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Basin alternatives · Forms

Open-source alternatives to Basin

Basin is not described as open source on its own site. 9 of the 60 other form and survey tools in this directory are open source, according to their own sites.

Basin has a free plan. Paid plans start at $12.50 per month for 250 submissions, billed yearly ($15 billed monthly). 8 of them are free or have a free plan.

9 tools · Listings checked up to Nov 13, 2026 · Where the facts come from

How each one differs from Basin

  1. Formbricks

    Open-source survey platform for links, websites and apps

    • Formbricks is open source and self-hostable, according to its own site.
    • Formbricks also covers templates and surveys.
    • Basin also covers forms and transactional email.
    Formbricks vs BasinFormbricks pricing and details

  2. OpnForm

    Open-source form builder with unlimited submissions

    • OpnForm starts at $25 per month, billed yearly ($299); $29 billed monthly. Basin starts at $12.50 per month for 250 submissions, billed yearly ($15 billed monthly).
    • OpnForm is open source and self-hostable, according to its own site.
    • OpnForm also covers templates and surveys.
    • Basin also covers workflow automation and transactional email.
    OpnForm vs BasinOpnForm pricing and details

  3. Ninja Forms

    WordPress form builder with a free core and paid add-ons

    • Ninja Forms starts at $99 per year for 3 sites, after a first year at $59.40. Basin starts at $12.50 per month for 250 submissions, billed yearly ($15 billed monthly).
    • Ninja Forms is open source, according to its own site.
    • Ninja Forms also covers templates.
    • Basin also covers transactional email.
    Ninja Forms pricing and details

  4. LimeSurvey

    Open-source survey tool, hosted in the cloud or self-hosted

    • LimeSurvey starts at $39 per month, billed monthly (charged in EUR, about €34). Basin starts at $12.50 per month for 250 submissions, billed yearly ($15 billed monthly).
    • LimeSurvey is open source and self-hostable, according to its own site.
    • LimeSurvey also covers templates, surveys and reports.
    • Basin also covers workflow automation and transactional email.
    LimeSurvey pricing and details

  5. KoboToolbox

    Open-source data collection for field surveys, online or offline

    • KoboToolbox starts at $21 per month, billed annually ($25 billed monthly); nonprofits have a free plan. Basin starts at $12.50 per month for 250 submissions, billed yearly ($15 billed monthly).
    • Only KoboToolbox lists an Android app.
    • KoboToolbox is open source and self-hostable, according to its own site.
    • KoboToolbox also covers surveys and reports.
    KoboToolbox pricing and details

  6. HeyForm

    Open-source builder for conversational forms and surveys

    • HeyForm starts at $15 per month, billed annually ($18 billed monthly). Basin starts at $12.50 per month for 250 submissions, billed yearly ($15 billed monthly).
    • HeyForm is open source and self-hostable, according to its own site.
    • HeyForm also covers templates, no-code and surveys.
    • Basin also covers workflow automation and transactional email.
    HeyForm pricing and details

  7. Typebot

    Open-source chatbot and conversational form builder

    • Typebot starts at $39 per month for 2 seats and 2,000 chats. Basin starts at $12.50 per month for 250 submissions, billed yearly ($15 billed monthly).
    • Typebot is open source and self-hostable, according to its own site.
    • Typebot also covers no-code, whatsApp messaging and chatbots.
    • Basin also covers workflow automation and transactional email.
    Typebot pricing and details

  8. Form.io

    JSON form and API platform for developers, hosted or self-hosted

    • Form.io starts at $300 per month, hosted SaaS project; self-hosted from $660 per month. Basin starts at $12.50 per month for 250 submissions, billed yearly ($15 billed monthly).
    • Basin has a free plan. Form.io does not, though it has a free trial.
    • Form.io is open source and self-hostable, according to its own site.
    • Basin also covers workflow automation and transactional email.
    Form.io pricing and details

  9. Contact Form 7

    Free open-source contact form plugin for WordPress

    • Contact Form 7 is free. Basin starts at $12.50 per month for 250 submissions, billed yearly ($15 billed monthly).
    • Contact Form 7 is open source and self-hostable, according to its own site.
    • Basin also covers workflow automation and transactional email.
    Contact Form 7 pricing and details

Common questions

Is there an open-source alternative to Basin?

Yes. Formbricks, OpnForm, Ninja Forms, LimeSurvey, KoboToolbox, HeyForm, Typebot, Form.io and 1 more are open source, according to their own sites.

Is Basin open source?

Basin is not described as open source on its own site. The listing was checked on Nov 12, 2026 against the pages it cites.

Which of these form and survey tools are free?

Formbricks, OpnForm, Ninja Forms, LimeSurvey, KoboToolbox, HeyForm, Typebot and Contact Form 7 are free or have a free plan.

When was this checked?

Each listing shows its own date. On this page they run from Oct 6, 2026 to Nov 13, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Basin: the alternatives its listing names first, then the tools that share the most features with it.