Tokenizer Playground — Empty editor demo

Dev ToolsSee it livexenova-the-tokenizer-playground.static.hf.space

A tokenizer selector sits above a text editor, token and character counters, and a separate output panel.

Tokenizer Playground — Empty editor demo — captured interface — Viewport capture · opening screen

Public demo · 2026-09-06Open full image ↗

AI interfaces

Why this pattern works

Make model-dependent text processing visible through paired input and output.

Design notes

Surface: A tokenizer selector sits above a text editor, token and character counters, and a separate output panel.
Navigation: Tokenizer selector and output display options
Layout: Stacked editor, counters and output
Density: Focused controls with comfortable spacing.
Color: White, slate and light gray
Type: Clear heading hierarchy and readable form labels.
Pattern: Make model-dependent text processing visible through paired input and output.
States: Demo initial state with zero tokens and characters.
Don't: Adapt the layout to your own product and supported capabilities; write your own examples and keep important actions clearly labeled.

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Tech stack

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What should the tool respect?

Preview & edit prompt

Prompt text

# My project
[Describe the product, audience, and screen you want to improve]

Stack: Use the existing project stack
Task: Implement the interface and verify the result in the existing project.

## Tool guidance (Any AI tool)
Use available project tools to inspect, implement, and test. State any unavailable capabilities.

# Design reference: Tokenizer Playground — Empty editor demo
Source: https://xenova-the-tokenizer-playground.static.hf.space/index.html
Swipefile reference: https://swipefile.design/ref/ai-demo-the-tokenizer-playground/
Captured: 2026-09-06. This is a dated reference, not a claim about the current live product.
Capture scope: one viewport. Do not infer unseen page sections or a complete user flow.

## Objective
Adapt the interaction and layout patterns below to my project. Use my own content and identity. Do not reproduce logos, proprietary copy, or brand assets.

## Reference notes
- surface: A tokenizer selector sits above a text editor, token and character counters, and a separate output panel.
- nav: Tokenizer selector and output display options
- layout: Stacked editor, counters and output
- density: Focused controls with comfortable spacing.
- color: White, slate and light gray
- typography: Clear heading hierarchy and readable form labels.
- pattern: Make model-dependent text processing visible through paired input and output.
- states: Demo initial state with zero tokens and characters.
- dont: Adapt the layout to your own product and supported capabilities; write your own examples and keep important actions clearly labeled.

Useful for: Make model-dependent text processing visible through paired input and output.

## Acceptance criteria
- Existing project conventions, design tokens, working functionality, and unrelated changes are preserved.
- Two or three reference principles clearly support the user's task; conflicts are resolved in favor of usability and the existing product.
- Reusable components and semantic HTML express the interface. Available licensed assets are used; important UI text is never rendered as a bitmap.
- Every visible control has a defined behavior. Loading, empty, error, success, disabled, and long-content states are specified where relevant. Demo data is clearly labeled.
- Navigation and content adapt at 375px, 768px, and 1440px without horizontal page overflow. Keyboard use, visible focus, labeled inputs, at least 44px touch targets, readable contrast, and reduced motion are supported.
- Verification distinguishes rendered behavior from proposals and identifies anything still requiring a backend or external service.

## Quality bar
Clear hierarchy, consistent spacing, restrained surfaces, and purposeful motion. Avoid decorative gradients, excessive cards, placeholder buttons, and invented metrics unless the project calls for them. Do not claim a feature is connected or tested without evidence.

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## Objective
Adapt the interaction and layout patterns below to my project. Use my own content and identity. Do not reproduce logos, proprietary copy, or brand assets.

Useful for: Make model-dependent text processing visible through paired input and output.

Tokenizer Playground — Empty editor demo

Make it your own

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