Cron Expression Generator Build cron expressions from readable options, validate them, and preview the next run times.
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Meta Tag Generator Generate SEO, Open Graph, and Twitter meta tags with a live social preview.
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Robots.txt Generator Build a valid robots.txt with user agents, allow and disallow rules, crawl delay, and sitemap.
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XML Sitemap Generator Generate a valid XML sitemap from a base URL with priorities, change frequency, and last modified dates.
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JSON Formatter & Validator Pretty-print, minify, and validate JSON with helpful error positions and one-click copy.
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XML Formatter Validate and pretty-print XML with configurable indentation, or minify it for transport.
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HTML Encoder & Decoder Escape or unescape HTML entities, including named entities, numeric references, and emoji.
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URL Encoder & Decoder Encode or decode URLs and query values with correct handling of reserved characters and Unicode.
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Base64 Encoder & Decoder Encode text or files to Base64 and decode Base64 back to text or bytes.
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Regex Tester Test regular expressions with live matches, capture groups, flags, and safe highlighted output.
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