Move your team from LanguageTool to DeepL Write.
Each person gets a short interview, then a personalized step-by-step guide showing exactly where their saved work, prompts, and projects land in DeepL Write — and the few things that need a manual step, walked through. You send one invite; nobody becomes the help desk, and nothing in LanguageTool is changed or cancelled. Want to see where you’re paying for both first? Run the free audit.
Both products embed writing assistance directly into the tools teams already use, avoiding context-switching to a standalone editor. To move from DeepL Write to LanguageTool: uninstall the DeepL browser extension; install the LanguageTool extension for Chrome, Firefox, Edge, Safari, or Opera from languagetool.org; if the team uses Word, replace the DeepL Word add-in with the LanguageTool Word add-in from the Microsoft AppSource; if the team uses Google Docs, install the LanguageTool Google Docs add-on. LanguageTool's integration surface is broader — it also covers Apple Pages, LibreOffice, Gmail, Outlook, Apple Mail, and Thunderbird. To move from LanguageTool to DeepL Write: install the DeepL browser extension (Chrome, Firefox, or Edge) for web-based surfaces; use the DeepL Word add-in for Microsoft Word; use the Google Workspace integration for Google Docs. Note that DeepL's partner marketplace (marketplace.deepl-partners.com) was not resolving as of 2026-06-14 — use deepl.com/en/integrations as the authoritative source for available integrations. Teams needing LibreOffice, Apple Pages, or email client (Outlook/Gmail) integration should choose LanguageTool, as DeepL Write does not cover those surfaces.
- Warning: LanguageTool covers more surfaces out of the box (LibreOffice, Apple Pages, Apple Mail, Thunderbird, Opera) than DeepL Write, which focuses on Chrome/Firefox/Edge extensions, Word, and Google Docs. Teams on non-Microsoft/non-Google stacks should evaluate LanguageTool.
- Warning: DeepL Write's full integration feature set (beyond the browser extension) requires Pro or Enterprise tier; LanguageTool's integrations sync with Premium or Teams accounts. Free-tier users on either product get limited integration capability.
- Warning: LanguageTool offers a Proofreading API for teams building custom integrations into internal tools; DeepL Write does not have an equivalent public proofreading API, limiting extensibility for engineering teams.
Both tools correct grammar, spelling, and punctuation inline as users write or paste text. To move from DeepL Write to LanguageTool: install the LanguageTool browser extension (Chrome/Firefox/Edge/Safari) or the Word/Google Docs add-in — whichever matches where your team writes. LanguageTool's Free plan checks up to 2,000 characters per field; for longer documents (reports, contracts) upgrade to Premium (150,000 character limit). To move from LanguageTool to DeepL Write: open deepl.com/en/write, paste the text, and corrections appear inline immediately — no extension required for the web editor. Both tools support automatic language detection, so no manual language selection is needed for most workflows. Teams moving from DeepL Write should note there is no document upload in Write; text must be pasted, whereas LanguageTool's desktop app and Word add-in check documents directly in place.
- Warning: DeepL Write supports 19 languages for grammar/spelling; LanguageTool supports 30+ languages, making it the stronger choice for teams writing in Dutch, Polish, or other languages DeepL Write does not cover.
- Warning: LanguageTool Free caps each text field at 2,000 characters; DeepL Write Free has no published character cap but is a web editor (no in-app document checking). Teams with long documents need LanguageTool Premium or must paste in chunks to DeepL Write.
- Warning: LanguageTool Premium adds 20,000+ additional grammar and style checks beyond what the Free tier offers; DeepL Write does not have a comparable tiered rule-set — all users get the same correction quality.
DeepL Write and LanguageTool both offer AI-powered sentence-level rephrasing inline. To move from DeepL Write to LanguageTool: select the target sentence in any LanguageTool-supported surface (web editor, Word add-in, Google Docs add-on, or browser extension) and trigger the AI paraphrase option; choose a rephrasing goal (formal, simple, or concise) to match the intent you previously specified via DeepL Write's style presets. To move from LanguageTool to DeepL Write: paste the text into the DeepL Write web editor (deepl.com/en/write), click any sentence to see multiple alternative phrasings, and also click individual words to swap word-level alternatives. DeepL Write does not label rephrasing goals explicitly (formal/concise/simple) — the alternatives are presented without goal labels and users pick the best fit by reading. LanguageTool Free users are limited to 3 AI paraphrases per day; budget for Premium if rephrasing is a daily workflow.
