Side by side
Kiosk vs WebhookX
Both stand on webhook management software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Open source AndroidExtensioniPhone+5
Choose Kiosk if you want a free, open-source PDF reader with search, multiple display modes, and extension-based annotation tools. It also offers offline use and a self-hosted web option. Consider the Android alpha status, unsupported Firefox and Safari extension use, and macOS launch warning when choosing a platform.
Visit Kiosk Free plan Open source APILinuxMac+3
WebhookX offers self-hosted webhook routing, delivery retries, transformation, and observability for engineering teams. The free Community plan is available; the listed Team plan is marked “Coming soon.”
Visit WebhookXThe facts
| Kiosk | WebhookX | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Yes | Yes |
| Runs on | Android, Extension, iPhone, Linux, Mac, Self-hosted, Web, Windows | API, Linux, Mac, Self-hosted, Web, Windows |
| Lowest paid plan | Free or on request | Team: $39 a month |
| Plans published | 2 | 3 |
| Maker | Not published | Not published |
| Website | github.com | webhookx.io |
| On webhook management software | #1 of 29 | #3 of 29 |
Kiosk: what it does well
- Free and open source under the MIT License.
- Search, highlighted results, thumbnails, smooth zoom, and three display modes.
- Chrome extension includes text and drawing annotation tools.
- Project says PDFs stay on-device, without telemetry or cloud processing.
- Android and extension releases support offline use.
What to know first
- Android release is an early alpha.
- Firefox and Safari are not supported by the extension.
- macOS app is not notarized and may trigger a Gatekeeper warning.
WebhookX: what it does well
- Retries failed deliveries at configurable delays.
- Supports payload transformations and inbound and outbound plugins.
- Provides request visibility and OpenTelemetry metrics and tracing.
- Can scale across instances or use separate control and data planes.
- Apache 2.0 licensed and available as a free Community plan.
What to know first
- Docker Compose quick start is not for production deployment.
- Team plan is marked “Coming soon.”
- Enterprise pricing is custom and not stated.
- Team plan does not include SSO and SAML.
Alternatives to Kiosk Alternatives to WebhookX The whole list