Software

Flexible tournament system to build a tournament setup, add teams, schedule matches, keep track of scores and present ranking live to the public. ([Demo](https://www.bracketapp.nl/demo), [Source Code](https://github.com/evroon/bracket))

The ultimate tool to interact with your audience (alternative to Slido, AhaSlides and Mentimeter). ([Source Code](https://github.com/ClaperCo/Claper))

Community-feedback tool for managing incoming feedback and prioritizing a public roadmap (alternative to Canny, UserVoice, Upvoty). ([Demo](https://product.clearflask.com), [Source Code](https://github.com/clearflask/clearflask))

A free, open-source expert system for guided interviews and document assembly, based on Python, YAML, and Markdown. ([Demo](https://demo.docassemble.org/run/legal), [Source Code](https://github.com/jhpyle/docassemble))

Open platform to collect and prioritize feedback (alternative to UserVoice). ([Demo](https://demo.fider.io), [Source Code](https://github.com/getfider/fider))

Experience Management Suite built on the largest open source survey stack worldwide. Gracefully gather feedback at every step of the customer journey to know what your customers need. ([Demo](https://app.formbricks.com), [Source Code](https://github.com/formbricks/formbricks))

Online service for planning an appointment or make a decision quickly and easily: Make a poll, Define dates or subjects to choose, Send the poll link to your friends or colleagues, Discuss and make a decision. ([Demo](https://framadate.org/aqg259dth55iuhwm), [Source Code](https://framagit.org/framasoft/framadate?))

Local community event and agenda sharing. ([Demo](https://demo.gancio.org/), [Source Code](https://framagit.org/les/gancio))

Self-destructing, shareable, no-registration event pages. ([Demo](https://gath.io/), [Source Code](https://github.com/lowercasename/gathio))

Form builder that allows anyone to create engaging conversational forms for surveys, questionnaires, quizzes, and polls. ([Source Code](https://github.com/heyform/heyform))

Manage complex group hierarchies with members, events and a lot more. ([Demo](https://demo.hitobito.com/en/users/sign_in), [Source Code](https://github.com/hitobito/hitobito))

Feature-rich web-based polling software. Supports extensive survey logic. ([Demo](https://demo.limesurvey.org), [Source Code](https://github.com/LimeSurvey/LimeSurvey))

Minimal events aggregator. ([Source Code](https://github.com/aaronpk/Meetable))

Federated tool that helps you find, create and organise events and groups. ([Source Code](https://framagit.org/framasoft/mobilizon/))

Beautiful open-source form builder. ([Demo](https://opnform.com/forms/create/guest), [Source Code](https://github.com/OpnForm/OpnForm))

Forward proxy server supporting proxy chaining, protocol inspection, MITM Interception, ICAP adaptation and transparent proxy. ([Source Code](https://github.com/bytedance/g3/tree/master/g3proxy))

Fast and secure standalone server for resizing and converting remote images. ([Source Code](https://github.com/imgproxy/imgproxy))

IPv4 over DNS tunnel solution, enabling you to start up a socks5 proxy listener. ([Source Code](https://github.com/yarrick/iodine))

A proxy server that runs a Shadowsocks instance for each access key and a REST API to manage the access keys. ([Source Code](https://github.com/OutlineFoundation/outline-server))

Non-caching web proxy with advanced filtering capabilities for enhancing privacy, modifying web page data and HTTP headers, controlling access, and removing ads and other obnoxious Internet junk

Caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. It reduces bandwidth and improves response times by caching and reusing frequently-requested web pages. ([Source Code](https://code.launchpad.net/squid))

Light-weight HTTP/HTTPS proxy daemon. ([Source Code](https://github.com/tinyproxy/tinyproxy))

A HTTP proxy that parses only text, links and pictures from pages reducing internet bandwidth usage, removing ads and heavy scripts. ([Demo](https://txt.dc09.ru), [Source Code](https://github.com/TempoWorks/txtdot))

Manage your home bar while adding your ingredients, searching for cocktails and creating custom cocktail recipes. ([Demo](https://demo.barassistant.app/), [Source Code](https://github.com/karlomikus/bar-assistant))