Home › Open-Source Alternatives › Free Business Tools

Free Business Tools

Top Open-Source Alternatives tools for free business tools — made for anyone tired of subscriptions who wants free, proven replacements for paid software. Every project below is a real, public GitHub repository, ranked by the stars the community gave it.

50 repositories · ranked by GitHub stars by default

codecrafters-io avatar

build-your-own-x

by codecrafters-io

Master programming by recreating your favorite technologies from scratch.

⭐ 558.3k🍴 52.2k 💻 MarkdownBasic Technical Setup
Updated 14 Jul 2026 Explore Tool
public-apis avatar

public-apis

by public-apis

A collective list of free APIs

⭐ 494.6k🍴 55.2k 💻 PythonCoding Knowledge Recommended
Updated 01 Nov 2026 Explore Tool
DigitalPlatDev avatar

FreeDomain

by DigitalPlatDev

Free domain registration and practical DNS learning resources for everyone.

⭐ 206.7k🍴 4.6k 💻 MarkdownBasic Technical Setup
Updated 12 Aug 2026 Explore Tool
odoo avatar

odoo

by odoo

Odoo. Open Source Apps To Grow Your Business.

⭐ 55.5k🍴 34.2k 💻 PythonCoding Knowledge Recommended
Updated 02 Nov 2026 Explore Tool
DataTalksClub avatar

data-engineering-zoomcamp

by DataTalksClub

Data Engineering Zoomcamp is a free 9-week course on building production-ready data pipelines. Join the course here 👇🏼

⭐ 46.6k🍴 9k 💻 Jupyter NotebookBasic Technical Setup
Updated 15 Oct 2026 Explore Tool
RocketChat avatar

Rocket.Chat

by RocketChat

The Secure CommsOS™ for mission-critical operations

⭐ 46.4k🍴 14.1k 💻 TypeScriptCoding Knowledge Recommended
Updated 01 Nov 2026 Explore Tool
webadderallorg avatar

Recordly

by webadderallorg

Create polished demo videos without editing skills. Mac/Windows/Linux

⭐ 35.8k🍴 2.9k 💻 TypeScriptCoding Knowledge Recommended
Updated 24 Oct 2026 Explore Tool
vorssaint avatar

vorssaint-utils

by vorssaint

Free and open-source macOS menu bar toolkit.

⭐ 32.3k🍴 1.6k 💻 SwiftCoding Knowledge Recommended
Updated 30 Oct 2026 Explore Tool
maotoumao avatar

MusicFree

by maotoumao

插件化、定制化、无广告的免费音乐播放器

⭐ 28.2k🍴 2k 💻 TypeScriptCoding Knowledge Recommended
Updated 15 Oct 2026 Explore Tool
zulip avatar

zulip

by zulip

Zulip server and web application. Open-source team chat that helps teams stay productive and focused.

⭐ 26.2k🍴 10.5k 💻 PythonCoding Knowledge Recommended
Updated 01 Nov 2026 Explore Tool
basarat avatar

typescript-book

by basarat

:books: The definitive guide to TypeScript and possibly the best TypeScript book :book:. Free and Open Source 🌹

⭐ 21.6k🍴 2.6k 💻 TypeScriptCoding Knowledge Recommended
Updated 29 Jun 2024 Explore Tool
LiLittleCat avatar

awesome-free-chatgpt

by LiLittleCat

🆓免费的 ChatGPT 镜像网站列表,持续更新。List of free ChatGPT mirror sites, continuously updated.

⭐ 21.3k🍴 1.4k 💻 PythonBasic Technical Setup
Updated 23 Jun 2025 Explore Tool

免费无广告的追剧资源指南,人工精选资源、每天检测资源有效性。收录在线影视、影视APP、网盘搜索、磁力BT、字幕、TVBox / 影视仓空壳软件/配置地址、IPTV直播源、会员拼团、影视相关开源项目。开源,社区共同维护。

⭐ 14.4k🍴 1k 💻 JavaScriptBasic Technical Setup
Updated 01 Nov 2026 Explore Tool
abraunegg avatar

onedrive

by abraunegg

OneDrive Client for Linux

⭐ 13k🍴 920 💻 DCoding Knowledge Recommended
Updated 01 Nov 2026 Explore Tool

A collection of services with great free tiers for developers on a budget. Sponsored by Mockoon, the best mock API tool. https://mockoon.com

⭐ 12.5k🍴 601 💻 —Basic Technical Setup
Updated 29 Oct 2026 Explore Tool
dreamhunter2333 avatar

cloudflare_temp_email

by dreamhunter2333

CloudFlare free temp domain email 免费收发 临时域名邮箱 支持附件 IMAP SMTP TelegramBot

⭐ 12k🍴 8k 💻 TypeScriptCoding Knowledge Recommended
Updated 01 Nov 2026 Explore Tool
Kareadita avatar

Kavita

by Kareadita

Kavita is a fast, feature rich, cross platform reading server. Built with the goal of being a full solution for all your reading needs. Setup your own server and share your…

⭐ 12k🍴 692 💻 C#Coding Knowledge Recommended
Updated 01 Nov 2026 Explore Tool
is-a-dev avatar

register

by is-a-dev

Grab your own sweet-looking '.is-a.dev' subdomain.

