Showing 286 open source projects for "free"

View related business solutions
  • Ship Agents Faster Icon
    Ship Agents Faster

    Transform your applications and workflows into powerful agentic systems at global scale.

    Gemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
    Get Started Free
  • Your monitoring isn't a stack. It's a pile. Fix that. Icon
    Your monitoring isn't a stack. It's a pile. Fix that.

    Errors, performance, logs, uptime. One install, one invoice, one UI.

    Replace Datadog, New Relic, and Sentry without adding three more dashboards.
    Free 30 days.
  • 1
    FlClash

    FlClash

    A multi-platform proxy client based on ClashMeta

    FlClash is an open-source, ad-free cross-platform GUI client for ClashMeta proxy on desktop and mobile. Built with Flutter and Go, it offers a Material You UI, supports Android, Windows, macOS, and Linux, and features WebDAV syncing, subscription link support, dark mode, and advanced proxy rules for customized network routing.
    Downloads: 1,128 This Week
    Last Update:
    See Project
  • 2
    Frappe Books

    Frappe Books

    Free Desktop book-keeping software for small-businesses & freelancers

    Frappe Books is a free and open source desktop book-keeping software that's simple and well-designed to be used by small businesses and freelancers. It's got everything you need from a small business accounting tool: invoices, billing, payments, reporting and more. It's made to work offline using a local SQLite file as the database, so you don't have to be dependent on a Cloud service provider.
    Downloads: 13 This Week
    Last Update:
    See Project
  • 3
    NocoDB

    NocoDB

    Open Source Airtable Alternative

    NocoDB is an open source #NoCode platform that turns any database into a smart spreadsheet. It is free & self-hostable. Let your imagination be thy limit. Create unlimited grid view, gallery view, form view from your own data. Search, sort, filter columns and rows with ultra ease. Collaborate just like spreadsheets. Invite your team with fine-grained Access Control. Share views publicly and also with password protection. Build automation with you favorite apps: Microsoft Teams Slack, Discord, Whatsapp, Twilio, Email & SMS.
    Downloads: 54 This Week
    Last Update:
    See Project
  • 4
    Invoice Ninja

    Invoice Ninja

    Free and Open Source Invoicing, Expenses & Time-Tracking

    Invoice Ninja is a free and open source invoicing, expenses and time-tracking app built with Laravel and Flutter. It offers a plethora of great features, including custom branded invoice design, recurring invoicing and auto-bill clients, real-time quote creation and custom proposals, expense reporting and so much more! Invoice Ninja is also capable of handling online payments from more than 40 payment gateways, including Stripe, PayPal and WePay.
    Downloads: 21 This Week
    Last Update:
    See Project
  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • 5
    alpha_vantage

    alpha_vantage

    A python wrapper for Alpha Vantage API for financial data.

    Alpha Vantage delivers a free API for real time financial data and most used finance indicators in a simple json or pandas format. This module implements a python interface to the free API provided by Alpha Vantage. You can have a look at all the API calls available in their API documentation. For code-less access to the APIs, you may also consider the official Google Sheet Add-on or the Microsoft Excel Add-on by Alpha Vantage.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 6
    Open Source Point of Sale

    Open Source Point of Sale

    Open Source Point of Sale is a web based point of sale application

    Open Source Point of Sale (OSPOS) is a free and open-source point-of-sale system for small and medium-sized businesses. It helps manage sales, inventory, and customer data through a user-friendly web interface. OSPOS is highly customizable and supports barcode scanning, multi-language support, and detailed reporting, making it ideal for retail stores, restaurants, and small businesses seeking an affordable POS solution.
    Downloads: 32 This Week
    Last Update:
    See Project
  • 7
    NexoPOS

    NexoPOS

    The base version of NexoPOS, which is a web-Based Point Of Sale (POS)

    NexoPOS 4 is a free point-of-sale system built using Laravel, TailwindCSS, Vue, and other open-source resources. This POS System focuses on utilities and functionalities to offer most businesses all the tools they need to manage better their store. NexoPOS includes a responsive and beautiful dashboard that eases the interaction either on a smartphone, tables, or desktops.
    Downloads: 22 This Week
    Last Update:
    See Project
  • 8
    Superalgos

    Superalgos

    Free, open-source crypto trading bot, automated bitcoin trading

    Free, open-source crypto trading bot, automated bitcoin/cryptocurrency trading software, algorithmic trading bots. Visually design your crypto trading bot, leveraging an integrated charting system, data-mining, backtesting, paper trading, and multi-server crypto bot deployments. Superalgos is not just another open-source project. We are an open and welcoming community nurtured and incentivized with the project's native Superalgos (SA) Token, building an open trading intelligence network. ...
    Downloads: 3 This Week
    Last Update:
    See Project
  • 9
    FOSSBilling

    FOSSBilling

    Empower your hosting business with FOSSBilling

    FOSSBilling is a free and open-source billing and client management solution tailored for online services businesses, particularly those in the web hosting space. It delivers a suite of tools that automate the creation and delivery of invoices, track payments, manage customer accounts, and handle service provisioning, all from a centralized web interface.
    Downloads: 6 This Week
    Last Update:
    See Project
  • $300 Free Credits to Build on Google Cloud Icon
    $300 Free Credits to Build on Google Cloud

    New to Google Cloud? Get $300 in credits to explore Compute Engine, BigQuery, Cloud Run, Gemini Enterprise Agent Platform, and more.

