The best AI writing tools for non-native English speakers (2026)

Rewrait works where the writing happens. Select your draft in Slack, Gmail, Outlook, Teams, Notion, or a browser field, press Cmd+Shift+P (Ctrl+Shift+P on Windows), and see your draft next to a natural English version before it replaces your text. It is built around the problems non-native writers actually have: word-for-word translations, a tone that reads too direct, and false friends. You can also start from your own language: dictate in Spanish, Portuguese, French, or German and get a clear English message, or save a style that always writes in English. Draft Reply writes an answer from the email or chat on screen, Auto picks a style that fits the app, and opt-in learning remembers the corrections you confirm. It runs natively on Mac and Windows, does not train models on your text, and keeps history off unless you turn it on. Caveat: it rewrites when you ask; it does not underline text as you type.

Pricing: Free $0 (30 rewrites/mo); Pro $12/mo billed annually or $15 monthly; Team $20/seat/mo billed annually. 14-day trial of every feature, no card.

Grammarly is still the best-known checker for second-language writers: it watches as you type and underlines grammar, spelling, clarity, and tone issues, with an explanation for each suggestion that helps you learn. Its coverage across browsers and many apps is very broad. The limits for non-native writers are about phrasing rather than errors. A sentence such as "We remain attentive to any comment" is grammatically correct, so a checker may leave it alone even though a native reader would never write it, and you still accept suggestions one by one. Grammarly rebranded to Superhuman in October 2025 and now sits inside a wider productivity suite. Pro is fairly priced at $12/mo billed annually, but month-to-month costs $30, and AI usage is metered in prompts.

Pricing: Free (100 AI prompts/mo); Pro $12/mo billed annually or $30 monthly (2,000 AI prompts/member/mo).

DeepL built its reputation on translation quality, and DeepL Write applies the same models to improving text in English and several other languages. You paste or type a paragraph, choose a style or tone, and pick between alternative phrasings word by word, which makes it a useful way to learn how a native writer would say something. For non-native professionals who translate first and polish second, keeping both in one place is convenient. The trade-off is the workflow: Write is its own editor, so you move text in and out of it rather than rewriting it inside Slack or your email client, and longer or frequent use needs a paid DeepL plan. Choose it if you work paragraph by paragraph and value translation quality above everything else.

Pricing: Free with usage limits; unlimited use comes with a paid DeepL subscription.

ChatGPT can rewrite almost anything: an awkward paragraph, a full email in your own language, a message that needs to sound warmer. For a long, one-off piece of writing you can describe the situation, ask follow-up questions, and iterate, which no hotkey tool matches. For everyday messages the cost is friction. Each rewrite means switching windows, pasting your text, writing a prompt, copying the answer, and pasting it back, and the result can drift from your meaning or add sentences you did not write, so you need to check it carefully. Many non-native professionals use ChatGPT for the occasional long email and a dedicated tool for the twenty short messages they send every day.

Pricing: Free; Plus $20/mo.

Apple's Writing Tools are built into macOS and much improved in the macOS 27 release: proofread and rewrite in standard text fields, with controls for formality and conciseness. For an occasional fix they cost nothing and keep processing on your device, so try them first. Their limits matter more for daily second-language writing. There are no reusable styles or saved instructions, coverage stops at standard macOS text fields, and none of it exists on Windows, which rules it out for many workplaces. If built-in rewriting covers your needs, keep the money; if you write English all day, you will notice these gaps quickly.

Pricing: Free with macOS on Apple Silicon.