Write better and get found. 3 tools compared: QuillBot, Surfer, Similarweb.
Updated October 2026 · How we pick
Good content has two jobs: read well for people and get found on search engines. These tools help with each step, from rewording a paragraph to planning an article that matches what people search for, to seeing where competitors get their traffic.
QuillBot helps you write and edit. Surfer shapes content so it can rank. Similarweb shows the market around you: which sites get the visits, from where, and for which keywords.
Website traffic and competitor research: see where any site gets its visitors.
Visit SimilarwebBest for: Students, writers and teams who want to paraphrase, check grammar and summarise.
QuillBot offers a paraphraser with several modes, a grammar checker, a summariser and a citation generator, in the browser and as extensions. A free plan covers the basics.
Best for: Content and SEO teams that want articles built to rank.
Surfer's content editor scores a draft against the pages that rank for a keyword and suggests terms, headings and length. It also helps research topics and audit existing pages.
Best for: Marketers and founders researching competitors and markets.
Similarweb estimates traffic for any website and breaks it down by country, channel, referring sites and search keywords, so you can see how competitors win visitors and where the openings are.
It depends on the job. For grammar and style, a dedicated grammar checker; for SEO-focused writing, a content editor such as Surfer; for full AI drafting, a general AI writing assistant. QuillBot remains strong for paraphrasing and summarising.
They help you cover a topic the way the ranking pages do and avoid obvious gaps. Rankings still depend on quality, usefulness and links from other sites.
Tools like Similarweb estimate traffic from large data panels. Treat the numbers as good estimates for comparing sites and spotting trends, not exact counts.
Some links on this site are affiliate links: if you sign up through one we may earn a commission, at no extra cost to you. It never changes what we list or what we say about a tool.