What's new

Product updates across bensevern.dev, newest first.

Clean Room

Check list overlap without sharing data using the PPRL clean room

Jun 20, 2026 · PR #334

New features

  • The Privacy-Preserving Record Linkage clean room lets two parties find out how much their lists overlap without either side ever sharing raw data. Each value is converted to a fingerprint, and only fingerprints are compared.
  • Choose browser mode (true clean room: raw data never leaves your device, free up to 10,000 rows per side) or server mode for larger lists (file is hashed on upload and immediately discarded).
  • Both modes use the same encoder, so switching to the more private browser tier costs no matching accuracy.
Clean Room

True clean-room mode: your raw data never leaves your browser

Jun 20, 2026 · PR #332

New features

  • New browser privacy tier at /cleanroom: both parties turn their lists into cryptographic fingerprints in their own browser, so your raw rows never reach our server, not even in memory.
  • The match key lives only in your link's # fragment, which browsers never send to a server. We broker the overlap blind.
  • Free up to 10k rows per side. Same results, stronger privacy.

Other updates

  • New guide: how the clean room protects your data and how accurate it is (/docs/guides/cleanroom-privacy-and-accuracy).