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mosparo

● Identity checked

Spam protection · Vendor site 2026-10-04

mosparo is an open-source, privacy-oriented spam protection service for HTML forms that blocks bots without CAPTCHA puzzles. It stores only submitted form data plus IP and user agent, encrypts entries, and auto-deletes them after fourteen days.

Updated 2026-10-04View sources
Official website
Category
Spam protection
Free access
Homepage states mosparo is open source and free to install on regular web hosting.
API access
Documentation on mosparo.io describes integrating the checker into forms and managing rules.

Is mosparo right for you?

A good fit for

Site owners who need accessible, GDPR-minded form spam filtering without third-party ad tracking.

Before you choose

You host the mosparo instance yourself; protection applies only to forms you wire up to it.

Modern spam protection without puzzles

mosparo intercepts spam submissions before they reach inboxes, using customizable boxes and encrypted short-term storage while staying compatible with assistive technologies.

What it can do

Features & capabilities

Unknown is different from unavailable. Each fact carries its own evidence.

CapabilityValueEvidenceChecked
AccessibilityMarketing emphasizes screen reader and keyboard compatibility without puzzle CAPTCHAs.Facts sourced2026-10-04
RetentionSite states form data is deleted automatically after 14 days with encrypted storage.Facts sourced2026-10-04
ReleaseDownload section references mosparo v1.5.10 hosted on GitHub.Facts sourced2026-10-04

Understand the total cost

mosparo pricing & plans

Free

Free

Homepage states mosparo is open source and free to install on regular web hosting.

Access
Homepage states mosparo is open source and free to install on regular web hosting.
Explore pricing & history

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The practical questions

Frequently asked questions

What is mosparo used for?

mosparo is an open-source, privacy-oriented spam protection service for HTML forms that blocks bots without CAPTCHA puzzles. It stores only submitted form data plus IP and user agent, encrypts entries, and auto-deletes them after fourteen days.

Does mosparo have a free plan?

Homepage states mosparo is open source and free to install on regular web hosting.. This record lists ongoing free access; check the plan limits before starting.

How much does mosparo cost?

No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.

Can I use mosparo through an API?

Documentation on mosparo.io describes integrating the checker into forms and managing rules.. API access and subscription access may have different terms; consult the linked sources.

What should I check before choosing it?

You host the mosparo instance yourself; protection applies only to forms you wire up to it.

Price history

No retained pricing changes yet. A current price alone does not establish a historical trend.

How this profile is supported

Facts apply to the named version and check date. Send a sourced correction if something changed.