Dev tools · alternatives · 2026
24 alternatives to Knock
Notification infrastructure for developers
Knock is a notification infrastructure platform that provides developers with an API and dashboard to manage product notifications. It handles the backend work of building and scaling notifications, allowing teams to… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Knock launched in 2022; newer entries below may have overtaken it.
- 1KN
Hey HN! I’m Chris – one of the co-founders at Knock (https://knock.app). Knock is notifications infrastructure for developers. We provide a set of flexible API primitives you can use to power complex notification systems, without having to roll your own notifications infrastructure in-house. In short: we built notifications so you don’t have to. We learned about scaling notifications systems the hard way. Previously, my co-founder and I worked together at Frame.io, where we saw the upside of product notifications as well as the pain involved in building and maintaining them. With…
2022 · its alternatives →
- 2
Knock CLI▲104Bring your notification infrastructure to your fingertips
2023 · knock.app · its alternatives →
- 3
Build, manage, and ship customer messaging from Slack
Jun 2026 · knock.app · its alternatives →
- 4
SuprSend▲406We as developers, build and maintain many services in code, one of them being notification service. In the last 5-7 years, API-to-user communications have exploded across SMS, email, chat apps, mobile, and web push. As a consequence, notification service handling them has become quite complex. Developers spend time building integrations with multiple providers, create templates for each channel, managing scheduling and routing based on preferences, maintaining queues to deliver notifications on time while managing scale. Besides, product teams have poor visibility on notifications as…
2022 · suprsend.com · its alternatives →
- 5
Trigger event-based messaging from Stripe, Clerk, Supabase
Apr 2026 · knock.app · its alternatives →
- 6
Knock-Knock.net is a live honeypot dashboard showing real-time bot attacks by protocol, source country, ISP, username, password, and IP across SSH, Telnet, FTP, RDP, SMB, SIP, HTTP, and SMTP services.
Feb 2026 · knock-knock.net · its alternatives →
- 7
Slack▲2,714Be less busy. Real-time messaging, archiving & search.
2013 · slack.com · its alternatives →
- 8
- 9
Hey HN, I'm Chris, CTO of Knock (https://knock.app). We built email.info because every developer we talk to asks the same question: which email provider should I use? The existing resources are mostly vibes — "Best of" listicles, anonymous Reddit threads, or LLM answers trained on that same content. Objective performance data is always missing. Knock is a notification infrastructure platform, so we send billions of API requests to downstream email providers every year. We aggregated that data into a public dashboard covering 10 providers (SendGrid, Postmark, Resend, Mailgun, Amazon…
Mar 2026 · knock.app · its alternatives →
- 10
Notify▲791Get notified in Slack when your startup is mentioned online
2015 · timer.now · its alternatives →
- 11
Build apps on top of Facebook Messenger
2015 · messenger.com · its alternatives →
- 12
Knock▲168Knock-Knock.net is a live honeypot dashboard showing real-time bot attacks by protocol, source country, ISP, username, password, and IP across SSH, Telnet, FTP, RDP, SMB, SIP, HTTP, and SMTP services.
Mar 2026 · tryknock.app · its alternatives →
- 13
Stream Chat▲327Build, code and ship in app messaging in a few hours
2019 · getstream.io · its alternatives →
- 14
Discovery, chat extensions, and richer experiences
2017 · facebook.com · its alternatives →
- 15
Build your bot and reach 900 million people around the world
2016 · developers.facebook.com · its alternatives →
- 16
Talk with your fellow makers directly inside Product Hunt 😺💬
2018 · its alternatives →
- 17
Context.dev▲814Hello, My name is Yahia, I've been working on scraping products for a long time and maintain a couple of free sites in my spare time (E.g. knifegeek.io) What prompted this is i've rebuilt scraping infra at every company I've started and finally just made it a product. Pass a URL, get clean markdown, html, images, sitemap or pass a domain, get logos, colors, socials, industry data. Goal is to offer a better service than VC funded competitors at a fraction of the cost. Stealth is included and automatic at no additional cost (normally an upcharge by alternatives). Would love your honest thoughts.
Jul 2026 · context.dev · its alternatives →
- 18
The best way to stay up to date with all things PH 😽
2018 · messenger.com · its alternatives →
- 19
Facebook's newest product for online businesses 🗣️
2017 · facebook.com · its alternatives →
- 20
Courier▲257API, designer, and metrics for messaging & notifications
2021 · courier.com · its alternatives →
- 21
The <Inbox /> infrastructure for modern products. Novu has 98 repositories available. Follow their code on GitHub.
2023 · github.com · its alternatives →
- 22
Build scalable realtime infrastructure for your apps
2018 · pusher.com · its alternatives →
- 23
- 24
Get a text when your domain is mentioned on Product Hunt
2014 · 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 →