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What is Demo captchas?
Demo captchas is a demonstration site for an AntiCaptcha plugin, showing sample forms that use several common CAPTCHA types. Its purpose is to let you see how each challenge looks and behaves in a browser before you encounter it in production.
What the demos cover
The page lists test forms for:
- Regular image captcha
- reCAPTCHA 2
- hCaptcha
- Math captcha
- Cloudflare Turnstile, in standard, explicit and invisible variants
Because these are demo forms rather than live protected pages, they are useful for checking visual rendering, widget loading and how a solver or plugin interacts with each challenge.
Who it is for
This is most relevant to developers, QA testers and automation engineers evaluating anti-CAPTCHA tooling. A typical scenario: you are integrating a CAPTCHA-solving service and want a safe page to test your request flow without hitting a real third-party site. It is also handy for comparing how different CAPTCHA vendors present challenges.
Trade-offs to keep in mind
Demo forms may not mirror the exact configuration, difficulty or anti-bot checks of a live deployment, so results here are indicative rather than conclusive. If you need to verify a solver under realistic conditions, test against your own staging environment. For background on the individual challenge types, see the official documentation from Cloudflare and hCaptcha.
A practical next step: open the demo form for the CAPTCHA type you plan to support, observe whether the widget loads and solves correctly, then repeat the test in your own application before committing to a provider.
How can I test the AntiCaptcha plugin on the demo forms?
Open the demo forms page at Demo captchas and pick the form that matches the captcha type you actually need to solve. Each form is a live test bed, so you can submit it, watch the plugin respond, and see whether a token or solved value comes back before you wire anything into production.
What each demo form tests
| Form | What it exercises | When it's the right test |
|---|---|---|
| Regular image captcha | Classic distorted-text recognition | Legacy signup or contact forms |
| reCAPTCHA 2 | Checkbox-style challenge solving | Sites still on the older reCAPTCHA widget |
| hCaptcha | Alternative challenge widget | Privacy-oriented sites that dropped Google |
| Math captcha | Arithmetic question solving | Lightweight custom forms |
| Turnstile Cloudflare | Standard widget handling | Cloudflare-protected sites |
| Turnstile Cloudflare Explicit | Explicitly rendered widget | Pages that call the widget manually |
| Turnstile Cloudflare Invisible | No visible checkbox | Flows where the challenge runs silently |
A practical test sequence
- Start with the captcha type you meet most often in your own work. Testing all seven at once tells you little.
- Submit the form once with the plugin active and once without, so you can tell the plugin's effect apart from the site simply being lenient.
- Note the time each attempt takes. Speed matters more than success alone if you're solving at volume.
- Repeat the same form a few times. Captcha difficulty varies between loads, so a single pass proves little.
Reading the results
The Demo captchas page is a controlled environment: no account creation, no rate limits tied to a real service. That makes it good for confirming the plugin is installed and responding, and poor for judging how it behaves against a hostile target that fingerprints your browser or rotates challenge difficulty.
If a form fails, check the obvious causes first — plugin version, API key, browser extension conflicts — before assuming the captcha type is unsupported. If it succeeds, move to one real site of the same captcha type and compare. A pass on the Turnstile Invisible demo, for example, is a reasonable green light to try a Cloudflare-protected page, but expect real sites to be stricter.
Which types of captchas can I try on Demo captchas?
You can try five captcha types on Demo captchas, each shown in a working demo form: a regular image captcha, reCAPTCHA 2, hCaptcha, a math captcha, and Cloudflare Turnstile in three modes (standard, explicit, and invisible).
What each demo covers
| Type | What it tests | Typical audience |
|---|---|---|
| Regular image captcha | Reading distorted characters | Anyone comparing a self-hosted, low-dependency option |
| reCAPTCHA 2 | Google's checkbox and image-challenge flow | Sites already in Google's ecosystem |
| hCaptcha | An independent challenge widget | Privacy-conscious sites avoiding Google |
| Math captcha | Solving a simple arithmetic question | Lightweight forms with low abuse risk |
| Turnstile (standard, explicit, invisible) | Cloudflare's non-interactive or lightly interactive check | Sites behind Cloudflare or wanting minimal user friction |
How to choose
Pick the demo that matches your real constraint rather than the one that looks best. If your visitors are on slow connections or assistive technology, the math captcha is easy to serve but weak against scripted abuse. If you want the least visible friction, try the Turnstile demos, especially the invisible variant, and compare how often a challenge actually appears. If you need broad familiarity, reCAPTCHA 2 and hCaptcha are the two most recognized widgets.
