Tech stack
121 projects use Python.
Open-source terminal-native AI agent harness from Nous Research
Hermes Agent is Nous Research's open-source terminal-native agent harness that plans and executes supervised tasks on the user's own machine.
Turn any website into clean, model-ready data
Firecrawl handles the unglamorous part of feeding the web to a language model: rendering JavaScript, following pagination, stripping navigation and cookie banners, and returning markdown or structured JSON that a model can actually use.
Build and deploy AI agents and RAG pipelines visually
Dify is where a prompt experiment becomes something a team can operate. Workflows are assembled on a canvas, datasets are indexed and versioned, and every deployment gets an API endpoint with logging and cost tracking attached.
Drag-and-drop builder for agents and RAG pipelines
Langflow turns pipeline construction into a graph you can see. Components are Python underneath, so a flow that outgrows the canvas can be exported and run as code rather than rebuilt.
One chat interface for every model you run or connect
Open WebUI is the front end that turns a local inference server into something a household or a team can actually use. It handles accounts, conversation history, document retrieval, and model switching, and speaks to both local runtimes and hosted APIs.
Let AI agents drive a real browser
Browser Use gives an agent a real browser rather than an HTTP client. It handles the translation between a model's intent and DOM actions, keeps a structured representation of the page in context, and recovers from the usual navigation failures.
Local-first smart home automation with no cloud dependency
Home Assistant runs on a box in your house and talks to devices directly rather than through their manufacturers' servers. That single design decision is why automations keep working when the internet is down, and why a discontinued cloud service does not brick your lights.
Autonomous agents that complete real engineering tasks
OpenHands runs agents that plan and execute multi-step engineering work: reading a repository, editing files, running tests, and iterating until a task is done. Each agent works inside a sandboxed runtime rather than on the host machine.
Open-source web crawler that turns pages into LLM-ready markdown
Crawl4AI is a Python crawler that turns websites into clean markdown and typed JSON for RAG pipelines, AI agents, and data pipelines.
Real-time infrastructure monitoring with per-second metrics and alerts
Netdata is a self-hosted monitoring agent that collects per-second metrics from systems, containers, and applications, with built-in dashboards, alerts, and anomaly detection.
Self-hosted BI platform for exploring data and building dashboards
Apache Superset is a self-hosted business intelligence platform for exploring databases and building interactive dashboards with a visual query builder and SQL Lab.
Open-source investment research terminal with Python-first market data
OpenBB Terminal is an open-source financial terminal for market data, investment research, and analytics, now developed as the Open Data Platform.
Open-source memory layer for AI agents and apps
Mem0 is an open-source memory layer that gives AI agents and apps persistent memory across sessions, with self-hosted and managed platform options.
Open-source AI gateway unifying 100+ LLMs behind one API
LiteLLM is an open-source AI gateway that calls more than 100 large language model providers through one OpenAI-compatible interface.
Open-source ERP and CRM with 40-plus integrated business apps
Odoo is an open-source ERP and CRM whose 40-plus integrated apps cover accounting, inventory, sales, and project work from one database.
Columnar OLAP database for real-time analytics at scale
ClickHouse is a column-oriented OLAP database built for analytical SQL queries over very large datasets, serving real-time dashboards and applications.
Self-hosted OpenAI-compatible runtime for local AI models
LocalAI is a self-hosted runtime that runs AI models locally behind OpenAI-compatible endpoints.
Terminal pair-programming assistant that edits codebases with LLMs
Aider is a terminal-based pair-programming tool that applies LLM-suggested edits directly to files in new or existing codebases.
Self-hosted document management that turns paper scans into a searchable archive
Paperless-ngx is a self-hosted document management system that OCRs scanned paper and office documents into a searchable, tagged online archive.
Open-source Python framework and runtime for building AI agent platforms
Agno is a Python framework and runtime for building agent platforms with memory, knowledge, and tool integrations.
