Dev tools · alternatives · 2026
24 alternatives to Relayze
Debug webhooks in real-time with instant observability
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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Hey HN! I’ve written a bunch of WebSocket servers over the years to do simple things like state synchronization, WebRTC signaling, and notifying a client when a backend job was run. I realized that if I had a simple way to create a private, temporary, mini-redis that the client could talk to directly, it would save a lot of time. So we created DriftDB. In addition to the open source server that you can run yourself, we also provide https://jamsocket.live where you can use an instance we host on Cloudflare’s edge (~13ms round trip latency from my home in NY). You may have seen my…
2023 · driftdb.com · its alternatives →
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HookWatch▲112Automated webhook monitoring for indie hackers & small teams
Feb 2026 · hookwatch.dev · its alternatives →
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2013 · webhookinbox.com · its alternatives →
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Webhook Catcher▲105Create instant disposable Webhooks to inspect & respond fast
2025 · webhook.projext.in · its alternatives →
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Webhookify▲123Instant Webhook URLs with AI Powered Notifications
2025 · webhookify.app · its alternatives →
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RelayFox▲4Capture webhooks & replay to localhost — no tunnel needed
Jun 2026 · relayfox.dev · its alternatives →
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HookBox▲120Debugging webhooks and transactional emails can be slow and usually requires multiple tools. I built HookBox to solve this problem, providing instant endpoints, temporary inboxes, real-time capture, and request replay so both can be tested in one place. Would love to hear your feedback! — Egret
2025 · hookbox.app · its alternatives →
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Easy workflow automation for cloud infrastructure
2021 · puppet.com · its alternatives →
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I built a Chrome extension that acts as a WebSocket proxy, allowing real-time monitoring, message simulation, and traffic interception. Think "Proxyman for WebSockets" but integrated into Chrome DevTools. Key features: Real-time WebSocket monitoring and message capture Send custom messages in both directions (client ↔ server) Block incoming/outgoing messages for testing Background monitoring (captures connections even when DevTools is closed) Why: I was debugging a WebSocket chat app and needed better tools than browser DevTools. Existing solutions required external proxies or were too…
2025 · websocket-devtools.com · its alternatives →
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RelayKit▲17Webhook infrastructure with a local dev tunnel built in
Jul 2026 · relaykit.io · its alternatives →
- 15

Hi HN! Last year, I built LocalCan app in which you can develop apps using .local domains and Public URLs. Although it allows for testing webhooks too, I wanted to give back and create a free online tool specifically for that purpose! And so, I've made Webhook.cool Simply use your unique webhook URL to send any webhook to it from services like Shopify, Slack, Mailchimp, Trello, GitHub, PayPal, Discord, and Jira. Give it a try and let me know how if you have any feedback.
2024 · webhook.cool · its alternatives →
- 16

Howdy HN, Ashley here. Most of my projects use realtime, but the jump from 'free' to 'paid' on existing platforms stressed me out, and I didn’t want to self-host soketi or sockudo. So I built Vask, a websocket platform built on top of Cloudflare Workers, Durable Objects, KV storage, and analytics engine, so I can get sort-of infinitely scalable, low latency, and low-cost websockets. I noticed that ‘fan-out’ is pretty cheap with Cloudflare, so Vask can bill per message sent rather than message received (no fan-out cost), which is great for certain workloads, and quite different to existing…
May 2026 · vask.dev · its alternatives →
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Demo your website without deploying
2018 · webhookrelay.com · its alternatives →
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CloudOutage▲26Real-time AWS & GCP service alerts right in Slack.
2018 · cloudforecast.io · its alternatives →
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Know when your webhooks break — before your users do
Mar 2026 · hooks.outworx.io · its alternatives →
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2017 · github.com · its alternatives →
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Easy Webhook Testing on Localhost
2024 · webhooksimulator.com · its alternatives →
- 24

Inspect, replay, and debug webhooks in real time
Mar 2026 · webhookscout.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →