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Design and CSS Tools

Design Token JSON Generator

Convert name, value, and type rows into design-token JSON and matching CSS custom properties.

Before You Use
  • Security, encoding, token, and network outputs are workflow references. Do not enter passwords, private keys, production tokens, or real vulnerability details; verify against official security guidance.
  • File, image, and document tools run in the browser, but originals may still contain personal or sensitive information. Review both source files and outputs before sharing or submitting them.
ToolRuns in the browser
Design Token JSON Generator working example

Convert name, value, and type rows into design-token JSON and matching CSS custom properties.

Runs in your browser
Sample result
Example Design Token JSON Generator result
Design result
- Preview value or CSS snippet
- Accessibility item to review
- Copy-ready token or style note
Next step: copy CSS, compare contrast, or open a related layout tool
The interactive tool loads in this area when JavaScript is enabled.

How to use Design Token JSON Generator

Common uses include Build token files, Translate design specs, Create CSS variable sets.

  • Open Design Token JSON Generator and enter the color, size, CSS value, image, or layout detail you want to tune.
  • Adjust the visual controls while watching the preview or generated CSS. Focus first on Build token files.
  • Generate the result, then check that it fits your design system, viewport, or brand rule. Use the next pass to Create CSS variable sets.
  • Copy the CSS, token, image reference, or preview value when it is ready for Translate design specs.

Useful for

  • Build token files
  • Translate design specs
  • Create CSS variable sets

Common issues

The preview differs from the real component.

Check inherited font, line-height, box sizing, background, and media query effects.

The style fails an accessibility check.

Increase contrast, keep visible focus, and verify touch target size in the actual component.

How to interpret the result

Use the generated value as a design-system draft and test it in the target viewport before shipping.

Related workflow

Next path: Design Token JSON Generator -> Flexbox Generator -> Focus Ring Generator. Keep the original input nearby so you can compare each result before using it elsewhere.

Privacy and review notes

This tool is designed to process inputs in the browser where the workflow allows it. Technical outputs are workflow references, so verify formats and never enter production secrets or private credentials. Use non-sensitive examples and review the output before sharing or submitting it.

Basis and limitations

Basis

  • The tool transforms or checks user-provided strings, tokens, hashes, encoded values, or network-format data in the browser.
  • Security-related pages are workflow references for development and learning, not production security validation.
  • The tool reads selected files, images, documents, or text in the browser for conversion, compression, merging, extraction, or preview.
  • File-style tools are designed for local-first preparation before sharing, upload, or publishing.

Limitations

  • Do not enter real passwords, private keys, production tokens, customer data, or sensitive vulnerability details.
  • A hash, token, encoding, or network result does not prove security strength or compromise status.
  • Even when processing happens in the browser, source files and outputs may contain personal data, location data, metadata, or copyrighted material.
  • Large or complex files can behave differently depending on browser memory and device performance.

Official check

  • For production security decisions, verify against organizational policy, official documentation, and professional security review.
  • Before sharing, submitting, publishing, or delivering files, review the source and output for sensitive data, permissions, and quality.

References and methodology

  • Official external source: OWASP Cheat Sheet Series — Practical implementation and verification guidance for web security.
  • Official external source: Korea Privacy Portal — Korean government guidance to check before storing or sharing personal data in files.

Review scope: We automatically check that the calculation basis and official source links are shown. No licensed medical, legal, or tax professional has reviewed this result individually, so confirm with the responsible agency or a professional before an important decision.