Search once across OSI-approved open source, source-available projects, and proprietary products.
Open-source business rules engine with visual DMN editing
GoRules is an open-source business rules engine for modelling decisions as readable rules, tables, and visual flows and executing them via SDKs or a REST API.
Offline open-source Kanban boards for Windows, macOS, and Linux
Kanri is a free, offline Kanban board app for Windows, macOS, and Linux that keeps boards and cards in local JSON files, with Trello import and full-workspace export.
Open-source host, service, and network monitoring with plugins and alerts
Nagios Core is an open-source host, service, and network monitoring program that runs checks through plugins and sends alerts when problems occur.
Localization infrastructure made for fast-paced startups
Languine is an open-source AI localization layer: a CLI and CI pipeline that translates app strings with brand-voice context and returns them as reviewable pull requests.
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.
Open source compliance automation for SOC 2 and ISO 27001
Comp AI is an open source compliance platform that automates evidence collection and audit preparation for SOC 2, ISO 27001, GDPR, and HIPAA.
Open-source headless CMS for technical content
Vrite is an open-source workspace for creating, managing, and delivering technical content such as product documentation, technical blogs, and knowledge bases.
Open-source team and community chat with voice, video, and bots
Mezon is an open-source, AGPL-3.0 community chat platform with clan-based text, voice, and video channels plus bots and apps.
Open-source consent management for React, Next.js, and modern web apps.
c15t is an open-source consent management platform that puts cookie banners, preference centers, and consent-aware script loading inside application code for React, Next.js, and JavaScript apps.
Sub-millisecond vector and full-text search in Rust
SeekStorm is an open-source vector and lexical search engine in Rust, shipped as an in-process library and a multi-tenant server with a REST API.
Open-source feature flags with experimentation for self-hosted teams
FeatBit is a self-hosted, open-source feature-flag platform with built-in experimentation, multi-language SDKs, and an optional managed cloud.
Self-hosted file storage, sync, and collaboration without lock-in
Sync-in is a self-hosted file storage, sharing, and collaboration platform that keeps files readable on your own infrastructure with unified permissions.
Self-hosted platform for versioned container releases
Dyrector is a self-hosted continuous delivery platform that ships versioned container releases to Docker and Kubernetes nodes from one dashboard.
Turn source code into polished, shareable images
Chalk.ist is a free browser editor that turns pasted source code into styled, shareable images for social posts, docs, and slides.
Open-source AI-native CRM/ERP foundation framework for developers
Open Mercato is an open-source, self-hosted CRM/ERP foundation framework in TypeScript that ships defaults developers extend.
Privacy-first open-source analytics for mobile and desktop apps
Aptabase is an open-source analytics platform for mobile, desktop, and web apps that replaces Firebase or Google Analytics with fully anonymous event tracking.
Offline, Git-native API workspace in plain Markdown
Voiden is an offline, Git-native API workspace that keeps requests, tests, notes, and documentation together in plain-text .void files.
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 CRM your AI agents can work in
Relaticle is a self-hosted, open-source CRM that tracks companies, people, deals, tasks, and notes, and lets AI assistants act on that data.
Open-source team email hub with shared inboxes
UnInbox is an open-source communication hub that gives teams shared email inboxes and messaging in one place, available as hosted plans or self-hosted.
Privacy-friendly web analytics with an AI-powered dashboard
Litlyx is a self-hosted, GDPR-compliant web analytics platform with real-time dashboards and AI insights, positioned as a simple alternative to Google Analytics.
Self-hosted observability backend for logs, metrics, and traces
Gigapipe is a self-hosted observability backend that stores logs, metrics, traces, and profiles in ClickHouse and serves Loki, Prometheus, Tempo, and Pyroscope APIs.
Open-source learning platform for employee and customer training
ClassroomIO is an open-source learning platform for building courses, running cohorts, and tracking learner progress for employees, customers, and partners.
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