⭐ 11.7k🍴 34k 💻 JavaScriptCoding Knowledge Recommended
Updated 01 Nov 2026 Explore Tool
gibbok avatar

typescript-book

by gibbok

The Concise TypeScript Book: A Concise Guide to Effective Development in TypeScript. Free and Open Source.

⭐ 10.4k🍴 605 💻 TypeScriptCoding Knowledge Recommended
Updated 30 Oct 2026 Explore Tool
StartBootstrap avatar

startbootstrap-sb-admin-2

by StartBootstrap

A free, open source, Bootstrap admin theme created by Start Bootstrap

⭐ 9.9k🍴 5.7k 💻 HTMLCoding Knowledge Recommended
Updated 02 Jul 2024 Explore Tool
pterodactyl avatar

panel

by pterodactyl

Pterodactyl® is a free, open-source game server management panel built with PHP, React, and Go. Designed with security in mind, Pterodactyl runs all game servers in isolated…

⭐ 9.5k🍴 2.7k 💻 PHPCoding Knowledge Recommended
Updated 21 Oct 2026 Explore Tool
LibreHardwareMonitor avatar

LibreHardwareMonitor

by LibreHardwareMonitor

Libre Hardware Monitor is free software that can monitor the temperature sensors, fan speeds, voltages, load and clock speeds of your computer.

⭐ 9.3k🍴 1k 💻 C#Coding Knowledge Recommended
Updated 29 Oct 2026 Explore Tool
webstudio-is avatar

webstudio

by webstudio-is

Open source website builder and Webflow alternative. Webstudio is an advanced visual builder that connects to any headless CMS, supports all CSS properties, and can be hosted…

⭐ 9.1k🍴 1.6k 💻 TypeScriptCoding Knowledge Recommended
Updated 01 Nov 2026 Explore Tool
maotoumao avatar

MusicFreeDesktop

by maotoumao

插件化、定制化、无广告的免费音乐播放器

⭐ 9.1k🍴 885 💻 TypeScriptCoding Knowledge Recommended
Updated 09 Oct 2026 Explore Tool
justlovemaki avatar

AIClient2API

by justlovemaki

Self-hosted multi-protocol AI API proxy for Antigravity, Codex, Grok, Kiro, OpenAI, Claude, and custom providers. Supports OpenAI-compatible API, Claude API, Gemini protocol…

⭐ 8.9k🍴 1.4k 💻 JavaScriptCoding Knowledge Recommended
Updated 26 Oct 2026 Explore Tool
givanz avatar

VvvebJs

by givanz

Drag and drop page builder library written in vanilla javascript without dependencies or build tools.

⭐ 8.7k🍴 1.8k 💻 JavaScriptNo Coding Required
Updated 01 Jul 2026 Explore Tool
ztjhz avatar

BetterChatGPT

by ztjhz

An amazing UI for OpenAI's ChatGPT (Website + Windows + MacOS + Linux)

⭐ 8.4k🍴 2.6k 💻 TypeScriptCoding Knowledge Recommended
Updated 14 Aug 2024 Explore Tool
thejsway avatar

thejsway

by thejsway

The JavaScript Way book

⭐ 7.9k🍴 787 💻 CSSBasic Technical Setup
Updated 30 Jan 2025 Explore Tool
linsa-io avatar

books

by linsa-io

Awesome Books

⭐ 7.8k🍴 829 💻 —Basic Technical Setup
Updated 04 Mar 2026 Explore Tool
endless-sky avatar

endless-sky

by endless-sky

Space exploration, trading, and combat game.

⭐ 7.7k🍴 1.3k 💻 C++Coding Knowledge Recommended
Updated 02 Nov 2026 Explore Tool
bleachbit avatar

bleachbit

by bleachbit

BleachBit system cleaner for Windows and Linux

⭐ 7.3k🍴 485 💻 PythonCoding Knowledge Recommended
Updated 01 Nov 2026 Explore Tool
BlackrockDigital avatar

startbootstrap

by BlackrockDigital

A library of free and open source Bootstrap themes and templates

⭐ 7.1k🍴 2.6k 💻 HTMLCoding Knowledge Recommended
Updated 12 Oct 2020 Explore Tool
wesnoth avatar

wesnoth

by wesnoth

An open source, turn-based strategy game with a high fantasy theme.

⭐ 7k🍴 1.3k 💻 C++Coding Knowledge Recommended
Updated 01 Nov 2026 Explore Tool
Drakkar-Software avatar

OctoBot

by Drakkar-Software

Free open source crypto trading bot to automate AI, Grid, DCA and TradingView strategies on Binance, Hyperliquid and 15+ exchanges, with a simple interface.

