Browse Latest Open Source Tools & Software
The newest open source tools and software added to OpenAlternative, sorted by publish date. Discover what's fresh in the open source world.
Enterprise monitoring for networks, apps, and infrastructure
Stars
6,313Last commit
14 hours agoLicense
AGPL-3.0
Monitors networks, servers, cloud services, IoT, and OT environments with no per-device licensing fees, available self-hosted or as a managed SaaS platform.
Open Source Alternative to:
Collect, transform, and route logs and metrics in one tool
Stars
22,458Last commit
10 hours agoLicense
MPL-2.0
Rust-built observability pipeline tool that collects, transforms, and routes logs and metrics across 47 sources and 62 sinks with no runtime dependencies.
Open Source Alternative to:
Enterprise file sync, share, and collaboration platform
Stars
2,105Last commit
17 hours agoLicense
Apache-2.0
Self-hostable file platform for enterprises needing data sovereignty, real-time document collaboration, and compliance with GDPR, HIPAA, and other regulations.
Open Source Alternative to:
Parallel AI agent workspaces with Git and project context
Stars
1,201Last commit
2 days agoLicense
Apache-2.0
Run multiple AI coding agents in isolated Git worktrees, with cross-repo context, GitHub/Linear integrations, and support for Claude, Codex, Cursor, and more.
Open Source Alternative to:
Simulation-based testing and evaluation for AI agents
Stars
3,511Last commit
10 hours agoLicense
Apache-2.0
Tests AI agents through multi-turn simulations, LLM-based scoring, and production tracing so teams can ship reliable agents with confidence.
Open Source Alternative to:
Run coding agents from your phone, desktop, or terminal
Stars
15,135Last commit
12 hours agoLicense
AGPL-3.0
Self-hosted orchestrator for coding agents like Claude Code, Codex, and Cursor, controlled from phone, desktop, web, or CLI.
Open Source Alternative to:
Business rules engine with AI, visual flows, and audit trails
Stars
1,945Last commit
2 days agoLicense
MIT
Model business logic in decision tables, visual flows, and natural-language rules. Change rules without deploys, test every path, and run the same engine anywhere.
Open Source Alternative to:
Org chart, budgets, and governance for AI agent teams
Stars
79,418Last commit
10 hours agoLicense
MIT
Manages teams of AI agents across business functions with org charts, goal alignment, cost tracking, ticket tracing, and board-level governance controls.
Open Source Alternative to:
Self-hosted AI agents that do real work on your machine
Stars
1,338Last commit
10 hours agoLicense
Apache-2.0
Run persistent AI bots that sign into your tools, complete tasks autonomously, and ask for approval when needed. Your keys, your model, your infrastructure.
Open Source Alternative to:
Mac cleaner, app manager, and system monitor in one
Stars
65,025Last commit
1 day agoLicense
GPL-3.0
Native macOS app that cleans caches, uninstalls apps with leftovers, maps disk usage, and shows live system metrics. One-time purchase, lifetime updates.
Open Source Alternative to:
Auto-generated network diagrams that stay current
Stars
5,539Last commit
16 hours agoLicense
AGPL-3.0
Discovers your network via SNMP, LLDP, and ARP, then builds and maintains L2/L3 topology diagrams, host inventories, and service dependency maps automatically.
Open Source Alternative to:
Get alerted when cron jobs and scheduled tasks miss their run
Stars
10,287Last commit
5 days agoLicense
BSD-3-Clause
Monitors cron jobs, background workers, and scheduled tasks by expecting periodic HTTP pings and alerting you when they stop arriving on time.
Open Source Alternative to:
Personal AI agent for messaging apps, containerized
Stars
30,625Last commit
12 hours agoLicense
MIT
Self-hosted AI agent that connects to WhatsApp, Telegram, Slack, and a dozen more messaging apps, running each agent in an isolated Docker container with credential injection via a secure vault.
Open Source Alternative to:
Private AI chat with zero-access encryption
Stars
5,562Last commit
12 hours agoLicense
GPL-3.0
AI chat assistant from Proton that stores conversations with zero-access encryption, never logs chats, and never uses your data to train models.
Open Source Alternative to:
AWS-compatible cloud APIs on infrastructure you control
Stars
89Last commit
14 hours agoLicense
AGPL-3.0
Spinifex recreates EC2, S3, EBS, VPC, IAM, and more on your own hardware, so AWS-built software runs unchanged without touching a hyperscaler.
Open Source Alternative to:
OpenTelemetry observability with traces, logs, and metrics
Stars
1,727Last commit
11 hours agoLicense
Unknown
Observability platform built on OpenTelemetry and ClickHouse. Collect, visualize, and query distributed traces, logs, and metrics, with an MCP server for AI agent diagnostics.
Open Source Alternative to:
Desktop multi-agent workforce for automating real tasks
Stars
15,125Last commit
20 hours agoLicense
Apache-2.0
Self-hostable desktop app that runs a coordinated team of AI agents to browse the web, manage files, execute terminal commands, and complete complex workflows.
Open Source Alternative to:
Self-hosted visual bug reporting with screenshot annotation
Stars
30Last commit
4 days agoLicense
AGPL-3.0
Embeds a lightweight widget into web apps so users can capture screenshots, annotate issues, and submit reports with console logs and browser metadata included.
Open Source Alternative to:
Self-hosted home automation without the cloud
Stars
3,156Last commit
12 hours agoLicense
Apache-2.0
Privacy-first home automation platform that runs locally on your hardware, supports Zigbee, Matter, and MQTT, and lets you automate your home without coding.
Open Source Alternative to:
Firefox fork hardened for privacy, security, and freedom
Stars
1,307Last commit
21 hours agoLicense
Unknown
A Firefox-based browser that strips telemetry, blocks trackers, disables DRM, and ships with a content blocker out of the box.
Open Source Alternative to:
Full-text search API with real-time indexing and crawling
Stars
1,908Last commit
4 days agoLicense
Apache-2.0
Cloud search API and crawler service supporting billions of documents, real-time indexing, autocomplete, faceted filtering, and multi-language text across any application.
Open Source Alternative to:
Privacy-first browser built for power users
Stars
6,196Last commit
12 hours agoLicense
Unknown
Firefox-based browser with built-in ad blocking, oblivious DNS, zero telemetry, tree-style tabs, and no AI features sending your data anywhere.
Open Source Alternative to:
Time-series database built for industrial IoT workloads
Stars
6,382Last commit
12 hours agoLicense
Apache-2.0
Apache IoTDB manages industrial IoT time-series data with high-throughput read/write, edge-cloud sync, ultra-high compression, and integrations with Hadoop, Spark, Flink, and Grafana.
Open Source Alternative to:
An agentic CRM that keeps records current automatically
Stars
8,956Last commit
6 days agoLicense
MIT
Open source CRM with AI agents that read your inbox, enrich contacts and companies, schedule follow-ups, and build new agents from plain-language descriptions.
Open Source Alternative to:
Real-time analytics database for sub-second OLAP queries
Stars
14,045Last commit
1 day agoLicense
Apache-2.0
Columnar, time-indexed analytics database built for streaming and batch data at scale, handling billions to trillions of rows with millisecond query response times.
Open Source Alternative to:
Run open-source AI models privately on your own device
Stars
77,396Last commit
1 year agoLicense
MIT
GPT4All runs open-source language models locally on Windows, macOS, and Linux with no cloud dependency, keeping your data on your machine.
Open Source Alternative to:
High-performance time series database for metrics and logs
Stars
17,596Last commit
12 hours agoLicense
Apache-2.0
Time series database and monitoring platform compatible with Prometheus, handling billions of metrics with lower resource usage than most alternatives.
Open Source Alternative to:
Run LLMs locally with minimal setup, maximum hardware support
Stars
125,772Last commit
10 hours agoLicense
MIT
C/C++ inference engine for large language models, supporting quantization, multi-GPU, Apple Silicon, and an OpenAI-compatible server across a wide range of hardware.