    Start your next project with $300 in free Google Cloud credit. Spin up VMs, run containers, query petabytes in BigQuery, or build agents with Gemini Enterprise Agent Platform. Once your credits are used, keep building with 20+ always-free tier products including Compute Engine, Cloud Storage, GKE, and Cloud Run functions. No commitment required—just sign up and start building.
    Claim $300 Free
  • 10
    Frankfurter

    Frankfurter

    Currency data API

    Frankfurter is an open-source currency exchange rate API that provides reliable financial data based on reference rates from institutional sources such as the European Central Bank. It is designed to be simple, transparent, and free to use, with no API key requirements or usage limits, making it particularly attractive for developers and small projects. The API offers endpoints for retrieving the latest exchange rates, historical data, and time-series data, enabling both basic conversions and more advanced financial analysis. It allows users to specify base currencies and filter results by selected currencies, making responses efficient and customizable. ...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    Roboquant

    Roboquant

    User-friendly and completely free algorithmic trading platform

    Roboquant is an open-source algorithmic trading platform written in Kotlin. It is flexible, user-friendly and completely free to use. It is designed for anyone serious about algo-trading. So whether you are a beginning retail trader or an established trading firm, Roboquant can help you to quickly develop robust and fully automated trading strategies. But perhaps most important of all, it is blazingly fast. Roboquant is orders of magnitude faster than most other algo-trading platforms. ...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    ThetaGang

    ThetaGang

    ThetaGang is an IBKR bot for collecting money

    ThetaGang is an IBKR trading bot for collecting premiums by selling options using "The Wheel" strategy. The Wheel is a strategy that surfaced on Reddit but has been used by many in the past. This bot implements a slightly modified version of The Wheel, with my own personal tweaks. The strategy, as implemented here, does a few things differently from the one described in the post above. For one, it's intended to be used to augment a typical index-fund-based portfolio with specific asset...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    The XRP Ledger

    The XRP Ledger

    A decentralized cryptographic ledger

    ...It allows for really fast settlement of transactions- within 3-5 seconds- without a central intermediary and in a secure distributed database. The native digital asset on the XRP Ledger is the XRP. A public,counterparty-free asset, it is designed to bridge many different currencies being used worldwide, and is available for anyone to access and trade on the open market. XRP is faster, less costly and more scalable than any other digital asset today, and is currently being used by the company Ripple to build technology that can transform global payments. ...
    Downloads: 2 This Week
    Last Update:
    See Project
  • 14
    VisiData

    VisiData

    A terminal spreadsheet multitool for discovering and arranging data

    ...Code in the stable branch of this repository, including the main vd application, loaders, and plugins, is available for use and redistribution under GPLv3. VisiData is a free, open-source tool that lets you quickly open, explore, summarize, and analyze datasets in your computer’s terminal. VisiData works with CSV files, Excel spreadsheets, SQL databases, and many other data sources.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 15
    Akaunting

    Akaunting

    Online Accounting Software

    Online accounting software designed for small businesses and freelancers. Akaunting is built with modern technologies such as Laravel, VueJS, Tailwind, RESTful API etc. Thanks to its modular structure, Akaunting provides an awesome App Store for users and developers.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    Liberapay

    Liberapay

    Source code of the recurrent donations platform Liberapay

    ...It operates as a nonprofit service that allows users to financially support individuals or teams on a weekly, monthly, or yearly basis without expecting rewards in return. The platform is particularly focused on funding open-source software, free knowledge, and creative work, helping contributors maintain long-term projects through stable income streams. Liberapay distinguishes itself by not taking a commission from donations, instead relying on voluntary contributions to sustain the platform itself. It supports multiple currencies and integrates with payment processors such as Stripe and PayPal, enabling global participation. ...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    Aronium Free Windows Point of Sale

    Aronium Free Windows Point of Sale

    Easy to use, modern and reliable POS solution.

