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    Dev tools

    JWT DecoderDecode JWT tokens in your browser. Inspect claims, live expiry countdown, weak-algorithm warnings, and copy fields — no upload, no signup.
    JSON FormatterFormat and validate JSON with exact line-number errors. Pretty-print, minify, and see key count plus nesting depth — runs in your browser, no signup.
    JSON → TypeScriptConvert JSON to TypeScript interfaces or Zod schemas. Toggle strict vs loose nulls, copy Zod output, and generate types from API responses — free, in-browser.
    JSON → BigQueryGenerate BigQuery table schemas and dbt model stubs from sample JSON. See field counts, nested record totals, and copy schema JSON — all client-side, free to use.
    SQL FormatterFormat SQL for PostgreSQL and MySQL with complexity badges and anti-pattern flags. Copy pretty or minified output — processed locally, no signup.
    Cron BuilderBuild cron schedules with live next-run countdown. Export to AWS EventBridge, Kubernetes CronJob, or GitHub Actions — plus daily and monthly run estimates.
    RegEx TesterTest regex with live match counts, flag explanations, and multi-line cases. Debug JavaScript patterns in real time — free, runs in your browser.
    Base64 EncoderEncode and decode Base64 text or files with URL-safe mode and size ratios. Drop files, copy output instantly — all processing stays local in your browser.
    cURL ConverterConvert curl to Python, JavaScript, TypeScript, or Go with parsed summaries and auth masking warnings. Paste any curl — copy-ready code in seconds.
    YAML ↔ JSONConvert YAML, JSON, or TOML with anchor detection and key-depth stats. Paste config, see nesting depth, copy output — free converter, no signup.
    Markdown PreviewerPreview markdown live with GFM or CommonMark modes. Copy rendered HTML, see word count and reading time — side-by-side editor runs in your browser, free and private.
    Hash GeneratorGenerate or verify MD5, SHA-1, SHA-256, SHA-512, and bcrypt hashes online. See digest lengths, compare hashes in verify mode — all computed locally in your browser.
    Unix TimestampConvert Unix timestamps to human dates with auto ms/sec detection and duration display. Click Now for current epoch — free converter, runs in your browser.
    UUID GeneratorGenerate, validate, and bulk-export UUIDs, ULIDs, and CUID2s. Detect version, decode v7 timestamps, and download .txt or .csv — free ID generator in your browser.
    JSON DiffCompare two JSON objects with added, removed, and changed summaries. Toggle show-only-changed view for cleaner diffs — semantic JSON diff runs locally, free to use.
    Password GeneratorGenerate strong passwords with zxcvbn strength scores and crack-time estimates. Customize length and character sets, copy or clear — nothing stored on servers.
    Password AuditorAudit passwords against NIST 2024 or legacy rules with OWASP and PCI badges. Optional Have I Been Pwned check — k-anonymity only, in your browser.

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