NativeProse
Summary
Grammar checkers will clean up your mistakes, but they won't stop your email from reading like a translation — and colleagues notice. NativeProse targets that gap: the writing that is technically correct but sounds like nobody who grew up speaking English would have written it.
The tool runs as a Chrome extension and surfaces on Gmail, Google Docs, LinkedIn, and any other web page — select text, choose a mode, get a rewrite. Five modes cover the main use cases: native-sounding rewrites, academic polish, professional sharpening, plain-language simplification, and translation across 20+ languages powered by Gemini AI. The word-level diff — green for added, red for struck — lets you see exactly what changed before you accept. The ceiling appears quickly for teams needing an API, a self-hosted instance, or integration into their own product; none of those exist. Free-tier usage is capped, and there is no programmatic access, so any workflow that needs to process text in bulk hits a wall fast.
Bottom line: Reach for NativeProse when an ESL professional needs to stop second-guessing every email before sending it; plan something else when your use case is batch-processing documents or embedding rewriting into your own application.
Pricing Plans
Subscription- Price
- $9 /mo
- Free Tier
- 10 rewrites per day
Free
10 rewrites per day. Native, Academic, Simplify modes. Works on all websites.
- 10 rewrites per day
- Native, Academic, Simplify modes
- Works on all websites
Pro
Unlimited rewrites. All 5 modes including Academic and Translate. Priority processing.
- Unlimited rewrites
- All 5 modes
- Translate 20+ languages
- Priority processing
Annual
Everything in Pro. Save 27% vs monthly. Priority support.
- Everything in Pro
- Save 27% vs monthly
- Priority support
View full pricing on nativeprose.com →
Pricing may have changed since last verified. Check the official site for current plans.
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Pros
Sign in to edit- Runs directly on Gmail, Google Docs, LinkedIn, and any other website via Chrome extension, so you rewrite text where it already lives instead of copying it into a separate tool and back again.
- Five distinct rewrite modes — Native, Academic, Professional, Simplify, Translate — cover the main register shifts ESL writers need, so you are not forcing an academic essay through a mode tuned for casual email.
- Word-level diff after every rewrite shows exactly which phrases were replaced, which means a writer can study the changes rather than just accept them — useful for anyone trying to improve rather than just ship.
- Translation runs in both directions across 20+ languages, so an international writer can draft in their first language and convert to fluent English rather than composing in a language they are still learning.
- The vendor states no data is stored, which removes the concern about sensitive email or document content being retained — relevant for professionals handling client-facing or confidential text.
Cons
Sign in to edit- No API exists, so any team that needs to process documents in bulk — onboarding emails, templated reports, localized content — cannot automate this; each rewrite requires a human selecting text in a browser tab manually.
- The tool is Chrome-only and browser-bound, so writers on mobile, in desktop applications like Word or Outlook, or on non-Chrome browsers have no access; teams that do not live in a browser workflow are excluded from day one.
- The Academic mode targets the pattern of ESL over-formality, but it does not engage with discipline-specific conventions — a chemistry paper and a law review note will get the same treatment, and discipline-specific reviewers will still flag the output; teams doing heavy academic writing in specialized fields report needing a human editor as a second pass.
- Teams that need a self-hosted or on-premises deployment to satisfy data-residency or compliance requirements have no path forward; there is no self-hosted option, which is the condition under which a team moves to a locally-run model like an Ollama-hosted LLM with a custom prompt instead.
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About
- Platforms
- Chrome extension
- API Available
- No
- Self-Hosted
- No
- Last Updated
- 2026-07-02T02:42:06.354Z
Best For
Who it's for
- ESL writers and students
- International professionals writing in English
- Academic and scholarly writing
- Daily email and LinkedIn communication
What it does well
- Rewriting emails to sound natural and professional
- Polishing academic essays to reduce AI-detectable phrasing
- Simplifying complex text for clarity
- Translating between English and 20+ languages
Integrations
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Frequently Asked Questions
- Is NativeProse free?
- NativeProse has a permanent free tier alongside paid upgrades (paid plans from $9 /mo). You can keep using a baseline version indefinitely without paying.
- Is NativeProse open source?
- No — NativeProse is a closed-source tool. Source code is not publicly available.
- What platforms does NativeProse support?
- NativeProse is available on: Chrome extension.
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NativeProse is a Chrome extension that rewrites English text in place — on whatever page you are already working on. The workflow is three steps: select text, pick a mode from the five available (Native, Academic, Professional, Simplify, Translate), and accept or reject the rewrite. The vendor states it works on Gmail, Google Docs, LinkedIn, and any website, which means the tool follows the writer rather than requiring a separate tab or app. Translation runs in both directions across 20+ languages, with Gemini AI as the named engine underneath.
The differentiating feature is the word-level diff. After every rewrite, a single tap reveals a word-by-word comparison — green for additions, red for removals — then hides it again by default. This is not just cosmetic: it lets a writer learn from what changed rather than blindly accepting output, which matters for ESL learners trying to internalize native phrasing over time rather than permanently outsourcing it.
The tool fits a specific, narrow profile: an individual writer who works in a browser, produces one document or message at a time, and wants rewrites that sound human rather than grammar-checked. It breaks immediately outside that profile. There is no API, so developers cannot call it from their own pipelines. There is no self-hosted option, so teams with data-residency requirements cannot use it at all — the vendor states ‘no data stored,’ but that assurance exists at the vendor’s infrastructure, not the user’s. Free-tier limits mean anyone processing volume will hit a cap and either upgrade to a paid tier or stop.