A practical next step: open the demo form for each type on the same device and network you expect your users to have, and note how long each takes to pass. That timing, not the widget's brand, is what your form completion rate depends on. For reference on the vendors themselves, see Cloudflare and hCaptcha.
How do I use Demo captchas to solve a regular image captcha?
Demo captchas is a set of test forms, not a solving service. If you want to practise or study a regular image captcha, open the page and choose the "Regular image captcha demo form" — that is where the classic distorted-text challenge is demonstrated. The page also hosts demo forms for reCAPTCHA 2, hCaptcha, a math captcha, and several Cloudflare Turnstile variants (explicit and invisible), so you can compare how each challenge behaves in one place.
Because these are demo forms, expect them to show the widget and its interaction rather than gate access to a real account. That makes the site useful for three concrete tasks:
- Testing an integration. If you are wiring a captcha library into a form, load the matching demo to see how the widget renders and what data it returns on success.
- Teaching or learning. A trainer can walk a group through the image challenge, then contrast it with the invisible Turnstile variant to show how frictionless verification differs.
- Accessibility checks. Run the image captcha demo with a screen reader or keyboard-only navigation to see where the audio alternative and focus order sit.
A practical next step
Pick the demo form that matches your real target. If your production form uses a classic image captcha, use the regular image demo to observe the refresh button, the audio option, and the submit behaviour. If you are choosing a provider, open the reCAPTCHA 2 and hCaptcha demos side by side and note which one your test users complete faster.
For reference documentation rather than demos, the official vendor pages are the better stop: Google reCAPTCHA and hCaptcha Docs describe keys, scoring and server-side verification that a demo form cannot show you. Cloudflare Turnstile covers the Turnstile variants this page demonstrates.
The trade-off is simple: demos are fast and safe for experimentation, but they do not tell you about quotas, billing or backend validation, so treat them as a first look before reading the provider's own integration guide.
What is the difference between the Turnstile Cloudflare explicit and invisible demo forms?
The explicit form asks the visitor to complete a visible Turnstile challenge before the form can be submitted, while the invisible form runs the check in the background and only shows a challenge if the visitor looks suspicious. Both appear as separate demo forms on Demo captchas, alongside regular image, reCAPTCHA 2, hCaptcha, and math captcha examples.
What changes in practice
- Explicit: A widget or checkbox is visible on the page. The visitor knows a verification step exists and interacts with it. This is the better choice when you want transparency, when your audience expects a visible security check, or when you are testing how the widget renders and behaves.
- Invisible: No widget is shown up front. The check happens when the form is submitted (or on page load, depending on configuration), and a challenge appears only for traffic that fails the risk assessment. This suits signup, login, and checkout flows where you want to minimize friction for legitimate users.
How to choose
Use the explicit form if your priority is predictability and clear user expectations, or if you are debugging widget placement and theming. Use the invisible form if your priority is a clean interface and you accept that some users will still see a challenge. A common approach is to start with the invisible mode and fall back to explicit if you see too many false positives or need a visible signal that verification is happening.
Next step
Open both demo forms side by side on Demo captchas and submit each with normal and suspicious-looking behavior (for example, a fresh browser profile versus automated input). Compare when the challenge appears, how long submission takes, and what the visitor sees. That gives you a concrete basis for deciding which mode fits your own form.
Can I use Demo captchas to test reCAPTCHA 2 and hCaptcha?
Yes. Demo captchas provides separate demo forms for both reCAPTCHA 2 and hCaptcha, along with regular image, math, and several Cloudflare Turnstile variants.
What you can test
- reCAPTCHA 2 — a standalone demo form for the checkbox-style challenge.
- hCaptcha — its own demo form, useful if you want to compare how the two widgets look and behave side by side.
- Other types on the same page — regular image captcha, math captcha, and Turnstile Cloudflare in standard, explicit, and invisible modes.
Practical use
A developer integrating captchas into a signup or comment form can open these demos to see how each widget renders, how much space it takes, and how the verification step feels before committing to one. Someone evaluating accessibility or load behaviour can time each form and observe differences between the checkbox and invisible styles.
Keep in mind what these pages are: demonstration forms, not a full testing environment. They show the widget and the challenge flow, but they don't replicate your own site's validation logic, error handling, or server-side verification. For production planning, pair the visual check with the official documentation from Google and hCaptcha.
Next step
Pick the captcha you're leaning toward, load its demo form, and walk through it once as a first-time visitor. If the friction level suits your audience, then move on to reading the provider's integration docs.
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