Office assistance
Free, browser-based Office assistance — no upload, no sign-up, everything runs on your device.
Markdown editor
Free online Markdown editor tool
JSON editor
Free online JSON formatting, verification, diff, import, export, and editor tools
Barcode
Generate barcodes online for free
QR code
Generate and scan QR codes online for free, support batch parsing and downloading
Image OCR
Free online text extraction from images, supporting batch recognition of simplified, traditional and English
ZIP tool
Free online compressed package compression and decompression tool, supports compression levels 1~9 and decompression of ZIP, PPT, WORD, etc.
Files are processed in your browser and never uploaded to a server.
No sign-up, no watermark and no limits — just open and use.
Once loaded, most tools keep working without a connection.