Developer Tools

JSON, Base64, hash, and dev utilities

Available Tools

Korean Mock Data Generator
Free online Korean Mock Data Generator. Instant developer tool in your browser. No signup required.
CSV Korean Encoding Fixer (EUC-KR ↔ UTF-8)
Fix mojibake Korean CSV from Excel: detect EUC-KR/CP949 vs UTF-8 in the browser, preview rows, download UTF-8 BOM CSV.
Korean ZIP Filename Encoding Repair (CP949)
Fix garbled Korean ZIP filenames from Windows Explorer: detect CP949/EUC-KR vs UTF-8 in the browser, preview before/after names, download a UTF-8 ZIP. Nothing is uploaded.
YAML to JSON Converter
YAML to JSON converter in the browser: paste or drop YAML, keep multi-document --- streams, toggle YAML 1.1 yes/on booleans, see line-numbered errors, then copy or download pretty or compact JSON. Nothing is uploaded.
XML to JSON Converter
XML to JSON converter in the browser: paste or drop XML, turn repeated sibling tags into arrays, keep attributes as @keys or a $ object, parse multi-document streams and fragments, then copy or download JSON. Nothing is uploaded.
Sitemap XML Validator
Sitemap XML validator in the browser: check urlset and sitemapindex protocol rules — loc, lastmod, changefreq, priority, duplicate URLs, image/hreflang extensions, 50k cap — then copy a report or download a CSV. Nothing is uploaded.

Developer

6 tools · 6 live