主流端對端加密 email。免費方案可匿名註冊，付費方案接受加密貨幣。
Free tier 1 GB · paid €4–9/mo · BTC for paid · email recovery optional but useful
標籤 · AUDITED
Provider has published a third-party security audit (smart-contract, custody, operational). Audit recency factors into xmr.club grade.
Open-source cloud password manager. Optional self-host.
Free tier · paid $10/yr · self-host free
Client-side encryption for cloud storage — Dropbox / GDrive / iCloud see only ciphertext.
Free (desktop) · ~$15 one-time (mobile)
Cross-platform TOTP app with E2E-encrypted sync. Free tier, no account required for local-only use.
Free · sync optional
Pixel 上的硬化 Android — 完全可審計、開源、針對攻擊者預算優化。
Free · Pixel hardware required · install via web flasher
Offline, file-based password vault. No cloud, no account.
Free · GPLv3
Tor-Browser-derived browser without Tor. Use with Mullvad VPN.
Free
P2P file-share over Tor onion services. No third-party hosting.
Free · GPLv3
Security-via-compartmentalisation desktop OS. Every app runs in its own Xen VM.
Free · GPLv2
Newsroom-grade anonymous-source submission system. Run by ~70 outlets (NYT, WaPo, ProPublica, Guardian).
Free · audited · run by ~70 newsrooms
E2E-encrypted notes app. Open-source, audited, accepts crypto on paid tiers.
Free · paid from $90/yr · BTC/XMR · self-host option
Tor + 失憶系統的 Live OS — 開機重置，所有流量強制走 Tor。
Free · GPL
The reference anonymity browser. Bundled with Tor + NoScript + safe defaults.
Free · GPLv3
Full-disk + container encryption with plausible deniability.
Free · Apache 2.0
Two-VM compartmentalisation — workstation never sees the public internet.
Free · GPL
Anonymous account IDs, accepts cash + XMR + monero. Strong audit history.
$6–10/mo depending on plan · cash, XMR, BTC, card · anonymous account ID
最長的無記錄營運紀錄，接受 XMR，採用無帳戶模式。
€5/mo flat · cash, XMR, BTC, BTC LN, card · no email needed
Bitcoin-only hardware wallet by Coinkite. Air-gapped via PSBT-on-SD. Reference signer for Bitcoin maxis.
$120 hardware · Bitcoin-only · PSBT-via-SD
Air-gapped BTC hardware wallet. Camera-only QR signing, US-manufactured, open-source firmware.
$199 hardware · open firmware · QR-only signing
DIY air-gapped Bitcoin hardware wallet built on Raspberry Pi Zero. No firmware secrets, no vendor lock-in.
~$50 DIY parts · open-source · stateless
Decentralised messenger — no phone number, no email, onion-routed.
Free · GPLv3
Swiss paid one-time messenger. Phone-number optional, anonymous IDs, no metadata.
$5 one-time · Swiss · audited · no phone required
Free tier exists; paid plans accept BTC. Email required at signup.
Free tier · paid $5–10/mo · BTC accepted, card requires KYC · email required