Browse Trending Open Source Tools This Month
Open source tools gaining GitHub stars fastest over the last 30 days. Ranked by growth rate rather than raw star count, so genuine breakouts surface above established projects.
All-in-one workspace for project, chat, and docs
Stars
27,879Last commit
9 hours agoLicense
EPL-2.0
Combines project management, team chat, virtual office, and collaborative docs into a single platform. A self-hostable alternative to Linear, Jira, Slack, and Notion.
Open Source Alternative to:
Secure cloud collaboration platform for organizations
Stars
37,083Last commit
8 hours agoLicense
AGPL-3.0
Nextcloud offers on-premises file sync, sharing and collaboration platform with advanced security and privacy features.
Open Source Alternative to:
Fast, minimal VPN built on modern cryptography
Stars
727Last commit
5 months agoLicense
GPL-2.0
VPN protocol that runs inside the Linux kernel, using public-key cryptography to create encrypted tunnels across UDP with minimal configuration.
Open Source Alternative to:
AI-native support infrastructure for modern SaaS
Stars
732Last commit
25 days agoLicense
AGPL-3.0
Open-source support platform combining AI and human agents. React components with shadcn/ui design philosophy, styled with Tailwind CSS for NextJS apps.
Open Source Alternative to:
Secure, decentralized messaging for teams and individuals
Stars
13,561Last commit
8 hours agoLicense
AGPL-3.0
Open-source platform for encrypted communication, file sharing, and collaboration based on the Matrix protocol.
Open Source Alternative to:
Get alerted when cron jobs and scheduled tasks miss their run
Stars
10,412Last commit
1 day 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:
High-performance time series database for metrics and logs
Stars
17,849Last commit
8 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:
Effortless time tracking for open source projects
Stars
8,995Last commit
16 hours agoLicense
AGPL-3.0
Seamlessly track time across multiple projects, generate insightful reports, and optimize your open source contributions.
Open Source Alternative to:
Secure password management for individuals and businesses
Stars
20,284Last commit
9 hours agoLicense
AGPL-3.0
Bitwarden is an open source password manager that securely stores, shares, and autofills passwords across unlimited devices.
Open Source Alternative to:
Lightning-fast search for massive datasets
Stars
11,712Last commit
19 hours agoLicense
Apache-2.0
High-performance search engine designed for big data, offering scalability, real-time indexing, and cost-effective operations.
Open Source Alternative to:
Status page and uptime monitoring for growing teams
Stars
9,181Last commit
24 hours agoLicense
AGPL-3.0
Open-source status page and uptime monitor that tracks endpoints from 28 global regions, communicates incidents, and helps satisfy SOC 2 audit requirements.
Open Source Alternative to:
Privacy-first knowledge base that connects your notes
Stars
45,218Last commit
8 hours agoLicense
AGPL-3.0
Local-first, open-source knowledge management tool with bidirectional linking, outlines, flashcards, PDF annotations, and whiteboards for building a connected second brain.
Open Source Alternative to:
Python-native workflow orchestration for data and ML teams
Stars
24,011Last commit
22 hours agoLicense
Apache-2.0
Orchestrate data pipelines, ML jobs, and agent workflows in plain Python with automatic retries, scheduling, and a unified UI for every run across your infrastructure.
Open Source Alternative to:
Manage Linux servers with ease through a modern web interface
Stars
37,161Last commit
9 hours agoLicense
GPL-3.0
Comprehensive web-based tool for Linux server administration with integrated website, database, container, and LLM management capabilities.
Open Source Alternative to:
Effortless group scheduling for seamless collaboration
Stars
5,301Last commit
8 hours agoLicense
AGPL-3.0
A user-friendly, open-source tool for coordinating events and meetings without the hassle of back-and-forth emails or messages.
Open Source Alternative to:
Accelerate backend development with effortless scalability
Stars
12,446Last commit
1 day agoLicense
MPL-2.0
A powerful platform for building cloud backends, automating infrastructure, and simplifying development workflows for faster, more efficient coding.
Open Source Alternative to:
Hyperextensible, Lua-powered Vim-based text editor
Stars
103,048Last commit
10 hours agoLicense
Unknown
A modernized Vim fork with built-in LSP, Lua scripting, Tree-sitter parsing, and an async plugin architecture that works the same across every platform.
Open Source Alternative to:
Secure access management for modern IT infrastructure
Stars
31,759Last commit
8 hours agoLicense
GPL-3.0
Open-source privileged access management solution offering secure, browser-based access to SSH, RDP, Kubernetes, databases and remote applications.
Open Source Alternative to:
Deploy web apps with automated CI/CD and full infrastructure control
Stars
266Last commit
17 hours agoLicense
GPL-3.0
Self-hosted platform for web applications offering automated CI/CD pipelines, multiple environments, and Git integration - with 47% infrastructure cost savings.
Open Source Alternative to:
Unified observability for metrics, logs, traces, and more
Stars
77,286Last commit
8 hours agoLicense
AGPL-3.0
Grafana unifies metrics, logs, traces, profiles, and business data into one OpenTelemetry-native platform with AI-assisted root cause analysis and adaptive cost controls.
Open Source Alternative to:
Open source metrics collection, storage, and alerting
Stars
66,524Last commit
15 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:
Powerful observability made simple for developers
Stars
4,512Last commit
3 days agoLicense
MIT
Logfire offers intuitive observability tools for Python applications, combining logs, profiling, and telemetry in one platform.
