Write and rewrite
Informal to Formal Sentence Rewriter
Given a casual input text, generate a more formal/professional output.
Sentence Rewriter / Tone Rewriter
Given a sentence, generate rewrites of that sentence in a target tone.
Paraphraser
Generate rewordings and rephrasings of an input sentence.
Rewording Tool
Generate rewordings of an input sentence.
Text Shortener
Rewrite text to about half its length while preserving the meaning and tone.
Text Expander
Rewrite text to be longer and more detailed while preserving the meaning.
Plain Language Simplifier
Rewrite text at a plain, elementary, middle school, or high school reading level.
Summarizer
Given a piece of text, generate a short summary.
Tense Rewriter / Converter
Given a sentence, rewrite that sentence in a target tense (simple past, present continuous, etc.).
Passive to Active Sentence Rewriter
Generate sentence in the active voice given sentence in the passive voice.
Active to Passive Sentence Rewriter
Generate sentence in the passive voice given sentence in the active voice.
Sentence Splitter
Given a sentence, split it into two or more sentences.
Title Generator
Given a document (email, article, or post) generate a title.
Acronym Generator
Given an idea, generate several acronyms.
Translator
Translate text with automatic source-language detection across 170+ languages, formality control, and region variants.
Case Converter
Capitalize text using Sapling's AI-powered tool.
Review documents and websites
AI Detector
Detect whether text is AI-generated.
PDF & Word AI Detector
Upload a PDF or DOCX and review its extracted text for AI-generated content.
Webpage Grammar and Spell Check
Check for spelling and grammar errors on a webpage by entering the URL.
Writing Quality Checker
Score writing quality 1–5 with per-sentence scores and an AI rubric with suggested fixes.
Spell Checker
Neural spellcheck tool that corrects contextual spelling errors.
Passive Voice Checker
Detect whether sentences are in the passive voice or not.
Flesch-Kincaid
FK readability metrics (reading ease and grade level).
Style Guide Checker
Check any text against your own house-style rules and get grounded violations with quotes and fixes.
Issue Highlighter
Proofreading and self-editing tool that identifies common issues in text.
DEI Issue Highlighter
Proofreading tool that identifies diversity, equity and inclusion (DEI) issues in text.
Medical Spell Checker
Check for spelling errors in medical and healthcare-related terms.
Pharmaceutical Spell Checker
Check for spelling errors in pharmaceutical terms.
SEO Meta Generator
Generate title tags, meta descriptions, a URL slug and focus keywords from any article.
Analyze and process text
PII Detection & Redaction
Find and redact emails, phone numbers, SSNs, card numbers, IPs, IBANs and routing numbers.
Data Extractor
Pull the fields you name out of any unstructured text as typed JSON, with the evidence for every value.
Text Classifier
Classify any text into your own categories — intent, topic, routing — with no training data.
Named Entity Recognition
Extract people, organizations, locations, dates, money and more from any text.
Content Safety Checker
Score text for toxicity, harassment, hate speech, and other unsafe content.
Profanity Filter
Detect whether a given string contains profanity/vulgar language.
Tone Checker
Detect the tone of a given sentence or document.
Sentiment Analysis
Detect the sentiment of a given sentence or document.
Language Detection
Detect the language of a particular string.
Similar Terms (Meaning)
Find similar terms in dictionary based on similarity in semantic meaning.
Similar Terms (Spelling)
Find similar terms in dictionary based on edit distance. Coming soon
Roster Diff
Compute the difference between two rosters of emails.
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