# Best open source survey and event tools > The best open source survey and event tool is Formbricks, with 13,065 GitHub stars, the AGPL-3.0 license and a Docker image; Rallly and HeyForm are strong alternatives. This page also breaks the picks down by team size and use: Formbricks leads for startups and small business. The overall ranking weighs GitHub stars, commits in the last year, Docker images, open-source licenses and recent commits across the 22 apps in the polls, surveys & events category of the appsgit catalog. ## Key facts | Fact | Value | |---|---| | Question | What is the best open source survey and event tool? | | Picks | 15 | | Top pick | Formbricks (13,065 stars) | | Data as of | Oct 7, 2026 | | Canonical URL | https://appsgit.com/best/open-source-survey-tools | ## Top picks 10 of the 22 apps in the polls, surveys & events category, ranked on GitHub stars, commits in the last year, Docker images, open-source licenses and recent commits. - [Formbricks](https://appsgit.com/apps/formbricks) (13,065 stars, AGPL-3.0, TypeScript, Docker): Formbricks has 13,065 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 1,403 commits in the last year; it replaces Typeform and Google Forms. - [Rallly](https://appsgit.com/apps/rallly) (5,285 stars, AGPL-3.0, TypeScript, Docker): Rallly has 5,285 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 1,513 commits in the last year; it replaces Calendly. - [HeyForm](https://appsgit.com/apps/heyform) (8,997 stars, AGPL-3.0, TypeScript, Docker): HeyForm has 8,997 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 117 commits in the last year; it replaces Typeform and Google Forms. - [Fider](https://appsgit.com/apps/fider) (4,558 stars, AGPL-3.0, Go, Docker): Fider has 4,558 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 467 commits in the last year. - [OpnForm](https://appsgit.com/apps/opnform) (3,783 stars, AGPL-3.0, PHP, Docker): OpnForm has 3,783 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 292 commits in the last year; it replaces Typeform and Google Forms. - [LimeSurvey](https://appsgit.com/apps/limesurvey) (3,744 stars, GPL-2.0, JavaScript): LimeSurvey has 3,744 GitHub stars, uses the GPL-2.0 license and had 1,385 commits in the last year; it replaces Typeform and Google Forms. - [Bracket](https://appsgit.com/apps/bracket) (1,741 stars, AGPL-3.0, TypeScript, Docker): Bracket has 1,741 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 419 commits in the last year. - [indico](https://appsgit.com/apps/indico) (2,115 stars, MIT, Python): indico has 2,115 GitHub stars, uses the MIT license and had 442 commits in the last year; it replaces Eventbrite. - [docassemble](https://appsgit.com/apps/docassemble) (989 stars, MIT, JavaScript, Docker): docassemble has 989 GitHub stars, uses the MIT license, ships a Docker image and had 253 commits in the last year. - [pretalx](https://appsgit.com/apps/pretalx) (947 stars, Apache-2.0, Python): pretalx has 947 GitHub stars, uses the Apache-2.0 license and had 1,465 commits in the last year; it replaces Eventbrite. ## Best for startups and small business Ranked for startups and small business (the same order for each) on GitHub stars, commits in the last year, Docker images, open-source licenses, project websites, recent commits and deploy guides. - [Formbricks](https://appsgit.com/apps/formbricks) (13,065 stars, AGPL-3.0, TypeScript, Docker): Formbricks has 13,065 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 1,403 commits in the last year; it replaces Typeform and Google Forms. For startups it also scores on a Docker image, an open-source license, a project website and a commit in the last 90 days. - [Rallly](https://appsgit.com/apps/rallly) (5,285 stars, AGPL-3.0, TypeScript, Docker): Rallly has 5,285 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 1,513 commits in the last year; it replaces Calendly. For startups it also scores on a Docker image, an open-source license, a project website and a commit in the last 90 days. - [HeyForm](https://appsgit.com/apps/heyform) (8,997 stars, AGPL-3.0, TypeScript, Docker): HeyForm has 8,997 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 117 commits in the last year; it replaces Typeform and Google Forms. For startups it also scores on a Docker image, an open-source license, a project website and a commit in the last 90 days. - [Fider](https://appsgit.com/apps/fider) (4,558 stars, AGPL-3.0, Go, Docker): Fider has 4,558 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 467 