New Open Source Tools We Discovered This Month — July 2026

July 2026 has been our busiest month yet for adding new tools to the directory. We’ve expanded coverage across multiple categories — from AI interfaces and identity platforms to flight simulators and personal finance — with dozens of new listings going live this month alone.

Here are six standout additions that caught our attention, spanning the breadth of what the open-source ecosystem has to offer right now.

1. Open WebUI — Your Local AI Interface, Polished

With over 146,000 GitHub stars, Open WebUI has quickly become the most popular user interface for running large language models locally. It connects to Ollama or OpenAI-compatible backends and provides a ChatGPT-like experience — complete with chat histories, markdown rendering, code syntax highlighting, and multi-model switching — all running on your own hardware.

What sets Open WebUI apart is its polish. The interface supports RAG (retrieval-augmented generation) by letting you upload documents directly into a conversation, voice input via speech-to-text, and role-based access control for multi-user setups. For anyone running local LLMs, this is the front-end to use.

Deploy it:

docker run -d -p 3000:8080   -v open-webui:/app/backend/data   --name open-webui   ghcr.io/open-webui/open-webui:main

Check out the Open WebUI listing in the directory.

2. Actual Budget — Personal Finance, Done Right

Actual Budget is an open-source personal finance app that takes the best ideas from tools like YNAB (You Need A Budget) and implements them without a subscription. It focuses on envelope budgeting — you allocate money to categories, track spending against those allocations, and get a clear picture of where your money is going.

The interface is fast, the reports are genuinely useful (net worth graphs, category spending trends, income vs. expense charts), and it supports bank import via CSV, QFX, and OFX files. Actual Budget runs as a single Docker container and is lightweight enough for a Raspberry Pi.

Quick start:

docker run -d -p 5006:5006   -v actual-data:/data   actualbudget/actual-server

Find more detail on the Actual Budget listing.

3. OSQuery — Your Operating System as a Database

OSQuery is an instrumentation framework originally created by Facebook (now Meta) that exposes operating system data through SQL queries. Want to list all running processes, listening ports, loaded kernel modules, or installed packages across your fleet? OSQuery lets you write simple SQL — SELECT * FROM processes WHERE name = 'nginx' — and get answers instantly.

It runs as a daemon on Linux, macOS, and Windows, supports scheduled queries for continuous monitoring, and integrates with tools like Kolide, Fleet, and osctrl for fleet management. For DevOps and security teams, OSQuery has become the standard way to do host-level introspection at scale.

See the OSQuery listing for more information.

4. FlightGear — The Professional Open-Source Flight Simulator

FlightGear has been in development since 1997 and remains the most capable open-source flight simulator available. It features a realistic flight dynamics engine (JSBSim), a planetary-scale terrain system built from real elevation data, detailed aircraft models, and an active community creating custom scenery and add-ons.

Unlike gaming-focused simulators, FlightGear is used in academic research and real-world pilot training. It supports multi-player flying, ATC communications, and a flexible property tree that lets you instrument every aspect of the simulation. The latest 2024.1.x series brought Vulkan rendering support, improved weather systems, and updated aircraft models.

Install on Linux:

sudo apt install flightgear

Browse the FlightGear listing in the directory.

5. Logto — Open-Source Identity for Modern Apps

Logto is an open-source identity platform that competes with Auth0, Clerk, and Firebase Auth — but self-hosted. It provides user authentication (email/password, phone, social logins, and passwordless), single sign-on (SSO) via OIDC and SAML, role-based access control, and a pre-built sign-in experience that you can customise.

What makes Logto stand out is its developer experience. A single SDK covers web, mobile, and native apps, and the admin console is comprehensive without being overwhelming. User management, audit logs, and API resource configuration are all accessible from the dashboard. If you’re building an app that needs authentication, Logto is worth a serious look.

Deploy with Docker:

docker run -d -p 3001:3001   -v logto-data:/data   ghcr.io/logto-io/logto

See the Logto listing for more.

6. OpenStreetMap — The Map of the World, Built Together

OpenStreetMap (OSM) is the Wikipedia of maps — a free, editable map of the whole world built by a community of over 10 million contributors. Unlike Google Maps or Apple Maps, OSM is open data: you can download the entire planet’s worth of map data, render it however you like, and use it without licensing restrictions.

OSM powers thousands of applications — from hiking apps like OsmAnd to navigation tools, humanitarian mapping efforts, and custom renderers. The project’s data quality rivals (and in many regions exceeds) proprietary alternatives, especially for pedestrian paths, cycling routes, and rural areas that commercial mappers often neglect.

Explore the OpenStreetMap listing in our directory.

More Tools Added This Month

These six are just a sample. July 2026 also saw the addition of tools spanning authentication (Authelia, authentik, Casdoor, Zitadel), project management (OpenProject, Taiga, Plane, WeKan, Vikunja), finance (GnuCash, Invoice Ninja, Akaunting), monitoring (Grafana, Prometheus, Netdata), container orchestration (Kubernetes, Podman), and many more.

Browse the full directory to see everything we’ve added, or check out individual categories to find tools for your specific needs.

Which tool are you most excited to try? Let us know — and if there’s an open-source tool you think we’re missing, submit it here.