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ALTCHA VS Basin

Compare ALTCHA VS Basin and see what are their differences

ALTCHA

ALTCHA is a free CAPTCHA alternative that uses a proof-of-work mechanism to protect your website, and online services from spam.

Rating
0 reviews
Pricing
Open source Free
Alternatives Is it good?
Basin

Collect form submissions, filter spam, and automate workflows — with AI landing pages from Basin Sites.

Rating
0 reviews
Pricing
Freemium Free trial $12.5 / Monthly (Starter: All you need to get started.)
Alternatives Is it good?
Thalam
OpenAI-compatible API gateway for GPT, Claude, Gemini, DeepSeek, Qwen, Kling and more. One key, one endpoint, one bill. Pay per token, no lock-in. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Basin might be a bit more popular than ALTCHA. We know about 4 links to it since March 2021 and only 3 links to ALTCHA.

social mentions
3 vs 4
SPAM Protection popularity
100% vs 0%
alternatives listed
81 vs 240+

Base details

Website, pricing, platforms and company facts side by side.

ALTCHA
Basin
Website altcha.org usebasin.com
Pricing
Open source Free
Freemium Free trial $12.5 / Monthly (Starter: All you need to get started.) Official pricing
Platforms
Web REST API
Web
Company — Startup from Canada · 2017
Listed in
Security & Privacy SPAM Protection Anti-Spam Captcha SPAM API +2
Web App Form Backend Developer Tools Surveys Form Builder Automation AI Agents +4

About ALTCHA and Basin

In their own words, as submitted to SaaSHub.

ALTCHA
Basin

ALTCHA uses a proof-of-work mechanism to protect your website, APIs, and online services from spam and unwanted content. Unlike other solutions, ALTCHA is free, open-source and self-hosted, without external services, does not use cookies nor fingerprinting, does not track users, and is fully...

Read more about ALTCHA

Basin automagically collects form submissions, blocks spam, sends email notifications, and triggers integrations with connected apps — saving you the hassle of building and maintaining your own form backend API. Basin Sites creates AI-generated landing pages with Basin lead capture built in....

Read more about Basin

Features and specs

What each product offers, as listed by its team.

ALTCHA 9 features
Basin 18 features
  • Privacy-friendly, GDPR compliant
    No cookies, no tracking, no external servers.
  • Frustration-free
    No visual puzzles. PoW Captcha is better for people.
  • Spam Filtering
    Employs machine learning to categorize submitted data and identify unwanted messages.
  • Open-source
    Free to use, free to modify. MIT licensed.
  • End-to-End Encryption
    The Encryption Shield mitigates data breaches by encrypting data with asymmetric end-to-end encryption.
  • Digital e-Signatures
    e-Signatures made easy with eIDAS-compliant simple and advanced signatures - qualified digital certificates and DigiDoc.
  • Visual Form Builder
    Create custom forms effortlessly with the visual form builder, empowering users to design tailored solutions without any coding expertise.
  • File Attachments
    Safely request and securely store file attachments with end-to-end encryption, ensuring the utmost protection for your data.
  • Send to Email or Webhook
    Configure forms to seamlessly send data to email, APIs, or webhooks using processors, facilitating efficient data handling and integration with your workflows.
  • Custom Redirects
    Redirect users to any URL after successful form submission.
  • File Uploads
    Allow visitors to upload files and attachments directly through your forms.
  • Projects / Workspaces
    Organize forms and submissions into projects for easier management.
  • Form Sharing
    Share forms with teammates or collaborators for review and management.
  • Webhooks
    Send form submissions instantly to external services and APIs.
  • Custom Templates
    Create reusable templates to quickly deploy new forms.
  • Custom Domains
    Send emails from your own domain for a seamless branded experience.
  • API Access
    Access submissions and manage forms programmatically via Basin’s API.
  • Advanced Spam Protection
    Automatically detect and block spam submissions using multiple filtering techniques.
  • Integrations
    Connect Basin with tools like Zapier, Slack, Google Sheets, and more.
  • CSV Data Exporting
    Export form submissions to CSV for reporting, backups, or analysis.
  • Domain Restrictions
    Limit which websites can submit data to your forms.
  • Autoresponder Emails
    Automatically send confirmation or follow-up emails to users after submission.
  • Partial Form Submission Capture
    Capture leads even if users abandon the form before completing it.
  • Submission Analytics
    Track form activity and performance through built-in analytics.
  • Team Collaboration
    Invite teammates and manage access to projects and submissions.
  • Email Notifications
    Receive instant email alerts whenever a new form submission is received.
  • Custom Success Messages
    Display personalized confirmation messages after submissions.

Analysis

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

ALTCHA
Basin

No analysis of ALTCHA yet.

Overall verdict

  • Yes, Basin is generally regarded as a reliable and effective service for managing form submissions.

Why this product is good

  • Basin (usebasin.com) is considered a good option because it provides a seamless and code-free way to handle form submissions. It allows users to quickly set up serverless form backends, manage submissions efficiently, and integrate with other tools such as Zapier, Slack, and email. Basin is known for its user-friendly interface and reliability, which appeal to developers and non-developers alike.

