Alternatives
10 best LanguageTool alternatives
Tools that cover the same task as LanguageTool (writing), ranked by how completely their pricing, free tier and API access are documented. Checked Oct 4, 2026.
- LanguageTool starts at
- Not listed
- Free plan
- Free plan
- API
- API available
- 01
PerfectEssayWriter
PerfectEssayWriter.ai is a suite of more than 30 AI writing and academic tools spanning essay drafting, grammar, paraphrasing, grading, plagiarism checks, and citations. Students start on a permanent free account and upgrade for higher monthly word and checker limits across Standard, Pro, and Premium plans.
Best for: Students and academic writers who need bundled essay, grammar, detector, and citation tools in one subscription.
- 02
Grammar Check
Grammar Check is a web writing suite with an AI grammar checker plus humanizer, plagiarism checker, paraphraser, summarizer, and online notepad tools. Users paste or upload text, run deep scans across languages, and purchase credit-based plans for higher word volumes.
Best for: Students, marketers, and professionals polishing drafts who want grammar, paraphrase, plagiarism, and humanizer tools in one browser workspace.
- 03
textadviser.com
TextAdviser is an AI writing assistant for grammar, paraphrasing, AI detection humanization, and plagiarism checks with mobile apps promoted on Google Play. Pack pricing sells 30-day character bundles from Mini through MAX tiers in USD.
Best for: Students, copywriters, and bloggers polishing drafts, bypassing AI detection, and checking plagiarism.
- 04
AI Undetect
AI Undetect combines AI detection scoring with an undetectable rewriter that humanizes AI drafts across 20+ languages. Users paste text, run detector checks against mainstream algorithms, then rewrite with style controls including Auto-Perfect mode on paid plans.
Best for: Students, marketers, and writers who need to test AI scores and rewrite copy to read more naturally.
- 05
BypassGPT.co
BypassGPT.co humanizes AI-generated drafts so they read naturally and evade detectors such as GPTZero and ZeroGPT. The web app accepts pasted text, offers tone customization, and sells subscription tiers with higher monthly character and request limits.
Best for: Writers and marketers who need to rewrite AI drafts into human-like copy that passes common AI detection checks.
- 06
GPTKit
GPTKit is an AI-generated text detector focused on ChatGPT-style writing with free character limits and paid unlimited tiers for teams. Higher plans raise per-request character caps, request rate limits, and optional API access for institutional buyers.
Best for: Educators, publishers, and teams screening AI-written submissions or user-generated content.
- 07
Forewrite
Forewrite Pro bundles AI chat, templated writing, long-form docs, images, voiceover, and speech-to-text in one Gumroad-billed subscription. Users pick premium or fast models per task, with monthly allowances on premium models and included Brand Voice settings.
Best for: Solo writers and marketers who want one subscription for blogs, ads, documents, images, and audio without managing separate AI API keys.
- 08
UndetectedGPT
UndetectedGPT humanizes AI-generated text, runs Ghost Writer drafting, and bundles AI detection across major checker brands. The vendor sells monthly Plus, Pro, and Max plans with credits, boosts, and higher per-request word limits, plus a documented API and MCP integration for other apps.
Best for: Writers and students who draft with mainstream AI tools and want rewriter, detector, and tone controls before publishing or submitting work.
- 09
AIKTP
AIKTP is an SEO-focused AI writing suite for keyword research, long-form articles, paraphrasing, indexing helpers, and social or ecommerce copy. One subscription advertises access to many mini tools for publishing content at scale.
Best for: SEO specialists and content teams producing high-volume blog, news, and affiliate posts across languages.
- 10
AssignmentGPT
AssignmentGPT AI is a student-focused writing and homework assistant covering essays, math solvers, code help, diagrams, and upload-image Q&A. Public pricing lists tiered word limits, multilingual support on higher plans, and promotional monthly rates on paid subscriptions.
Best for: Students and educators who want AI help across assignments, math, coding, and content writing from one dashboard.
LanguageTool alternatives: common questions
What is the best free alternative to LanguageTool?
PerfectEssayWriter has an ongoing free plan. Permanent free account with 5,000 words per month across tools, 5 grader reports, and 3 AI detections with no credit card or expiry. Free plans change, so check the vendor before relying on one.
What is the cheapest LanguageTool alternative?
textadviser.com has the lowest listed starting price at $1.99/mo.
Which LanguageTool alternatives have an API?
Grammar Check, AI Undetect, GPTKit, UndetectedGPT mention API or developer access.