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Tiktoken Visualizer — Gratis online tool

Zie je tekst getokenized — kleurrijk, direct, voor GPT/Claude/Gemini

Visualiseer hoe AI-modellen je tekst tokenizen. Elk token in een andere kleur. Begrijp waarom prompts kosten wat ze kosten. Zonder registratie.

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Meer weten

Free tiktoken visualizer — see tokens colored, live

Toololis Tiktoken Visualizer shows exactly how AI models tokenize your text. Each token gets a unique color, so you see where word boundaries are. Built on OpenAI cl100k_base encoding used by GPT-4, GPT-4o, and GPT-3.5.

How to use this tool

  1. 1

    Paste text

    Any prompt, code, or document. Tokens appear live as you type.

  2. 2

    Watch the colors

    Each token gets a unique color. Spaces, punctuation, word fragments all visible.

  3. 3

    Toggle view modes

    Colored, numbered, or raw-id view.

Why visualize tokens?

  • Debug prompt length — see what parts of your prompt cost the most
  • Understand token inefficiency — notice how JSON and numbers explode token counts
  • Optimize for cost — rewrite expensive sections
  • Learn how LLMs see text — tokens are the true input, not words

Frequently Asked Questions

What is a token?
A token is the smallest unit of text the AI model processes. Roughly 1 token equals 0.75 words in English.
Why do letters split weirdly?
Tokenizers use Byte-Pair Encoding (BPE). Common sequences become one token, rare ones split.
Why are numbers each a token?
GPT tokenizers are notoriously bad at numbers. This is why LLMs struggle with math.
Why is JSON so token-expensive?
Every brace, bracket, quote, and comma is its own token. A 200-char JSON can be 80-100 tokens.
Do Claude and Gemini tokenize differently?
Yes. We show cl100k_base (GPT-4/3.5/4o) exactly. Claude has a similar tokenizer. Gemini uses SentencePiece with 30 percent more tokens on average.
Is my text stored or sent?
Nee. Tokenization runs in your browser. Zero server calls.

Belangrijkste punten

  • Tiktoken Visualizer is a free, browser-based developer tool — see your text tokenized — colorful, instant, for gpt/claude/gemini.
  • Nee signup, no downloads, no file uploads — your data stays on your device.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use Tiktoken Visualizer

  1. Open the tool: Launch Tiktoken Visualizer on Toololis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

Tiktoken Visualizer — Quick Facts

Prijs
Gratis — geen limieten, geen watermerk, geen paywall
Privacy
100% in de browser — geen data verlaat je apparaat
Platform
Elke moderne browser — desktop, tablet of mobiel
Categorie
Developer Tools on Toololis
Offline
Works offline after first visit (Progressive Web App)
FunctieDetails
ToolTiktoken Visualizer
CategorieDeveloper
Aanmelden vereistNee
Bestand uploadenGeen — verwerkt in browser
Mobiel ondersteundVolledig responsive
KostenVoor altijd gratis

Why Use Tiktoken Visualizer?

You should try Tiktoken Visualizer for a quick, private way to see your text tokenized — colorful, instant, for gpt/claude/gemini. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Privacy. Deze tool draait volledig in je browser. Je gegevens worden nooit naar een server geüpload.