Rematters — Your Online Matter Code Vault

Your Online
Matter Code Vault

Rematters stores every Matter pairing code — manual digits, QR payloads, and device notes — safe inside Home Assistant with export and Google Drive backup.

Matter-ready Manual + MT: QR codes

Private Data stays on your HA

Portable JSON export anytime

Everything you need to never lose a code again

Built for smart home owners who swap hubs, renovate rooms, or simply misplace the setup sticker on the box.

Central vault

Store manual pairing codes and full Matter QR strings in one place — searchable and organized.

Home Assistant link

Optionally tie entries to an entity and attribute — pull the latest code from HA with one click.

Ingress UI

Manage codes inside HA with no extra login. Supervisor handles authentication and security.

Google Drive backup

Scheduled automatic uploads to your own Drive folder. Retention policy keeps storage tidy.

JSON export

Download rematters-export.json for migration, offline copies, or the free Rematters Viewer.

From sticker to vault in minutes

Install the app, add your devices once, and forget about lost manuals.

Install Rematters

Add the repository under Apps, install Rematters, and start it from Settings → Apps.

Save codes

Enter the manual code, scan the MT: QR payload, and add device name and category.

Backup

Enable Google Drive or export JSON. Local snapshots land in /data/backups/.

Recover anytime

Re-pair devices, share exports with family, or open the Viewer without HA access.

Read-only access without Home Assistant

Moving out, handing over a home, or keeping a phone copy? Load your export in the browser — nothing is uploaded to our servers.

Drag & drop rematters-export.json

Search and filter by category

QR codes rendered locally in your browser

Works offline after the page loads

{ "meta": { "version": 1 }, "categories": [ { "name": "Living room", "color": "#6366f1" } ], "codes": [ { "name": "Hue lamp", "manual_code": "1234-567-8901", "qr_payload": "MT:Y.K90…" } ] }

Add Rematters to Home Assistant

Add the Rematters-HA repository under Apps, install Rematters, and open the Ingress UI.

# Settings → Apps → Install app → Repositories → Add:
https://github.com/Rematters/Rematters-HA

# Settings → Apps → Rematters → Install → Start → Open Web UI

# Optional: local add-ons folder (developers)
/config/addons/git/Rematters-HA/
  repository.yaml
  rematters/

Add-on source: Rematters-HA · Google Drive OAuth & API: DOCS.md