Bisonary - Writing Copilot for X

Tracking since Apr 1, 2026.

Changelog

• Apr 17, 2026
  description

  Bisonary helps you write replies on X faster without leaving the timeline.
  
  The extension adds reply-writing actions directly under posts so you can quickly draft responses without switching tabs.
  
  Bisonary learns from your past replies on X and generates suggestions that match your writing style, helping you stay consistent while replying faster.
  
  Features
  
  • Suggest replies – generate reply ideas based on the post you are viewing, written in your style using examples from your past replies
  • Refine with voice – describe what you want the reply to say and Bisonary generates it using the context of the post and your writing style
  • Write with voice – speak what you want to say and Bisonary turns it into a clear, well-written reply (speech-to-text with grammar correction)
  
  Speak in your language
  
  You can speak in your native language and Bisonary converts it into clear, natural English replies. This helps non-native speakers participate more easily in conversations on X.
  
  How it works
  
  When you click a Bisonary action, the extension reads the visible post text on the page and sends it to your signed-in Bisonary account to generate reply suggestions.
  
  Suggestions are generated using the context of the post and examples from your past replies so the results match your writing style.
  
  If you use a voice action, the spoken instruction text is also sent to Bisonary to generate the reply.
  
  The extension does not automatically post replies to X. You always review the generated text and decide whether to use it.
  
  Privacy and permissions
  
  The extension reads visible post content on X pages only to generate reply suggestions.
  
  Your Bisonary session cookie is used solely to authenticate requests to app.bisonary.com. The extension does not expose X OAuth tokens and does not access private messages or other account data.
  
  The side panel helps you sign in, confirm extension status, and copy diagnostics when support is needed.

  Bisonary helps you write on X faster without leaving the timeline.
  
  The extension adds AI writing tools directly inside X so you can draft replies and improve your text without switching tabs.
  
  Bisonary uses the visible post context together with examples from your past replies on X to generate suggestions that better match your writing style.
  
  Features
  
  • Suggest replies – generate reply ideas based on the post you are viewing, written in a style informed by your past replies
  • Refine with voice – describe what you want the reply to say and Bisonary generates it using the post context and your writing style
  • Write with voice – speak what you want to say and Bisonary turns it into a clear reply draft
  • Favorite emoji – quickly insert your favorite emoji into the X composer
  • Quick symbols – insert commonly used bullets, arrows, and symbols while writing
  • Enhance – format or lightly paraphrase the text currently in the X composer, with a preview before you accept or copy the result
  
  Speak in your language
  
  You can speak in your preferred language and Bisonary converts your spoken instruction into clear reply text. This can make it easier for non-native English speakers to participate in conversations on X.
  
  How it works
  
  When you click a Bisonary action on a supported X page, the extension reads the visible post text needed for that action and sends it to your signed-in Bisonary account to generate suggestions.
  
  Suggestions are generated using the post context and examples from your past replies so the results better match your writing style.
  
  If you use a voice action, the spoken instruction text is also sent to Bisonary.
  
  If you use Enhance, the extension sends the text currently in the X composer to Bisonary so it can format or lightly paraphrase it. You see the result before choosing whether to use it.
  
  Favorite emoji and button visibility settings are stored in Chrome storage. If you are signed in, favorite emoji can also be synced to your Bisonary account as a backup.
  
  The extension does not automatically post to X. You always review the generated text and decide whether to use, copy, or insert it.
  
  Privacy and permissions
  
  The extension reads visible post content on supported X pages only to provide its writing features.
  
  Your Bisonary session cookie is used only to authenticate requests to app.bisonary.com. The extension does not expose X OAuth tokens and does not access private messages.
  
  The extension stores local settings such as button visibility and favorite emoji, and it may fetch your saved speech-language preference and favorite emoji backup from your Bisonary account when needed.
  
  The side panel helps you sign in, confirm extension status, manage settings, and copy diagnostics when support is needed.

• Apr 17, 2026
  short_description

  Generate AI reply suggestions directly under posts on X using your own writing style.

  Write better on X in your own voice with AI suggestions, voice input, and composer tools.

• Apr 17, 2026
  name

  Bisonary - AI Replies for X

  Bisonary - Writing Copilot for X

Permissions & access

Permissions

storagecookiessidePanel

Host access

https://x.com/*, https://twitter.com/*, https://app.bisonary.com/*

Screenshots