TwoSlash

ChatGPT Chrome extension for any text field on the web

About TwoSlash

TwoSlash is a Chrome extension that brings ChatGPT into any text field on the web: typing //ai activates AI help to generate social media posts, email replies, Google Sheets formulas and code, fix bugs, explain code, translate content and improve grammar. It offers a hosted Standard plan that needs no API key, or a bring-your-own-key lifetime option for unlimited commands across OpenAI models.

TwoSlash website preview

Live preview of twoslash.ai via the WordPress mShots service — it can take a few seconds to generate on a first visit.

TwoSlash: strengths & things to check

Strengths

Paid product with a commercial model behind it — support and continued development are funded by paying customers.
Covers chrome extension, writing, chatgpt, byok — see the focus areas listed in its key facts.
Has 6 close alternatives in the same category on this page, so switching or comparing is easy.

Things to check

No free tier is listed in this directory — budget for a paid plan, and use any trial the official site offers before buying.
Current plan prices are not listed here (they change too often to print reliably) — confirm the exact price on the official site.
It is one of 2092 tools in the Productivity & Notes category here — compare it against the alternatives below before you commit.

Derived from this listing's own data (pricing model, focus areas and category) — not a hands-on review score.

TwoSlash pricing

Pricing model	Paid — this directory does not list a free tier for it.
Free access	No free tier listed
Current plan prices	Listed on the official site — prices change, so this directory links out instead of printing a number that may already be stale.
Official site	twoslash.ai

TwoSlash key facts

Category: Productivity & Notes
Pricing: Paid — this directory does not list a free tier for it.
Focus areas: chrome extension, writing, chatgpt, byok
Official site: twoslash.ai

TwoSlash FAQ

How much does TwoSlash cost?

Paid — this directory does not list a free tier for it. Current plans and prices are listed on the official site (twoslash.ai).

What is TwoSlash used for?

ChatGPT Chrome extension for any text field on the web Its focus areas in the Productivity & Notes category: chrome extension, writing, chatgpt, byok.

Where can I try TwoSlash?

On its official site, twoslash.ai — the Visit Official Site button above goes straight there.

TwoSlash vs alternatives

	TwoSlash	Compose AI	editGPT	AIPRM
Pricing	Paid — this directory does not list a free tier for it.	Freemium — a free tier lets you start, and paid plans are available if you need more.	Freemium — a free tier lets you start, and paid plans are available if you need more.	Freemium — a free tier lets you start, and paid plans are available if you need more.
Focus areas	chrome extension, writing, chatgpt, byok	writing, autocomplete, chrome extension, email	proofreading, editing, writing, chatgpt	prompt management, prompt library, chatgpt, browser extension, marketing
Official site	twoslash.ai	compose.ai	editgpt.app	aiprm.com
Directory status	Listed	Listed	Listed	Listed

Side-by-side from each listing's own directory data. Full alternative cards are below.

About the Productivity & Notes category

Notes, tasks, and project tools that keep you organized and focused. The Productivity & Notes category on Tools Hub currently lists 2092 tools. Alongside TwoSlash, it includes Simple Metrics, Goless, FormulAI, Formularizer.

PaidProductivity & Noteschrome-extensionwritingchatgptbyok

Alternatives to TwoSlash

Tools in the same Productivity & Notes category that share focus areas with TwoSlash — worth comparing before you commit:

Productivity & Notes

Compose AI

AI autocomplete that speeds up writing everywhere

Freemiumwritingautocompletechrome-extensionemail

Productivity & Notes

editGPT

Proofread, edit and track changes to your content using ChatGPT

Freemiumproofreadingeditingwritingchatgpt

Productivity & Notes

AIPRM

Your cheat code for ChatGPT — prompt management tool and community prompt library

Freemiumprompt-managementprompt-librarychatgptbrowser-extension

Productivity & Notes

Atticus

All-in-one writing and book formatting software

Paidwritingformattingbooksself-publishing

Productivity & Notes

Bear Blog

Minimal blogging platform with no trackers

Freemiumbloggingwritingminimalprivacy

Productivity & Notes

Campfire Writing

Modular writing software for story worlds

Paidwritingworldbuildingfictionmodular

More in Productivity & Notes

Comparing tools in the Productivity & Notes category? These related listings are worth a look: Simple Metrics — Gemini AI formulas add-on for Google Sheets; Goless — No-code browser automation extension with ChatGPT integration; FormulAI — AI for Excel you can trust: FP&A, variance, reconciliation, formulas.