25 free AI writing tools

Write better, faster — with free AI writing tools

Check grammar, paraphrase text, summarize articles, detect AI content and more. Every tool is free, instant and requires no account.

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4.8 App Store4.4 Google Play50,000+ downloads

All writing tools

Each tool does one job well. Pick the one you need — they work together, too.

Grammar & Correction

Fix grammar, spelling, punctuation and structure — from a single sentence to a full essay.

Grammar Checker

Fix grammar, spelling and punctuation mistakes in seconds. Paste your text and get a corrected version instantly — no sign-up required.

AI Proofreader

A final-pass proofread in seconds: grammar, spelling, punctuation, capitalization and consistency — everything a human proofreader checks before publication.

Spell Checker

Fix every typo and misspelling — including the ones ordinary spell check misses, like their/there and affect/effect. Context-aware, instant, free.

Punctuation Checker

Fix commas, apostrophes, quotation marks, capitalization and every other punctuation slip in one click — without changing your words.

Sentence Checker

Is this sentence correct? Paste it and find out in seconds — with fixes for grammar, run-ons, fragments and awkward structure, plus the reason behind each one.

Essay Checker

More than a grammar pass: correct every mechanical error in your essay and get honest feedback on thesis, structure and flow — before your grader does.

Run-on Sentence Checker

Paste your text and see every run-on, comma splice and fused sentence — fixed with the lightest edit that makes it read right.

Rewriting & Paraphrasing

Say it better: paraphrase, reword, humanize AI text and rebuild paragraphs that don't flow.

Paraphrasing Tool

Rewrite any text in seconds while keeping its meaning. Choose from six paraphrasing modes — from academic to creative — with no sign-up and no word limit games.

AI Humanizer

Turn robotic, AI-generated text into natural writing that sounds like you. Paste ChatGPT output, pick a voice, and get fluent, human-sounding prose.

Sentence Rewriter

Turn awkward sentences into clear, confident writing. Rewrite any sentence to be clearer, shorter, more formal or more engaging — instantly.

Paragraph Rewriter

Rebuild a paragraph that isn't working — better flow, clearer logic, stronger topic sentence — while keeping exactly what you meant to say.

Rewording Tool

Say the same thing in fresh words. The rewording tool replaces vocabulary and phrasing intelligently — no thesaurus mangling, no changed meaning.

Summarizing & Detection

Condense long texts into key points and check whether writing reads as AI-generated.

Text Summarizer

Turn long articles, papers and reports into clear summaries in one click. Choose bullet points or a paragraph, and control how short the summary should be.

AI Detector

Paste any text and get an AI-likelihood score from 0 to 100%, produced by a purpose-built detection model. Works for ChatGPT-style text, essays, articles and more.

Citations

Correctly formatted references and in-text citations in APA, MLA, Chicago and Harvard.

Citation Generator

Paste your source details — URL, title, authors, year — and get a correctly formatted reference entry plus in-text citation in APA, MLA, Chicago or Harvard.

APA Citation Generator

Correct APA 7 references and in-text citations from whatever source details you have — websites, journal articles, books, reports and more.

MLA Citation Generator

Correct MLA 9 works-cited entries and in-text citations from whatever source details you have — built on the MLA container system.

Chicago Citation Generator

Both Chicago systems, done right: notes-bibliography footnotes for the humanities, or author-date citations for the sciences — from whatever details you have.

Harvard Citation Generator

Harvard referencing from whatever details you have — URL, title, authors, year. Reference list entry and in-text citation, formatted and ready to paste.

AMA Citation Generator

AMA 11th edition references from a DOI, PubMed link or raw source details — numbered reference entry and superscript in-text citation, correctly abbreviated.

Utilities

Everyday writing utilities: instant translation and private word counting.

AI Translator

Natural, context-aware translation — not word-for-word substitution. Pick a target language and get text that reads like it was written there.

Word Counter

Instant word, character, sentence and paragraph counts as you type — plus reading time, speaking time and your most frequent words. Everything runs in your browser.

Sentence Counter

Count the sentences in any text instantly — along with words, characters, paragraphs and reading time. Everything runs in your browser; nothing is uploaded.

Paragraph Counter

Count the paragraphs in any text, with sentences and words per paragraph in view. Runs entirely in your browser — nothing is uploaded.

Reading Time Calculator

How long will this take to read — or to read aloud? Paste your text for both estimates instantly, alongside words, sentences and paragraphs.

Free AI writing tools for every step of writing

GrammarPlus is a suite of free, AI-powered writing tools that covers the full editing workflow: fix grammar and punctuation, rewrite sentences and paragraphs, summarize long texts, check whether content reads as AI-generated, and measure your writing with a private word counter.

Every tool lives on its own focused page, works without an account, and is powered by state-of-the-art language models. Start with the grammar checker for correctness, then use the paraphrasing tool or sentence rewriter to polish style — and the summarizer when you need the short version.

Take Grammar+ with you — get the app

Check grammar, paraphrase and humanize AI text on your phone — plus scan printed pages with your camera. 50,000+ downloads.

4.8 on the App Store4.4 on Google Play (2,230+ reviews)