Free open source alternatives for Windows

Browse free and open source software that runs on Windows. Find open-source alternatives, compare features, platforms and pricing, and pick the right Windows tool for you.

AppFlowy

AppFlowy is an AI collaborative workspace where you achieve more without losing control of your data.

FreemiumWindowsmacOSLinuxAndroidiOS

Lapce

Lapce (IPA: /læps/) is written in pure Rust, with a UI in Floem . It is designed with Rope Science from the Xi-Editor , enabling lightning-fast computation, and leverages wgpu for rendering. More information about the features of Lapce can be found on the main website and user documentation can be found on GitBook . Features Built-in LSP ( Language Server Protocol ) support to give you intelligent code features such as: completion, diagnostics and code actions Modal editing support as first class citizen (Vim-like, and toggleable) Built-in remote development support inspired by VSCode Remote Development . Enjoy the benefits of a "local" experience, and seamlessly gain the full power of a remote system. We also have Lapdev which can help manage your remote dev environments. Plugins can be written in programming languages that can compile to the WASI format (C, Rust, AssemblyScript ) Built-in terminal, so you can execute commands in your workspace, without leaving Lapce. Installation You can find pre-built releases for Windows, Linux and macOS here , or installing with a package manager . If you'd like to compile from source, you can find the guide . Feedback & Contact The most popular place for Lapce developers and users is on the Discord server . Or, join the discussion on Reddit where we are just getting started. There is also a Matrix Space , which is linked to the content from the Discord server. License Lapce is released under the Apache License Version 2, which is an open source license. You may contribute to this project, or use the code as you please as long as you adhere to its conditions. You can find a copy of the license text here: LICENSE .

FreeWindowsmacOSLinux

Seeddance

Seeddance is an all-in-one AI creative platform featuring the Seedance 2.0 model. Itenables users to generate cinematic videos from text or images with multi-shotconsistency. The site also offers AI-powered image generation, text-to-music tools, andviral effects like AI hugging or kissing.

FreemiumWindowsmacOSLinuxAndroidiOS

Floor Plan AI

Floor Plan AI is an AI-assisted floor plan generator for creating reviewable 2D floor plan PNG drafts. Users can start from written ideas, room dimensions, or optional JPG, PNG, and WebP reference images, then review and download the generated plan image. Generated plans require human review and are not a substitute for professional CAD, BIM, structural, permitting, or legal work.

FreemiumWindowsmacOSLinuxAndroidiOS

Zoho Meeting

Zoho Meeting is a secure online meeting platform and webinar solution that helps you connect, collaborate, and work remotely with efficacy. Schedule online meetings, stream live webinars and enhance your remote collaboration experience today with our highly secure online meeting software.

FreemiumWindowsmacOSAndroidiOS

RoboForm

Next generation password manager. Leading the way in password management technology, security, and innovation. RoboForm Password Manager. Stay secure, productive, and efficient with our seamless free password manager and form filling solution.

FreemiumWindowsmacOSLinuxAndroidiOS

Klaviyo

Intelligent email marketing and SMS platform with automation for faster, more efficient growth. Turn your customer data into hyper-personalized messages.

FreemiumWindowsmacOSLinux

Dub

Dub.co is the open-source link management platform for modern marketing teams to create marketing campaigns, link sharing features, and referral programs.

FreemiumWindowsmacOSLinux

ImageUnblur

What does it do? Image Unblur is an AI-powered online tool designed to restore clarity to low-quality images. It automatically analyzes and sharpens blurry photos, removes pixelation, and upscales resolution. Whether you need to fix out-of-focus shots, make blurry text readable, or restore old damaged photos, it handles the complex processing in seconds to deliver crisp, high-definition results. Who is it for? It is built for anyone who needs to salvage or enhance a photo. This includes photographers fixing slightly missed focus, digital marketers needing crisp assets, students and researchers trying to decipher blurry documents or screenshots, and archivists looking to restore clarity to old family memories without needing complex editing software. What makes it unique? Unlike generic photo editors that simply sharpen edges (often introducing noise), Image Unblur uses state-of-the-art Generative AI models tailored for specific tasks—such as a dedicated mode for unblurring text and another for enhancing facial details. It operates entirely in the browser with no software credits required for basic use, and strictly prioritizes user privacy by automatically deleting all uploaded images shortly after processing.

