1
Also covers security tools and self hosted · same kind of open-source project
Cap offers an open-source, self-hosted CAPTCHA alternative using proof-of-work and instrumentation challenges.
Alternatives
The Best LibreCaptcha Alternatives in 2026
24 alternatives2 free · 19 open source
Looking for something like LibreCaptcha? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 2 are free or have a free plan and 19 are open source.
About LibreCaptchagithub.com/librecaptcha/lc-core
VisitBuild self-hosted, privacy-respecting CAPTCHA flows with the LibreCaptcha framework.
Top picks at a glance
First suggestionCapCap offers an open-source, self-hosted CAPTCHA alternative…Free or freemium optionM CaptchaAdd a proof-of-work CAPTCHA system to an application using…Another optionCapCap provides a self-hosted, open source alternative to…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Cap | — | Yes | — |
| 2 | Cap | — | Not stated | Web |
| 3 | M Captcha | Free | Yes | — |
| 4 | Smart Sec Cam | — | Yes | — |
| 5 | git-hound | — | Yes | Linux |
| 6 | DVIA-v2 | — | Yes | iOS |
| 7 | Rang3r | — | Yes | Linux |
| 8 | dnSpyEx | — | Yes | Windows |
| 9 | Oscp Exam Report Template Markdown | — | Yes | Windows |
| 10 | BlackVault | — | Yes | — |
All LibreCaptcha alternatives
2
Cap
trycap.devAlso covers security tools and self hosted
Cap provides a self-hosted, open source alternative to CAPTCHA challenges for websites.
3
Also covers open source, security tools, and self hosted · same kind of open-source project · free
Add a proof-of-work CAPTCHA system to an application using the mCaptcha backend component.
4
Also covers open source, security tools, and self hosted · same kind of open-source project
Run a privacy-focused home security camera system with support for multiple USB or Raspberry Pi cameras.
5
Also covers git, open source, and security tools · same kind of open-source project
git-hound searches public GitHub repositories for exposed secrets and credentials.
6
Also covers git, open source, and security tools · same kind of open-source project
Practice iOS penetration testing in a deliberately vulnerable app, with exercises covering vulnerabilities tested through iOS 11.
7
Also covers git, open source, and security tools · same kind of open-source project
Scan IP addresses and ports concurrently with rang3r, a multithreaded scanner.
8
Also covers git, open source, and security tools · same kind of open-source project
dnSpyEx continues the dnSpy project as a debugger and assembly editor for .NET.
9
Also covers git, open source, and security tools · same kind of open-source project
Use Markdown templates to prepare reports for listed Offensive Security certification exams.
10
Also covers security tools and self hosted · same kind of open-source project
BlackVault protects AI API credentials with rate limits, budget caps, model restrictions, and an emergency kill switch.
11
OpenAPI Converter
github.com/alufers/mitmproxy2swaggerAlso covers git and security tools · same kind of open-source project
Convert captured proxy traffic into an OpenAPI description by reverse engineering REST APIs.
12
Also covers git and security tools · same kind of open-source project · free plan
Ombre adds security, caching, memory, and audit functions in an infrastructure layer for AI requests.
13
OSCP-Exam-Report-Template-Markdown
noraj.github.io/OSCP-Exam-Report-Template-Mark…Also covers git and security tools
This Markdown template helps candidates prepare reports for Offensive Security certification exams.
14
Also covers open source and security tools · same kind of open-source project
Inspect iOS and macOS applications with Malimite, a decompiler project hosted on GitHub.
15
Also covers open source and security tools · same kind of open-source project
Analyze software with Ghidra, a framework for reverse engineering compiled programs.
16
2FAuth
docs.2fauth.appAlso covers security tools
Store, generate, and organize one-time password codes with 2FAuth, a self-hosted manager for individuals and teams.
17
Also covers open source and security tools · same kind of open-source project
Use reference sheets for reverse engineering, binary analysis, and assembly programming tools.
18
mCaptcha
mcaptcha.orgAlso covers security tools
Add proof-of-work verification to websites with mCaptcha, a privacy-focused automated CAPTCHA system.
19
Also covers open source and security tools · same kind of open-source project
Plexiglass helps detect and protect against vulnerabilities in large language models.
20
Also covers open source and security tools · same kind of open-source project
Karma Firewall is an Android firewall that states it requires no internet permission and intercepts no allowed user traffic.
21
Also covers open source and security tools · same kind of open-source project
This repository organizes formal verification and model-checking resources, techniques, and tools.
22
Also covers open source and security tools · same kind of open-source project
Security and best-practice issues in container images can be checked with Dockle.
23
Also covers open source and security tools · same kind of open-source project
AllSafe provides an intentionally vulnerable Android app for security testing and practice.
24
Also covers open source and security tools · same kind of open-source project
Browse a curated collection of information security tools, links, and learning resources.
No alternatives match this filter.
Alternatives to similar tools
git-hound24 alternativesReversing Bits24 alternativesOpenAPI Converter24 alternativesmCaptcha24 alternativesPlexiglass24 alternativesSmart Sec Cam24 alternatives
TopicSecurity Tools · 202 sites Best-of list8 Best Free Authenticator Apps for Codes and Recovery ListingLibreCaptcha details
What is the best alternative to LibreCaptcha?
Based on features, tags and platforms, the closest alternatives to LibreCaptcha are Cap, Cap, and M Captcha.
Is there a free alternative to LibreCaptcha?
Yes. M Captcha and Ombre are free or offer a free plan.
Are there open-source alternatives to LibreCaptcha?
Yes: Cap, M Captcha, Smart Sec Cam, and git-hound.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative