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In-browser real LLM token counter and cost estimation

In-browser real LLM token counter and cost estimation

by angelmm·Jun 11, 2026·3 points·1 comment

AI Analysis

●●SolidCozySolve My Problem

Local tokenizer execution beats sending text to external counters.

Strengths
  • Real tokenizers (o200k_base, etc.) run client-side with no uploads
  • Multi-model comparison shows token variance across providers
  • 6.4MB one-time download for tokenizer, then fully offline
Weaknesses
  • Token counters already exist (tiktokenizer, various CLI tools)
  • Cost estimates are guidance only, may vary by model version
Target Audience

LLM developers and AI application builders

Similar To

tiktokenizer · GPT Tokenizer · TokenCount

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