Recommended for

    Basin is recommended for web developers, designers, and anyone building websites or web applications who need a straightforward solution for handling form submissions without the hassle of setting up a server.

Videos

Walkthroughs and reviews on video.

ALTCHA 0 videos + Add
Basin 2 videos + Add

No ALTCHA videos yet. You could help us improve this page by suggesting one.

Send emails from an HTML Contact Form in 2 minutes

More videos

  • - HTML Form Submissions to your Slack Channel

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
ALTCHA
Basin
100% 100%
SPAM Protection
0% 0%
0% 0%
Form Builder
100% 100%
100% 100%
Captcha
0% 0%
0% 0%
Forms And Surveys
100% 100%

Questions & Answers

As answered by people managing ALTCHA and Basin.

What makes your product unique?

ALTCHA's answer

What makes ALTCHA unique is that it is free, open-source and self-hosted, without external services, does not use cookies nor fingerprinting, does not track users, and is fully compliant with GDPR. Unlike other captcha solutions, ALTCHA does not require users to solve puzzles or captchas and uses a proof-of-work mechanism instead.

Basin's answer:

Basin combines the simplicity of a form backend with powerful lead intelligence and automation tools. In addition to collecting form submissions and blocking spam, Basin helps businesses qualify and enrich leads automatically.

Features like Lead Agent use AI to analyze incoming submissions and help teams prioritize high-quality leads. Basin also includes email verification and phone verification to ensure contact details are valid, reducing fake or low-quality submissions.

Beyond basic form handling, Basin offers partial submission capture, advanced spam protection, integrations, and built-in analytics, allowing teams to turn website forms into a reliable lead generation and automation pipeline — without building or maintaining their own backend infrastructure.

Why should a person choose your product over its competitors?

ALTCHA's answer

Here are some key reasons why a person should choose ALTCHA over its competitors:

  • Privacy compliance - ALTCHA is fully compliant with privacy regulations like GDPR since it does not use cookies, fingerprinting or track users. This is a major advantage over other captcha solutions.
  • Open source and self-hosted - ALTCHA is free, open source software that can be self-hosted without relying on external services. This gives more control and independence to the user.
  • Accessible design - ALTCHA uses a proof-of-work mechanism instead of puzzles or captchas, making it more friendly and accessible for humans. Captchas can be difficult for some users.
  • Machine compatibility - ALTCHA is designed to also work for machines and APIs, making services accessible for bots and automated systems. Other solutions may not be as compatible.
  • Modern approach - ALTCHA represents a privacy-first, inclusive approach to spam protection as opposed to traditional captcha methods. This future-proofs the solution.
  • Effective spam filtering - In addition to proof-of-work, ALTCHA also offers an effective spam filter module to block sophisticated spam attacks. This provides comprehensive protection.

So in summary, ALTCHA's privacy compliance, open design, accessibility, machine compatibility and modern approach give it clear advantages over competing captcha solutions.

Which are the primary technologies used for building your product?

ALTCHA's answer

JavaScript and Svelte.

How would you describe the primary audience of your product?

ALTCHA's answer

Our primary audience for ALTCHA Forms includes enterprises, medium and small businesses, non-profits, and individuals who need a reliable, secure, and compliant solution for data collection and management. Whether you're a large corporation dealing with extensive regulatory requirements, a small business looking to protect customer and employee data, a non-profit organization managing sensitive information, or an individual seeking robust data security, ALTCHA Forms provides the tools and features necessary to meet your needs. With a focus on compliance, user-friendly design, and advanced security measures, our platform is tailored to support diverse users in navigating complex regulatory landscapes and ensuring data protection.

User comments

Share your experience with using ALTCHA and Basin. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

ALTCHA 3 mentions
Basin 4 mentions
  • A self-hosted Google reCAPTCHA alternative (we ship it)
    The captcha on orkestr is Altcha. Self-hosted, no third-party JS, no Google, no behavioral tracking. Users don't see a puzzle. There's a single checkbox and a quiet "verifying..." while the browser does some math. About a second, total. - Source: dev.to / 4 months ago
  • Why Proof-of-Work Beats CAPTCHA for Form Protection
    Here's how PoW works for form protection (using the ALTCHA wire format):. - Source: dev.to / 6 months ago
  • Wicketkeeper – privacy-friendly, self-hostable PoW CAPTCHA
    Go based, similar to JS based ALTCHA https://altcha.org/ discussed at https://news.ycombinator.com/item?id=43971068. - Source: Hacker News / 9 months ago
  • How to add a contact form to an Astro site without a backend
    There are plenty: Formspree, Basin, Formcarry, Web3Forms, Netlify Forms if you're on Netlify. I build CatchForm, so that's what the code below uses — the shape is the same whichever you pick. - Source: dev.to / 14 days ago
  • RudderStack's Data Stack: Deep Dive
    Another tool we use on the marketing site is Basin, which acts as a back-end form submission handler that isn't susceptible to client-side browser blockers or JavaScript errors, meaning we capture leads no matter what. Basin routes data... - Source: dev.to / almost 5 years ago
  • What do you usually do when you need a fast and simple way to capture some simple data? I have a static website with a signup form, and using a database just to save some emails would be an overkill.
    I just use Basin https://usebasin.com. Source: about 5 years ago

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