    ...Help is just an email away! Made for Windows Turn your PC into a functional Point of Sale. Worldwide Used in more than 40 countries every day. Is Aronium POS free? Yes it is. You can use free Aronium version as long as you like. There are no obligations or hidden costs. However, keep in mind that Aronium is a "freemium" product, meaning that there is a free version, and other paid versions or extensions offered as more advanced alternative.
    Downloads: 86 This Week
    Last Update:
    See Project
  • 18
    Free Invoicing Software for 2025

    Free Invoicing Software for 2025

    Simple Invoicing program for Desktop written in vba and Access

    ...The application can now produce a Revenue Graph, you can add Inventory on the Invoice, and print mail labels. The MS-Access Runtimes for 32/64 bits are included. The ZIP file contains all program code, and program elements needed to work on. Find other free programs at: https://gotomarcus.com/main/marcus/index.php or gotomarcus.com/currentswms/index.php
    Downloads: 8 This Week
    Last Update:
    See Project
  • 19
    Apache OpenOffice

    Apache OpenOffice

    The free and Open Source productivity suite

    Free alternative for Office productivity tools: Apache OpenOffice - formerly known as OpenOffice.org - is an open-source office productivity software suite containing word processor, spreadsheet, presentation, graphics, formula editor, and database management applications. OpenOffice is available in many languages, works on all common computers, stores data in ODF - the international open standard format - and is able to read and write files in other formats, included the format used by the most common office suite packages. ...
    Leader badge
    Downloads: 237,813 This Week
    Last Update:
    See Project
  • 20

    Excel to Tally Import Templates Free

    Excel to Tally Import Templates Free 100%

    * XLTOOL Excel To Tally Data Import Migration Software. * Directly import bulk data to Tally from Excel. * Unlimited import Excel data into Tally. * Unlimited Multi Ledgers, Stocks, Ref. No, Cost Centers, Vat & More in each Voucher. * Import All Vouchers Types and Master Data into Tally. * Import Forex Mutli Currency Vouchers into Tally. * Import Single Debit / Credit Vouchers Entry. * Import Multiple Ledgers Debit / Credit Vouchers Entry. * Invoice & Accounting...
    Downloads: 11 This Week
    Last Update:
    See Project
  • 21
    Free Invoicing Software for Auto Shops

    Free Invoicing Software for Auto Shops

    An Invoicing program for Auto Shops written in vba and MS-Access.

    ...It is for a small, or personal, Auto Repair type business. It should give you practice in learning/use of Invoicing, and installing on the desktop, and programming in vba and MS-Access. Note that the free MS-Access Runtime is with the download . You need MS-Access if you want to work with the program code, or print reports (part of Office 365). The program processes Invoicing, Appointments, and Quotes, and produces reports for A/R, Inventory, History and Accounting Purposes. See the readme file, and manual for greatest use of this App. ...
    Downloads: 6 This Week
    Last Update:
    See Project
  • 22
    Custom Billing Server

    Custom Billing Server

    Linux-Based Billing And Business Application Server For FREE use.

    Do you offer services or tangible products that can not be scanned for invoicing? Are you still creating your invoices and quotes on paper, or via Word/Excel etc? They say in business that, TIME IS MONEY! So why spend a lot of time creating invoices or estimates for clients when you can use a suitable tool to manage your clients, products, or services, create professional-looking invoices or estimates, and print or email them within seconds? This Custom Billing Server includes...
    Leader badge
    Downloads: 44 This Week
    Last Update:
    See Project
  • 23
    Dolibarr ERP - CRM

    Dolibarr ERP - CRM

    Open source ERP and CRM web software for business

    ...This is a modular product, than can be enhanced with tons of external modules (to provide you features not available by default) from https://www.dolistore.com Download Dolibarr ERP - CRM here or sign up for 15-day free trial of the cloud-based application with free updates and support at one of the Cloud providers https://saas.dolibarr.org/
    Leader badge
    Downloads: 3,799 This Week
    Last Update:
    See Project
  • 24
    Invoiso

    Invoiso

    Free Invoice & Billing Software for Windows, Linux & Mac

    Free offline invoice software for Windows, Linux and Mac. Create professional PDF invoices, manage clients and products - no internet, no subscription, no account needed. Invoiso is a free, open-source desktop invoicing app for small businesses, shops, and freelancers on Windows and Linux. All data stays on your device — no internet required, ever.
    Leader badge
    Downloads: 57 This Week
    Last Update:
    See Project
  • 25
    Akaunting

    Akaunting

    Free and Online Accounting Software

    From invoicing to expense tracking to accounting, Akaunting has all the tools you need to manage your money online, for free. That's right, completely free. There is no limited or trial version. No hidden charges or setup fees. See your financials online anytime, anywhere on your computer, tablet or phone. We're disrupting the closed-source dominated market and introducing the power of Open Source to accounting world. Akaunting is built with modern technologies such as Laravel, Bootstrap, jQuery, RESTful API etc.
    Leader badge
    Downloads: 18 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • 5
  • Next
Auth0 Logo