DeepL WritevsGrammarly
Two writing assistant tools, the same questions. Every answer comes from the official pages, with the date we checked. Nothing here is ranked.
last check 2026-10-11
DeepL Write
by DeepL SE
Corrects grammar, spelling and punctuation and suggests rephrasings, writing styles and tones for text in eleven languages.
All DeepL Write factsGrammarly
by Superhuman Platform
Writing assistant that checks grammar, spelling and tone as you type, rewrites sentences and drafts text with AI in apps and browsers.
All Grammarly factsWhere they differ
- Free plan limitsDeepL Write: Without an account, texts of up to 1,500 characters at a time.Grammarly: 100 generative AI prompts a month on Free (Pro: 2,000 per member).
- Used to train AIDeepL Write: Free version: texts and corrections are kept for a limited time and used to train DeepL's models., Write Pro: texts are not used to improve the service.Grammarly: On by default for individual users: content is used to train models and improve the product unless switched off., Off by default for Enterprise, Education and business accounts bought through the sales team.
- LanguagesDeepL Write: Chinese, English (UK and US), French, German, Italian, Japanese, Korean, Portuguese, Portuguese (Brazil) and Spanish.Grammarly: Writing guidance in over 20 languages, including Spanish, French, Portuguese, German and Italian.
- Works inDeepL Write: Browser extension, Google Docs, Google Slides, Gmail, Microsoft WordGrammarly: Browser extension, Microsoft Word, Pages, Email clients, Google Docs
Confirmed for only one of the two so far: writes new text, plagiarism check. The table below shows which.
Same answer for both: free plan, platforms, grammar and spelling, rewrite and change tone.
Plans and prices
As listed on each official pricing page, in the currency we were shown. No conversion, no rounding.
DeepL Write
- Free Free plan$0.00 / month
- Write Pro add-on Paid, individualPrice not confirmed
- Enterprise EnterprisePrice not confirmed
Grammarly
- Free Free plan$0.00 / month
- Pro Paid, individual$30.00 / month
- Enterprise EnterprisePrice not confirmed
Full comparison with sources
| Writing assistant | ||
| What it is for | ||
| What it is for | Corrects grammar, spelling and punctuation and suggests rephrasings, writing styles and tones for text in eleven languages. | Writing assistant that checks grammar, spelling and tone as you type, rewrites sentences and drafts text with AI in apps and browsers. |
| Good for | ||
| Editor's suggestion | No editor suggestion yet | No editor suggestion yet |
| Cost | ||
| Free planA free plan that is not time-limited. Trials are listed separately. |
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| Plans and pricesOriginal currency and billing period. No conversion. |
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| Input and output | ||
| LanguagesLanguages it transcribes or speaks, as stated. |
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| Grammar and spellingMarks grammar, spelling and punctuation mistakes and suggests fixes. |
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| Rewrite and change toneRewrites a sentence or paragraph, for example shorter, more formal or friendlier. |
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| Writes new textDrafts new text from a short instruction, not only fixes what you wrote. |
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| Checking facts | ||
| Plagiarism checkCompares your text with published sources and shows matches. |
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| Workflow | ||
| PlatformsWhere the product is offered: web, desktop app, mobile app, or editor extension. |
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| Works inApps and places it works in, such as a browser extension, Word or Google Docs, as officially listed. |
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| Sources and confidence | ||
| Confidence | Last checked 2026-10-11 Not yet confirmed: Writes new text, Plagiarism check | Last checked 2026-10-11 All compared fields have a confirmed value. |
What it is for
What it is for
DeepL Write:
Corrects grammar, spelling and punctuation and suggests rephrasings, writing styles and tones for text in eleven languages.
Grammarly:
Writing assistant that checks grammar, spelling and tone as you type, rewrites sentences and drafts text with AI in apps and browsers.
Editor's suggestion
DeepL Write:
No editor suggestion yetGrammarly:
No editor suggestion yetCost
Free plan
A free plan that is not time-limited. Trials are listed separately.
DeepL Write:
- Supportedsupport.deepl.comchecked 2026-10-11
Free plan
Grammarly:
- Supportedsupport.grammarly.comchecked 2026-10-11
Free plan
Plans and prices
DeepL Write:
- Free (Free plan)$0.00 / month
- Write Pro add-on (Paid, individual)Price not confirmed
- Enterprise (Enterprise)Price not confirmed
- All plan details and sources
Grammarly:
- Free (Free plan)$0.00 / month
- Pro (Paid, individual)$30.00 / month
- Enterprise (Enterprise)Price not confirmed
- All plan details and sources
Input and output
Languages
Languages it transcribes or speaks, as stated.
DeepL Write:
- Chinese, English (UK and US), French, German, Italian, Japanese, Korean, Portuguese, Portuguese (Brazil) and Spanish.support.deepl.comchecked 2026-10-11
Grammarly:
- Writing guidance in over 20 languages, including Spanish, French, Portuguese, German and Italian.grammarly.comchecked 2026-10-11
Grammar and spelling
Marks grammar, spelling and punctuation mistakes and suggests fixes.
DeepL Write:
- Supportedsupport.deepl.comchecked 2026-10-11
Plan not specified
Grammarly:
- Supportedgrammarly.comchecked 2026-10-11
Plan not specified
Rewrite and change tone
Rewrites a sentence or paragraph, for example shorter, more formal or friendlier.
DeepL Write:
- Supportedsupport.deepl.comchecked 2026-10-11
Plan not specified
Grammarly:
- Supportedgrammarly.comchecked 2026-10-11
Plan not specified
Writes new text
Drafts new text from a short instruction, not only fixes what you wrote.
DeepL Write:
- Not yet confirmed
Grammarly:
- Supportedgrammarly.comchecked 2026-10-11
Plan not specified
Checking facts
Plagiarism check
Compares your text with published sources and shows matches.
DeepL Write:
- Not yet confirmed
Grammarly:
- Supportedsupport.grammarly.comchecked 2026-10-11
Plans: Pro, Enterprise
Workflow
Platforms
Where the product is offered: web, desktop app, mobile app, or editor extension.
DeepL Write:
- Web, Desktop app, Mobile appsupport.deepl.comchecked 2026-10-11
Grammarly:
- Web, Desktop app, Mobile appsupport.grammarly.com +2checked 2026-10-11
Works in
Apps and places it works in, such as a browser extension, Word or Google Docs, as officially listed.
DeepL Write:
- Browser extension, Google Docs, Google Slides, Gmail, Microsoft Wordsupport.deepl.comchecked 2026-10-11
Grammarly:
- Browser extension, Microsoft Word, Pages, Email clients, Google Docsgrammarly.com +2checked 2026-10-11
Sources and confidence
Confidence
DeepL Write:
Last checked 2026-10-11
Not yet confirmed: Writes new text, Plagiarism check
Grammarly:
Last checked 2026-10-11
All compared fields have a confirmed value.