- Warning: LanguageTool Free allows only 3 AI paraphrases per day; DeepL Write Free has no published daily rephrasing cap — teams doing heavy drafting will hit the LanguageTool Free limit quickly.
- Warning: DeepL Write exposes both sentence-level rephrasing and word-level alternatives in the same editor; LanguageTool's paraphrase feature operates at sentence/passage level and does not offer single-word swap suggestions equivalent to DeepL Write's word-click feature.
- Warning: LanguageTool paraphrasing explicitly supports formal, simple, and concise goal modes; DeepL Write's alternatives are goal-neutral, meaning editorial judgment is needed to match specific register requirements when switching to Write.
DeepL Write lets users pick a tone preset (Friendly, Enthusiastic, Diplomatic) and a style preset (Business, Academic, Casual) before rewriting text. LanguageTool's equivalent is its Picky Mode with style suggestions — it flags filler words, redundant phrases, and weak word choices inline, helping writers reach a cleaner, more appropriate register. To move from DeepL Write to LanguageTool: enable Picky Mode in LanguageTool settings (available on Premium); work through inline style flags rather than applying a preset — the feedback is reactive rather than proactive. To move from LanguageTool to DeepL Write: paste the text into deepl.com/en/write, select the target tone and style from the dropdown menus in the editor toolbar, and apply — Write rewrites the whole passage to match. DeepL Write's approach is transformative (full rewrite to a chosen register); LanguageTool's is corrective (flags specific issues for user resolution). Teams that want quick bulk-tone shifts prefer Write; teams that want to learn and self-edit prefer LanguageTool's flagging model.
- Warning: LanguageTool style suggestions (Picky Mode) are Premium-only; the Free tier provides no advanced style feedback. DeepL Write includes tone and style presets on both Free and Pro tiers.
- Warning: DeepL Write's tone/style presets are confirmed for English, German, French, and Spanish; LanguageTool's Picky Mode style rules are available across its full 30+ language set, giving it broader language coverage for style.
- Warning: DeepL Write applies a full rewrite when a tone/style preset is selected — the original phrasing is replaced. LanguageTool flags issues but leaves the user in control of each change; teams with strict legal or compliance review requirements may prefer the LanguageTool model to preserve intent.
Both products let teams enforce a shared writing register, but through different mechanisms. DeepL Write's tone/style presets (Business, Academic, Casual + Friendly, Diplomatic, etc.) are user-selected at write-time and apply immediately to pasted text; there is no admin-managed rule repository. LanguageTool Teams provides a centralized Team Style Guide where admins define custom rules that propagate automatically to every team member's LanguageTool instance and surface inline alongside standard grammar checks. To move a team from DeepL Write to LanguageTool Teams: compile the tone/style guidelines your team currently applies manually via DeepL Write presets into explicit rules (e.g., 'avoid passive voice', 'do not use filler phrase X') and enter them in the LanguageTool team admin console; assign the Teams plan to all members; rules then enforce automatically. To move from LanguageTool Teams to DeepL Write: export or document your Team Style Guide rules as a written style guide and train writers to select the matching DeepL Write preset (e.g., 'Business' for formal client communications); individual writers apply the preset manually per document.
- Warning: LanguageTool's Team Style Guide is available only on the Teams plan (requires 2+ members, sold per-seat); DeepL Write's tone/style presets are available to individual users on Free and Pro plans with no team overhead.
- Warning: DeepL Write has no persistent team-level style rule store — guidelines must be communicated externally (a shared doc or onboarding process); LanguageTool Teams enforces rules automatically and alerts members inline, reducing reliance on human reminders.
- Warning: LanguageTool's Team Style Guide complements a Team Dictionary (shared custom terminology); DeepL Write has no equivalent shared dictionary or terminology management feature, which is a meaningful gap for teams with proprietary product names or technical vocabulary.