Professional Hybrid support
Built for English HHKB Professional Hybrid and Hybrid Type-S keyboards, with both base and Fn layers visible before a write.
PROFESSIONAL HYBRID CONFIGURATOR
HHKB remapping,
directly in your browser.
Read, edit, back up, and write both layers from Chrome on Linux, macOS, or Windows.
Unofficial project. No affiliation with PFU Limited or Fujitsu.
Use at your own risk. You are responsible for any changes made to your keyboard.
Using Linux? Allow Chrome to access the HHKB configuration interface
Linux support is a first-class reason this project exists. Chrome needs permission to open the keyboard's
hidraw
configuration interface before WebHID can connect.
- Create a PFU device rule:
sudo tee /etc/udev/rules.d/99-hhkb.rules > /dev/null <<'EOF'
KERNEL=="hidraw*", ATTRS{idVendor}=="04fe", MODE="0666"
EOF- Reload the rules:
sudo udevadm control --reload-rules
sudo udevadm triggerUnplug and reconnect the keyboard, then reload this page and connect again.
Write checks
The app compares the connected keyboard identity and mode immediately before writing.
Baseline and readback
The current layers must match your editing baseline, and both written layers are read back.
Direct browser access
WebHID talks to the keyboard without an extension. No account or keymap database is used.
Pending changes
Edits remain local until you confirm a write.
No staged changes.
Back up current keymap
Save both layers and keyboard metadata as a portable JSON file.
Restore backup
Validate and stage a JSON backup. Importing never writes to the keyboard.
Restore default keymap
Stages the official default for this model and DIP switch state. Return to Remap, review the changes, and confirm the write to apply them.
Write review
Before writing, the app re-reads both layers and rejects a stale baseline.
Writing modifies the keymap stored on your keyboard. Proceed entirely at your own risk.
ABOUT THIS TOOL
HHKB keymap editing without a desktop installer
Chrome, Edge, and Opera
Uses WebHID in a Chromium-based browser on Linux, macOS, or Windows. No extension or account is required.
Portable keymap links
Share a compact link that previews both layers. Recipients must connect, read, stage, and explicitly confirm before writing.