Text & Writing

Wordtune

Freemium

Wordtune works at sentence level. Instead of generating whole documents, it offers several rewrite options for the sentence you just wrote, along with switches for formal or casual tone and corrections for grammar, spelling and phrasing. It also continues a stalled paragraph, suggests synonyms and translates text into English across ten languages. Most people use it through the Chrome extension inside Gmail, docs or a CMS, and a web editor covers everything else. The Basic plan is free with limits; Advanced costs $6.99 per month, and a three-day trial covers the paid tiers.

QuillBot

Freemium

QuillBot is a set of editing tools gathered around a paraphraser. You paste text and get rewritten versions in more than ten modes, including academic, formal and simple, or define a custom mode for a house style. Grammar checking, an AI detector, an AI humanizer, a plagiarism checker, a summarizer and a citation generator sit in the same account, which makes it useful for students assembling essays and for editors polishing client copy. The free tier caps paraphrasing at 100 words and two modes; Premium at $8.33 per month on annual billing lifts those limits and adds full detector and humanizer access.

Rytr

Freemium

Rytr has changed shape: it now remembers clients and commitments across email, Slack, calendars and meeting notes, then helps you write the follow-up. The writing side, called Create, offers more than forty use cases such as emails, ads and posts, with 22 tones and support for 38 languages, and can produce up to three drafts at once. A browser extension rewrites text in any input box, while Engage supplies morning briefs and meeting prep. The free plan allows 10,000 characters monthly; Lite at $9 per month removes the character cap.

Claude

Freemium

Claude is Anthropic's AI assistant, known for careful reasoning and long-context work. It is particularly strong at reading and summarising long documents, analysing codebases, and producing structured, well-edited prose. The web, desktop and mobile apps share Projects, which keep reference material and instructions together for recurring work. Claude supports file uploads, image understanding and tool use, and the API offers tiers from small, fast models to the largest for complex reasoning. Business plans add higher usage limits and admin controls. Teams that work with lengthy contracts, research papers or large code repositories tend to prefer it for its accuracy and measured tone.

Grammarly

Freemium

Grammarly is a writing assistant that checks grammar, spelling, punctuation and tone as you type. It works across browsers, desktop apps and mobile keyboards, and integrates with Google Docs, Word, email clients and many web forms. Beyond corrections, it suggests clearer phrasing, flags tone that may land badly, and can rewrite sentences or generate drafts with its AI features. Personal plans cover everyday writing; business plans add style guides, brand tones and admin controls for teams. A free tier fixes basic errors, while paid plans unlock advanced suggestions, plagiarism checks and generative rewriting. It is most valuable for people who write professionally every day.

Copy.ai

Freemium

Copy.ai is an AI writing platform aimed at marketing and sales teams. It generates blog posts, product descriptions, ad copy, emails and social posts from short briefs, and includes workflows that chain prompts together for recurring tasks like content repurposing or prospect research. Brand voice settings keep output consistent across a team, and a large prompt library covers common formats. Integrations push generated content into tools like HubSpot, Salesforce and WordPress. A free plan offers limited credits; paid tiers add unlimited words, multiple seats and workflow automation. It is useful for teams producing high volumes of copy, though all output still needs human editing before publication.