
reCAPTCHA
hCaptcha
Private Captcha
Cloudflare Turnstile
mosparo
GeeTest CAPTCHA
ALTCHA
Lightweight, modern open-source CAPTCHA alternative designed using SHA-256 proof-of-work.

FriendlyData
Infer SQL queries from plain-text questions and table headers.

Which is more popular?
Based on our record, mlsql seems to be more popular. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | capjs.js.org | github.com |
| Pricing | — | |
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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.


Share your experience with using Cap Captcha and mlsql. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking Cap Captcha since Apr 2025.
I am working on a project that requires me to take user input (as English) and return SQL queries. We will eventually be working with multiple datasets, which is why the valuenet over at https://github.com/paulfitz/mlsql ended up being... Source: over 4 years ago
I found this great resource here: https://github.com/paulfitz/mlsql. Source: almost 5 years ago
When comparing Cap Captcha and mlsql, you can also consider the following products.

reCAPTCHA is a free security service that protects your websites from spam and abuse.
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Do you use a captcha to keep out bots? hCaptcha is a drop-in replacement for reCAPTCHA that earns website owners money and helps companies get their data labeled.
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Independent, privacy-first, self-hostable CAPTCHA service made in EU
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Cloudflare's service for any company to replace CAPTCHAs and deliver a better experience to web visitors.
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