Open Source Alternative to:
Open-source data integration for modern teams
Stars
22,216Last commit
8 hours agoLicense
Elastic-2.0
Seamlessly sync data from any source to any destination with a flexible, extensible platform that grows with your data needs.
Open Source Alternative to:
Monitor LLM performance with open-source observability
Stars
7,486Last commit
10 hours agoLicense
Apache-2.0
Open-source observability platform for LLMs using OpenTelemetry. Monitor performance, track costs, and debug AI applications with just 2 lines of code.
Open Source Alternative to:
Transform natural language into SQL queries with AI
Stars
28,313Last commit
4 days agoLicense
Apache-2.0
AI-powered SQL client that converts natural language to SQL queries. Supports MySQL, Redis, MongoDB with Text2SQL, BI dashboards, and secure database management.
Open Source Alternative to:
Continuous web-based localization for global reach
Stars
6,110Last commit
8 hours agoLicense
GPL-3.0
Web-based continuous localization platform with version control integration, quality checks, and clean interface. Used by 2,500+ projects in 165+ countries.
Open Source Alternative to:
Secure collaboration platform for mission-critical work
Stars
39,323Last commit
8 hours agoLicense
Unknown
Mattermost provides a flexible, open-source platform for secure team collaboration, designed for organizations with strict security and privacy requirements.
Open Source Alternative to:
Your digital identity, beautifully organized
Stars
3,901Last commit
9 days agoLicense
AGPL-3.0
A free, open-source link management platform for creating customizable, self-hosted link pages to showcase your online presence.
Open Source Alternative to:
Visual regression testing for seamless UI development
Stars
636Last commit
8 hours agoLicense
MIT
Automate visual testing, catch UI bugs early, and collaborate effortlessly with your team to maintain pixel-perfect interfaces.
Open Source Alternative to:
A modern terminal built around AI coding agents
Stars
65,448Last commit
13 hours agoLicense
AGPL-3.0
Terminal built for running AI coding agents like Claude Code, Codex, and Gemini CLI, with shared context, interactive code review, and multi-session management.
Open Source Alternative to:
Open-source BI for modern data teams
Stars
6,183Last commit
11 hours agoLicense
MIT
Self-serve analytics platform that transforms dbt models into interactive dashboards, enabling data-driven decisions across organizations.
Open Source Alternative to:
One API to deploy and run agents on any model or machine
Stars
2,907Last commit
11 hours agoLicense
Apache-2.0
Production-ready agent infrastructure that handles state, machines, permissions, and history so you don't have to build the platform yourself.
Open Source Alternative to:
Self-hosted team workspace with chat, docs, and databases
Stars
5,171Last commit
6 months agoLicense
Apache-2.0
Local-first collaboration platform combining real-time chat, rich text pages, databases, and file management in a single self-hostable workspace.
Open Source Alternative to:
Deploy a professional status page in minutes, no coding required
Stars
5,204Last commit
2 days agoLicense
MIT
Free, open-source status page and uptime monitor with Docker deployment. Track 11 service types, manage incidents, schedule maintenance, and notify subscribers instantly.
Open Source Alternative to:
Visual React editor with real-time code updates
Stars
26,908Last commit
2 months agoLicense
Apache-2.0
Onlook is an open-source desktop app that allows you to visually edit React applications and automatically write changes back to your code in real-time.
Open Source Alternative to:
Revolutionize your Git workflow with simultaneous branches
Stars
21,807Last commit
9 hours agoLicense
FSL-1.1-MIT
GitButler is a powerful Git client that enables seamless work on multiple branches concurrently, enhancing your existing workflow.
Open Source Alternative to:
Open-source vector database for AI search and retrieval
Stars
29,491Last commit
9 hours agoLicense
Apache-2.0
Open-source vector database designed for AI applications. Store, search, and retrieve embeddings with semantic similarity matching and metadata filtering.
Open Source Alternative to:
High-performance time-series database for massive data scale
Stars
17,440Last commit
8 hours agoLicense
Apache-2.0
Open-source time-series database offering massive ingestion throughput, millisecond queries, and SQL extensions, designed for optimal performance at any hardware scale.
Open Source Alternative to:
System-wide ad-blocking and privacy protection, no extensions needed
Stars
4,261Last commit
21 hours agoLicense
MIT
Free, open-source desktop app that blocks ads, trackers, and surveillance scripts across all browsers and apps on Windows, macOS, and Linux.
Open Source Alternative to:
Time-series database built on top of PostgreSQL
Stars
23,678Last commit
8 hours agoLicense
Unknown
PostgreSQL extension for time-series data with automatic partitioning, up to 95% columnar compression, continuous aggregates, and ~200 native SQL functions.
Open Source Alternative to:
Powerful open-source business intelligence for data-driven decisions
Stars
1,024Last commit
9 hours agoLicense
AGPL-3.0
Connect multiple data sources, build complex queries, create insightful visualizations, and organize powerful dashboards to make informed business decisions.
Open Source Alternative to:
Secure, policy-based access control for modern applications
Stars
4,619Last commit
8 hours agoLicense
Apache-2.0
A scalable authorization layer that provides fine-grained access control through externalized policies, enabling secure and flexible permissions management.
Open Source Alternative to:
Bright Data – Web data for AI agents and apps. Built-in unblocking, proxies, and ready-made APIs.
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