QuillBot
Paraphrase, proofread and summarise text with AI, in Spanish too.
We review pricing and features regularly, but check them on the official site before subscribing. How we review.
What is QuillBot?
QuillBot is the Swiss army knife of writing: a paraphraser with multiple modes, a grammar checker, a summariser, a translator, an AI detector and a humaniser. Very popular with students and writers thanks to its generous free plan and the fact it works fully in Spanish. It integrates with Chrome, Word and macOS.
Pros
- Works very well in Spanish (paraphrasing, grammar, summaries)
- Genuinely useful free plan for occasional use
- Cheap Premium tier ($8.33/month annual) with 9 paraphrasing modes
- Chrome extension and Word integration
Cons
- The free plan limits paraphrasing to 125 words at a time
- The AI detector and plagiarism checker have limited quotas
- It does not write content from scratch as well as a chatbot does
What QuillBot is like in practice
Where it stands out
It rewrites a text keeping the meaning and offering several registers, which is a very specific job it does better than asking a general assistant for the same thing. For anyone writing in a language they do not fully command, or unsticking a paragraph that will not quite land, it resolves fast and without ceremony.
Where it falls short
Its most widespread use is disguising copied text, and that is not a flaw in the tool but a problem for whoever does it: rewording someone else's work is still plagiarism and institutions know it. In Spanish the paraphrasing is correct but less refined than in English, and it sometimes shifts nuances that matter.
How its pricing works
The free plan caps text length per pass and the rewriting modes, which is fine for individual sentences and falls short for a document. The paid tier runs around $10-20/month. Before subscribing, check whether an assistant you already pay for does the same thing: in many cases, it does.
Is QuillBot right for you?
Yes, if…
You write in Spanish and need to rephrase, proofread or summarise: it is one of the few tools of its kind that works just as well in the language, and Premium costs $8.33/month.
No, if…
You want to generate content from scratch: a chatbot is better for that. And using it to dodge AI detectors in academic work may breach your institution's rules.
Frequently asked questions
Is QuillBot free?
Yes, with limits: paraphrasing up to 125 words, 2 modes and 1,200-word summaries. Premium ($8.33/month annual) removes the caps.
Does it work in Spanish?
Yes, the paraphraser, checker and summariser work fully in Spanish, and it is one of the best tools of its kind for the language.
Can it be used to evade AI detectors?
It includes a humaniser, but no method is foolproof and using it academically may breach your institution's rules. Use your judgement.
Where QuillBot appears
Rankings where we have picked this tool.