
Formspree.io
Formspark
Letterbird
ForgeForms
Letterbox
FormSubmit
Doc It Easy
Handle form submissions on any static site in 3 steps — no server required. AI generated Forms in our Pro plan!

Decode and verify SSL/TLS certificates online. Extract X.509 details including issuer, validity, SAN, and fingerprint. Fast, secure, and browser-based.
Which is more popular?
Based on our record, Cert Decoder seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | submitrax.com | certdecoder.com |
| Pricing | ||
| Platforms | ||
| Company | Startup from Germany · 1 - 9 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


SubmitraX is a form backend service for developers building static and serverless sites. Instead of writing Lambda functions or configuring email APIs, you point your HTML form's action attribute at a SubmitraX endpoint and submissions are delivered to your email, Slack, Discord, or webhooks...
Cert Decoder is a free online tool that helps you decode X.509 SSL/TLS certificates in PEM format. It instantly shows important information like the issuer, expiry date, SAN entries, and fingerprint. All data is processed locally in your browser, so nothing is ever sent or stored elsewhere.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing SubmitraX and Cert Decoder.
SubmitraX's answer
SubmitraX was built by a developer who kept solving the same problem on different projects.
Every static site eventually needs a contact form. And every time, the answer was the same: write a serverless function, configure an email service, handle CORS, deploy it, maintain it. For something that should take five minutes.
After doing this for the third time across different client projects, it became clear the pattern deserved its own tool. SubmitraX started as an internal utility and became a product when other developers kept asking to use it.
The goal has always been the same: get out of your way. You build the site. SubmitraX handles the forms.
Cert Decoder's answer:
I built certdecoder.com over the weekend for my own needs. Sometimes in my work, I need to verify and check certificate details.
SubmitraX's answer
s.submitrax.comCert Decoder's answer:
certdecoder.com was built using just JavaScript and HTML—simple, fast, and with all processing happening locally in your browser, so no certificate data is sent to any server
SubmitraX's answer
Developers building static sites, JAMstack apps, and serverless architectures who need form handling without backend infrastructure.
More specifically:
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
SubmitraX's answer
Three reasons:
1. It works with any host. Unlike Netlify Forms (locked to Netlify) or Vercel's form solutions (locked to Vercel), SubmitraX works wherever your site lives — GitHub Pages, Cloudflare Pages, a bare VPS, or any static host.
2. The setup is genuinely 3 steps. Set your form's action attribute to your endpoint URL, make sure inputs have name attributes, add a submit button. No SDK, no API keys, no configuration files. Competitors often require JavaScript SDKs or account-level API tokens.
3. It's built for automation. The n8n node make SubmitraX the only form backend designed to plug into modern workflow tools out of the box — not as an afterthought.
Cert Decoder's answer:
Simple, fast, and reliable. Some similar tools can’t even decode basic certificates. I rigorously tested my tool with many real-world certificates and covered several edge cases where competitors fall short.
SubmitraX's answer
Currently used by independent developers and freelancers across Europe and North America.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
SubmitraX's answer
SubmitraX is the only form backend that combines a zero-config REST endpoint with AI-generated form templates and a native n8n community node — all in one tool.
Most form backends stop at "we receive your submission and email it to you." SubmitraX goes further:
n8n-nodes-submitrax): pipe submissions directly into any workflow — HubSpot, Notion, Slack, Google Sheets, 400+ integrationsShare your experience with using SubmitraX and Cert Decoder. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking SubmitraX since Feb 2026.
Why? Because I built certdecoder.com and couldn’t find a decent place to submit it. So I said screw it — I’ll build my own. With blackjack and hookers. - Source: dev.to / over 1 year ago
When comparing SubmitraX and Cert Decoder, you can also consider the following products.

Just send your form to our URL and we'll forward it to your email.
Compare Formspree.io to SubmitraX or Cert Decoder:


A free contact form on the web that’s good enough
Compare Letterbird to SubmitraX or Cert Decoder:

Build and deploy personalized Forms in seconds
Compare ForgeForms to SubmitraX or Cert Decoder:

9 letters, 60 seconds, ∞ words. Play real-time with friends
Compare Letterbox to SubmitraX or Cert Decoder:

Connect your form to our form endpoint and we’ll email you the submissions. No PHP, Javascript or any backend code required.
Compare FormSubmit to SubmitraX or Cert Decoder: