A small software company.Built with big love.A small software company. Built with big love.
Every product here started as a feeling, not a market analysis. Meet exists because someone we love was struggling to keep up in her second language. We build the thing, we build it private by default, and we don't ship a claim we can't defend.
One studio. A family of privacy-first tools.
Railgun builds the software we wish existed — obsessively private, absurdly fast, and genuinely useful. From encrypted messaging to a support desk, translated meetings, and tracker-free email, every product shares the same principle: your data is yours.
Railgun Messenger
Encrypted chat in private beta.
The native desktop path integrates libsignal when available; browser and development fallbacks use a separately documented encrypted path.
Get the appRailgun Tickets
Press two keys. IT sees what you see.
A support desk where users press ⌘/ to file a ticket with a privacy-safe visual snapshot and diagnostics already attached.
Open support.railgun.chatRailgun Meet
Meetings without the language barrier.
Video meetings with live translated captions. Translation latency and accuracy depend on browser, network, and provider conditions.
- Live translated captions
- Available on npm
Railgun Mail
Email that refuses to be tracked.
Private email at @railgun.chat. Railgun strips inbound tracking pixels and tells you it did — while you stay in control of read receipts.
Explore MailRailgun Privacy
Erase yourself from the data brokers.
Automated removal of your personal data from people-search sites and brokers, with ongoing re-scan and takedown.
Learn moreRailgun Marketing
AI outbound that cites its sources.
Agentic prospecting: research, evidence, a fact-checked proposal draft, and your approval before anything sends. Built for our own sales team first.
See how it worksRailgun Private
The private community platform. Coming soon.
The long-term destination: a private community product with communities, DMs, calls, and explicitly documented client-specific encryption boundaries.
- X3DH + Double Ratchet (planned)
- Sealed boxes today
- Curve25519
- XSalsa20-Poly1305
We build what we think is cool.
Railgun isn't a roadmap dictated by a board. Every product here exists because we personally wanted it to — because it was interesting to build, or because someone we care about ran into a problem no one had bothered to fix well. Privacy is the constant; the products are whatever we think is genuinely worth making.
Why Railgun Meet translates in real time
Stella is learning English. In one meeting she sat quietly, trying to keep up with a conversation moving faster than any subtitle tool could follow — the lag turned a normal discussion into an exhausting guessing game. Existing tools were either too slow to be usable or shipped every word to a server that had no business hearing it.
So we built Railgun Meet: video calls over encrypted transport (not end-to-end) with near-zero-latency live translation, so everyone speaks their own language and still keeps up in real time. It exists because a person we love was struggling — and that turned out to be a far better reason to build something than a market analysis ever was.
Ship the useful part first
We'd rather put a genuinely helpful tool in your hands today than promise a perfect everything-platform someday. Meet, Tickets, Mail, and Privacy are usable now or nearly so — the ultra-private community platform is coming, and we'll say exactly where it stands the whole way.
Honest about status
Every product carries a real label — Available, Private Beta, Building, or Coming soon. No vaporware dressed up as shipping. If something isn't done, we tell you it isn't done, and we tell you what it's built on.
Download Railgun
Get Railgun for your platform and start messaging with true privacy. Your keys never leave your device.
Desktop Apps
Mobile Apps
iOS
iPhone & iPad
Android
Android phones & tablets
Automatic Updates
Railgun automatically checks for updates and installs them securely. All updates are cryptographically signed to ensure authenticity.
Verify Your Download (Advanced)
1. Download the checksums file:
SHA256SUMS.txt2. Verify the checksum:
# macOS/Linux
sha256sum -c SHA256SUMS.txt --ignore-missing
# Windows PowerShell
Get-FileHash Rail-Gun-*.exe | Format-ListSecurity capabilities, precisely stated
Railgun is in private beta. These statements describe current code paths without claiming an audit or guarantees the product has not earned.
libsignal identity keys
The desktop build loads the official libsignal client in the main process to generate the device identity key and prekey bundle. Session establishment and ratcheting are not implemented yet.
Sealed boxes do the encrypting
libsodium sealed boxes are the only direct-message encryption that runs today, and they run when the native libsignal module is absent. They give no Double Ratchet forward secrecy, and the Electron IPC handler does not use them yet.
Local key protection
Desktop key material is protected locally with XChaCha20-Poly1305 before storage.
Encrypted relay envelopes
The relay handles encrypted envelopes. Offline delivery may temporarily queue ciphertext with a retention limit.
Local message history
Client history is designed to remain on user devices; server-side delivery queues are separate and temporary.
Reviewable implementation
The implementation can be inspected in the repository. Railgun does not represent that as an independent security audit.
What exists today
Concrete capabilities from the current codebase, separated from capacity targets and future architecture.
Authenticated relay API
The current backend includes authenticated REST and WebSocket relay paths. Production capacity has not been independently benchmarked.
Encrypted offline queueing
Offline delivery can temporarily retain encrypted envelopes. Railgun does not claim that servers store no ciphertext.
Stripe billing plumbing
Checkout and signed webhook handlers exist for specific products. Availability still depends on production prices, secrets, and webhook configuration.
Beta security posture
Security work is ongoing. No independent audit, production load result, uptime SLA, or multi-region guarantee is claimed here.
What the beta currently claims
Security depends on the client and code path in use. The statements below are intentionally narrower than a blanket “Signal-grade” claim.
- Access and refresh tokens are explicitly typed at API boundaries.
- Native desktop crypto uses libsignal when its native integration is available.
- The browser/development fallback is labeled separately and does not claim forward secrecy.
- Private keys are intended to remain client-side; public pre-key bundles are server-visible.
- Encrypted envelopes may be retained temporarily for offline delivery.
- No phone number is required for account registration.
Private-beta limitations
Railgun has not completed an independent cryptographic or infrastructure audit. Repository visibility is not a substitute for one.
Published download signatures and a production signing key are not represented as available until the release pipeline produces them.
Do not rely on the beta for high-risk communications without your own review, current threat modeling, and verification of the exact client build.
Available Everywhere
Download Railgun for your platform or use the web version.
macOS
macOS, Windows, Linux
DownloadWeb App
Web App
Coming SooniOS & Android
iOS, Android
Coming SoonTell us what you want built.
We take on a small number of client projects — the same people who built Meet, Mail and the Railgun messenger. If it's interesting, we're interested.