Issue tracking and planning without per-seat pricing
Plane covers the ground between a lightweight tracker and a full project suite: issues, cycles, modules, and roadmaps, with views that suit both engineers and the people asking them for dates.
Self-hosted AI notebook that turns private sources into insights and podcasts
Open Notebook is a self-hosted, MIT-licensed AI research platform that ingests PDFs, links, and videos for private chat, summaries, and podcast generation.
Free open-source ERP for accounting, inventory, and sales
ERPNext is a free, open-source ERP system covering accounting, inventory, sales, purchasing, manufacturing, projects, and HR in one web application.
User-friendly command-line HTTP client for testing APIs
HTTPie is an open-source command-line HTTP client for testing APIs and web services from the terminal. Expressive syntax and colorized output keep requests readable.
Privacy-respecting metasearch engine you can self-host
SearXNG is a free, open source metasearch engine that aggregates results from many search services without tracking or profiling its users.
React SDK and infrastructure for in-app AI copilots and agents
CopilotKit is an open-source framework for adding AI copilots, chatbots, and in-app agents to products.
Open-source AI second brain for notes, agents, and automations
Khoj is a self-hosted AI second brain that answers from personal notes and the web, with custom agents and scheduled automations.
Open-source LLM observability, evals, and prompt management
Langfuse is an open-source platform for tracing, evaluating, and improving LLM applications and AI agents, with prompt management and experiments built in.
Cross-platform, fast, feature-rich, GPU-based terminal emulator
Kitty is a free, open source, GPU-based terminal emulator for Linux and macOS that combines fast rendering with tabs, windows, and multiple layouts in a single app.
Open-source financial terminal for market analytics and research
Fincept Terminal is an open-source financial terminal for market analytics, investment research, and economic data, positioned as a lower-cost alternative to subscription terminals.
Free flashcard app that schedules reviews with spaced repetition
Anki is a free flashcard program that schedules each card for review just before you are likely to forget it, cutting time spent on material you already know.
Open-source vector database for AI search and retrieval
Chroma is an open-source vector database for AI retrieval, storing embeddings with metadata and serving vector, full-text, and regex search in one query.
Full-stack Python platform for building and deploying web apps
Reflex is a full-stack Python platform for building internal tools and customer-facing web apps, with an AI builder, open-source framework, and cloud or on-premises deploy.
Open-source SQL dashboards and data visualization for teams
Redash is an open-source data visualization platform for writing SQL queries, building interactive dashboards, and sharing them with a team.
Open-source team chat with topic threads for focused teamwork
Zulip is an open-source team chat platform that organizes conversations into streams and topics so distributed teams can follow many discussions without losing track.
Self-hosted open-source identity provider for modern SSO
Authentik is a self-hosted, open-source identity provider that adds single sign-on to web apps and services over SAML, OAuth2/OIDC, LDAP, and RADIUS.
Open-source platform for stateful AI agents with memory
Letta is an open-source platform for building stateful AI agents with persistent memory, background jobs, and multi-agent orchestration.
Open-source Python workflow orchestration for resilient data pipelines
Prefect is an open-source workflow orchestration framework that turns Python functions into resilient data pipelines with scheduling, retries, and event triggers.
Open-source headless commerce backend with a GraphQL API
Saleor is an open-source headless commerce backend with a GraphQL-only API and multi-channel catalog control, deployable with Docker or run as managed Cloud.
Open-source AI agents that complete workflows in a real browser
Skyvern is a self-hosted AI platform that completes browser workflows with vision models, with a Playwright-compatible SDK and a managed cloud option.
Open-source RAG assistant that turns docs into chatbots
MaxKB by FIT2CLOUD is an open-source, out-of-the-box RAG assistant that turns documents into a question-answering chatbot with AI workflows and agents. Teams ingest documents and online docs into knowledge bases, connect local or hosted language models, and publish assistants to websites or APIs from a Docker self-hosted deployment.
