6 Best Captcha Solving Services for Website Automation

6 Best Captcha Solving Services for Website Automation

by admin

Website automation usually breaks in fairly ordinary ways. A session expires. A request has to be sent again. A proxy changes at the wrong moment. Or a captcha appears halfway through a browser flow that was expected to run on its own.

For developers working with browser-based QA, form testing, monitoring, or authorized data collection, captchas are mostly an interruption problem. The solver is only useful if it gets the workflow moving again.

That makes response time a poor metric on its own.

A one-second answer looks impressive until the site rejects it. Then the browser has to retry the challenge, repeat a request, use more proxy traffic, or restart part of the session.

We compared six services:

  • 2Captcha;
  • SolveCaptcha;
  • Anti-Captcha;
  • CapMonster Cloud;
  • CapSolver;
  • DeathByCaptcha.

The numbers come from monthly data in the CaptchaTheCat best captcha solving services benchmark. The comparison covers correctness, returned results, response time, several common captcha types, and the integration options available to developers.

There is no service that comes out on top everywhere.

Quick comparison

Service Best use Main advantage Main drawback GitHub
2Captcha Mixed website automation Broad coverage and mature integrations Not the fastest in every test GitHub
SolveCaptcha AI-focused workflows Strong results on complex challenges Smaller integration ecosystem GitHub
Anti-Captcha Turnstile and image captcha Highest accuracy in two categories Weak reCAPTCHA v2 results
CapMonster Cloud Speed-sensitive automation Fast in several important tests Uneven performance
CapSolver Low-latency workflows Very fast responses Weak Amazon and image captcha results
DeathByCaptcha Alternative provider Established service Limited detailed benchmark data

Accuracy and speed tell different stories

Amazon captcha is a good place to start.

CapSolver returned an answer for every submitted task and averaged 4.25 seconds. On latency alone, it looks like the obvious winner.

Correctness was 44%.

2Captcha and SolveCaptcha both reached 98%, although their average response time was 33 seconds.

That gap changes the practical meaning of the speed result. If most failed answers require another captcha request or another browser interaction, the surrounding automation absorbs the cost.

reCAPTCHA v3 is much less clear-cut:

  • 2Captcha — 97% correctness, 19 seconds;
  • CapMonster Cloud — 96%, 4.26 seconds;
  • CapSolver — 95%, 5.84 seconds.

Here, losing one or two percentage points buys a much shorter response time. For a high-volume workflow, that trade may be worthwhile.

So there is no useful rule that says accuracy always matters more than speed. The important question is how much accuracy is being traded away.

The captcha type changes the answer too. The same provider can look excellent in one category and ordinary — or poor — in another.

1. 2Captcha: the strongest all-round result

2Captcha finishes first overall, largely because it stays competitive across the wider set of tests.

Its clearest wins are on reCAPTCHA.

For reCAPTCHA v2, it reached 99% correctness on hard, moderate, and easy challenges. It also led reCAPTCHA v3 at 97%.

Amazon captcha ended in a tie with SolveCaptcha:

  • 98% correctness;
  • 99% received;
  • 33-second average response time.

There are several categories where 2Captcha is not first. Anti-Captcha performs better on Turnstile and image captcha. SolveCaptcha leads Arkose/FunCaptcha and Cloudflare Challenge.

The difference is breadth. A mixed automation project may encounter several challenge types, and 2Captcha has fewer obvious weak spots across the available data.

The integration side is also mature. The 2Captcha API documentation covers task creation, result retrieval, supported captcha types, and common integration patterns. The public GitHub organization provides SDKs and examples for several popular languages.

For a project that needs one provider rather than a separate solver for each challenge type, that matters.

Pros: strong reCAPTCHA results, broad captcha coverage, mature API and SDK support, and consistent performance across different categories.

Cons: several competitors are much faster, and 2Captcha does not lead every captcha type.

2. SolveCaptcha: very close overall, with a few important wins

The overall averages put SolveCaptcha almost level with 2Captcha.

