OpenAssistant
Alternative to Artificial intelligence chatbot/ LLM
Abandoned
Projects that stopped shipping: dormant, abandoned or archived. Star counts stay high long after maintenance stops.
Stars never decay, so a dead project can look alive for years. These repositories have stalled commit history, no recent release, or an archive flag — treat any dependency on them as technical debt with a due date. This view holds 108 projects, refreshed August 2026.
Alternative to Artificial intelligence chatbot/ LLM
Alternative to Trello, Notion, Asana, Kanban board
Alternative to Trello, Notion, and Asana
Alternative to Icons
Customer Relationship Management (CRM)
Personal relationship manager, and a new kind of CRM to organize interactions with your friends and family.
Alternative to Algolia
Neural search framework for 𝙖𝙣𝙮 kind of data (including images)
Alternative to Zendesk
UVDesk community is a service oriented, event driven extensible opensource helpdesk system that can be used by your organization to provide efficient support to your clients effortlessly whichever way
Alternative to Smart spreadsheet
Alternative to AI code completion
Wikis
Simple, Git-powered wiki with a sweet API and local frontend.
Alternative to Workflow automation
Business automation tool that lets you connect different services like Twitter, Slack, and more to automate your business processes (alternative to Zapier).
Miscellaneous
Hassle-Free Way to Self-Host Google Fonts. Get eot, ttf, svg, woff and woff2 files + CSS snippets.
Alternative to Retool, Internal tools
Low-code platform for developers to build internal tools in minutes.
Alternative to Invoicing
Games
Minimalist text adventure game for your browser.
Alternative to AWS SageMaker
Production infrastructure for machine learning
Proxy
IPv4 over DNS tunnel solution, enabling you to start up a socks5 proxy listener.
Network Utilities
Lightweight network IP scanner with notifications, history, export to Grafana.
Alternative to Roam Research
Knowledge base plugin for VS Code
Alternative to Looker
Code-based BI tool. Write reports using SQL and markdown and they render as a website.
Alternative to AirTable
Extendable Airtable-like spreadsheet UI for databases
Alternative to Integromat
A flexible event/agent & automation system with lots of bees 🐝
Alternative to Roam Research
Knowledge graph for research and notetaking
Alternative to Internal tools
Alternative to Intercom, Zendesk
Live chat widget
Alternative to Landingfolio
The NPM for Design Engineers
Media Management
Download YouTube content built using yt-dlp.
Alternative to Time-series database
Task Management & To-do Lists
Single-page minimalist kanban board; compact, highly readable and quick to use.
Alternative to Fivetran
No-code data pipelines builder
Alternative to Vector database
A transactional, relational-graph-vector database that uses Datalog for query. The hippocampus for AI!
Alternative to Notion
Collaborative workspace for developer teams
Alternative to Heroku
Serverless cloud deployment platform
Alternative to AWS SageMaker
YAML-based pipeline builder for ML models
Alternative to Okta, Auth0
Authorization building framework
Alternative to AWS SageMaker
Platform for generating embedding vectors
E-commerce
Drag and Drop CMS and online shop.
Bookmarks and Link Sharing
An open source, self-hosted bookmarks and link sharing platform.
Alternative to 1Password, Password manager
Password manager for teams and individuals
Alternative to Other lists of free / software
Curated list of open-source, free as in freedom software.
Media Streaming
Turn your choice of Linux-capable hardware into an audio and video source for a television or powered speakers (alternative to Chromecast).
Search Engines
Tool for indexing large amounts of both documents (PDF, Word, HTML) and structured (CSV, XLS, SQL) data for easy browsing and search. It is built with investigative reporting as a primary use case.
Alternative to Shopify, Ecwid
Headless e-commerce platform
Alternative to Canny
A free, open source, self-hosted customer feedback tool 🦊
Analytics
Web analytics and dashboard (alternative to Google Analytics).
File Transfer
Theme built to enhance the experience of browsing web directories, using the mod_autoindex Apache module and some CSS to override the default style of a directory listing.
Alternative to Internal tools
Alternative to Checkly, Postman
API Testing and Monitoring
Photo Galleries
Fast server-based photo management system for large collections of images. Includes face detection, face & object recognition, powerful search, and EXIF Keyword tagging. Runs on Linux, MacOS and Windo
Showing 48 of 108
Existence is not competition. A project competes with you only if it is maintained, findable, deployable by your buyer and licensed for their use. Most projects fail at least one of those tests. Run all four before you shelve an idea — or before you assume you have a clear run.
Stars are a lifetime counter with no decay, so a project abandoned in 2022 still looks like a leader in 2026. In this dataset 222 projects are dormant, abandoned or archived, and several of them sit in the top decile by stars. Sort by momentum and commit activity instead — popularity tells you the project was once interesting, maintenance tells you whether it will still be there when your customer needs a bug fixed.
When a prospect says 'we could just self-host the free one', they are usually comparing your price against zero. The real comparison is your price against hosting, upgrades, backups, security patching, integration work and the engineer hours behind all of it. Quantifying that number is the single most effective response to a free-alternative objection — and it is more persuasive coming with a spreadsheet than with a feature list.
Founders treat licensing as a legal footnote and then discover it dictates strategy. Permissive licences allow closed commercial forks, which is why so many managed services exist around MIT and Apache projects — and also why your differentiation cannot be the code itself. Copyleft licences, especially AGPL, remove the closed-wrapper option entirely, which reduces competition but restricts you too. Source-available licences exist precisely to stop the wrapper business.
Search this database by category and by the commercial product you would replace. It covers 1665 projects across 130 categories, each mapped to the paid tool it substitutes. If your category shows a "Crowded" verdict, a maintained free version almost certainly exists and your positioning has to account for it.
No. It means free is your price anchor. Plenty of large companies were built next to a good open-source project — the ones that failed were the ones selling the same job at a price the free tool made indefensible. Find the part of the job the project deliberately does not do, and sell that.
Each category gets a 0–100 score built from three inputs: how many implementations exist, what share of them are still actively maintained, and how far ahead the leading project is compared with the category median. 62+ is Crowded, 38–61 Contested, under 38 Open. 11 categories are Crowded and 88 are Open.
A project has momentum when it committed code in most of the last twelve months, shipped a release recently and is not archived. 911 of 1665 projects qualify. This is the single most useful filter here — it strips out the popular-but-dead repositories that make a category look more competitive than it is.
It depends entirely on the licence. MIT, Apache and BSD let you build and sell closed products on top. GPL and AGPL require derivative work to stay open, and AGPL extends that to network use, which blocks most SaaS wrappers. BSL, SSPL and Commons Clause are source-available, not open source, and usually restrict competing commercial use outright.
IdeaProof scores your idea against live competitors, market size and 1,000+ documented startup failures in about two minutes.