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Text & Dev
JSON formatter, text diff, URL codec, JWT, UUID, QR codes, Base64 and timestamps — eight everyday utilities.
🔒 Local · no uploads⚡ Truly freeNo sign-upNo barriers
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JSON Formatter
JSON 格式化
Format, validate, minify, with precise error location
🆚Text Diff
文本对比
Line-by-line diff, additions and deletions at a glance
🔗URL Codec
URL 编解码
Encode/decode URLs, parse query params
🎫JWT Decoder
JWT 解码
Inspect a token's Header and Payload
🆔UUID Generator
UUID/随机码生成
Batch generate UUIDs, random passwords & strings
🔳QR Generator
二维码生成
Live preview QR codes, export in HD
🔐Base64
Base64 编解码
Encode/decode Base64 with full UTF-8 support
⏱️Timestamp
时间戳转换
Unix timestamp ⇄ datetime, bi-directional