Self-hosted ELT platform that moves data from APIs and databases into warehouses and lakes
Airbyte is a self-hosted ELT platform that moves data from APIs, databases, and files into warehouses, lakes, and AI applications through prebuilt connectors.
Open-source WebRTC stack for voice, video, and AI agents
LiveKit is an Apache-2.0 WebRTC platform with SDKs, SIP telephony, and a managed cloud for building real-time voice, video, and AI agent experiences.
Free open-source media center for organizing and playing your own library
Kodi is a free and open-source media center that organizes a household's own movies, shows, music, and photos into one browsable library and plays them across TV, desktop, and mobile devices.
Open-source semantic layer for AI, BI, and embedded analytics
Cube Core is a self-hosted semantic layer that defines metrics and access rules once, then serves BI tools, apps, and AI agents over SQL, REST, and GraphQL.
Open source coding agent that fixes GitHub issues with LLMs
SWE-agent is an open source coding agent that turns a GitHub issue into a tested fix by letting a language model use shell, editor, and search tools in a sandbox.
Open-source framework for building and running crypto trading bots
Hummingbot is a free open-source framework for building and running crypto trading bots, with a no-code dashboard and Python scripting for custom strategies.
Free open-source time tracker with local-first activity records
ActivityWatch is a free open-source time tracker that records app, window, and website use on Windows, macOS, Linux, and Android.
A control layer for customer-facing AI agents
Parlant addresses the problem that stops most support agents from shipping: a model that is helpful ninety-five percent of the time is not safe to put in front of customers. It manages behaviour through explicit, context-matched guidelines rather than one long prompt.
Open-source workflow engine and internal-app platform for code-first teams
Windmill is an open-source developer platform for turning scripts into scheduled workflows, webhooks, and internal apps.
Open-source personal assistant that lives on your server
Leon is an open-source personal assistant that runs on your own server and carries out tasks through voice or text, with optional fully offline operation for privacy.
Unified open-source object, block, and file storage for clusters
Ceph is a distributed storage system that serves object, block, and file storage from a single cluster built on commodity hardware.
Free and open-source machine translation API you can self-host.
LibreTranslate is a free, open-source machine translation API powered by Argos Translate that runs on your own server instead of a third-party cloud.
Air-gapped open-source NotebookLM alternative for private documents
SurfSense is a free, open-source desktop AI agent that researches, edits, and transforms documents on your own machine, with no account and no uploads.
Open-source AI cowork desktop with single-agent and multi-agent workforce modes
Eigent is an open-source desktop app where AI agents work beside you on research, writing, coding, and file tasks across macOS, Windows, and Linux.
Isolated Linux sandboxes for running AI agent code
E2B is an open-source cloud that gives each AI agent session its own isolated Linux microVM for running generated code, using tools, and working with files.
Open-source AIOps for alert correlation, deduplication, and automated remediation
Keep is an open-source AIOps platform that aggregates alerts from 90+ providers, deduplicates them with AI, and automates remediation via YAML or visual workflows.
Spreadsheet UI over a relational database you can self-host
Grist is a spreadsheet with a relational database underneath: columns link records across tables, and formulas run in Python. Teams browse the same data as grids, cards, calendars, or charts.
Open-source data quality tests and docs for pipelines
Great Expectations is an Apache-2.0 licensed Python framework for testing data quality with Expectations, Checkpoints, and auto-generated Data Docs.
Open-source tracing, evals, and prompt tools for LLM apps
Arize Phoenix is a self-hosted observability platform for LLM apps with tracing, evaluations, datasets, and a prompt playground.
Incremental data pipelines that keep AI indexes and RAG context fresh
CocoIndex is a Python framework for building incremental data pipelines that keep search indexes and RAG context in sync with changing sources.
Self-hosted minimalist bookmark manager with archiving
Linkding is a self-hosted, open-source bookmark manager that saves links with automatic metadata, organizes them with tags, and archives copies.
Open-source meta-harness unifying AI coding agents
Omnigent is an Apache-2.0-licensed open-source meta-harness that orchestrates Claude Code, Codex, Cursor, Pi, and custom agents from one workspace.
