AnalysisUser Story + BDDBuild a story, checklist and Given/When/Then scenario.
Result
Local toolbox
Practical tools for analysis and development
Validate data, assemble artifacts and prepare technical snippets directly in the browser. No account, server upload or external database is required.
- 17 tools
- Works offline after the first visit
- Data stays in your browser
All operations run locally. Do not paste real secrets into JWT or API examples on a device you do not own.
Tool catalog
SecuritySecure passwordCryptographic generator with entropy estimate.
Result
DevelopmentUUID v4Create up to 50 random identifiers at once.
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SecuritySHA hashSHA-256, SHA-384 and SHA-512 through Web Crypto.
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DataJSON formatterValidate, format, minify and sort object keys.
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DataJSON diffShow added, removed and changed paths.
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DataBase64UTF-8 encoding, decoding and URL-safe mode.
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TextCaesar cipherEducational shift for Russian and English text.
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DevelopmentURL toolkitParse URLs and encode query components.
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DevelopmentJWT decoderRead header, payload and timestamp claims without signature verification.
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DevelopmentUnix timestampConvert seconds, milliseconds and local date-time.
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DataCSV ↔ JSONTwo-way conversion with quoted fields and delimiter support.
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DevelopmentRegex testerInspect matches, groups and replacement output.
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TextText and slugMeasure text and create a URL-friendly slug.
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DevelopmentAPI request → cURLBuild a safely quoted cURL command.
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AnalysisMermaid sequenceGenerate sequence diagram source.
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AnalysisProject briefGenerate structured Markdown for discovery.
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No tools found. Change the query or category.