Your Cardputer's SD card, in any browser.
Browse, preview, upload and download files on your M5Stack Cardputer / Cardputer ADV (ESP32‑S3) from a phone or laptop, over Wi‑Fi or one USB cable. No app, no cloud, no internet needed.
Status: runs on the Cardputer ADV via M5Launcher. The original Cardputer should work but is untested; reports welcome.
- Drag-and-drop upload of files and folders, resumable, any size
- Previews: photos, video, music, PDF, text (with editor)
- Search the whole card, download any selection as one ZIP, Trash
- USB cable mode: network adapter at
http://192.168.7.1, or lend the card as a USB drive - QR codes on the device to join its Wi‑Fi and sign in
- WebDAV network drive (Finder, VLC, Infuse, rclone)
- Installs from M5Launcher, with a Back to Launcher button
- Download
PocketWUI.binfrom the latest release and copy it to the SD card. - On the Cardputer: M5Launcher → SD →
PocketWUI.bin→ Install.
No Launcher? Flash PocketWUI-full-flash.bin at 0x0 with esptool-js or
esptool.py --chip esp32s3 write_flash 0x0 PocketWUI-full-flash.bin (hold G0 while plugging in).
- The screen shows a Wi‑Fi name, key, address and a random password.
- Press the side button for a QR code to join, and again for one that signs you in. Or join by hand and open
http://192.168.4.1. - Add your home Wi‑Fi in Settings → Wi‑Fi, or on the Cardputer press
w, pick a network (;/.), type the key and press Enter. Then usehttp://cardputer.local. - Set your own password in Settings → Device.
Forgot it? Hold the side button for 5 s to reset the password and Wi‑Fi (your files are kept).
Text too small? Press + / - on the Cardputer's main screen for larger or smaller text (three sizes, remembered).
- Guide: ways to connect, tips, M5Launcher, troubleshooting, privacy, test status
- Developing: build, PC simulator, tests, HTTP/WebDAV API
- Changelog
- Contributing: bugs, feature requests, pull requests
Built on M5Unified / M5GFX, EspUsbDevice and pioarduino. Works with M5Launcher. MIT licence.