Tokenizer

Quickly count tokens in selected text or clipboard content using popular AI model encodings.

Features

• Count Tokens in Selection: Tokenize any selected text
• Count Tokens from Clipboard: Tokenize clipboard content
• Multiple Encodings: Support for o3, o3-mini, o4-mini, GPT-4.1, GPT-4o, GPT-3.5/4, and GPT-3 model tokenizers
• Instant Results: Clean, non-intrusive notifications
• Hotkey Support: Works seamlessly with keyboard shortcuts

Usage

1. For Selected Text: Select any text and run "Count Tokens in Selection"
2. For Clipboard: Copy text and run "Count Tokens from Clipboard"
3. Configure Encoding: Choose your preferred tokenizer in preferences

Supported Encodings

• o200k_base: GPT-4o, GPT-4.1, o-series (o3, o3-mini, o4-mini) models
• cl100k_base: GPT-3.5 and GPT-4 models
• p50k_base: GPT-3 models