Install the CLI
Download the Expona client for your platform and sign in once.
ExponaSecure local-to-public tunnellingExpose Local. Test Globally. Build Faster.
Expona is a developer-focused tunnelling platform — a secure bridge between local development and the public web. Give any local app, API, or webhook endpoint an instant public HTTPS URL.
The Problem Expona Solves
Half of modern development involves something outside your machine reaching in: a payment provider firing a webhook, a client wanting to see today’s build, a mobile app that needs to hit your local API. The usual workarounds are all bad — deploying to staging for every change is slow, port forwarding is a security hole, and "works on my machine" is not a test.
Expona closes that gap with one command. Your local port gets a secure public HTTPS address, requests are logged so you can see exactly what arrived, and custom subdomains keep the URL stable across restarts so registered webhooks keep working.
Everything You Need to Test Against the Real World
Instant HTTPS tunnels
One command gives your local port a secure public URL with TLS handled automatically.
Webhook & API testing
Point payment providers, chat platforms, and third-party APIs straight at your dev machine.
Request inspection
See headers, payloads, and response codes for every request that crosses the tunnel.
Custom subdomains
Keep a stable, memorable URL across sessions instead of a random string each restart.
Authentication & access control
Protect tunnels with credentials so only the people you invite can reach your work.
Developer-friendly CLI
A fast, scriptable command-line client that fits naturally into existing workflows.
Environment sharing
Demo work-in-progress to clients and teammates without deploying anything.
Team collaboration
Shared tunnels, consistent naming, and access management for whole teams.
The tour
How Expona Works, Step by Step
Scroll through the four steps — the screen alongside builds itself up as you go.
Start a tunnel
Run one command against the local port your app is serving.
Share the URL
Register it as a webhook endpoint, send it to a teammate, or open it on any device.
Inspect & iterate
Watch requests arrive in the inspector, fix, replay, and keep building.
Expona
Who Uses Expona
Expona fits anywhere local code needs to meet the public internet:
- Backend developers testing webhooks locally
- Frontend developers demoing work to clients
- Mobile developers pointing apps at local APIs
- QA engineers reproducing issues against dev builds
- Agencies sharing staging previews
- Teams integrating payment and messaging platforms
Because the client makes an outbound connection, Expona works behind NATs, corporate firewalls and office networks with no router configuration at all.
At a glance
Expose local. Test globally. Build faster.
- Instant secure public HTTPS URLs
- Webhook and API testing
- Request inspection
- Custom subdomains
Frequently Asked Questions
Expona covers the same core job — secure local-to-public tunnelling — with a focus on simple pricing, a clean request inspector, stable custom subdomains, and team workflows. If you’ve used ngrok, you’ll be productive with Expona in minutes.
Yes. Tunnels use HTTPS with end-to-end encryption, and you can add authentication so only authorized users reach your local app. Nothing is exposed except the port you explicitly tunnel.
No. The Expona client makes an outbound connection from your machine, so tunnels work behind NATs, firewalls, and office networks without any port forwarding.
Yes — custom subdomains give you a stable address like yourname.expona.app, so registered webhooks and shared links keep working across restarts.
Yes. You can open tunnels free for everyday development; paid plans add custom subdomains, higher limits, access controls, and team features.
Related Zeoat products
Ready to stop deploying just to test?
Open your first tunnel free with Expona, or talk to Zeoat about developer tooling for your team.