Trusted by developers worldwide

Take Your Users to the Next Level

Focus on building your next big thing. Let Zailky handle your authentication, payments, and memberships. Save time and money — scale to millions.

0% of hacks via passwords
0% higher conversion rates
0% fewer support inquiries

Works with every platform

WordPress Webflow React Node.js Vue Angular Next.js REST API

We Are Changing the Way
People Use the Web

Bring security, convenience, and control to your users. They will never have to remember another password again, or manage multiple subscriptions and memberships.

Minutes, Not Months

Deploy production-grade authentication and payment infrastructure in minutes. We build the hard parts so you don't have to.

Security First

Private key cryptography stored on-device eliminates remote hacking. No passwords means no phishing, no breach exposure.

User-First Design

Biometric login delights users. Eliminate friction, reduce drop-offs, and build lasting trust with seamless, passwordless onboarding.

Scale to Millions

Enterprise-grade infrastructure handles millions of authentications and transactions without you managing a single server.

Everything Your Platform Needs,
Already Built

From biometric passwordless authentication to a global membership system and one-click payments — Zailky provides the full stack of user infrastructure.

June 2026

OnzTrack AI

AI-powered subscription tracker that scans your emails to detect existing or duplicate subscriptions — so you never pay twice for the same thing.

Coming Soon

OnzMember

Memberships, loyalty cards, gift cards, rewards, promo codes, subscriptions, donations, cashback — all in one unified member platform.

Coming Soon

OnzPay

One-click checkout and payment with biometric confirmation. Maximum convenience with maximum security. No card details to steal.

Coming Soon

OnzChat

Integrated customer support & live chat with identity-verified sessions — no more anonymous support tickets.

Coming Soon

OnzBooking

Seamless appointment and event bookings tied directly to user identity and payment profile. Reduce no-shows, increase revenue.

AI-Powered 🗓 Releasing June 2026

OnzTrack — Never Overpay for Subscriptions Again

OnzTrack uses AI to scan your inbox and surface every subscription you're paying for — including hidden, forgotten, or duplicate ones. Get a full financial picture of your recurring costs in seconds.

Email Inbox Scanning

Connects securely to your email and identifies subscription confirmation and renewal receipts automatically using AI pattern recognition.

Duplicate Detection

Flags overlapping or duplicate services — e.g. two cloud storage plans, multiple streaming subscriptions — and recommends which to cancel.

Spend Dashboard

Get a real-time dashboard of all your recurring charges, grouped by category — with monthly and annual cost projections at a glance.

Smart Alerts

Proactive renewal reminders before charges hit. Never be surprised by an annual auto-renewal again — cancel or keep with one tap.

Join the June 2026 Waitlist

Free tier available at launch • No credit card required

Global User Portal — Coming Soon

One Portal. Every App. Zero Friction.

Users will never have to create a new account again. A single portal controls access to all their profile, login, payments, subscriptions, memberships, rewards, and support across every Zailky-powered product.

A Different Approach
to Security

Data breaches increase year after year. According to the 2021 Data Breach Investigation Report, more than 81% of hacks happen because of passwords.

Eliminating passwords and authenticating users based on a private key stored in their device brings us one step closer to solving cyberthreats — passwordless protection prevents hackers from accessing user accounts remotely.

Zailky advocates strongly for passwordless authentication as the definitive solution to the growing cybersecurity crisis.

See How It Works →
81%
of breaches
via passwords
DBIR 2021
54%
e-commerce
conversion increase
CIO Report
2.6×
faster
sign-in time
Yahoo! Japan
25%
fewer support
inquiries
Yahoo! Japan
Authentication Passwordless Bookings Payments Membership Loyalty Rewards Subscriptions Chat Support Biometrics WebAuthn FIDO2 AI Subscription Tracking OnzTrack

Why Smart Teams Choose Zailky

Bank-Grade Security

Private key cryptography stored on-device. Zero passwords to steal, leak, or guess. Meet SOC2 and GDPR security standards out of the box.

Save Dev Time & Cost

Add authentication in minutes — not months. No need to build or maintain your own auth team. Slash support costs from password resets by up to 40%.

Drive Conversion

Biometric authentication removes sign-up friction. Users convert faster when they can register with a fingerprint. Industry studies show up to 54% more conversions.

Better UX by Default

Your users get beautiful, native biometric prompts — no more "Forgot password?" flows. Improve retention and daily active user engagement.

Universal Platform Support

Drop-in plugins for WordPress, Webflow, and SDKs for React, Vue, Angular, Node.js. Or use our REST API for any backend. Works anywhere.

Integrate the Full Suite

Combine OnzAuth with the upcoming OnzPay, OnzMember, and OnzChat for a complete unified user infrastructure — one relationship, one portal, one platform.

Loved by Developers & Businesses

★★★★★

"Passwordless authentication reduced our support inquiries by 25% and sped up sign-in time by 2.6x. The impact on user satisfaction has been remarkable."

Yahoo! Japan Case Study Enterprise Implementation
★★★★★

"Ditching passwords increased our e-commerce conversion rates by 54 percent. Reducing friction at login is the single highest-ROI change we made all year."

Andre Bourque CIO.com — E-commerce Study
Referenced in
CIO.com DBIR 2021 Yahoo! Japan DealFuel FIDO Alliance

Be First to the Future.
Get Early Access.

Sign up to receive Zailky news and product updates. Be the first to know when OnzTrack, OnzMember, OnzPay, and the Global User Portal launch.