Formbricks
In-app, website, link, and email surveys feed one open-source experience management platform: Formbricks. Its distinguishing strength is targeted in-app research: a JavaScript SDK triggers surveys on user events and attributes, with segmentation rules like "power users who have not seen a survey in 10 days," so questions reach the right cohort at the right moment instead of a mass email blast. The no-code editor offers 20+ question types including NPS, CSAT, CES, matrix, ranking, and file upload, with skip logic, conditional branching, best-practice templates, and full brand theming. Responses feed built-in analytics with summaries and CSV/JSON export, and integrations push data to Slack, Notion, Google Sheets, Airtable, Zapier, and n8n, with webhooks and an open API on every tier. Because self-hosted surveys load from your own domain rather than a blacklisted third-party script host, ad blockers do not suppress them - in-app surveys reach users that Hotjar-style tools silently miss, which measurably raises response rates. Self-hosting also removes the third-party sub-processor from your privacy policy entirely: survey responses often contain PII, and keeping them on your own server matters for GDPR-sensitive and regulated industries. The Community Edition has no response caps or tier-gated features, so core functionality and your data stay accessible regardless of any subscription. Next.js on PostgreSQL, AGPLv3.
HeyForm
Typeform's conversational format, self-hosted: HeyForm is the open-source form builder that presents one question at a time. Forms present one question at a time, which measurably improves completion rates compared to long static pages. It supports 40+ field types, from text, email, and phone inputs to picture choices, date pickers, star ratings, signatures, and file uploads. Conditional logic shows or hides questions based on earlier answers, routes respondents to different endings, and redirects to URLs, so a single form can serve multiple flows. Completed submissions land in a results dashboard with drop-off and completion analytics, and connect outward through webhooks or integrations with Zapier, Make, Google Sheets, Notion, Airtable, and Slack. Theming covers fonts, colors, backgrounds, and custom CSS, so embedded forms look native to your site rather than like a third-party widget; the JavaScript embed library renders them inline, as popups, or full-page, with shareable standalone links as the default. Team workspaces and projects with member management let multiple teams share one instance without mixing data. Self-hosting removes per-response pricing entirely - unlimited forms and submissions for flat hosting cost - and keeps lead data, feedback, and quiz answers in your own MongoDB, simplifying GDPR compliance. The stack is a NestJS server and React webapp backed by MongoDB and KeyDB, distributed under GPLv3 as a Docker image.
Typebot New
Say goodbye to boring, soul-sucking forms and hello to Typebot, your new best friend in the world of data collection! Imagine a chatbot so charming and efficient, it could convince a cat to take a bath. With Typebot, you can visually build advanced chatbots using powerful blocks, and then sprinkle them like fairy dust across your web or mobile apps. Watch in awe as your customer satisfaction and retention skyrocket, and your conversion rates triple faster than you can say 'goodbye forms, hello fun!' Drag and drop your way to chatbot nirvana, and if you're feeling fancy, throw in some custom code. Typebot's real-time data collection ensures you won't miss a single nugget of valuable info, while hidden fields, team collaboration, and custom domains make it the Swiss Army knife of chatbots. Loved by teams and creators worldwide, Typebot is here to make your data collection dreams come true—one delightful chat at a time!
OpnForm
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Budibase
Unleash the power of Budibase, the open-source superhero that transforms mere mortals into tool-creating wizards! Wave goodbye to the dark ages of time-consuming tool development and say hello to lightning-fast app conjuring. With Budibase, you don't need a spellbook (or coding experience) to whip up custom internal tools and forms faster than you can say 'Abracadabra!' Connect with your existing database, charm data from a Rest API, enchant a CSV into submission, or craft from the ether with Budibase's own mystical database. Drag, drop, click, and—voilà!—automated workflows and dazzling designs appear out of thin air. Join the league of over 75,000 teams who've harnessed Budibase to accelerate their business operations to warp speed. Need to secure your data treasures, automate the mundane, or streamline your kingdom's processes? Budibase has got your cape. Plus, hosting on RepoCloud means you'll save a treasure chest of gold compared to those other cloud giants!
Typebot
A fair-source chatbot and conversational-form builder: Typebot assembles conversations in a visual graph editor. In a visual graph editor you chain blocks from four categories: bubbles display text, images, video, audio, and embeds; inputs collect data through text fields, email, phone, buttons, picture choices, date pickers, file uploads, and Stripe payments; logic blocks handle conditional branching, variables, URL redirects, A/B testing, and custom JavaScript; integration blocks call webhooks, OpenAI, Google Sheets, Google Analytics, Meta Pixel, Zapier, Make, and Chatwoot. Build once, deploy anywhere: custom domains, WhatsApp, or embedded in any site as a container, popup, or chat bubble through a fast native JS library with no iframe and no external dependencies - plus an HTTP API for executing bots programmatically from any language. Theming covers fonts, colors, roundness, and shadows with custom CSS and reusable templates, and results arrive in real time with drop-off and completion analytics plus CSV export. Two Next.js apps (builder and viewer) self-host via Docker under the Functional Source License, which converts to Apache 2.0 after two years.