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Open Source Projects using Tanstack Start

A curated collection of the 15 best open source software using Tanstack Start. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

OpenSEO

Self-hosted SEO platform for keyword, backlink, and rank tracking

  • Stars

    Stars growing quickly over the last 30 days26,424

  • Last commit

    1 day ago

  • License

    MIT
Manage keyword research, backlink analysis, competitor monitoring, and rank tracking without expensive SaaS subscriptions. Self-hostable, MIT-licensed, uses DataForSEO.

Open Source Alternative to:

Semrush

Supabase

Postgres-powered backend platform for production apps

  • Stars

    Stars growing over the last 30 days114,547

  • Last commit

    5 hours ago

  • License

    Apache-2.0
Provides a full backend stack built on Postgres: authentication, auto-generated APIs, edge functions, realtime subscriptions, file storage, and vector search.

Open Source Alternative to:

Firebase

Better Auth

Framework-agnostic authentication for TypeScript applications

  • Stars

    30,598

  • Last commit

    7 hours ago

  • License

    MIT
A comprehensive authentication framework offering email/password, social sign-on, two-factor auth, and multi-tenant support with full TypeScript integration.

Open Source Alternative to:

Auth0

Paseo

AI
Run coding agents from your phone, desktop, or terminal

  • Stars

    Stars growing quickly over the last 30 days23,128

  • Last commit

    5 hours ago

  • License

    Apache-2.0
Self-hosted orchestrator for coding agents like Claude Code, Codex, and Cursor, controlled from phone, desktop, web, or CLI.

Open Source Alternative to:

Claude Code

Fumadocs

Build beautiful documentation sites with Next.js

  • Stars

    13,547

  • Last commit

    18 hours ago

  • License

    MIT
A flexible Next.js framework for creating stunning documentation sites with MDX support, built-in search, and customizable components.

Open Source Alternative to:

Mintlify

Typebot

Create powerful chatbots without coding

  • Stars

    10,605

  • Last commit

    10 days ago

  • License

    Unknown
Design, build, and deploy interactive chatbots with a visual editor. Integrate easily and collect data effortlessly.

Open Source Alternative to:

Manychat

Anarlog

AI
Private meeting notes, no bots, files you own

  • Stars

    Stars growing over the last 30 days9,773

  • Last commit

    6 hours ago

  • License

    MIT
Records system audio without joining your call, then turns rough notes into editable summaries. Audio, transcripts, and notes stay as local files.

Open Source Alternative to:

Granola

Plasmic

Visual app builder that integrates with your existing codebase

  • Stars

    7,148

  • Last commit

    6 hours ago

  • License

    MIT
Open-source visual editor for building websites and web apps. Connect to any data source, design custom UIs, and ship production React code without leaving your stack.

Open Source Alternative to:

Webflow

Open Wearables

Convert wearable data into actionable health insights with open algorithms

  • Stars

    Stars growing over the last 30 days2,759

  • Last commit

    13 hours ago

  • License

    MIT
Self-hosted health intelligence platform with open algorithms, AI reasoning engine, and zero per-user fees. Connect Apple Health, Whoop, Garmin, Oura, and more.

Open Source Alternative to:

Terra API

Conar

AI-powered PostgreSQL management made simple

  • Stars

    1,466

  • Last commit

    14 hours ago

  • License

    AGPL-3.0
Modern PostgreSQL database management with AI-powered filtering, natural language queries, and cloud sync. Focus on your data while AI handles complexity.

Open Source Alternative to:

TablePlus

Elmo

AI
Self-hosted AI visibility tracking for your brand

  • Stars

    Stars growing quickly over the last 30 days568

  • Last commit

    5 hours ago

  • License

    MIT
Tracks how ChatGPT, Gemini, Claude, Perplexity, and other AI engines mention your brand, which competitors appear, and which sources get cited.

Open Source Alternative to:

Otterly.AI

Workbench

Inspect, debug, and replay BullMQ queues visually

  • Stars

    454

  • Last commit

    5 months ago

  • License

    MIT
Desktop app and embeddable dashboard for BullMQ that shows live queue metrics, job runs, FlowProducer graphs, and scheduler status without touching Redis directly.

Open Source Alternative to:

bull-board

Notra

AI
Track your brand's visibility across AI answer engines

  • Stars

    Stars growing over the last 30 days270

  • Last commit

    21 days ago

  • License

    AGPL-3.0
GEO tool that queries ChatGPT, Claude, Gemini, and Perplexity with your buyers' questions, then shows you who gets recommended and how to close the gap.

Open Source Alternative to:

Otterly.AI

OpenPolicy

Generate legal policies directly from TypeScript code

  • Stars

    165

  • Last commit

    22 hours ago

  • License

    Apache-2.0
Open-source policy-as-code framework that lets developers create privacy policies, terms of service, and legal agreements using TypeScript with built-in GDPR/CCPA compliance.

Open Source Alternative to:

iubenda

Sayr

Bridge internal workflows with public collaboration

  • Stars

    31

  • Last commit

    7 hours ago

  • License

    Unknown
Source-available project management platform with dual views - internal team workspace and public portal for user feedback, voting, and progress tracking.

Open Source Alternative to:

Linear
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