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
SpanishChecker
SpanishChecker is an online editor that finds common spelling and grammar errors in Spanish text.
- Write / AI writing & editing
Speedwrite
Speedwrite rewrites ChatGPT and Claude drafts into more natural writing for essays, emails and posts.
- Write / AI writing & editing
Spell
Spell is an AI document generator that drafts and edits business documents with context from your own files and style.
- Write / AI writing & editing
SpellCheckPlus
SpellCheckPlus finds common spelling and grammar mistakes in English text, mainly for learners.
- Write / AI writing & editing
Spin Rewriter
Spin Rewriter rewrites existing articles into new versions with AI, mainly for SEO content marketers.
- Write / Long-form & docs
Spines
Spines helps authors proofread, design, format and publish their books and sell them in several formats.
- Write / AI writing & editing
SpinnerChief
SpinnerChief rewrites articles with synonym analysis and AI to produce paraphrased versions.
- Write / AI writing & editing
Spiral
Spiral is an AI writing tool that learns your voice through stylometry so drafts sound like you, for individuals and teams.
- Write / AI writing & editing
Squibler
Squibler is an AI writing assistant for drafting books, novels and screenplays from a blank page to a finished manuscript.
- Write / Long-form & docs
SSuite Office
SSuite Office offers free downloadable word processor, spreadsheet and other office programs for Windows.
- Write / Long-form & docs
StackEdit
StackEdit is a free open source Markdown editor that runs in the browser with live syntax highlighting and cloud sync.
- Write / AI writing & editing
StealthGPT
StealthGPT rewrites ChatGPT, Claude and Gemini text to sound human and shows AI detection scores.
- Write / AI writing & editing
StealthWriter
StealthWriter rewrites AI-generated text so it reads as natural writing and includes an AI detector.
- Write / Long-form & docs
Stirling PDF
Stirling PDF is a PDF editor that runs on your own machine or server, covering merge, split, convert, redact and automation tasks.
- Write / Long-form & docs
Story Architect
STARC is a screenwriting app with a simple interface and only the features scriptwriters need.
- Write / Long-form & docs
Story Grove
Story Grove is a free Apple app that keeps a novelist's draft, writing time and ideas together while rewarding daily writing.
- Write / Long-form & docs
Story Planner for Writers
Story Planner is an iPhone, iPad and Mac app for outlining novels and screenplays and plotting the writing process.
- Write / AI writing & editing
Story Spark
Story Spark turns an idea into an illustrated book with AI writing and offers printing.
- Write / AI writing & editing
Storybird
Storybird offers writing courses, challenges and reader feedback to help people write stories.
- Write / Long-form & docs
Storybook: Master Novelist
Storybook: Master Novelist is a one-time purchase writing studio for iPhone, iPad and Mac aimed at authors planning series.
- Write / Long-form & docs
StoryFlint
StoryFlint offers Notion templates and tools that help fiction writers organize notes, plots and characters.
- Write / Long-form & docs
Storyist
Storyist is a Mac and iOS writing environment with manuscript, character and story tools for novelists and screenwriters.
- Write / AI writing & editing
StoryLab.ai
StoryLab offers AI generators for marketing copy, social posts and video ideas.
- Write / Long-form & docs
Stratword
Stratword guides screenwriters from title and logline through characters and treatment to a screenplay editor.
- Write / AI writing & editing
StyleWriter
StyleWriter is a Word add-on that checks writing for plain English and style problems, aimed at writers and editors.
- Write / Long-form & docs
SubEthaEdit
SubEthaEdit is a Mac editor for writing code, articles and meeting notes together with others in real time.
- Write / AI writing & editing
Sudowrite
Sudowrite is an AI writing tool for novelists that helps draft scenes, brainstorm plots and overcome writer's block.
- Write / Long-form & docs
Sumatra PDF
Sumatra PDF is a small, fast reader for PDF, EPUB, MOBI, comic and DjVu files on Windows.
- Write / AI writing & editing
Summarizer.org
AI Summarizer is a free tool that produces summaries of pasted text.
- Write / AI writing & editing
Supercomplete
Supercomplete adds AI autocomplete to any app so people can draft messages and notes faster using their own knowledge.
- Write / AI writing & editing
SupWriter
SupWriter humanizes AI-written text, paraphrases it and checks drafts with an AI detector, aimed at students and non-native writers.
- Write / Long-form & docs
Surf PDF
Surf PDF organizes PDFs on iPad and builds editable text layers using OCR that runs on the device.
- Write / Long-form & docs
SweetProcess
SweetProcess helps small teams write, share and assign standard operating procedures and track tasks in one place.
- Write / Long-form & docs
SwifDoo PDF
SwifDoo PDF edits, converts, annotates, signs, protects and translates PDFs, with OCR, for Windows and iOS.
- Write / Long-form & docs
Sygal
Sygal converts PDF, Word, Excel, images and web pages into clean Markdown and JSON locally on your Mac or PC.
- Write / AI writing & editing
Syllable Counter
Syllable Counter is a free online tool that counts the syllables in a word or a whole sentence.
- Write / AI writing & editing
Synonyms.net
Synonyms.net is a free online thesaurus with synonyms, antonyms, definitions and pronunciations for many languages.
- Write / Long-form & docs
Tables Generator
TablesGenerator is a web tool that builds LaTeX tables from pasted spreadsheet data and updates the code as you edit.
- Write / Long-form & docs
Tablo
Tablo is an online authoring platform where writers create, print and publish books.
- Write / Long-form & docs
Taio
Taio is an iPhone, iPad and Mac app for editing Markdown and processing text with automated actions.
- Write / AI writing & editing
TaleForge
TaleForge helps writers draft books, manga and animation scripts with AI, using their own OpenAI, Anthropic or Google key.
- Write / AI writing & editing
Tapix
Tapix is an iPhone keyboard that fixes grammar, translates 57 languages, adjusts tone and suggests replies inside any app.
- Write / Long-form & docs
TatePad
TatePad is a vertical Japanese text editor for iPhone, iPad and Mac that exports multi-column PDFs.
- Write / AI writing & editing
TeacherMatic
TeacherMatic is an AI platform that generates lesson plans, quizzes and other resources for teachers.
- Write / Long-form & docs
TeraPad
TeraPad is a simple Windows text editor with a single document interface, aimed at Japanese users.
- Write / Long-form & docs
Texifier
Texifier is a LaTeX editor with syntax highlighting, multi-file projects and an integrated PDF preview for researchers.
- Write / Long-form & docs
TeXnicCenter
TeXnicCenter is a free open-source editor for writing LaTeX documents on Windows.
- Write / Long-form & docs
TeXPage
TeXPage is an online LaTeX editor with real-time collaboration, cloud compilation and live preview.