Who is Webhook Tester for?

Webhook Tester is a consumer product built for developers and QA testers.

Is Webhook Tester free?

Yes — Webhook Tester is free to use.

What platforms does Webhook Tester run on?

Webhook Tester runs on the web and embeddable surfaces.

Is Webhook Tester still active?

Unverified. Webhook Tester has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

Who makes Webhook Tester?

Webhook Tester is developed by Quinn Hall.

How long has Webhook Tester been around?

Webhook Tester first shipped in 2026.

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Webhook Tester

Name: Webhook Tester
Author: Quinn Hall

mozilla.orgBrowser DevTools & extensions

Webhook Tester is a Firefox browser extension that sends test payloads to webhook URLs. It is intended for developers and testers validating webhook integrations and endpoint behavior.

FreeWebEmbeddable

Visit mozilla.org

Overview

5 features

Webhook Tester sits in PulseGate's Browser DevTools & extensions category. It focuses on testing webhook endpoints without manually constructing and sending request payloads. Webhook Tester is a consumer product aimed at developers and QA testers. Webhook Tester costs nothing to use. It runs on the web and embeddable surfaces.

Behind Webhook Tester is Quinn Hall, and it first shipped in 2026. Among its 5 catalogued features are payload sending, Webhook URL testing, and firefox integration. The interface is available in 32 languages, including Czech, German, and Greek.

Summary written by a language model from the project’s public pages.

Payload sending
Webhook URL testing
Firefox integration
No data collection
Lightweight extension

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed10 Sept · 00:59 UTC
Webhook Tester verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Webhook Tester

What does Webhook Tester do?: Webhook Tester focuses on testing webhook endpoints without manually constructing and sending request payloads. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Webhook Tester for?: Webhook Tester is a consumer product built for developers and QA testers.
Is Webhook Tester free?: Yes — Webhook Tester is free to use.
What platforms does Webhook Tester run on?: Webhook Tester runs on the web and embeddable surfaces.
Is Webhook Tester still active?: Unverified. Webhook Tester has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
Who makes Webhook Tester?: Webhook Tester is developed by Quinn Hall.
How long has Webhook Tester been around?: Webhook Tester first shipped in 2026.
What languages does Webhook Tester support?: The interface is available in 32 languages, including Czech, German, and Greek.

At a glance

Pricing: Free
Platforms: Web
First seen: 10 Sept 2026
Built for: developers and QA testers
Model: B2C
Solves: Testing webhook endpoints without manually constructing and sending request payloads.

Registered as

Firefox Add-ons: webhook-tester

Developer

Quinn Hall

Index record

Indexed: 10 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 10 Sept 2026

Identity audit (13)

Slug: webhook-tester-mozilla-org
Lifecycle state recorded: 10 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 10 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 10 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/webhook-tester

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