Developer Tools

Browser-based developer utilities for JSON, HTML, CSS, JavaScript, URLs, Base64, regex, meta tags, and more.

JSON Formatter

Format messy JSON into readable, indented output directly in your browser.

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JSON Validator

Validate JSON and see a clear success message or parse error.

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HTML Formatter

Format compact HTML into cleaner readable markup for quick review.

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CSS Formatter

Beautify CSS rules with quick browser-based formatting.

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JavaScript Formatter

Make JavaScript snippets easier to scan with basic formatting.

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URL Encoder Decoder

Encode and decode URLs, query strings, and text for links.

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Base64 Encode Decode

Encode text to Base64 and decode Base64 back into readable text.

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HTML Entity Encoder Decoder

Convert HTML characters to entities and decode entities back to text.

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Color Picker

Pick a color and copy HEX, RGB, and HSL values.

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Regex Tester

Test a regular expression against sample text and view matches.

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Timestamp Converter

Convert Unix timestamps to dates and dates back to timestamps.

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UUID Generator

Generate random UUID values for testing, mock data, and development.

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Lorem Ipsum Generator

Generate placeholder paragraphs for layouts, designs, and mockups.

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Markdown Previewer

Preview basic Markdown headings, lists, links, bold text, and paragraphs.

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Meta Tag Generator

Generate title, description, canonical, and Open Graph meta tags.

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Robots.txt Generator

Create a simple robots.txt file with sitemap and crawl rules.

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