Service Avg. correctness Avg. received Avg. time
2Captcha 92.62% 97.25% 27.75 sec
SolveCaptcha 92.50% 97.62% 27.16 sec

There is little separating them here. SolveCaptcha gives up 0.12 percentage points in average correctness, while returning slightly more results and finishing a little faster.

The more interesting differences show up in individual challenge types.

On Arkose/FunCaptcha, SolveCaptcha reached 93% correctness against 92% for 2Captcha. It also returned more results and finished five seconds faster.

Cloudflare Challenge produced another clear lead: 97% correctness versus 95%, with both services returning results for every task in 14 seconds.

The SolveCaptcha API covers the main integration flow, and its GitHub organization contains public SDKs and examples for several languages.

For a workload that sees a lot of Arkose/FunCaptcha or Cloudflare Challenge, those category-level results are more relevant than the tiny difference in overall averages.

Pros: close overall performance, leading Arkose/FunCaptcha and Cloudflare Challenge results, and slightly lower average response time.

Cons: marginally lower average correctness and a smaller integration ecosystem.

3. Anti-Captcha: excellent in some categories, poor in others

Anti-Captcha is the hardest service here to summarize with a single label.

On Cloudflare Turnstile, it has the strongest result in the dataset:

  • 99% correctness;
  • 100% received;
  • 29-second average response time.

It also leads image captcha at 71%. SolveCaptcha follows at 63%, with 2Captcha at 61%.

Then reCAPTCHA v2 changes the picture entirely. Anti-Captcha scored between 45% and 47% across hard, moderate, and easy tests.

That makes it much easier to recommend for specific captcha types than as a general-purpose first choice.

Its Turnstile result is particularly interesting for projects where accuracy matters more than latency. At 29 seconds, though, it is noticeably slower than CapMonster Cloud, CapSolver, and 2Captcha.

4. CapMonster Cloud: strong when the workload fits

CapMonster Cloud has several very good rows:

Captcha type Correctness Received Time
reCAPTCHA v3 96% 98% 4.26 sec
Amazon captcha 96% 97% 17 sec
Cloudflare Turnstile 97% 99% 11 sec

The reCAPTCHA v3 result stands out. It trails 2Captcha by only one percentage point while returning answers much faster.

Amazon captcha shows a similar tradeoff: 96% correctness in 17 seconds compared with 98% in 33 seconds for 2Captcha and SolveCaptcha.

But the strong results do not carry across every category.

On Arkose/FunCaptcha, CapMonster Cloud reached 88% correctness but returned a result for only 46% of submitted tasks. Image captcha correctness was 40%.

So CapMonster Cloud makes more sense when the captcha mix is already known. For reCAPTCHA v3 and Turnstile, it deserves serious consideration. For other categories, the numbers are less convincing.

5. CapSolver: genuinely fast, but very dependent on the challenge

CapSolver owns some of the lowest response times in the benchmark:

  • 0.70 seconds for image captcha;
  • 4.25 seconds for Amazon captcha;
  • 5.84 seconds for reCAPTCHA v3;
  • 10 seconds for Turnstile.

Those numbers are useful on reCAPTCHA and Turnstile because correctness remains reasonably close to the leading services.

Amazon and image captcha are a different story.

Correctness drops to 44% on Amazon captcha and 15% on image captcha.

In those cases, the solver itself is fast, but the rest of the workflow may spend the saved time handling failed answers.

That makes CapSolver difficult to judge as simply “fast” or “weak.” It is both, depending on the challenge type.

For reCAPTCHA v3 or Turnstile, its speed is worth testing. For Amazon and image captcha, the benchmark points elsewhere.

6. DeathByCaptcha: not enough detail for a fair category comparison

DeathByCaptcha ranks sixth in the available overall comparison.

The problem is not only the position. The source export does not contain the same detailed category rows available for most of the other services.

Without those rows, there is no solid basis for saying that DeathByCaptcha is particularly strong or weak on reCAPTCHA, Turnstile, Arkose, or another individual challenge.

