Awesome Oss Alternatives

The Open Source DocuSign Alternative.

Open source alternative to Auth0 / Firebase Auth / AWS Cognito

ZITADEL - Identity infrastructure, simplified for you.

A fully open source & end-to-end encrypted note taking alternative to Evernote.

Open-source feature management platform

TinaCMS is the leading open-source headless CMS that supports Markdown and Visual Editing. Your content is stored in your own GitHub repo 🦙 ❤️

The developer platform for on-demand cloud development environments to create software faster and more securely.

A glossy Matrix collaboration client for the web.

Open Source Qualtrics Alternative

Session replay, cobrowsing and product analytics you can self-host. Best for reproducing issues and iterating on your product.

Low-code platform allows you to build business apps, enables you to quickly create internal tools such as dashboard, crud app, admin panel, crm, cms, etc. Supports PostgreSQL, MySQL, Supabase, GraphQL, MongoDB, MSSQL, Rest API, Hugging Face, Redis, etc. Automate workflows with schedule or webhook. Open source Retool.

Cloud-native OSS search engine for observability

YugabyteDB - the cloud native distributed SQL database for mission-critical applications.

The Open Source Firebase Alternative with GraphQL.

🫖 Status page with uptime monitoring & API monitoring as code 🫖

Blazing-fast remote access

Modern authentication, on your terms. Open source alternative to Auth0, Clerk, WorkOS, Stytch.

Visual Development for React, Vue, Svelte, Qwik, and more

Open-source headless commerce platform built with TypeScript, NestJS, React, and GraphQL

Open Source Feature Flags, Experimentation, and Product Analytics

Free and open log management

🚀 The open-source alternative to Twilio.

Open-source, self-hosted CMS platform on AWS serverless (Lambda, DynamoDB, S3). TypeScript framework with multi-tenancy, lifecycle hooks, GraphQL API, and AI-assisted development via MCP server. Built for developers at large organizations.

The personal knowledge management (PKM) tool that grows as you do!

Connect Your Agents And Harnesses With Any Provider 🦚

Visual builder for React. Build apps, websites, and content. Integrate with your codebase.

Business intelligence as code: build fast, interactive data visualizations in SQL and markdown

Low-code backend platform. Manage database on spreadsheet-like UI and build cloud functions workflows in JS/TS, all in your browser.

Flagsmith is an open-source feature flag platform with remote config, experimentation, and self-hosted or cloud deployment options.

Athens is no longer maintainted. Athens was an open-source, collaborative knowledge graph, backed by YC W21

Agentic BI. Analytics at the speed of code ⚡️

Passbolt Community Edition (CE) API. The JSON API for the open source password manager for teams!

Open-source live customer chat

Policy and data administration, distribution, and real-time updates on top of Policy Agents (OPA, Cedar, ...)

npm for design engineers: largest marketplace of shadcn/ui-based React Tailwind components, blocks and hooks

Open Source Cloud Native Application Protection Platform (CNAPP)

Jitsu is an open-source Segment alternative. Fully-scriptable data ingestion engine for modern data teams. Set-up a real-time data pipeline in minutes, not days

Search UI components for React and Vue

The form framework for coding agents

Open source APM: OpenTelemetry traces, metrics, and logs

Build data pipelines, the easy way 🛠️

Developer & translator friendly web-based localization platform

Boost Note is a document driven project management tool that maximizes remote DevOps team velocity.

🔥 LimeSurvey – A powerful, open-source survey platform. A free alternative to SurveyMonkey, Typeform, Qualtrics, and Google Forms, making it simple to create online surveys and forms with unmatched flexibility.

A full featured Live Chat, Support & Marketing platform, alternative to Intercom, Drift, Crisp.

An open source issue management & help desk solution. A zendesk & jira alternative

Build apps that AI can generate, humans can review, and teams can maintain. Config that works between code and natural language.

Vanilla is a powerfully simple discussion forum you can easily customize to make as unique as your community.

Developer-first OpenSource API DevTool, Postman/Insomnia alternative.

A Form and Data Management Platform for Progressive Web Applications.