TextCortex
A browser extension that writes inside whatever site you are already in, rather than a separate window you paste between.
A browser extension that writes inside whatever site you are already in, rather than a separate window you paste between.
The categories TextCortex is listed in, and how strong a fit it is in each.
Emails, reports, essays, editing, summarizing, translation, presentations.
TextCortex has a free plan. Free tier with a daily creation allowance and no card required: knowledge bases, up to 50MB of file storage and custom agents
Works as a browser extension across the sites you already write in rather than as a separate destination.
Tools that do comparable work, best fit first, drawn from the catalogue rather than hand-picked. Every one is listed whether or not there is money in it for us.
Fastest for everyday drafting — emails, summaries, outlines — with the widest format support.
View ChatGPT →Strongest at long-form drafting and holding a consistent voice across a whole document rather than a paragraph.
View Claude →The same quality that made its translation worth paying for, applied to rewriting. Notably better than the field on European languages.
View DeepL Write →Turns a prompt or a pile of notes into a finished deck or document. The fastest route from rough thinking to something presentable.
View Gamma →Works inside the apps you already write in rather than a separate window, which is why it actually gets used. Grammar, tone and clarity in place.
View Grammarly →Marks the sentences that are hard to read and the adverbs you did not need, and does nothing else. The free web version has no sign-up.
View Hemingway Editor →Where TextCortex sits in the wider category pages.
Strong fit — Emails, reports, essays, editing, summarizing, translation, presentations.
Yes — Free tier with a daily creation allowance and no card required: knowledge bases, up to 50MB of file storage and custom agents. The cheapest paid tier is Premium, at $29.99/mo month to month or $23.99/mo billed yearly.
A browser extension that writes inside whatever site you are already in, rather than a separate window you paste between. It is listed under Writing, Communication & Language.
Breadth over depth against a dedicated tool. There is only one paid tier before Enterprise, and the model usage it includes is footnoted rather than stated, so check the allowance before committing. Prices exclude VAT.
6 tools do comparable work: ChatGPT, Claude, DeepL Write, Gamma, Grammarly, Hemingway Editor. 6 of them have a free plan.
Checked by hand on 4 September 2026. Prices change often — confirm on the provider's own page before spending.