Ranked on documented facts, not sponsored placement - every provider page shows the evidence.
Short answer: 33 providers in our ranking ship open-source clients. Open code proves the client behaves - it proves nothing about servers - and only Mullvad and IVPN extend verifiability across the whole stack.
providers on this page: 33 · independent audit on file: 55% · court-proven no-logs: 2 · open-source apps: 100%
quick picks
The most honest VPN on the internet, and in 2026 still the one this industry is measured against: numbered accounts, cash or Monero accepted, open-source…
The most credible self-hosting on-ramp in the VPN space, built by and for people inside the censorship: the app is free and open source, you connect it to your…
The anti-affiliate champion candidate holds up: no affiliate program (stated out loud on the homepage), flat honest pricing, quarterly warrant canary, annual…
The most honest mainstream deal in 2026: open-source apps, real audits, a genuinely usable free tier with no data cap, and a transparent renewal model - and in…
The most interesting new VPN architecture since multi-hop: a two-party relay where Obscura (US) only ever sees your connecting IP and Mullvad (Sweden) only…
cryptostorm.is is verifiably LIVE (fetched 2026-09-29, HTTP 200) with a PGP-signed warrant canary dated July 1, 2026 and an unbroken Wayback snapshot record…
The only consumer VPN with a real metadata-protection architecture - a 5-hop noise-generating Sphinx mixnet with cover traffic - and it costs just $4/mo on the…
A censorship-unblocking tool that now wears nonprofit clothes: Lantern's parent became the 501(c)(3) Brave New Software Project and the site now reads like a…
The gold standard for connecting your OWN devices, and a poor substitute for a consumer VPN - which is exactly what it says on the tin. Tailscale is a…
Sentinel is real decentralized-VPN infrastructure - an open-source Cosmos chain with on-chain sessions, Wallet-only signup and per-gigabyte pricing that…
The incumbent of self-hosted business VPNs, and still a safe pick in 2026 - with one honest fork in the road. Access Server is the polished, supported way to…
The most polished way to hand censorship-resistant access to people who cannot configure a VPN: a few clicks in the Outline Manager builds a Shadowsocks server…
The best-evidenced no-logs claim in the business - twice tested in US courts (2016, 2018) and twice found to have nothing - plus the cheapest long-term renewal…
A DNS-layer filtering service that has grown up in public: born January-April 2021 out of the Windscribe team (same three founders, spun out precisely because…
The most trustworthy free VPN on structural grounds: an anarchist Seattle collective that has run since 1999, funds itself by donations, asks no account…
The only big-name VPN from a nonprofit-owned company: open-source clients, a 2021 Cure53 audit, WireGuard-only on Mullvad's network and a strict 'we don't…
Hysteria 2 is not a VPN provider - it is free, MIT-licensed proxy software you deploy on your own server, and this dossier treats it that way: there is no…
The most ambitious attempt to replace the VPN trust model with a market - and one of the least convincing products to actually use. The design is real…
Community-run Italian operator with the best power-user transparency stack in the business: fully open-source Eddie client (GPL-3.0), 258 bare-metal entry IPs…
A network fabric, not an anonymity VPN - and the honest category match for it is 'Hamachi successor with an enterprise SDN conscience'. ZeroTier connects YOUR…
Not a VPN service - the protocol every commercial VPN wants to be built on, and the most evidence-backed tunnel protocol in existence. You are the provider…
The mainstream default of DNS-level filtering, with a genuinely honest scoping the operator itself states plainly: AdGuard DNS sits at the resolver - it…
The reference point for anonymity - but not a VPN, and this dossier is honest about that. Tor is a US-registered 501(c)(3) nonprofit (2006, born from mid-1990s…
I2P is a genuinely different thing from a VPN and should never be bought as one: it is a free, decentralized garlic-routing network optimized for services…
The current state of the art in self-hosted censorship circumvention, and the reason 'buy a VPN' no longer has one right answer for people behind serious…
VPN Gate is a legitimate, transparently-run academic experiment that is genuinely free forever and genuinely useful for one thing: getting past government…
CalyxVPN is one of the very few genuinely free, genuinely anonymous VPNs - no account, no email, open-source client and server, run by a respected New York…
A genuine dVPN with real scale (22,000+ active nodes in 135+ countries per the network homepage, 45k bandwidth providers per MystNodes, both fetched…
The strongest case on this site for 'sometimes the answer is a DNS blocker, not a VPN' - and a product whose limits the operator itself does not oversell…
A transparency-first circumvention tool, not a privacy VPN - and it says so itself ('If you require anonymity over the Internet then you should use Tor instead…
The security-community's default answer to 'how do I get my own VPN': Ansible scripts from Trail of Bits that build a WireGuard/IKEv2 server on a $5 VPS with…
Snowflake is a bridge, not a tool you 'use' the way you use a VPN: it is the Tor Project's pluggable transport that smuggles Tor connections past censors by…
Althea should not appear in any consumer VPN comparison as a VPN, and this dossier exists mainly to say so precisely: the project started (2017-2019) as a…
100% of the 33 providers on this page ship open-source clients[1]. The claim's value is precise: the code that runs on your device is inspectable, so telemetry calls, logging statements and kill-switch logic are checkable by anyone. That kills the worst client-side betrayals outright. It does not reach the server rack, which is where the logging question actually lives.
