Explore 19,617 verified tools
Every tool here passed a live check of its own website. Filter by what matters to you, then open a profile or jump to it on the map.
853 tools · listed A to Z, so position is not a ranking
- Write / AI writing & editing
Readable
Readable scores text with Flesch and related tests so writers can check reading level and clarity before publishing.
- Write / Long-form & docs
ReadSync
ReadSync opens the same PDF on the same page across your Mac and iPhone, keeping highlights synced as you move devices.
- Write / Long-form & docs
Real3D Flipbook
Real 3D FlipBook converts PDFs into page-flip catalogs and magazines that embed in WordPress, Shopify, Wix or any site.
- Write / AI writing & editing
Rechtschreibpruefung24
Rechtschreibprüfung24 checks German spelling and grammar with AI in the browser at no cost.
- Write / Long-form & docs
Recite
Recite checks academic papers for citation and referencing errors in APA, Chicago and Harvard styles.
- Write / Long-form & docs
Recto MD
Recto MD is a Markdown reader and editor for Apple devices that opens files from Files or iCloud Drive and renders tables and code.
- Write / AI writing & editing
Redacao Online
Redação Online sends Brazilian ENEM and exam essays to human teachers for correction.
- Write / AI writing & editing
Redator.AI
Redator.AI generates ads, posts, emails and articles in Portuguese with 12 tones of voice, with a free trial.
- Write / Long-form & docs
Redline Buddy
Redline Buddy compares Word documents and PDFs and marks the changes, on Mac, iPhone, iPad, and in a browser.
- Write / Long-form & docs
Reedsy Studio
Reedsy connects authors with publishing professionals such as editors and designers, and offers writing courses and tools for authors.
- Write / AI writing & editing
ReePhly
ReePhly is an iPhone keyboard that fixes grammar, changes tone and drafts replies using Claude when you tap Assist or Reply.
- Write / Long-form & docs
Ref-N-Write
Ref-n-Write is a Word add-on for researchers that helps with cross-referencing, paraphrasing and academic phrasing in papers and theses.
- Write / AI writing & editing
Refine
Refine fixes grammar, rewrites sentences and translates text across Mac apps, running a local model entirely offline.
- Write / Long-form & docs
ReflowPDF
ReflowPDF is a PDF editor that re-lays out each page as you type, add table rows or change charts, with no account needed.
- Write / AI writing & editing
Reimemaschine
Reimemaschine is a German rhyme dictionary that finds rhyming words and offers poems and tips for writing your own verses.
- Write / AI writing & editing
Related Words
Related Words finds terms connected to a word or phrase to help writers choose vocabulary.
- Write / AI writing & editing
Remove Line Breaks
RemoveLineBreaks is a free online tool that removes stray line breaks from pasted text to reformat it into clean paragraphs.
- Write / AI writing & editing
Rephrase AI
Rephrase AI rewrites sentences, paragraphs and emails to read more clearly without changing their meaning, for free.
- Write / AI writing & editing
Rephrasely
Rephrasely rewrites sentences, paragraphs and essays with AI in many modes and languages.
- Write / AI writing & editing
ReplyContext
ReplyContext is an iPhone app that writes a reply in the user's own words to a message or screenshot from chat and mail apps.
- Write / AI writing & editing
Reproof
Reproof is a writing app for perfectionists that supports rewording, rewriting and revising text until it is right.
- Write / Long-form & docs
Retype
Retype turns Markdown files into a documentation website without extra configuration.
- Write / AI writing & editing
Reverse Dictionary
Reverse Dictionary finds words from a description or definition you type in.
- Write / AI writing & editing
Revise
Revise is an AI writing assistant for iPhone and web that drafts emails and applications from your notes, photos and documents.
- Write / Long-form & docs
Revision Screenwriter
Revision Screenwriter is a free screenwriting app with draft comparison, live collaboration and production tools for desktop.
- Write / AI writing & editing
Rewordify
Rewordify simplifies difficult English passages so readers understand and learn new words.
- Write / AI writing & editing
Rewording Tool
Rewording Tool is a free AI reworder that rewrites sentences, paragraphs and essays for different tone and structure.
- Write / AI writing & editing
RewriteBar
RewriteBar is a Mac AI writing assistant that fixes grammar and tone and translates text from any app with a shortcut.
- Write / AI writing & editing
RewriteMate
RewriteMate is an AI writing assistant for Mac and iOS that rewrites, rephrases, proofreads and translates text in other apps.
- Write / AI writing & editing
Rewritify
Rewritify rewrites AI-generated text to sound human and is aimed at passing AI detection checks.
- Write / AI writing & editing
RhymeBrain
RhymeBrain is a mobile-friendly rhyming dictionary where you type a word to find rhymes.
- Write / AI writing & editing
Rhymers Block
Rhymer's Block suggests rhymes in real time with color-coded highlighting for rap and poetry writers.
- Write / AI writing & editing
Rhymes.net
Rhymes.net is a free rhyming dictionary that helps poets and songwriters find perfect and near rhymes in many languages.
- Write / AI writing & editing
RightBlogger
RightBlogger researches, writes and publishes blog posts and refreshes old ones so bloggers can grow search traffic.
- Write / Long-form & docs
Romancer
Romancer is a digital publishing tool that turns manuscripts into ebooks.
- Write / Long-form & docs
RTF Write
RTF Write is an iOS and macOS editor for RTF and PDF files with iCloud document syncing.
- Write / Long-form & docs
Runrista
Runrista is a Markdown-first writing app for iPad, iPhone and Mac with iCloud storage and built-in AI helpers.
- Write / AI writing & editing
rwrt
rwrt is an iPhone app that rewrites rough drafts in a chosen tone or custom persona and offers alternative styles.
- Write / AI writing & editing
Ryne AI
Ryne rewrites AI text to read as human, and adds lecture notes, flashcards and academic database search for students.
- Write / AI writing & editing
Rytr
Rytr is an AI relationship manager that gathers client context from Gmail, Slack, calendars and meeting notes for follow-ups.
- Write / AI writing & editing
SAKUBUN
Sakubun is an AI writing tool that drafts SEO blog posts, ad copy and social posts from templates in Japanese.
- Write / AI writing & editing
Samwell AI
Samwell is an AI essay writer that drafts academic papers with citations and quotes for students, free to start.
- Write / AI writing & editing
Sapling
Sapling offers a writing assistant and grammar checker for chat and email, alongside an API for businesses that want language models.
- Write / Long-form & docs
Sarala
Sarala is a free, open-source Markdown editor for Mac, Windows and Linux that renders as you type, with diagrams and LaTeX.
- Write / AI writing & editing
Sassbook
Sassbook offers an AI writer, story writer, text summarizer and headline generator for writers and marketers.
- Write / AI writing & editing
Saytrue
Saytrue suggests alternative wordings for what you say or type, using approaches like Nonviolent Communication, on Mac and Windows.
- Write / AI writing & editing
Scalenut
Scalenut is an AI SEO platform for keyword research, content planning, article creation and tracking visibility in AI search.
- Write / Long-form & docs
Scan Hero
Scan Hero is an iPhone and Android scanner that digitizes paper documents into PDF or JPG files you can share.