Every hosted form tool bills you the same way: per response, per seat, or both. Typeform’s free plan stops at 100 responses a month, then it’s $28\/mo to keep going. Jotform’s free tier caps you at 5 forms and 100 submissions. Formstack doesn’t even have a free tier – it’s a 14-day trial, then $83\/mo. And on every one of them, your respondents’ answers live on someone else’s servers, which is a real problem the moment you’re collecting anything personal.<\/p>\n
There’s a way out that most people skip because it sounds harder than it is: self-host an open-source form builder. You get unlimited forms, unlimited responses, your data on a server you control, and a flat monthly cost that doesn’t move when your form goes viral.<\/p>\n
I went through the seven open-source form builders worth running in 2026, checked the actual licenses and databases (a lot of comparison posts get these wrong), and lined them up against the SaaS tools they replace. Here’s what’s real.<\/p>\n
These aren’t static sites you can drop on a CDN. Every one of them needs a database, and most need SMTP to send email notifications. So you need a real server with a database attached, not a serverless function or a frontend-only host like Vercel.<\/p>\n
That’s the one honest tradeoff. The upside is everything after that: no response caps, no per-seat pricing, no surprise bill, and full ownership of the data.<\/p>\n
OpnForm is a clean, no-code form builder (PHP\/Laravel backend, Vue frontend) that feels a lot like the hosted tools but runs on your own box. It defaults to PostgreSQL and also supports MySQL\/MariaDB, and it ships docker-compose files so self-hosting is a copy-paste away.<\/p>\n
Formbricks (TypeScript\/Next.js, Prisma, ~12.5k GitHub stars) is the heavyweight here. It’s pitched as an experience-management platform – think Qualtrics, not a contact form. The managed cloud free tier gives you 250 responses a month and the entry paid plan is $74\/mo, so the self-hosted version pays for itself fast if you collect any real volume.<\/p>\n
HeyForm (Node\/NestJS + React, ~8.9k stars) is one of the better-looking open-source builders, with a genuinely nice form-design experience. Its hosted Basic plan is $15\/mo for 5,000 responses, which tells you what you’re saving by running it yourself.<\/p>\n
Typebot (~10.1k stars) builds one-question-at-a-time conversational forms and chatbot-style flows. Its hosted free tier is 200 chats a month and the Starter plan is $39\/mo for 2,000, so self-hosting is the obvious move if you’re doing any volume.<\/p>\n
One thing the comparison roundups keep getting wrong: Typebot is not<\/strong> AGPL. It uses the Functional Source License (FSL), which is “Fair Source” – the code converts to Apache\/MIT after two years, but until then you can’t offer it as a competing hosted service. For self-hosting your own forms, that restriction never touches you.<\/p>\n LimeSurvey has been around longer than most of this list and it shows, in both directions. It’s a serious survey platform (PHP\/Yii) that handles complex branching and academic-grade questionnaires, and it’s flexible on the database – MySQL\/MariaDB, PostgreSQL, or MSSQL all work. The Community Edition self-hosts cleanly via Docker, while LimeSurvey Cloud starts around \u20ac29\/mo.<\/p>\n Form.io isn’t a no-code builder you hand to a marketer. It’s a JSON-schema-driven form-and-data API (Node.js core, React renderer) meant to be embedded inside your own application. Powerful if that’s the job, overkill if it isn’t. Staying on their hosted SaaS reportedly starts around $300\/mo, which is exactly why teams self-host the core.<\/p>\n Baserow (Django + Vue, PostgreSQL) is essentially an open-source Airtable, and its Form view is a data-collection front door into a table. If you already want a no-code database and forms are a feature you need, this is two tools in one. The free plan includes the Form view, and Premium is $10\/user\/mo.<\/p>\n\n
5. LimeSurvey – the old reliable for long surveys<\/h3>\n
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6. Form.io – for developers embedding forms in an app<\/h3>\n
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7. Baserow – an Airtable that happens to do forms<\/h3>\n
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Side-by-side<\/h2>\n