Dev tools · alternatives · 2026
24 alternatives to Msgdrop – Test emails, webhooks and 2FA using a simple API
Hey HN crowd, I'll spare the marketing speak and talk straight and honest here which I think most of you will appreciate. I was on a team not too long ago where we needed to test emails from an automated test run. Think of the stuff like magic login links, verification links, etc. Normally when we had such cases then these user journeys were tested manually by our QA engineers and this always bugged me a lot. None of the tools which we found on the internet really convinced us. They were either completely open and wholly insecure or only accessible through a UI and very cumbersome to use.…
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Msgdrop – Test emails, webhooks and 2FA using a simple API launched in 2024; newer entries below may have overtaken it.
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Monkey Test It▲234Automated website testing by clever monkeys 🐵
2016 · monkeytest.it · its alternatives →
- 3MU
Most feedback tools are built like people actually want to report bugs. They don’t. Unless you make it dead-simple, or better yet - a little fun. After shipping a few SaaS products, I noticed a pattern: Bugs? Yes. Bug reports? No. Not because users didn’t care but because reporting bugs is usually a terrible experience. Most tools want users to: * Fill out a long form * Enter their email * Describe a bug they barely understand * Maybe sign in or create an account * Then maybe submit it Let’s be real: no one’s doing that. Especially not someone just trying to use your product. So I built…
2025 · bugdrop.app · its alternatives →
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New to Browserling? Launch real online browsers in seconds for web testing, cybersecurity, and more. Test websites and open URLs safely in isolated browser sandboxes.
2019 · emaildrop.io · its alternatives →
- 5AF
This is a side project of mine. Use this as your SMTP server in a test environment to guarantee that your users don't receive test emails. Looking for feedback, especially on the security side.
2024 · fakemail.stream · its alternatives →
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Mailnest▲100Sandbox Email testing tool for IT product, service companies
2020 · mailnest.io · its alternatives →
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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 →
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MailSnag▲83Automated email testing for dev/staging/QA/CI environments
2018 · mailsnag.com · its alternatives →
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SMTP‑Test.com▲103One‑click SMTP server test with real‑time protocol logs
2025 · smtp-test.com · its alternatives →
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Hey HN, I’m a solopreneur and have been in the SaaS space for the past 3 years. My last 3 startups failed, and a common challenge in all of them was figuring out how to reach my audience. Recently I started with cold outreach (its a struggle, since I dont have much experience with marketing). I am finding leads mainly using exa.ai websets (web vector search, extremelly good for multiple use cases, recommend checking them out) and then sending them through smartlead. I ran the campaign for the past 30 days and 12-15% emails always bounced. This wasted my email credits & chances of reaching…
2025 · verifyemailai.com · its alternatives →
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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 →
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Hi HN :) really excited to share this with you. The one thing AI reliably does is generate noise. Half the tools I see launch are just machines for producing more noise across more channels. And people are starting to see this in the form of emails in their inboxes as spam filters are struggling. There used to be a useful signal in email: the effort a sender put into customizing a message was a rough proxy for how relevant it actually was. AI killed that. Now it's customized slop with the appearance of effort with none of the cost. It is painful that the open internet / open channels…
Jul 2026 · captchainbox.com · its alternatives →
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I built this out of frustration as I lead the development of AI features at Yola.com. Prompt testing should be simple and straightforward. All I wanted was a simple way to test prompts with variables and jinja2 templates across different models, ideally somthing I could open during a call, run few tests, and share results with my team. But every tool I tried hit me with a clunky UI, required login and API keys, or forced a lengthy setup process. And that's not all. Then came the pricing. The last quote I got for one of the tools on the market was $6,000/year for a team of 16 people in a…
2025 · langfa.st · its alternatives →
- 15OA
Hi HN, I host my own mail infrastructure and don't rely on third-party tools to send my mails. But in a microservice architecture, managing all the SMTP configs quickly becomes tiresome. After a while I'd always have my credentials and settings scattered in application-properties, bash scripts and environment files. So I've build Brieferl, an app where you can add your SMTP servers and send emails through a single API with a simple JSON payload. You also get logs of when/where emails were sent and HTML previews of messages. I am interested in what you guys think about this. You can…
2025 · brieferl.com · its alternatives →
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Hi HN! I'm Nick, one of the cofounders of Bitping, and we'd like to share a tool that we've been working on for the past couple of years that lets you test network connectivity from real user devices around the world. We originally were part of a hackathon focused on building a product that is powered by micropayments and we settled on a network that could ping other network devices and users could be paid in fractions of a cent for performing said work. After winning the hackathon, we built an uptime monitoring service and discovered some discrepancies between our data and traditional…
2024 · developer.bitping.com · its alternatives →
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There are plenty of good tools for load testing such as JMeter, Minigun, and plenty more - but they all have their own set of options to learn. I built this one to support a simpler workflow where you just paste your curl request (or other cli command) after your `spam` config (literally just `spam -r 2 -- curl www.google.com). It's pretty barebones but I'm 100% going to use it in my day to day - figured I'd share it here if it helped anyone else!
2023 · github.com · its alternatives →
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Hello HN, around October last year, I started to work on campaignkit.cc as a side project. It is a service to detect invalid and malicious email addresses. You can upload text files, and use the REST API or direct integration to retrieve a detailed report for each email address. End of March I added Stripe Payments and got my first paying customers via SEM. A coworker suggested starting a Show HN thread, so here we are :) I used golang for the backend since I wanted something lightweight with fast compilation times (coming from scala). For the frontend, I'm using Next.js and TailwindUI. On…
2022 · campaignkit.cc · its alternatives →
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BounceStrike▲14AI-powered real-time email verification API, cheaper price
2025 · bouncestrike.com · its alternatives →
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Mock Fill▲13I got tired of typing the same names, emails, and phone numbers again and again while building/testing forms — usually ending up with gibberish. So I built MockFill, a Chrome extension that auto-detects input fields and lets you autofill realistic mock data in one click (single field or entire form). It’s free, works locally, and doesn’t collect any data. Would love feedback from the HN community
2025 · mockfill.com · its alternatives →
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I built Sniffmail because I was tired of fake and disposable emails getting through signup forms on every project I shipped. It verifies email addresses at the SMTP level without sending an email. One API call returns whether the mailbox exists, is disposable, has a full inbox, or is a catch-all domain. Install with npm install sniffmail, call validateEmail("[email protected]"), get a verdict. REST API available for non-Node stacks. What it checks: SMTP mailbox existence (connects to the mail server, confirms the address is real), disposable/temporary email detection (Mailinator, 10…
Mar 2026 · sniffmail.io · its alternatives →
- 24
Hey folks, I am finally posting a Show HN post for a project I have been working on for several months now, and it's in a state where I already get a lot of value myself, so I am happy to share broadly. The pitch line is: "Skybear.NET is a managed platform automating Synthetic HTTP API testing." At the moment, the main source file format supported for your API tests are Hurl.dev files [1]. Hurl is a CLI tool wrapping `curl` and it's really awesome. At least check that out :) I am not affiliated directly with the Hurl CLI tool, and the platform I am building provides full Hurl compatibility.…
2024 · skybear.net · 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 →