It would need separate testing before being included in a serious shortlist.

Which captcha solver works best for each type?

Captcha type Best benchmark result
reCAPTCHA v2 2Captcha
reCAPTCHA v3 2Captcha
Amazon captcha 2Captcha and SolveCaptcha
Arkose/FunCaptcha SolveCaptcha
Cloudflare Turnstile Anti-Captcha
Cloudflare Challenge SolveCaptcha
Image captcha Anti-Captcha

For a project that only encounters one or two captcha types, this table is more useful than the overall ranking.

A reCAPTCHA-heavy workflow points toward 2Captcha. Arkose/FunCaptcha and Cloudflare Challenge favor SolveCaptcha. Anti-Captcha is the first service worth testing for Turnstile and traditional image captcha.

Is the fastest captcha solver actually better?

Sometimes.

If two providers are within one or two percentage points of each other, a large latency difference can matter. reCAPTCHA v3 is the clearest example: CapMonster Cloud and CapSolver give up very little correctness while returning answers several times faster than 2Captcha.

That logic breaks down when the accuracy gap gets wider.

CapSolver’s 4.25-second Amazon result is less impressive once correctness falls to 44%. A failed answer can mean another challenge, another request, another proxy round trip, or another browser step.

For website automation, it is better to watch the whole flow:

  • completed workflows per hour;
  • retries per completed workflow;
  • browser restarts;
  • proxy traffic;
  • total completion time.

Solver latency is only one piece of that.

How to choose a captcha solver for website automation

Start with the captcha types that actually appear in the project.

Captcha type Providers worth testing first
reCAPTCHA v2 2Captcha, SolveCaptcha, CapSolver
reCAPTCHA v3 2Captcha, CapMonster Cloud, CapSolver
Amazon captcha 2Captcha, SolveCaptcha, CapMonster Cloud
Arkose/FunCaptcha SolveCaptcha, 2Captcha
Cloudflare Turnstile Anti-Captcha, CapMonster Cloud, 2Captcha
Cloudflare Challenge SolveCaptcha, 2Captcha
Image captcha Anti-Captcha, SolveCaptcha, 2Captcha

This is only a shortlist.

Pick two or three candidates and test them on the real application. Accuracy and response time are the obvious metrics, but integration details start to matter quickly: API behavior, SDK support, proxy handling, error reporting, and fallback options.

Results may also change with region, browser fingerprint, challenge configuration, proxy quality, session state, and provider load.

FAQ

What is the best captcha solving service overall?

2Captcha ranks first in this comparison because it performs well across several captcha types and has broad integration support.

Other services still beat it in individual categories.

Which captcha solver is fastest?

CapSolver records several of the lowest response times in the dataset. CapMonster Cloud is also very fast on reCAPTCHA v3 and Turnstile.

The answer depends on the captcha type.

What is the best service for reCAPTCHA?

2Captcha leads both reCAPTCHA v2 and reCAPTCHA v3 in the available data.

What is the best service for Cloudflare Turnstile?

Anti-Captcha has the highest correctness at 99%. CapMonster Cloud is substantially faster while still reaching 97%.

Should developers use more than one captcha provider?

For some projects, yes.

A general-purpose provider can handle most traffic while another service is used for a captcha type where it performs noticeably better.

The tradeoff is more code, monitoring, billing, and maintenance. For a smaller project, one dependable provider is usually easier to manage.

Final thoughts

There is no single provider that dominates every test.

2Captcha has the strongest overall result. SolveCaptcha does particularly well on Arkose/FunCaptcha and Cloudflare Challenge. Anti-Captcha leads Turnstile and image captcha. CapMonster Cloud and CapSolver become more interesting when low latency matters and their accuracy stays reasonably close to the leader.

Benchmark data is useful for cutting a long list down to a few candidates. After that, the real website should decide.

The best result is not necessarily the fastest API response. It is the service that gets the complete task finished with the fewest retries.

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