Search once across OSI-approved open source, source-available projects, and proprietary products.
Open-source no-code platform that turns websites into structured APIs
Maxun is an open-source web data platform that turns websites into structured APIs through no-code robots, full-site crawling, search, change monitoring, and agent-ready SDKs.
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.
Fast single-binary static site generator with Sass, feeds, and search
Zola is a static site generator in a single Rust binary that turns Markdown, Tera templates, and Sass into blogs, docs, and landing pages with feeds and search built in.
Open-source time-series database for fast SQL analytics
QuestDB is an open-source time-series database that ingests millions of rows per second and queries them with extended SQL over open formats.
SQLite-compatible edge database platform built on libSQL
Turso is a SQLite-compatible database platform built on libSQL that replicates data to the edge for fast local reads, with embedded replicas, branching, and managed cloud hosting.
Open-source API gateway for routing, security, and AI traffic
Apache APISIX is a self-hosted, open-source API gateway that routes traffic to upstream services with authentication, rate limiting, and observability.
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.
Collaborative wiki with real-time editing and diagrams
Docmost is a documentation workspace with real-time collaborative editing, nested spaces, and diagram support built in rather than embedded from elsewhere.
Self-hostable collaborative text editor with real-time co-editing
Docs is a self-hostable collaborative text editor with real-time co-editing, sub-docs, and version history for team knowledge.
Open-source AI-native vector database for search and RAG
Weaviate is an open-source vector database for AI search, combining vector, keyword, and hybrid retrieval with self-hosted Docker or managed cloud deployment.
Self-hosted cloud development environments and governed AI coding agents
Coder is a self-hosted platform for running cloud development environments and AI coding agents on infrastructure you control.
Open-source background jobs and durable AI workflows for TypeScript
Trigger.dev is an open-source platform for building durable AI agents and background workflows in TypeScript, with retries, queues, and observability.
Free, open-source forum software with a rich extension ecosystem
Flarum is a free, MIT-licensed forum platform you install on your own PHP server and shape with community-built extensions.
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 project management with Gantt charts and agile boards
OpenProject is a GPL-licensed, open-source project management platform for classic, agile, or hybrid teams, with Gantt scheduling, boards, issue tracking, and time reporting.
Free offline grammar checker that keeps writing on your device
Harper is a free, open-source grammar checker that runs entirely on your device, catching spelling and grammar mistakes across editors and browsers without sending text to a server.
Open-source API client and docs generated from OpenAPI
Scalar is an open-source API platform with an offline-first API client and interactive documentation rendered from the same OpenAPI document.
Run your own mail server and email marketing from one dashboard
BillionMail combines a mail server with newsletter and campaign tooling in one self-hosted package. One Docker Compose file brings up the web console plus mail transfer, mailbox, spam-filtering, database, and cache services, so a team can send and receive mail and run bulk campaigns from infrastructure it controls.
Self-hosted headless commerce with a REST API and Next.js storefront
Spree Commerce is an open-source headless ecommerce platform with a REST API, TypeScript SDK, and Next.js storefront covering B2B, marketplace, and cross-border stores.
Open-source Q&A software for community forums and help centers
Apache Answer is a self-hosted, open-source Q&A platform for running community forums, help centers, and team knowledge bases.
Visual database that turns tables into collaborative apps and automations
AITable is a self-hosted visual database that pairs a spreadsheet interface with grid, gallery, kanban, calendar, and Gantt views plus a REST API.
Free open-source research assistant that collects, cites, and shares sources
Zotero is a free, open-source research assistant that collects, organizes, cites, and shares research sources across desktop, mobile, and the web.
Privacy-first offline maps with hiking, cycling, and driving navigation.
Organic Maps is a free offline maps and navigation app for hikers, cyclists, drivers, and travelers who want guidance without mobile data.
The proprietary products most often replaced by something in this directory.
Notion
Notion Labs
Documents, databases, and project tracking in one workspace
13 open source alternatives
Google Analytics
Web and product analytics tied to Google's ad stack
12 open source alternatives
Datadog
Datadog
Infrastructure monitoring, logs, and tracing in one platform
10 open source alternatives
Dropbox
Dropbox
File sync and sharing across devices and teams
10 open source alternatives
Slack
Salesforce
Channel based team messaging with a large integration ecosystem
10 open source alternatives
Auth0
Okta
Hosted identity covering login, SSO, and multi-factor
9 open source alternatives
Where the directory is growing fastest this month.
Running and talking to language models, on your own hardware or someone else's.
32 products+14.2%
Frameworks and runtimes for building, orchestrating, and supervising autonomous agents.
73 products+12.4%
Assistants that read a codebase and carry out engineering work from natural language instructions.
26 products+11%
Utilities that sit in the daily loop of writing, testing, and shipping software.
292 products+7.2%
Tools that connect applications and run multi step processes without manual work.
57 products+6.4%
Metrics, logs, traces, and error reporting for systems in production.
60 products+6.1%
774 results