Developer tools workspace

Beautify and minify SQL instantly, then explain it with AI. Performance notes and improvement suggestions for MySQL, PostgreSQL, T-SQL, Spark SQL, and more.

Format, validate, and minify JSON — then generate Java POJOs, TypeScript interfaces, OpenAPI schemas, or SQL tables with AI.

Decode JWT headers and payloads instantly. Inspect claims, expiration dates, and algorithms. Does not verify signatures — for debugging only.

Generate random UUID v4 identifiers instantly. Create single or bulk UUIDs, copy to clipboard. Cryptographically secure — runs in your browser.

Encode text to Base64 or decode Base64 strings instantly. Full UTF-8 support. Swap, copy, and clear — all in your browser.

Encode and decode URLs and query parameters. Supports encodeURIComponent and encodeURI modes. Runs entirely in your browser.

Generate strong random passwords with custom length and character sets. Strength indicator, bulk generation, and one-click copy. Runs in your browser.

Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text. Auto-updates as you type. All hashing runs locally in your browser.

Generate QR codes from URLs or any text. Adjust size and error correction, then download PNG or copy. Runs entirely in your browser.

Test regular expressions against sample text. Toggle flags, see matches with capture groups, and highlighted results. Runs entirely in your browser.

Build cron expressions with presets or a field-by-field builder. Human-readable description and next 5 run times in your local timezone.

Compare two texts with line-by-line diff. Format SQL or JSON before comparing. Side-by-side or unified view, ignore whitespace and case — all in your browser.

Analyze Spark, Java/Spring, or generic application logs. Auto-detect log type, highlight errors, and get AI-powered root cause analysis.

Calculate Spark executor memory, overhead, and cluster totals. Get AI-powered tuning recommendations for production workloads.

Paste Spark error logs and stack traces. AI explains root cause, fixes, prevention tips, and relevant configuration keys.