FreemiumWindowsmacOSLinuxAndroidiOS

Tattoo AI

Tattoo AI is an AI-powered tattoo design tool that turns text prompts or reference images into clear tattoo concepts. Users can explore tattoo styles, compare design variations, preview ideas, and create references for tattoo planning before visiting a studio.

FreemiumWindowsmacOSLinuxAndroidiOS

New Relic

All-in-one observability. Data for engineers to monitor, debug, and improve their entire stack. Sign up for free, no credit card required with New Relic the all-in-one observability platform for engineers to monitor, debug, and improve their entire stack.

FreemiumWindowsmacOSLinuxAndroidiOS

lnmp

LEMP stack/LAMP stack/LNMP stack installation scripts for CentOS/Redhat Debian and Ubuntu This script is written using the shell, in order to quickly deploy LEMP / LAMP / LNMP / LNMPA / LTMP (Linux, Nginx/Tengine/OpenResty, MySQL in a production environment/MariaDB/Percona, PHP, JAVA), applicable to RHEL 7, 8, 9(including CentOS,RedHat,AlmaLinux,Rocky), Debian 9, 10, 11, 12, Ubuntu 16, 18, 20, 22, 24 and Fedora 27+ of 64. Script properties: Continually updated, Provide Shell Interaction and Autoinstall Source compiler installation, most stable source is the latest version, and download from the official site Some security optimization Providing a plurality of database versions (MySQL-8.4, MySQL-8.0, MySQL-5.7, MySQL-5.5, MariaDB-11.4, MariaDB-10.11, MariaDB-10.5, MariaDB-5.5, Percona-8.4, Percona-8.0, Percona-5.7, Percona-5.5, PostgreSQL, MongoDB) Providing multiple PHP versions (PHP-8.4, PHP-8.3, PHP-8.2, PHP-8.1, PHP-8.0, PHP-7.4, PHP-7.3, PHP-7.2, PHP-7.1, PHP-7.0, PHP-5.6, PHP-5.5, PHP-5.4, PHP-5.3) Provide Nginx, Tengine, OpenResty, Apache and ngx_lua_waf Providing a plurality of Tomcat version (Tomcat-10, Tomcat-9, Tomcat-8, Tomcat-7) Providing a plurality of JDK version (OpenJDK-8, OpenJDK-11, OpenJDK-17) According to their needs to install PHP Cache Accelerator provides ZendOPcache, xcache, apcu, eAccelerator. And php extensions,include ZendGuardLoader,ionCube,SourceGuardian,imagick,gmagick,fileinfo,imap,ldap,calendar,phalcon,yaf,yar,redis,memcached,memcache,mongodb,swoole,xdebug Installation Nodejs, Pureftpd, phpMyAdmin according to their needs Install memcached, redis according to their needs Jemalloc optimize MySQL, Nginx Providing add a virtual host script, include Let's Encrypt SSL certificate Provide Nginx/Tengine/OpenResty/Apache/Tomcat, MySQL/MariaDB/Percona, PHP, Redis, Memcached, phpMyAdmin upgrade script Provide local,remote(rsync between servers),Aliyun OSS,Qcloud COS,UPYUN,QINIU,Amazon S3,Google Drive and Dropbox backup script

FreeWindowsmacOSLinux

Pinpoint Answer Today

Pinpoint Answer Today is a fan-built companion for the daily LinkedIn puzzle. We deliver rapid solutions, thoughtful analysis, and strategy guides while operating independently from any organization.

FreeWindowsmacOSLinuxAndroidiOS

Backendless

Build apps at lightning speed with a visual low-code app builder featuring UI, Codeless logic, real-time database, messaging, and more.

FreemiumWindowsmacOSLinux

drawDB

Free, simple, and intuitive database design tool and SQL generator. DrawDB is a robust and user-friendly database entity relationship (DBER) editor right in your browser. Build diagrams with a few clicks, export sql scripts, customize your editor, and more without creating an account.

