LanguageTool Free for non-native indie English: character limits first
Route Free versus Premium using about 2,000 versus 150,000 characters per field, multilingual needs, and duplicate-subscription stop rules.
Non-native indie developers writing English landing pages and cold emails often stall on grammar tooling. Grammarly-family articles are common, including Toolvori’s Grammarly versus DeepL Write comparison. This page answers a different job. Is LanguageTool Free’s per-field character limit enough for one email or one section, when is Premium worth it, and should you buy another assistant if you already pay for one. Feature boundaries are anchored to the LanguageTool homepage and Premium page observed on 2026-09-25. Dollar amounts on that page are script-rendered, so this article does not invent a USD quote as evidence.
Use the character limit to decide whether Free can work
The Premium feature table lists about 2,000 characters per text field on Free and about 150,000 on Premium. A short cold email or one product blurb often fits Free. A full English landing-page body hits 2,000 characters quickly. When you hit the cap, do not fake continuity by slicing arbitrarily; context-aware suggestions degrade. Cleaner options are section-by-section checks, or Premium when you truly need one long pass.
LanguageTool stresses multilingual coverage; the site describes 30+ languages. For Chinese authors writing English who also touch German or Spanish materials, that fits better than an English-only assistant. Business pages also emphasize GDPR-oriented team options. If your customers are in Europe and contracts care about processing location, put that on the selection sheet.
What Premium adds, and what it does not
The Premium page lists a personal dictionary, text statistics, a personal style guide, team features, and deeper style and semantic checks, with enhancements such as Picky Mode on the paid side. Free describes tighter daily limits for sentence-rephrasing style help. Premium also states a 14-day money-back commitment. These are official feature boundaries, not a promise that payment produces fundraising-grade copy.
The tool reduces grammar, punctuation, and style risk. It does not prove product value. You still write the offer. Treat LanguageTool as a pre-publish check, not a strategy advisor.
How to coexist with an existing Grammarly subscription
If you already pay for Grammarly and mostly write English marketing notes, stacking LanguageTool Premium often duplicates spend. A cleaner coexistence keeps one Free checker as a second opinion in the browser, especially when multilingual drafts appear. If you refuse to send text into a particular cloud, read privacy statements and Europe-oriented options first instead of comparing feature grids alone.
DeepL Write leans toward sentence rewriting. LanguageTool leans toward rules and grammar coverage. When the job is fewer grammar embarrassments, start with LanguageTool. When the job is a full alternate phrasing, a rewrite tool may fit better. Do not force one subscription to cover both jobs.
When not to rely on LanguageTool
Legal contracts, medical instructions, and formal fundraising materials need human review. Do not paste customer names and unreleased numbers into unknown plugins. If a browser extension requests broad site permissions, tighten the grant before you continue.
If your English problem is structural confusion rather than articles and tense, rewrite the outline first. A green grammar pass will not rescue structure.
Scenario defaults
One person writing English cold emails and short updates should default to LanguageTool Free and check by field. One person maintaining long English landing pages and a help center should try Free in sections first, then reconsider Premium after repeated monthly caps. Teams that need shared terminology and care about GDPR language should read the official Business materials before buying seats instead of stretching a personal Premium.
If you already pay for Grammarly and only write short English sentences, do not stack Premium by default. Spending the same money on a native-speaker review of one critical email is often higher leverage.
Current recommendation
For non-native indie English checks, default to LanguageTool Free and let the 2,000-character field limit decide whether you must split sections. When long drafts stably hit the cap and you need a personal dictionary plus stronger style checks, buy against the live Premium page that day. Avoid duplicate subscriptions when a similar assistant already covers the job. Treat live on-page prices as authoritative; this article freezes only observed feature boundaries.
Fix a review order. Correct facts and links first, run grammar second, tone last. Reversing the order polishes outdated prices.
Before adding frequent “errors” to a personal dictionary, confirm they are brand spellings rather than real mistakes. Dictionaries remember stubbornness. A stubborn wrong spelling for a year costs more than one red underline.
Open browser extensions and editor plugins only on sites where you actually write. Fewer permissions lower the chance of pasting secrets into the wrong box. A writing assistant is a tool, not a second brain.
Split suggestions into must-fix and optional. Must-fix covers clear grammar errors and negations that change meaning. Optional covers overly formal tone preferences. Accepting everything turns product voice into a manual.
Check subject lines alone. They are short and still decide opens. Even with a wide character budget, do not stack three synonym adjectives in a subject. Specific and short beats ornate.
If you generate English docs with a static site, put LanguageTool on the pre-publish list next to link checks. Docs are crawled more often than emails; wrong plurals and prepositions linger. Fix once and the benefit outlasts a tweet.
When a team shares an error glossary, keep version history. Today’s product-name exception must be reversible tomorrow. A glossary without history becomes an untouchable inheritance.
Tools in this guide
