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Top Open Source Projects using Google APIs

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.

16 projects indexedExplore all tech stacks →
OpenSign

OpenSign

NOASSERTION
6,919

A powerful, open-source e-signature solution offering customization, integration, and enhanced security for businesses of all sizes.

OpenSign
JavaScriptTypescriptCSSHTML+24
Mimrai

Mimrai

AGPL-3.0
26

Open source minimalist task management tool with AI companion that filters noise, automates coordination, and guides teams through complexity with calm focus.

Mimrai
TypescriptPythonCSSJavaScript+29
Maxun

Maxun

AGPL-3.0
17,302

Turn any website into structured data using a visual recorder, natural language prompts, or API. Includes proxy rotation, scheduling, and webhook integrations.

Maxun
TypescriptJavaScriptCSSShell+20
Tiledesk

Tiledesk

MIT
14

AI-enhanced live chat platform for seamless customer engagement, featuring chatbots, multichannel support, and advanced analytics.

Tiledesk
TypescriptHTMLSCSSJavaScript+12
Rallly

Rallly

AGPL-3.0
5,225

A user-friendly, open-source tool for coordinating events and meetings without the hassle of back-and-forth emails or messages.

Rallly
TypescriptMDXJavaScriptCSS+34
Postiz

Postiz

AGPL-3.0
35,180

Self-hostable social media scheduler that lets you plan, generate, and publish content across 30+ networks with AI assistance, team collaboration, and automation integrations.

Postiz
TypescriptJavaScriptCSSSCSS+46
OpenObserve

OpenObserve

AGPL-3.0
21,502

Monitor logs, metrics, and traces with an open-source observability platform. Achieve petabyte scale with 140x lower storage costs and high performance.

OpenObserve
TypescriptRustVueJavaScript+20
NocoDB

NocoDB

NOASSERTION
64,752

Convert any database into a no-code platform with spreadsheet interface. Connect PostgreSQL/MySQL or use hosted database. Scale to millions of rows effortlessly.

NocoDB
TypescriptVueJavaScriptPLpgSQL+35
Lightdash

Lightdash

NOASSERTION
6,094

Self-serve analytics platform that transforms dbt models into interactive dashboards, enabling data-driven decisions across organizations.

Lightdash
TypescriptHTMLCSSShell+37
HeyForm

HeyForm

AGPL-3.0
8,951

A versatile form builder for crafting custom surveys, quizzes, and data collection tools with advanced features and integrations.

HeyForm
TypescriptSCSSHTMLJavaScript+27
GrowthBook

GrowthBook

NOASSERTION
8,161

Powerful, developer-friendly experimentation tool for data-driven product decisions. Seamless integration, real-time insights, and flexible deployment.

GrowthBook
TypescriptPythonSCSSJavaScript+37
Cal.com

Cal.com

MIT
47,952

Cal.diy is the community edition of Cal.com for personal self-hosting, with calendar sync, video conferencing, payment support, and a REST API.

Cal.com
TypescriptCSSHTMLPLpgSQL+32
Giselle

Giselle

Apache-2.0
553

Create powerful AI agents using an intuitive node-based interface that connects multiple LLMs and data sources for automated documentation and development workflows.

Giselle
TypescriptJavaScriptCSSPLpgSQL+31
Formbricks

Formbricks

NOASSERTION
12,828

Collect feedback across websites, apps, and emails with targeted surveys, user segmentation, and GDPR-compliant data handling. Self-host or use the cloud.

Formbricks
TypescriptJavaScriptShellCSS+33
Chartbrew

Chartbrew

NOASSERTION
4,047

A powerful, open-source platform for building interactive dashboards and charts from multiple data sources without coding.

Chartbrew
JavaScriptEJSTypescriptCSS+27
0 Finance

0 Finance

MIT
249

CLI-first banking platform for AI agents and autonomous workflows

0 Finance
TypescriptSolidityJavaScriptPython+33