Open Source Alternative to:
A self-building CRM powered by your email
Stars
4,049Last commit
10 hours agoLicense
AGPL-3.0
Automatically creates and enriches contacts, companies, and deal threads from your team's email. No data entry, no imports, no admin overhead.
Open Source Alternative to:
Open source metrics collection, storage, and alerting
Stars
65,837Last commit
12 hours agoLicense
Apache-2.0
Pull-based monitoring system with a multi-dimensional data model, PromQL query language, built-in alerting, and a time series database built for cloud native environments.
Open Source Alternative to:
Self-hosted AI runtime for text, voice, vision, and agents
Stars
48,695Last commit
12 hours agoLicense
MIT
Run LLMs, speech, image generation, and autonomous agents on your own hardware with an OpenAI-compatible API and 60+ swappable backends.
Open Source Alternative to:
Distributed OLAP database for real-time analytics at scale
Stars
6,128Last commit
11 hours agoLicense
Apache-2.0
Sub-second SQL queries on fresh streaming data at petabyte scale, built for high-concurrency user-facing apps and AI agent backends.
Open Source Alternative to:
LLM observability: cost, latency, and traces in one place
Stars
12Last commit
3 days agoLicense
MIT
Drop-in observability platform for OpenAI, Anthropic, and Gemini that logs every request, tracks costs, traces agent workflows, and flags anomalies and PII.
Open Source Alternative to:
S3-compatible object storage built with Swift
Stars
517Last commit
8 days agoLicense
Apache-2.0
Self-hostable, Apache 2.0-licensed object storage with S3 compatibility, a built-in web console, and horizontal scaling from single node to sharded cluster.
Open Source Alternative to:
Run open-source LLMs locally on your own machine
Stars
179,502Last commit
10 hours agoLicense
MIT
Runs open-source language models locally with a simple setup, plus optional cloud access for larger models when local hardware isn't enough.
Open Source Alternative to:
Task management with GitHub sync and AI agents for devs
Stars
4,049Last commit
10 hours agoLicense
AGPL-3.0
Task manager built for engineering teams, combining status tracking, priority management, GitHub integration, and AI agents that can close tasks automatically.
Open Source Alternative to:
Keyboard-first email client with AI, chat, and tasks
Stars
4,049Last commit
10 hours agoLicense
AGPL-3.0
An AI-powered email client that combines inbox management, chat, tasks, and AI agents in one shared workspace, built for keyboard-driven workflows.
Open Source Alternative to:
Markdown docs wired into tasks, email, and agents
Stars
4,049Last commit
10 hours agoLicense
AGPL-3.0
Collaborative markdown documents with real-time CRDT editing, AI agent cursors, mention linking, and built-in properties tied to your tasks, channels, and email.
Open Source Alternative to:
Persistent cloud VMs that hibernate and wake in seconds
Stars
496Last commit
1 day agoLicense
Apache-2.0
Provides always-on virtual machines for AI agents with full OS access, persistent state, elastic CPU/memory resizing, and instant checkpoints.
Open Source Alternative to:
Team chat with email, tasks, and docs in one workspace
Stars
4,049Last commit
10 hours agoLicense
AGPL-3.0
Team chat app with inline threads, mention-based sharing, a unified inbox for chat and email, and an AI agent that works across your full workspace.
Open Source Alternative to:
Team chat, project management, and AI agents in one place
Stars
30,859Last commit
10 hours agoLicense
Apache-2.0
Workspace that combines team chat, project planning, and git management with AI agents that collaborate alongside your team on shared context.
Open Source Alternative to:
Common layer for composing and governing AI agents
Stars
9,305Last commit
12 hours agoLicense
Apache-2.0
Meta-harness that sits above Claude Code, Codex, and other AI agents to add policy enforcement, sandboxing, and real-time collaborative sessions.
Open Source Alternative to:
c15t – Open-source cookie banner, built for control and lightening fast modern web apps.
c15t
Sent
InfluxDB