Open-source cron job monitoring with dead-man's-switch alerts
Healthchecks is an open-source cron job monitor: each job gets a unique ping URL, and Healthchecks alerts you when a job misses its schedule. Hosted service covers 20 jobs free; the BSD-3-Clause codebase self-hosts on Python, Django, and PostgreSQL or MySQL.
Open-source billing platform and merchant of record for SaaS
Polar is an open-source billing platform and merchant of record for digital products and SaaS, combining usage billing, subscriptions, and global tax handling.
Rust warehouse for SQL analytics, search, and AI on object storage
Databend is a self-hosted cloud-native warehouse that runs SQL analytics, full-text search, and vector search in one Rust engine on object storage.
Open-source fullstack monitoring with replay, errors, logs, and traces
Highlight is an open-source fullstack monitoring platform with session replay, error monitoring, logging, and tracing, plus a Docker self-hosting path.
Open-source database for AI data, vectors, and agent memory
Activeloop is an open-source database for AI data that stores text, images, video, and embeddings with vector search and dataset versioning.
Self-hosted LLM gateway with one OpenAI-compatible API
Bifrost is a self-hosted gateway that puts every large language model call behind one OpenAI-compatible API. An application points its existing OpenAI client at the gateway, and Bifrost routes the request to whichever provider is configured, so switching models or spreading load across providers is a configuration change rather than a rewrite.
Open-source OpenTelemetry instrumentation for LLM applications
OpenLLMetry is an open-source observability library that instruments LLM applications with OpenTelemetry traces covering model calls, tool use, and retrieval steps.
Disk cleaner that frees space and shreds leftover traces
BleachBit clears unneeded files from a Windows or Linux machine and wipes the traces left behind by browsers, installers, and everyday applications. One run covers cache, logs, temporary files, and cookies across thousands of supported programs.
Open-source crypto trading bot with automated strategies
OctoBot is an open-source crypto trading bot that automates TradingView, AI and technical strategies across spot and futures markets, self-hosted or in the cloud.
Free open-source video editor for Linux, Mac, and Windows
OpenShot is a free open-source video editor from OpenShot Studios for simple timeline edits with effects, titles, and color tools on Linux, Mac, and Windows.
Self-hosted continuous localization with tight Git integration
Weblate is a self-hosted localization platform that syncs translations with Git repositories, also available as a hosted service.
Durable step functions for event-driven apps and AI agents
Inngest is a durable execution platform for event-driven apps: SDK step functions with checkpoints, retries, and waits run on serverless or your own servers.
No-code database and application builder you can host
Baserow is a spreadsheet-shaped database with the API and permission model of a real backend underneath. Non-technical colleagues get grid, gallery, kanban, and calendar views; engineers get a REST API and webhooks over the same data.
Spreadsheet-like interface for Postgres data
Mathesar is an open-source, spreadsheet-like interface that works directly with PostgreSQL.
Open-source agent observability, evals, and AI governance
LangWatch is an open-source observability and evaluation platform for AI platform teams, covering LLM operations, coding-assistant usage, AI gateway routing, and AI governance in one place.
Open-source platform connecting AI agents to 600+ tools via MCP
ACI.dev is an open-source tool-calling platform that connects AI agents to 600+ applications through direct function calls or a unified MCP server.
Open-source workspace for building and running AI agents
Agenta is an open-source workspace for building and running AI agents through chat, with scheduling, approvals, versioning, and tracing.
Self-hosted git-push deploy platform with zero-downtime releases
/dev/push is a self-hosted deployment platform that ships apps straight from GitHub on every push, with zero-downtime releases and live logs.
In-memory graph database for real-time analytics and AI
Memgraph is an in-memory graph database that runs Cypher queries and streaming analytics over live connected data for fraud detection, recommendations, and agent memory.
