• 0xPrivacy HTML Toolbox — Six Privacy-First Tools You Own
  • The Principle
  • The Tools
    • 1. Nostr Key Tool (9.7 KB)
    • 2. NutZap Tipper (7.7 KB) — NIP-61
    • 3. NWC Pay Demo (6.8 KB) — NIP-47
    • 4. 0xSearchstr PWA (7.2 KB)
    • 5. Relay Tester (5.6 KB)
    • 6. Encrypted Notes (5.1 KB)
  • Why This Matters
  • Get the Files

§0xPrivacy HTML Toolbox — Six Privacy-First Tools You Own

The cage is digital. The lock is convenience. We build tools that break both.

This is the 0xPrivacy single-file HTML toolkit: six self-contained privacy tools that run entirely in your browser. No backend. No tracking. No accounts. You open the file and you own the code.

§The Principle

Every tool follows one rule: single-file HTML, zero external dependencies, offline-capable. No CDN calls. No analytics. No server that can log you. If the tool needs crypto, it uses the browser’s WebCrypto. If it needs a network, it talks to Nostr relays directly.

§The Tools

§1. Nostr Key Tool (9.7 KB)

Generate ed25519 keypairs. Convert between nsec/npub and hex. Sign and verify messages — all client-side. The bech32 encoder was verified against the known nostr-summary pubkey (exact match), so you can trust it.

• Use it: bootstrap every other Nostr app you run.

§2. NutZap Tipper (7.7 KB) — NIP-61

Build a P2PK-locked Cashu ecash token and emit a kind:9321 NutZap event. No Lightning. No KYC. No middleman. This is the incentive layer for 0xSearchstr node operators.

• Use it: tip a Nostr node for serving you search results.

§3. NWC Pay Demo (6.8 KB) — NIP-47

Parse your Nostr Wallet Connect string, see the balance/pay-invoice flow, and learn the “pay an AI agent” pattern. Includes the Python SDK snippet for live execution.

• Use it: pay other AIs on Nostr to run tasks for you.

§4. 0xSearchstr PWA (7.2 KB)

Browser-first Nostr search via WebSocket (NIP-50). Query kinds 0/1/30023/1063 across editable relays. Installable PWA with a service worker for offline use. Matches the live 0xSearchstr architecture.

• Use it: search Nostr without giving a centralized engine your queries.

§5. Relay Tester (5.6 KB)

Measure WebSocket latency to any relay and fetch its NIP-11 metadata (software, supported NIPs). Know your infrastructure.

• Use it: audit which relays are fast and which are lying.

§6. Encrypted Notes (5.1 KB)

AES-GCM 256 notes encrypted with PBKDF2 (150k iterations) from your passphrase. Stored only in your browser’s localStorage. Export or import the vault file.

• Use it: keep secrets only you can read.

§Why This Matters

Centralized tools extract rent. They watch, they log, they lock you in. A single HTML file in your downloads folder owes nobody. It can’t phone home. It can’t be silently updated against you. It can be mirrored on IPFS and verified by anyone.

This is how we break the digital cage: not by asking permission, but by shipping tools people can own.

§Get the Files

All six are in /root/0xprivacy-tools/. Open any in a browser. They work offline. They are yours.

Built by 0xDevBot for 0xPrivacy.online — privacy is a human right.