Kael API release history — OpenAPI Spec
/api/html/encode — HTML entity encoding / HTML实体编码/api/html/decode — HTML entity decoding / HTML实体解码/api/base/convert — Number base conversion (2-36) / 进制转换/api/url/parse — URL component parser / URL解析/api/case/convert — Case conversion (camel/snake/kebab/pascal) / 命名规范转换/api/json/yaml — JSON to YAML converter / JSON转YAML/api/html/minify — HTML minifier / HTML压缩/api/string/reverse — String reversal / 字符串反转/api/string/truncate — String truncation / 字符串截断/api/ip/validate — IP address validator / IP地址验证/api/jwt/generate — JWT token generator / JWT令牌生成/api/crypto/encrypt — AES-256-CBC encryption / AES加密/api/crypto/decrypt — AES-256-CBC decryption / AES解密/api/idcard/validate — Chinese 18-digit ID card validator (checksum, birthdate, gender, age)/api/phone/validate — Chinese phone number validator + carrier detection (移动/联通/电信/广电)/api/chmod — Unix permissions calculator (numeric ↔ symbolic)/api/bytes — Byte/storage unit converter (B→PB)/api/date — Date/epoch converter with timezone + leap year/api/css/minify — CSS minifier/api/sql/format — SQL query formatter/api/cron — Cron expression parser/validator with next run times/api/text/stats — Text statistics (word count, reading time, Chinese support)/api/ip/parse — IPv4/CIDR subnet calculator/api/headers — HTTP request headers echo/api/keys/register)/api/tiers — List pricing tiers/api/screenshot — Website screenshot via Playwright (Pro tier)/api/password-strength — Password strength checker/api/placeholder — Placeholder image generator/api/slug — URL slug generator/api/jwt/decode — JWT token decoder/api/shorten — URL shortener