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QR Code Styler

Generate a clean colored QR code with custom size and margin.

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Built for quick debugging

Developer tools avoid unnecessary setup and keep common snippets, tokens, and test data in your browser where possible.

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Quick workflow

  1. Paste the value, snippet, command, or sample data.
  2. Run the parser, generator, tester, or converter.
  3. Copy the result and continue with the suggested next tool.
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Useful tip

Chain small tools together: decode, inspect, format, compare, and generate types from the same data.

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LinkedIn Preview Asset Checklist

Check LinkedIn share titles, descriptions, image dimensions, ratio, size, alt text, and destination URL before publishing.

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Social Copy Preview

Preview X, LinkedIn, and Facebook post length, truncation risk, hashtags, mentions, links, and share copy readability.

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UTM Builder

Build campaign tracking URLs with UTM parameters

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Campaign Launch Checklist

Build a channel-aware launch checklist, track verified completion and blockers, and export Markdown, CSV, or JSON locally.

🎯

Landing Page CTA Consistency Checker

Compare ad, landing-page CTA, and form promises for inconsistent keywords, numbers, offers, and actions.

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Markdown Preview

Real-time preview of Markdown

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Regex Tester

Test regular expressions

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Browser Cache Policy Checker

Paste response headers to parse max-age, immutable, and no-store, and flag stale-asset cache risk locally.