All free online tools
103 tools across 10 categories. Everything runs in your browser unless the page says otherwise — no account, no upload, no install.
Showing 13 of 103 tools
JWT Decoder
Read JWT header and payload claims.
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Regex Tester
Test regular expressions with live matches.
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JSON Formatter
Beautify, minify and validate JSON.
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Base64 Encoder
Encode or decode Base64 text safely.
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Hash Generator
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes.
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Diff Checker
Compare two texts line by line.
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SSL Checker
Inspect a site's TLS certificate status.
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Cron Expression Builder
Build cron schedules and read them back.
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XML Formatter
Indent and clean up XML markup.
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HTML Formatter
Format HTML with readable indentation.
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CSS Formatter
Format or minify CSS rules.
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YAML Validator
Validate YAML structure and indentation.
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HTTP Status Checker
Explain HTTP status codes.
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