What is formseal-embed and how does it encrypt forms?

formseal-embed is a lightweight npm package for client-side encryption of contact forms. Drop the script, add a public key, and it encrypts submissions in-browser before POSTing ciphertext to any endpoint.

How to set up formseal-embed without Cloudflare?

npm i @formseal/embed, run fse init for config/keys, embed script with your pubkey, point to your POST URL. Backend decrypts with private key. Vendor-free.

Does formseal-embed work with any backend?

Yes—any service accepting POST requests. No platform ties. Handles JSON ciphertext; you decrypt server-side.

🛠️ Developer Tools

One Dev's Breakup with Cloudflare: Building formseal-embed from Scratch

formseal-embed just dropped, and it's a middle finger to vendor lock-in. One dev rewrote his encrypted form tool to escape Cloudflare's grip—now it works with any POST endpoint, no questions asked.

theAIcatchup Apr 11, 2026 4 min read

Terminal running fse init command for formseal-embed setup, no Cloudflare dependencies

⚡ Key Takeaways

formseal-embed escapes Cloudflare lock-in with true vendor-agnostic design for any POST endpoint. 𝕏
Minimalism rules: embed touches only encryption and posting; you own HTML and validation. 𝕏
Upcoming fse doctor CLI promises zero-guess debugging for configs, keys, and endpoints. 𝕏

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theAIcatchup

Community-driven. Code-first.

#Cloudflare alternatives #encrypted forms #formseal-embed #vendor lock-in

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Originally reported by Dev.to

⚡ Key Takeaways

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