LanguageTool
Worth it
Confidence: Medium
Buy if you write in multiple languages or want a cheap, open-source Grammarly alternative.
Comparison
LanguageTool vs Grammarly: Free AI Writing Assistance
LanguageTool and Grammarly: Free AI Writing Assistance both land on Worth it.
Grammarly: Free AI Writing Assistance
Worth it
Confidence: Medium
Buy the free tier for everyday writing . it is genuinely useful at $0.
| Compare | LanguageTool | Grammarly: Free AI Writing Assistance |
|---|---|---|
| Verdict | Worth it | Worth it |
| Best for | Multilingual writers | Students and academics |
| Who it's not for | English-only power writers wanting deepest style editing | Novelists fearing AI-detection flags |
| Privacy | Open-source core you can self-host; a few dependency CVEs and one brand-abuse incident, no major product breach found.⁸ | Third-party scan scores 89/100; official product security page published; no public CVEs found in reviewed sources.15 |
| Support quality | 1.9/5 Trustpilot suggests unresolved gripes | No support evidence in sources |
| Public sentiment | Reviewers praise its multilingual accuracy and integrations, while Reddit users grumble that the free tier keeps shrinking and Premium feels expensive. | Casual users praise the free version, while some fiction writers report AI-detection accusations and fatigue with constant suggestions.16 |
| Biggest gotcha | Free browser extension limits keep shrinking; more features now Premium-only⁵ | Advanced rewrites and tone tools sit behind Pro; the free tier nudges you to upgrade13 |
Pick LanguageTool when
- Multilingual writers
- Non-native English speakers
- Budget Grammarly switchers
- Open-source/self-host fans
When LanguageTool is not a fit
- English-only power writers wanting deepest style editing
- Free-only users needing full browser extension features
- Privacy-purists unwilling to self-host
- Teams needing vendor security pages and compliance docs
Pick Grammarly: Free AI Writing Assistance when
- Students and academics
- Everyday email and docs
- Non-native English writers
- Solo bloggers
When Grammarly: Free AI Writing Assistance is not a fit
- Novelists fearing AI-detection flags
- Writers who resent constant suggestions
- Fiction writers wanting minimal AI interference
Sources
- LanguageTool Review: Pricing, Features, Pros and Conskindlepreneur.comreview
- LanguageTool Review 2025: Multilingual Grammar Checkertechforword.comreview
- Trustpilot reviews of languagetool.orgtrustpilot.comreview
official
- LanguageTool Premium now mandatory for the extensiondiscuss.privacyguides.netnews
- Grammarly vs LanguageTool (XDA Developers)xda-developers.comreview
- LanguageTool revenue estimategetlatka.comnews
- Three CVEs in opennlp-tools dependencygithub.comsecurity
- CVE-2007-1939 detailnvd.nist.govsecurity
- Malware abusing LanguageTool namegithub.comsecurity
- LanguageTool Premium pagelanguagetool.orgofficial
- LanguageTool subscription help articlehelp.languagetool.orgofficial
- Grammarly: Free AI Writing Assistance (official)grammarly.comofficial
- Product security pagegrammarly.comsecurity
- Is grammarly.com Safe? Security Score 89/100cystack.netsecurity
review