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Visualiseur Tiktoken — Outil en ligne gratuit

Visualise ton texte tokenisé — coloré, instantané, pour GPT/Claude/Gemini

Visualise comment les modèles IA tokenisent ton texte. Chaque token dans une couleur différente. Comprends pourquoi tes prompts coûtent cher.

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Characters
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Free tiktoken visualizer — see tokens colored, live

Outilolis 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?
Non. Tokenization runs in your browser. Zero server calls.

À retenir

  • Tiktoken Visualizer is a free, browser-based developer tool — see your text tokenized — colorful, instant, for gpt/claude/gemini.
  • Non signup, no downloads, no file uploads. Outils run in your browser; the few that need an outside service say so on the page.
  • 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 Outilolis — 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

Prix
Gratuit — sans limites, sans filigrane, sans paywall
Confidentialité
Traité dans votre navigateur. Les outils qui ont besoin d’un service externe l’indiquent sur la page. Les visites sont comptabilisées (Google Analytics).
Plateforme
Tout navigateur moderne — desktop, tablette ou mobile
Catégorie
Développeur Outils on Outilolis
Hors ligne
Works offline after first visit (Progressive Web App)
CaractéristiqueDétails
OutilTiktoken Visualizer
CatégorieDéveloppeur
Inscription requiseNon
Téléversement de fichierAucun — traité dans le navigateur
Compatible mobileEntièrement adaptatif
CoûtGratuit pour toujours

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. Processing happens in your browser and files are never uploaded; the few tools that need an outside service say so on the page.

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% Confidentialité. Cet outil fonctionne entièrement dans votre navigateur. Vos données ne sont jamais envoyées à un serveur.