FormSentry

What it does

FormSentry blocks contact form spam invisibly. No CAPTCHAs, no code changes, no customer friction. Spam on your contact form wastes time, triggers unwanted email flows, and buries real customer messages. FormSentry checks every submission using behavioral signals, email reputation, and content analysis; then blocks the junk and lets real messages through. Works with contact forms and popular form builders. Under a minute to set up.

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  FormSanitizer2025 · ▲160

  Stop spammy form submissions with custom filters.

• MS
  Make senders work to get into your inboxJul 2026 · captchainbox.com · ▲44

  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…

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  FormStory io2024 · ▲446

  Recover every lead, even when tech fails

• 
  Video Contact Forms by Typeform2019 · ▲389

  Get 10x more personal with your site's visitors from Day 1

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  MUTEApr 2026 · mute-it.com · ▲3

  Block contact form spam. No CAPTCHA, one line of code.

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  Send2M2023 · ▲145

  Simple forms, instantly embed anywhere

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  PaymentKit▲466

  Billing that survives a processor shutdown

  Commerce · 13d ago · paymentkit.com

• 
  Equitybee Benchmark▲241

  Compare your startup equity grant for free.

  Commerce · 26d ago · equitybee.com

• 
  Brila▲1,367

  One-page websites from real Google Maps reviews

  AI · Apr 2026 · brila.ai

• AG
  A game where you build a GPU▲964

  Thought the resources for GPU arch were lacking, so here we are

  Life & fun · Apr 2026 · jaso1024.com

• IB
  I built a tiny LLM to demystify how language models work▲915

  Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food. Fork it and swap the personality for your own character.

  AI · Apr 2026 · github.com

• 
  Fathom 3.0▲803

  AI meeting notes: now bot-free, in ChatGPT & Claude + more

  AI · Apr 2026 · fathom.ai

• BC
  Brutalist Concrete Laptop Stand (2024)▲786

  Life & fun · Apr 2026 · sam-burns.com

• IB
  I built a frontpage for personal blogs▲783

  With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.

  AI · Apr 2026 · text.blogosphere.app