Encode.dev is a solid, free online tool for quickly encoding and decoding Base64 strings directly in your browser, making it a handy utility for developers and technical users.

Why this product is good

  • Fast and simple interface for encoding and decoding Base64 with no signup required
  • Processing typically happens client-side in the browser, which helps protect sensitive data
  • Free to use with no cost or usage limits for typical tasks
  • Works across devices and platforms directly from a web browser
  • Useful for common developer tasks like encoding images, tokens, or text strings

Recommended for

  • Developers who frequently need to encode or decode Base64 data
  • Students and learners exploring data encoding concepts
  • QA engineers and testers working with API tokens or payloads
  • Anyone needing a quick, one-off Base64 conversion without installing software

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 Base64Encode.dev and ForthWrite)
Developer Tools
100 100%
0% 0
Email
0 0%
100% 100
Utilities
100 100%
0% 0
Email Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Base64Encode.dev 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

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Reviews

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Base64Encode.dev Reviews

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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)

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When comparing Base64Encode.dev and ForthWrite, you can also consider the following products

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