DeepL vs Grammarly
DeepL and Grammarly are both writing AI tools, tracked here on price, platforms, integrations, and capabilities. Every figure below is read from the vendor's own pages and dated. No score and no winner: the facts do the picking.
DeepL
Machine translation for text, documents, and speech
DeepL translates text and full documents between more than 30 languages. It keeps formatting intact when translating PDF, Word, and PowerPoint files. The free API tier covers 500,000 characters per month.
Grammarly
Grammar, style, and generative writing help across your apps
Grammarly checks grammar, spelling, punctuation, and tone, and can rewrite or generate text on demand. It works as a browser extension, desktop app, keyboard, and inside Microsoft Word and Google Docs.
At a glance
Capability tags are factual labels we assign when a tool is added; they describe what a tool does, not how well it does it.
Checked against the vendors. Written from each vendor's own site and last re-checked there: DeepL on August 31, 2026 · Grammarly on August 31, 2026. Vendors change pricing and features without notice, so confirm anything that decides your purchase on the vendor's page.
Also in writing
A tool we have an affiliate relationship with. It is not part of the comparison above and we are not calling it the better pick.
- Paraphrasing and rewriting text
- Checking essays and articles for plagiarism
- Generating academic citations
Key features
DeepL
- Translates text between more than 30 languages
- Translates PDF, Word, and PowerPoint files with formatting kept
- DeepL Write suggests grammar and style improvements
- Glossaries pin how specific terms get translated
- REST API with a free monthly character quota
Grammarly
- Grammar, spelling, and punctuation checks
- Tone and clarity suggestions
- Generative rewriting and drafting prompts
- Works in the browser, desktop, Word, Google Docs, and mobile
- Team style guides on Business plans
What each one does well
DeepL
- ✓ Translating business documents without losing formatting
- ✓ Teams that need consistent terminology via glossaries
- ✓ Developers adding translation through an API
Grammarly
- ✓ Catching typos and awkward phrasing across every app you write in
- ✓ Adjusting the tone of an email or message before you send it
- ✓ Team style consistency across many writers
People also ask
What is the difference between DeepL and Grammarly?
Both are tracked for writing-assistant. Of the capabilities they do not share, only DeepL is tracked for translation, documents, developer-api, and only Grammarly is tracked for grammar-checker, spell-checker, tone-detection, generative-writing.
How much do DeepL and Grammarly cost?
DeepL: free plan available. Grammarly: free plan, then $30/mo.
Answers are generated from the tracked plans and capability tags shown above, so they move when the vendors' pages do.
Full fact sheets, FAQs, and discussion links: DeepL · Grammarly · all writing tools