⭐ 6.9k🍴 1.3k 💻 PythonCoding Knowledge Recommended
Updated 27 Oct 2026 Explore Tool
awesome-vpn avatar

awesome-vpn

by awesome-vpn

Free proxy node aggregator. Daily updated vmess/vless/trojan/ss. 免费 代理节点 翻墙 梯子 科学上网 机场订阅 网络加速 VPN 免翻墙每日更新 一键导入

⭐ 6.8k🍴 579 💻 PythonCoding Knowledge Recommended
Updated 01 Nov 2026 Explore Tool
wordshub avatar

free-font

by wordshub

大概是2020年最全的免费可商用字体,这里收录的商免字体都能找到明确的授权出处,可以放心使用,持续更新中...

⭐ 6.5k🍴 450 💻 JavaScriptCoding Knowledge Recommended
Updated 27 Feb 2025 Explore Tool
PanXProject avatar

awesome-certificates

by PanXProject

Curated list of 20,000+ hours and 200+ free courses with certificates in IT, CS, Design and Business.

⭐ 5.9k🍴 476 💻 —Basic Technical Setup
Updated 30 Jun 2026 Explore Tool
js-org avatar

js.org

by js-org

Dedicated to JavaScript and its awesome community since 2015

⭐ 5.9k🍴 5.3k 💻 JavaScriptCoding Knowledge Recommended
Updated 01 Nov 2026 Explore Tool
TheSpeedX avatar

PROXY-List

by TheSpeedX

Get PROXY List that gets updated everyday

⭐ 5.9k🍴 1.1k 💻 —Basic Technical Setup
Updated 02 Nov 2026 Explore Tool
Superalgos avatar

Superalgos

by Superalgos

Free, open-source crypto trading bot, automated bitcoin / cryptocurrency trading software, algorithmic trading bots. Visually design your crypto trading bot, leveraging an…

⭐ 5.8k🍴 6k 💻 JavaScriptCoding Knowledge Recommended
Updated 02 Nov 2026 Explore Tool
VPN-Subcription-Links avatar

ClashX-V2Ray-TopFreeProxy

by VPN-Subcription-Links

Top free VPN (ClashX & V2Ray proxy) with subscription links. [免费VPN、免费梯子、免费科学上网、免费订阅链接、免费节点、精选、ClashX & V2Ray 教程]

⭐ 5.7k🍴 430 💻 PythonBasic Technical Setup
Updated 01 Nov 2026 Explore Tool
TheLartians avatar

ModernCppStarter

by TheLartians

🚀 Kick-start your C++! A template for modern C++ projects using CMake, CI, code coverage, clang-format, reproducible dependency management and much more.

⭐ 5.4k🍴 489 💻 CMakeCoding Knowledge Recommended
Updated 30 May 2026 Explore Tool
resumejob avatar

free-project-course

by resumejob

Free course for Resume, 整理和搜集网络免费的项目实战课程,包括 Java 项目实战,Python 项目实战,C++ 项目实战等

⭐ 5.4k🍴 505 💻 —Basic Technical Setup
Updated 23 Sep 2025 Explore Tool
TomBadash avatar

Mouser

by TomBadash

A lightweight, open-source, fully local alternative to Logitech Options+ for remapping Logitech HID++ mice.

⭐ 5.3k🍴 214 💻 PythonCoding Knowledge Recommended
Updated 19 Oct 2026 Explore Tool
a597873885 avatar

webfunny_monitor

by a597873885

【免费社区版】【企业版】Webfunny是一款集全链路监控和用户行为分析(埋点)系统于一体的大数据分析系统,我们致力于解决线上的疑难杂症和精细化分析业务数据;监控系统面向技术、埋点系统面向业务,两者配合使用,相得益彰。

⭐ 5.3k🍴 883 💻 JavaScriptCoding Knowledge Recommended
Updated 24 Sep 2026 Explore Tool

⭐️ A curated list of awesome forensic analysis tools and resources

⭐ 5.2k🍴 784 💻 —Basic Technical Setup
Updated 26 Sep 2026 Explore Tool
cssanimation avatar

css-animation-101

by cssanimation

Learn how to bring animation to your web projects

⭐ 5.1k🍴 225 💻 CSSCoding Knowledge Recommended
Updated 18 Jan 2024 Explore Tool

A free React / Next.js landing page template designed to showcase open source projects, SaaS products, online services, and more. Made by

⭐ 4.7k🍴 2.1k 💻 TypeScriptCoding Knowledge Recommended
Updated 12 Dec 2025 Explore Tool

Simple Light is a free landing page template built on top of TailwindCSS and fully coded in React / Next.js. Made by

⭐ 4.5k🍴 1.7k 💻 TypeScriptCoding Knowledge Recommended
Updated 12 Dec 2025 Explore Tool