AI-native observability from the Pydantic team, joining LLM calls with telemetry
Logfire is Pydantic's AI-native observability platform for debugging AI applications in production, built on OpenTelemetry so one timeline covers agent model calls, tools, services, databases, and hosts.
Open-source spreadsheet engine and workbook editor
IronCalc is an open-source, MIT-licensed spreadsheet stack: a Rust engine with 200+ functions plus a browser app for .xlsx workbooks you can embed or self-host.
Open-source security automation platform for teams and AI agents
Tracecat is an open-source security automation platform for teams and AI agents that combines agents, case management, and workflows in one self-hostable system.
Open-source workplace AI search across company tools
PipesHub is a self-hosted, Apache-2.0 workplace AI platform with permission-aware search and cited answers across 50+ connected work systems.
Open-source CRM that tracks leads, deals, and follow-ups
Frappe CRM is a free, self-hosted CRM for sales teams to track leads, manage deals, and follow up on customer conversations.
Free self-hosted digital signage for Raspberry Pi and PCs
Anthias is a free, self-hosted digital signage platform that turns a Raspberry Pi or PC into a display player for images, videos, and web pages.
Open-source helpdesk with ticketing, SLAs, and unlimited agents
Frappe Helpdesk is an open-source ticketing system that pulls email, form, and portal requests into one shared queue with SLA tracking and assignment rules.
Open-source tracing, evals, and observability for AI agents
Laminar is an open-source observability platform purpose-built for AI agents, with OpenTelemetry-native tracing, evaluations, and behavior monitoring built in.
Self-hostable online office suite built on LibreOffice technology.
Collabora Online is a self-hostable browser-based office suite for documents, spreadsheets, and presentations.
Open-source cloud platform for private clouds, VMs, and bare metal
OpenStack is a free, open-source cloud operating system that turns datacenter pools of compute, storage, and networking into API-driven private cloud infrastructure.
Self-hosted Linux hosting panel for websites, databases, and Docker
aaPanel is a self-hosted hosting control panel that manages Linux servers, websites, databases, and containers through a browser interface.
Federated AI search across your apps with cited answers and no data copying
Swirl is a self-hosted federated AI search tool that queries workplace apps live, ranks the combined results, and returns cited answers without copying data.
Collaborative data notebook mixing Python, SQL, AI help, and live sharing
Deepnote is a collaborative data notebook that mixes Python, SQL, and chart blocks with live connections to warehouses and databases in one cloud workspace.
Debian-based server OS for self-hosting apps and email
YunoHost is a Debian-based server operating system for self-hosting web apps, email, and user accounts without expert administration.
Federated book tracking and social reading without the ad platform
BookWyrm is a federated social reading platform: readers track what they are reading, write reviews, and follow friends across independently run instances.
dbt-native data observability with tests, lineage, and alerts
Elementary Data is a dbt-native data observability tool that monitors tables with tests, anomaly detection, lineage, and alerts.
Open-source visual website builder for fast, responsive sites
Frappe Builder is a self-hosted, low-code website builder that turns drag-and-drop designs into fast, responsive pages with one-click publishing.
Open-source orchestration for AI workloads across any GPU cloud
dstack is an open-source orchestrator for AI training and inference on GPUs across clouds. Teams declare resources in YAML, and dstack provisions matching capacity.
Error tracking that speaks the Sentry protocol
GlitchTip accepts events from the official Sentry SDKs, which means adopting it is a DSN change rather than an instrumentation project. Stack traces, breadcrumbs, releases, and issue grouping all work as expected.
Self-hosted error tracking that works with Sentry SDKs
Bugsink is a self-hosted error tracker that collects exceptions from running apps and shows them in one place with stack traces and context.
Open-source framework for portable cloud backends with infrastructure from code
Nitric is an open-source cloud framework that lets developers define APIs, queues, storage, and scheduled jobs directly in application code and deploy the same backend to AWS, Google Cloud, or Azure without lock-in.
