Dify.ai
Software Development
Build, test and deploy LLM applications.
Actively maintained
Real momentum
Apache-2.0, Commons-Clause
Every open-source software development project we track, scored on maintenance, momentum and licence — so you can tell the live competitors from the abandoned repositories.
Software Development has 100 open-source implementations in this dataset, of which 58 show real momentum and 3 are dormant or abandoned. The leader is Dify.ai with 153k stars against a category median of 4.7k — roughly 33x the typical project. Saturation score 80/100: Crowded. Free, maintained alternatives already dominate this category.
Assume every prospect can find a free version in five minutes. Your wedge has to be something open source structurally cannot deliver: compliance, support SLAs, managed hosting at scale, or a workflow the maintainers refuse to build.
The practical test in this category: Dify.ai is the reference implementation at 153k stars, and 58 of 100 projects are still shipping. A buyer evaluating you will find at least one maintained free option, so your pricing and positioning have to answer "why not self-host Dify.ai?" in the first minute.
Software Development
Build, test and deploy LLM applications.
Alternative to Postman, API development
Fast and beautiful API request builder.
Software Development
VS Code in the browser, hosted on a remote server.
Alternative to Firebase
Backend for your next SaaS and Mobile app in one file.
Alternative to Code hosting & collaboration
Git with a cup of tea! Painless self-hosted all-in-one software development service, including Git hosting, code review, team collaboration, package registry and CI/CD.
Alternative to Firebase, Backend-as-a-Service
End to end backend server for web, native, and mobile developers 🚀.
Alternative to Linear, JIRA, Trello, Height, Project Management, Bug tracking
Track issues, epics, and product roadmaps in the simplest way possible (alternative to JIRA, Linear and Height).
Alternative to Code hosting & collaboration
Painless self-hosted Git Service written in Go.
Alternative to DataDog, NewRelic, Monitoring/Observability
Powerful error tracking platform with wide language support and a robust API.
Software Development
Microservice API Gateway and Platform.
Alternative to Retool, Internal tools
Build admin panels, CRUD apps and workflows. Build everything you need, 10x faster.
Alternative to Retool, Internal tools
Low-code framework to build & deploy internal tools with minimal engineering effort (alternative to Retool and Mendix).
Software Development
A powerful and easy-to-use website building tool (documentation in Chinese).
Software Development
LLM engineering platform for model tracing, prompt management, and application evaluation. Langfuse helps teams collaboratively debug, analyze, and iterate on their LLM applications such as chatbots o
Software Development
Fast, instant realtime GraphQL APIs on Postgres with fine grained access control, also trigger webhooks on database events.
Software Development
Integration platform for AI agents & LLMs with support for 250+ apps and custom tools.
Alternative to Retool, Internal tools
Build and automate internal tools, admin panels, dashboards, CRUD apps, and more, in minutes (alternative to Outsystems, Retool, Mendix, Appian).
Software Development
All-in-one project management platform (alternative to Linear, Jira, Slack, Notion, Motion).
Software Development
Evaluate, test, and ship LLM applications with a suite of observability tools to calibrate language model outputs across your dev and production lifecycle.
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 Asana, Trello
Manage your projects, tasks and goals. Collaborate via work packages and link them to your pull requests on Github.
Software Development
Web-based environment for interactive and reproducible computing.
Software Development
Remote development machines on your own infrastructure.
Alternative to Project Management
Lean project management system for small teams and startups helping to manage projects from ideation through delivery.
Software Development
Fast and scalable open source API Gateway. Out of the box, Tyk offers an API Management Platform with an API Gateway, API Analytics, Developer Portal and API Management Dashboard.
Software Development
Git platform powered with easy installation, high extensibility & GitHub API compatibility (alternative to GitHub).
Software Development
Project management platform focused on simplicity and efficiency.
Alternative to Backend-as-a-Service
Complete backend that fits into 1 YAML file.
Software Development
Self Hosted Git repository management, code reviews, issue tracking, activity feeds and wikis.
Software Development
Open source workspace server and cloud IDE.
Software Development
High-performance API Gateway.
Alternative to LaunchDarkly, Feature management/ Feature flag
Dashboard, API and SDKs for adding Feature Flags to your applications (alternative to LaunchDarkly).
Software Development
Web-based translation tool with tight version control integration.
Software Development
Open, sub-millisecond, single-executable FireBase alternative with type-safe REST & realtime APIs, built-in JS/TS runtime, auth & admin UI.
Software Development
Web browser based IDE for R.
Software Development
Feature flag solution with support for multiple data backends (alternative to LaunchDarkly).
Software Development
Take back control of your GitHub Notifications.
Software Development
API to compile and run source code.
Alternative to Lokalise, Transifex, Crowdin, POEditor
Developer & translator friendly web-based localization platform enabling users to translate directly in the app they develop.
Alternative to Pusher
Open-source webhooks as a service that makes it super easy for API providers to send webhooks.
Alternative to Retool
Build internal tools, BI dashboards, admin panels, CRUD apps and workflows in minutes using YAML / JSON on an self-hosted, open-source platform. Connect to your data sources, host via Serverless, Netl
Software Development
SQL-only dynamic website builder.
Software Development
Translation management platform for teams.
Alternative to Postman
Open-source API management platform which helps to build and manage REST APIs.
Software Development
Simple, complete, and lightweight feature flag solution (alternative to LaunchDarkly).
Software Development
No-code database application builder for web and mobile applications. One platform for user interface, data backend, durable workflows, email, PDF generation, and AI applications.
Alternative to Feature management/ Feature flag
Enterprise-grade feature flag platform that you can self-host.
Software Development
Turns any SQL/NoSQL/Structured data into Restful API.
Showing 48 of 100
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3 open-source options
3 open-source options
100 maintained · leader Mastodon
40 maintained · leader revealjs
36 maintained · leader Jellyfin
28 maintained · leader copyparty
29 maintained · leader Strapi
27 maintained · leader HyperSwitch
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 149 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. 736 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.
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