Free Online Tools for Finance & Developers
Privacy-first utilities that run entirely in your browser. No data leaves your device.
Language: English · 中文
All Tools
Weight Converter
Convert between kg, lb, oz, g and more units with high precision.
SAP Data Import
Import and validate SAP data files. (Protected)
DBX Console
Database management workspace. (Protected)
JSON Formatter
Format, validate, and minify JSON data with syntax highlighting.
Base64 / URL Encode
Encode and decode Base64, URL-encoded strings instantly.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes using WebCrypto API.
UUID Generator
Generate UUID v1, v4, and v7. Bulk generation supported.
Unix Timestamp
Convert between Unix timestamps and human-readable dates.
Why Jingzhaoyuan?
🔒 100% Private
All tools run in your browser. We don't see, store, or transmit your data.
⚡ Lightning Fast
No server round-trips. Instant results with native browser APIs.
🆓 Free Forever
No signup, no paywall, no hidden fees. Use as much as you want.