Top Open Source Projects Built With Google APIs in 2026
A curated collection of the 16 best free and open-source projects built using Google APIs. Discover popular repositories, architecture patterns, and trending software in 2026.
OpenSign
Free open-source DocuSign alternative
Stars6,919Last commit16d agoLicenseOpen SourceMimrai
Full-stack engineering & applied AI for rapid product delivery
Stars26Last commit5mo agoLicenseAGPL-3.0Maxun
Turn any website into structured data using a visual recorder, natural language prompts, or API. Includes proxy rotation, scheduling, and webhook integrations.
Stars17,302Last commit12d agoLicenseAGPL-3.0
Tiledesk
Open-source no-code AI chatbot platform
Stars14Last commit12d agoLicenseMIT
Rallly
Free group meeting scheduling without logins
Stars5,225Last commit10d agoLicenseAGPL-3.0Postiz
All-in-one social media scheduling tool
Stars35,180Last commit10d agoLicenseAGPL-3.0
OpenObserve
Open source observability platform for AI era
Stars21,502Last commit10d agoLicenseAGPL-3.0
NocoDB
Open source Airtable alternative
Stars64,752Last commit10d agoLicenseOpen Source
Lightdash
Open-source, code-first BI platform for modern data teams
Stars6,094Last commit10d agoLicenseOpen SourceHeyForm
A versatile form builder for crafting custom surveys, quizzes, and data collection tools with advanced features and integrations.
Stars8,951Last commit19d agoLicenseAGPL-3.0GrowthBook
Powerful, developer-friendly experimentation tool for data-driven product decisions. Seamless integration, real-time insights, and flexible deployment.
Stars8,161Last commit10d agoLicenseOpen Source
Cal.com
Fully customizable scheduling software for meetings
Stars47,952Last commit29d agoLicenseMITGiselle
Visual AI app builder for product teams
Stars553Last commit1mo agoLicenseApache-2.0Formbricks
Open source experience data hub for surveys & feedback
Stars12,828Last commit10d agoLicenseOpen SourceChartbrew
Build live KPI dashboards from databases & APIs
Stars4,047Last commit1mo agoLicenseOpen Source