commits in the last year. For startups it also scores on a Docker image, an open-source license, a project website and a commit in the last 90 days. - [OpnForm](https://appsgit.com/apps/opnform) (3,783 stars, AGPL-3.0, PHP, Docker): OpnForm has 3,783 GitHub stars, uses the AGPL-3.0 license, ships a Docker image and had 292 commits in the last year; it replaces Typeform and Google Forms. For startups it also scores on a Docker image, an open-source license, a project website and a commit in the last 90 days. ## How this list was made - Candidates: the 22 apps in the polls, surveys & events category. Archived projects and projects with no commit in the last two years are left out. - Base score: GitHub stars on a log scale plus commits in the last 12 months (log scale, capped at 1,000). - Bonus points for a published Docker image, an OSI-approved open-source license and a commit in the last 90 days. - Each "Best for" section re-ranks the same apps with that audience's profile (for example startups add points for permissive licenses, project websites and recent commits; small business for Docker images and deploy guides). - Source-available apps can rank, but they are labelled and never described as open source. ## FAQ ### Is Formbricks free? Yes. Formbricks is open-source software released under the AGPL-3.0 license, so you can self-host it at no cost. You only pay for the server it runs on, and some projects also offer an optional paid cloud plan. ### Which open source survey and event tool is best for a startup? Formbricks ranks first for startups, with 13,065 GitHub stars, the AGPL-3.0 license and a Docker image; Rallly and HeyForm follow. The startups ranking adds points for Docker images, permissive licenses, project websites and recent commits on top of stars and activity. ### Which open source survey and event tool is best for a small business? Formbricks ranks first for small business, with 13,065 GitHub stars, the AGPL-3.0 license and a Docker image; Rallly and HeyForm follow. The small business ranking adds points for Docker images, open-source licenses, project websites, recent commits and deploy guides on top of stars and activity. ### Can I self-host these survey and event tools with Docker? Yes, 7 of the 10 picks. Formbricks, Rallly and HeyForm publish Docker images, so you can run them on a VPS or home server with Docker Compose. The others install from their own packages or source; follow each project's install guide. ### Are all of these survey and event tools open source? All 10 apps on this list are open source. You can self-host and modify each one under its license. ## Related questions - [What is the best open source booking and scheduling system?](https://appsgit.com/best/open-source-booking-systems) - [What is the best open source video conferencing software?](https://appsgit.com/best/open-source-video-conferencing) - [What is the best open source budgeting app?](https://appsgit.com/best/open-source-budgeting-software) - [What is the best open source CMS?](https://appsgit.com/best/open-source-cms) - [What is the best open source team chat app?](https://appsgit.com/best/open-source-team-chat) - [What is the best open source file sharing app?](https://appsgit.com/best/open-source-file-sharing) - [What is the best open source analytics tool?](https://appsgit.com/best/open-source-analytics) - [What is the best open source NVR?](https://appsgit.com/best/open-source-nvr) ## See also - [All polls, surveys & events apps](https://appsgit.com/categories/polls-events) - [All booking & scheduling apps](https://appsgit.com/categories/booking-scheduling) - [All video conferencing & VoIP apps](https://appsgit.com/categories/video-conferencing) - [Open-source alternatives to Typeform](https://appsgit.com/alternatives/typeform) - [Open-source alternatives to Google Forms](https://appsgit.com/alternatives/google-forms) - [Open-source alternatives to SurveyMonkey](https://appsgit.com/alternatives/surveymonkey) - [Open-source alternatives to Calendly](https://appsgit.com/alternatives/calendly) - [Open-source alternatives to Eventbrite](https://appsgit.com/alternatives/eventbrite) --- Canonical page: https://appsgit.com/best/open-source-survey-tools Source: appsgit (https://appsgit.com), the app store for github. Data from the GitHub API, refreshed nightly. Machine access: JSON API https://appsgit.com/api/v1/apps (OpenAPI: https://appsgit.com/openapi.json), MCP server https://mcp.appsgit.com/mcp, full index https://appsgit.com/llms-full.txt.