Serverless GPUs with fast cold starts for AI workloads
Beam is a serverless GPU platform for running AI inference, sandboxes, and background jobs without managing infrastructure. Functions deploy from a Python decorator, and the platform keeps idle containers warm so repeat calls skip the cold start.
Self-hosted SERP API returning Google, Bing, and Yandex results as JSON
OpenSERP is a self-hosted, MIT-licensed SERP API that returns Google, Bing, Yandex, and other engine results as structured JSON for AI agents and SEO tools.
Open-core AI code-review agent that enforces your rules on every pull request
Kodus is an open-core AI code-review agent whose reviewer, Kody, comments on pull requests across GitHub, GitLab, Bitbucket, Azure DevOps, and Forgejo or Gitea, enforcing plain-language Kody Rules and business context synced from tools such as Jira, Linear, and Notion.
Free open-source HRMS with payroll, attendance, and recruitment
Horilla is a free, open-source HRMS for attendance, payroll, leave, recruitment, and performance, self-hosted free or in the cloud.
Open-source AI testing agent for zero-code UI, API, and security validation
Hercules is an open-source AI testing agent from TestZeus that runs UI, API, security, accessibility, and visual checks from plain Gherkin scenarios.
Self-hosted BI with visual queries and live dashboards
Frappe Insights is a self-hosted business intelligence tool that connects MySQL, PostgreSQL, DuckDB, and BigQuery, turning tables into charts and dashboards without writing SQL.
Open-source secrets and environment management for engineering teams
Phase is an open-source, end-to-end encrypted platform for managing secrets and environment variables from development to production.
Run container jobs where your data already lives
Bacalhau schedules container and WebAssembly jobs onto the machines that already hold the input data, so large datasets are processed in place instead of being copied to a central cluster first. A single self-contained binary acts as client, orchestrator, and compute node, with storage integrations for S3, HTTP, IPFS, and local volumes.
Open-source chat and AI-agent SDKs for web and mobile apps
Ethora is an open-source chat and AI-agent platform with SDKs that add messaging, chatbots, and RAG search to web and mobile apps.
Self-hosted file sync and sharing with a fast, lightweight sync engine
Seafile is a self-hosted file sync and share platform where synced libraries, desktop and mobile clients, and Community or Professional editions keep files under operator control.
Self-hosted experiment tracking and observability for ML teams
mlop is a self-hosted platform for tracking, visualizing, and comparing machine learning experiments, with live training metrics, dataset versioning, and a web dashboard.
Open-source AI governance platform for audits and regulatory compliance
VerifyWise is a source-available AI governance platform that automates risk management, evidence collection, and audit readiness for the EU AI Act, ISO/IEC 42001, ISO 27001, and NIST AI RMF.
Decentralized fiber network cutting latency for validators and RPC nodes
DoubleZero is a decentralized fiber network that gives distributed systems such as Solana validators low-latency, high-bandwidth connectivity.
Free open-source accounting software for small business servers
Frappe Books is free, open-source accounting software that small businesses and freelancers install on their own server and use in a web browser.
Ask questions across document sets and get cited answers
Corpus turns piles of PDFs and web pages into something a team can interrogate.
Open-source LLM observability with request logging, cost tracking, and agent tracing
Spanlens is an MIT-licensed observability platform for OpenAI, Anthropic, and Gemini workloads with request logging, cost tracking, and agent tracing, added with a one-line change or a drop-in proxy.
Run batch tasks on shared provider machines, or earn by sharing yours
Golem is a peer-to-peer network where requestors run batch tasks on machines shared by providers, paying per use in the GLM token. Tasks execute inside provider-hosted environments such as VM images, as a single task or as many parallel tasks spread across providers.
Open-source, OpenAI-compatible LLM gateway with cost and latency tracking
LLM Gateway is an open-source gateway that puts OpenAI, Anthropic, and Gemini calls behind one OpenAI-compatible API. An application keeps its existing OpenAI client and points it at the gateway, so switching providers or spreading load across them is a configuration change rather than a rewrite.