Sentō
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Overview
Sentō adds a floating AI rewrite bubble to any editable field on any website. Select text, pick a template, and apply the result in place. No copy paste, no tab switching.
Works with textareas, rich text editors, ProseMirror, Confluence, Jira, and any contenteditable element.
FOUR REWRITE TEMPLATES
• Fix, correct grammar, spelling, and clarity without changing your tone
• Pro, clean professional rewrite, concise and direct
• Mine, your own custom instruction, set once in Settings
• Trim, cut the text by about 40% while keeping the key points
BRING YOUR OWN KEY
Connect your OpenAI, Google Gemini, or Grok (xAI) API key. You pay the provider directly, no subscription, no markup.
HOW IT WORKS
• Select text in any editable field
• The rewrite bubble appears below your selection
• Pick a template, the AI rewrites the text
• Review the preview, then click Apply
FORCE INSERT MODE
Skip the preview entirely. Enable Force Insert in Settings to apply rewrites directly, or hold Shift when clicking a template for a one off apply.
PRIVACY BY DESIGN
• API keys stay on your device, stored locally
• Selected text goes directly from your browser to the AI provider
• No backend, no accounts, no analytics, no telemetry
SITE CONTROL
All Sites, Allow Only, or Block mode, control exactly where the bubble appears. You can also toggle individual sites from the extension popup.
OPEN SOURCE
https://github.com/artttj/sento
Tags
Privacy Practices
🔐 Security Analysis
This extension hasn't been security-scanned yet.