TokenLens

About

TokenLens is a lightweight token analysis tool that works directly inside the AI chats you already use every day. As you type, it shows estimated token usage, projected cost, and ways to make prompts more efficient before you send them.

Supported platforms include ChatGPT, Claude and other major LLMs

Features

• Real time token analysis  
See estimated token usage and cost instantly while writing prompts, pasting code, or editing messages.

• Prompt optimization  
Generate shorter, cleaner versions of your prompts that keep the same meaning while reducing unnecessary tokens.

• Code cleanup and refinement  
Paste code into the widget to receive a more streamlined version with improved structure, naming, and readability.

• Quick replace  
Send optimized prompts directly back into the chat input without manually copying and pasting.

• Session tracking  
Monitor estimated token usage across your current conversation to better understand overall consumption.

• Automatic prompt detection  
TokenLens reads directly from supported chat inputs so analysis happens automatically as you type.

How accounts work

TokenLens uses your existing account from TokenLens.live. Free, Plus, and Pro plans all carry over to the extension with no separate subscription required.

A free TokenLens account is required to use the extension.