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toklen

v0.1.1

Published

Count tokens with a model's real Hugging Face tokenizer

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Links

Git

Maintainers

t0msilvert0msilver

Keywords

tokenizertokenstoken-counthuggingfacellm

Readme

toklen

Count tokens with a model's real Hugging Face tokenizer. Prints an integer.

npx toklen openai-community/gpt2 "hello world"   # 2
uvx toklen openai-community/gpt2 "hello world"   # 2

Both commands always print the same number. Node uses @huggingface/tokenizers, Python uses the Rust tokenizers bindings. One dependency each, no transformers, no PyTorch.

toklen Qwen/Qwen3-8B < README.md                        # stdin
git diff | toklen openai-community/gpt2
toklen -s google-bert/bert-base-uncased "hello world"   # 4, with [CLS] and [SEP]

toklen --help covers the flags. docs/usage.md has the library API and the counting rules. npm · PyPI · MIT.