FreeWindowsmacOSLinux

Brewlet

This menulet makes it easier to use brew.sh. For example, you need to manually check if some of your packages can be updated. With Brewlet it's easy: if everything is working swimmingly, then you'll see the normal shadow icon. If updates are available to be installed, the icon will become colored, , to get your attention – along with a notification if you wish. Once clicked, you'll be able to upgrade your packages, among other options. In addition, Brewlet will periodically check the status of packages in the background, so you don't have to.

FreeWindowsmacOSLinux

RustFS

RustFS is developed with the popular and secure Rust language, compatible with S3 protocol. Suitable for AI/ML and massive data storage, big data, internet, industrial and confidential storage scenarios. Nearly free to use. Follows Apache 2 license, supports domestic confidential equipment and systems. High-performance enterprise-grade distributed file system Comprehensive features to meet enterprise-grade storage requirements Cross-Cloud RustFS leverages distributed architecture and object storage capabilities to provide excellent performance for AI and advanced analytics workloads, supporting data scaling from TB to EB levels. Secure & Reliable RustFS integrates with RustyVault to provide high-performance object storage security encryption, supporting multiple encryption modes to ensure data security and transparency. Version Control Object storage version control feature assigns unique identifiers to each object version, allowing users to access and manage historical versions through APIs or management interfaces. Unlimited Scaling RustFS system automatically balances node loads, ensures even data distribution, supports dynamic addition or removal of resources based on storage needs, achieving unlimited scaling. Object Read-Only Supports object locking mode, implementing WORM (Write Once, Read Many) functionality, preventing data from being modified or deleted within specified time ranges, ensuring data integrity. Active Replication Automatically creates multiple copies when objects are written and distributes them to different nodes, supports synchronous and asynchronous replication modes, providing high availability and disaster recovery capabilities.

FreeWindowsmacOSLinux

AI Animate Image

AI Animate Image turns still photos into short cinematic videos in about 60 seconds. Upload a portrait, product shot, cartoon, old photo, or AI-generated character — pick a motion style from the curated prompt library, and the AI brings it to life with natural motion, camera movement, and optional audio. Powered by Kling 3.0, Google VEO 3.1, and Seedance 2.0. Every output is MP4, ready for TikTok, Reels, YouTube Shorts, or e-commerce. Free credits on signup, no credit card required.

FreemiumWindowsmacOSLinuxAndroidiOS

continue

continue is a free, open-source alternative to GitHub Copilot . Continue Pioneering open-source coding agent What is Continue? Note: The continuedev/continue repository is no longer actively maintained and is read-only for all users. Continue is a coding agent available as a CLI , VS Code extension , and JetBrains plugin . Documentation To learn how to configure Continue, how it works, and how to customize it, check out the Continue Docs . Final 2.0.0 Release We polished Continue and did a final 2.0.0 release of the VS Code extension, CLI, and JetBrains plugin. This included removing anonymous telemetry, pulling out authentication, squashing bugs, and more. VS Code CLI JetBrains Note: We recommend using the Continue CLI instead of the JetBrains plugin. Contributors Thank you to the entire Continue community for helping us create a pioneering coding agent. What we built together pushed the boundaries of what AI developer tooling could be. We hope this codebase continues to serve as a foundation for others. Code friends License Apache 2.0 © 2023-2026 Continue Dev, Inc.

FreeWindowsmacOSLinux

Sticky Password

The lifetime password manager. Simplify your digital life Control all your passwords Access on all your devices Protect your data from the dark web Stop forgetting passwords now. With our free password manager, you can log in securely, autofill forms in a second, and use your passwords wherever you go.

FreemiumWindowsmacOSAndroidiOS

Explore more categories:

Acorn 7

Acorn 7 is a Mac image editor for editing photos and creating graphics.

Ad Blocker

Ad Blocker is a browser tool that removes intrusive ads and pop-ups from web pages.

AI & Machine Learning

Free open-source AI & machine learning tools.

AdGuard

AdGuard is a cross-platform ad blocker that filters web content and protects privacy.

Adobe Premiere Pro

Adobe Premiere Pro is a professional video editing software for film, TV, and web.

AI / LLM Inference

AI/LLM Inference delivers fast, scalable deployment of large language models for generating AI responses.