Overview
Encrypted local accounts, transaction review and signing with per-website account permissions.
Cloud Signer is a browser extension for Polkadot that keeps your signing accounts encrypted on your device. Choose which accounts each website can access, review transaction details or message bytes, and approve or reject individual signing requests. Open Cloud Signer from the browser toolbar to review pending requests.
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Details
- Version0.2.1
- UpdatedOctober 18, 2026
- Size756KiB
- LanguagesEnglish
- DeveloperJKRB INVESTMENTS LIMITEDWebsite
5th Floor 167-169 Great Portland Street LONDON W1W 5PF GBEmail
ross@jkrb.ioPhone
+44 7400 753420 - TraderThis developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.
- D-U-N-S222338933
Privacy
Manage extensions and learn how they're being used in your organization
Cloud Signer has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.
Cloud Signer handles the following:
Authentication information
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
Support
For help with questions, suggestions, or problems, visit the developer's support site