Suggestion: StaysPrivate — browser-local file conversion tools (MIT, no upload)

Entry format: StaysPrivate - Browser-based file conversion tools (EML/MBOX to PDF, Office metadata removal, C2PA inspection, bank CSV to QBO/OFX, vCard/CSV, HEIC to PNG) that run entirely client-side with no upload step. Processing libraries are open source: https://github.com/staysprivate-wq/staysprivate-core

Why it fits:

• No user tracking on the site, no accounts
• The privacy claim is verifiable: disconnect from the network after loading a tool page and it still works
• Processing code is open source (MIT), so the claim is auditable rather than asserted

Disclosure: I'm the author. Free with per-batch limits; a one-time paid tier lifts them. Happy to open a PR in the exact README format instead if preferred.