Dev tools · alternatives · 2026
24 alternatives to AltFreeStack
Curated free and open-source alternatives to paid SaaS.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
200+ open source alternatives to popular B2B tools
2021 · btw.so · its alternatives →
- 2
Discover open source alternatives to your proprietary SaaS
2022 · opensourcealternative.to · its alternatives →
- 3
- 4OS
hey makers, I've spent the whole night to compile this list out of > winners of Product Hunt > best dev tools on DevHunt > recently active on GitHub > most internet backlinks > most mentions as "alternative to .." Let me know if I should add anything there.
2023 · osssoftware.org · its alternatives →
- 5
Open SaaS▲505Open-source & 100% free React & Node.js SaaS starter
2024 · github.com · its alternatives →
- 6
Unstack▲611The world's fastest free all-in-one website builder
2020 · elasticpath.com · its alternatives →
- 7
Open SaaS 2.0▲438I launched Open SaaS about a year and a half ago and surprisingly it’s become one of the most popular free SaaS boilerplate starters on github (https://github.com/wasp/open-saas). After 2 years of work total, I’m pleased to launch what I’m calling “Open SaaS v2.0”. Here’s a breakdown of all the features and updates I’ve made to it over time: * New Big, Shiny Things for v2.0 * - Complete redesign with Shadcn UI for a modern and consistent look (themeability coming soon...). - Script that autogenerates an LLM-friendly version of the documentation…
2025 · opensaas.sh · its alternatives →
- 8
UniDeck▲359Hi everyone! For the past few months we have improved upon our product called UniDeck, an app that allows you to connect different services and monitor their data. From every day services like Google and Github to your in-house api and tools, everything can be connected to a single dashboard and shared with your team for easy access, monitoring and collaboration. We have worked hard in the past 6 months since our previous launch to add a lot of features work on user feedback. UniDeck now has first class support for more than 15 services and has advanced widgets including tables and charts…
2025 · unideck.app · its alternatives →
- 9OS
I got tired of collecting open source projects in my chrome bookmarks so I decided to compile a curated list of: - Recently active projects on GitHub - Mostly dev tools (but also productivity, analytics) - Projects which are "Alternative to X software" My bookmarks are finally empty:D If you have a great open source tool you use, I'd be glad to hear your suggestions. Also, any feedback is greatly appreciated.
2025 · alternativeoss.com · its alternatives →
- 10
- 11
500+ Best free & paid tools for SaaS marketers
2022 · dansiepen.io · its alternatives →
- 12
Free replacements for Slack, Notion, Figma & 60+ paid tools
May 2026 · osalfinder.com · its alternatives →
- 13
AlterBase▲189Hi, I'm software dev with 2x exit. I collected some affordable alternatives to expensive and well-known tools for a while. Mostly for personal use. Now I built the platform and added them here. Also, community help to grow with their tools and suggestions. Enjoy and if you have any alternative for popular softwares or have a suggestions please submit here to make it the internet's biggest alternative software platform.
Nov 2025 · alterbase.co · its alternatives →
- 14
Free SaaS boilerplate based on React, Django and AWS
2023 · apptension.com · its alternatives →
- 15
Scoutflo▲228The first-ever commercial open-source marketplace - for Free
2023 · atlas.scoutflo.com · its alternatives →
- 16
SaaS Blocks 2.0▲188300+ open-source and paid tools to build a SaaS application
2022 · saasblocks.io · its alternatives →
- 17AD
Hi, Piotr here I was collecting nice open-source companies for quite some time now. Mostly to take some inspiration and learn from their code. Last week, I though it would be fun to learn this Astro thing everyone's talking about. So I thought building a directory website out of this collection was pretty good idea. After 2 days of building, OpenAlternative was born. It's a community driven list of open source alternatives to proprietary software and applications. Enjoy and thank you for your support!
2024 · openalternative.co · its alternatives →
- 18
GitHub list of open-source alternatives to well-known SaaS
2022 · its alternatives →
- 19
A list of free and affordable tools for building a SaaS.
2024 · saasstarterstack.com · its alternatives →
- 20
- 21
Winners of PH, DevHunt, HackerNews, GitHub & viral/trending
2023 · osssoftware.org · its alternatives →
- 22
Getusefeed▲64Feature voting & public roadmap for small SaaS teams.
Jun 2026 · getusefeed.com · its alternatives →
- 23
Open Micro SaaS▲126Launch micro SaaS apps fast with Open Source Next.js toolkit
2024 · open-micro-saas-docs.vercel.app · its alternatives →
- 24
Find alternatives to famous products
2024 · microlaunch.net · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →