工具
All tools run locally in your browser — your data never leaves your device. Fast, private, and free.
Base64 編碼
Encode any text to Base64 format instantly. Supports Unicode. All processing happens locally in your browser.
Open ToolBase64 解碼
Decode Base64 strings back to readable text. Useful for inspecting JWT tokens, API responses, and data URIs.
Open ToolJSON 格式化
Format, validate, and minify JSON data. Beautify messy API responses or compact JSON for production use.
Open ToolPrivacy-first — all processing is done client-side. No uploads, no servers, no logs.