A published source tree and a published binary are two different promises. Reproducible builds close the gap: anyone can compile the public code and compare the result byte-for-byte against the shipped app[2]. Without it, "open source" is an honor system with extra steps - the binary could differ from the repo. With it, the client-side story becomes verifiable rather than believable. Among VPN providers this practice is rare enough to be a differentiator on its own.
Open clients on closed servers split the trust problem in two. The client half is code review; the server half is institutional evidence - audits with infrastructure scope, and the raid/seizure record that the court-proven hub tracks. TunnelCrack made the gap concrete in 2023: the attacks exploit tunnel configuration, and only operators who published a reasoned technical response[3] could be judged on it. Source availability helped analysts do that - it is an enabler, multiplied by the audit cadence[4].
55% of the providers on this page pair their open source with paid audits. The combination is what turns inspection into assurance: the repository shows what should run, the audit report shows what someone competent found when they looked, and reproducible builds tie the two together2. Our audit hub explains how to read those reports; the short version is that scope and date matter more than the badge. An open-source provider without an audit has published its homework and handed in nothing.
State-level censorship is the one arena where closed protocols out-innovate: NordWhisper and Surfshark's Dausos ship obfuscation updates faster than open forks can coordinate responses[6]. The open answer exists - AmneziaWG[5] hardens WireGuard against fingerprinting - but its updates lag the detection waves. If you need censorship resistance, read the China hub and accept the trade consciously; if you need verifiability, the open stack is the only defensible default, and the Tor project[7] remains the reference standard for what radical openness buys.
That the client binary you install does what the documentation claims - no hidden telemetry, no extra logging calls, no backdoor in the kill switch. It proves nothing about the servers, which are remote and usually not source-available. The strongest operators close that gap with reproducible builds and infrastructure documentation.
Proton VPN, Mullvad, PIA, IVPN, AirVPN, NymVPN and Riseup in our ranking - 100% of the 33 providers on this page. The WireGuard protocol itself is open source everywhere, so "open protocol, closed app" is the more common hybrid; the apps are where the trust decision concentrates.
If anyone can compile the public source and get a binary byte-identical to the published app, the source code is proven to correspond to what you install - otherwise "open source" just means the code exists somewhere. Mullvad publishes this for its apps; it is the difference between transparency as policy and transparency as a checkable artifact.
Only for obfuscation against state censors - proprietary stealth protocols (NordWhisper, Surfshark's Dausos, Astrill StealthVPN) can be patched faster against detection waves precisely because nobody can study them. Everywhere else they are a trust liability: you run a closed box with no verifiable claims. The China hub covers when that trade makes sense.
No. Public code that nobody reads is security theater with better PR. The operators we rate highest pair open source with a paid audit cadence - the audit tells you someone competent actually read what the repository shows. Open source is necessary for verifiability, never sufficient for assurance.
Not at all. The client can be spotless while the server logs every connection. That is why our evidence hierarchy centers on server-side evidence - audits of the infrastructure, court tests - rather than client code. An open app on a logging server is an honest log collector.