Open-source alternatives guide · Updated 2026

Best open-source alternatives to June

Compare the best free and open-source alternatives to June — 5 verified projects with explicit catalog relationships. Inspect licenses, GitHub activity, self-hosting signals, and migration fit before you switch.

5verified alternatives
2self-hosted signals
3categories

Only explicit alternative relationships are shown—never inferred competitor claims.

Overview

This guide compares 5 verified open-source alternatives to June, including PostHog, OpenReplay, Countly, and Aptabase.

Projects appear across AI & Machine Learning, Data & Analytics, and Security & Privacy. 2 options include a self-hosting signal — see the self-hosted catalog. Ranking follows public GitHub stars and recorded momentum—not vendor marketing. Compare projects side by side, then confirm license fit, migration effort, and operational ownership before adopting any option.

Strongest repository-activity signal: PostHog · Jump to ranking · 35.6K stars

About June

Proprietary product with documented open-source alternatives cataloged on OpenSourceChoice. Compare licenses, repository activity, and self-hosting options befo

Ranked open-source alternatives to June

Compare capabilities, licensing, and ownership model. Stars help with discovery; they are not a security or product-fit guarantee.

PostHog

Open-source alternative to June

United KingdomAI & Machine LearningLicense not declaredAI-native

🦔 PostHog is an all-in-one developer platform for building successful products. We offer product analytics, web analytics, session replay, error tracking, feature flags, experimentation, surveys, data warehouse, a CDP,

🦔 PostHog is an all-in-one developer platform for building successful products. We offer product analytics, web analytics, session replay, error tracking, feature flags, experimen

Best for: AI product teams
Deployment: Inspectable source
License: License not declared
Activity: Updated 26 hours ago

Key capabilities

OpenReplay

Open-source alternative to June

Data & AnalyticsLicense not declared

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

Session replay, cobrowsing and product analytics you can self-host. Best for reproducing issues and iterating on your product. Review the official repository, license, release acti

Best for: Data teams
Deployment: Inspectable source
License: License not declared
Activity: Updated 29 hours ago

Key capabilities

Countly

Open-source alternative to June

AI & Machine LearningLicense not declaredSelf-hostedAI-native

Countly is a privacy-first, AI-powered analytics and engagement platform for understanding and optimizing customer journeys across digital applications, from desktop and mobile to IoT and connected environments.

Countly is a privacy-first, AI-powered analytics and engagement platform for understanding and optimizing customer journeys across digital applications, from desktop and mobile to

Best for: AI product teams
Deployment: Self-hostable
License: License not declared
Activity: Updated 32 hours ago

Key capabilities

analytics dashboard web-analytics

Aptabase

Open-source alternative to June

Security & PrivacyAGPL-3.0

✨ Open Source, Privacy-First and Simple Analytics for Mobile, Desktop and Web Apps

✨ Open Source, Privacy-First and Simple Analytics for Mobile, Desktop and Web Apps Review the official repository, license, release activity, and deployment documentation before pr

Best for: Security teams
Deployment: Inspectable source
License: AGPL-3.0
Activity: Updated 5 months ago

Key capabilities

Trench

Open-source alternative to June

AI & Machine LearningMITSelf-hostedAI-native

Trench — Open-Source Analytics Infrastructure. A single production-ready Docker image built on ClickHouse, Kafka, and Node.js for tracking events. Easily build product analytics dashboards, LLM RAGs, observability platfo

Trench — Open-Source Analytics Infrastructure. A single production-ready Docker image built on ClickHouse, Kafka, and Node.js for tracking events. Easily build product analytics da

Best for: AI product teams
Deployment: Self-hostable
License: MIT
Activity: Updated 3 months ago

Key capabilities

open-source

llm

analytics

nodejs

How to choose a June alternative

Map must-have capabilitiesList the workflows in June you cannot drop during migration.

Verify the licenseConfirm it fits your use, distribution, and compliance model. Browse license briefs.

Run a proof of conceptTest real data, integrations, clients, and failure modes. Use Compare for side-by-side checks.

Plan ownershipAssess upgrades, backups, support, and an exit path. Read when self-hosting is worth it.

Frequently asked questions about June alternatives

What are the best open-source alternatives to June?

OpenSourceChoice currently lists 5 projects with an explicit alternative relationship to June. Catalog highlights include PostHog, OpenReplay, and Countly. Rankings follow public GitHub stars and recorded momentum—not paid placement. Match capabilities and license fit to your workflow before adopting any option.

Are open-source alternatives to June free?

Most catalogued alternatives publish source under OSI or source-available licenses and are free to inspect. Hosting, commercial support, or cloud model APIs may still cost money. Always read the project license for your use case.

Can I self-host an alternative to June?

2 options in this list carry a self-hosting signal. Confirm the official install guide, backups, upgrades, and hardening steps before production.

How should I evaluate June alternatives?

Map must-have June workflows, verify license and compliance fit, run a proof of concept with real data and integrations, then plan ownership for upgrades, backups, support, and an exit path.