AI · alternatives · 2026
24 alternatives to Open Source Alternative Finder
Free replacements for Slack, Notion, Figma & 60+ paid tools
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
Open SaaS▲505Open-source & 100% free React & Node.js SaaS starter
2024 · github.com · its alternatives →
- 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 →
- 5AD
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 →
- 6OS
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 →
- 7
OpenAlternative▲459Discover open source alternatives to popular software
2024 · openalternative.co · its alternatives →
- 8
Hey everyone, A couple years ago, I got into programming and fell down the rabbit hole of open-source software. I started realizing a lot of the commercial software I used had open-source alternatives. In 2020, those alternatives were good but not perfect replacements. With LLMs entering the scene, there are even more open-source alternatives now and they're narrowing the gap between proprietary options. LLMs also got me thinking: will people continue using proprietary or opensource applications in the future when they can build their own personal application tailored specifically for their…
2020 · opensource.builders · its alternatives →
- 9
SaaS AI Tools▲426400+ generative AI tools & daily AI news
2023 · saasaitools.com · its alternatives →
- 10
Discover open source alternatives to popular SaaS software
2025 · openalternative.co · its alternatives →
- 11
GitHub list of open-source alternatives to well-known SaaS
2022 · its alternatives →
- 12
The best open-source alternatives for you next maker project
2020 · opensourcestash.com · its alternatives →
- 13
Scoutflo▲228The first-ever commercial open-source marketplace - for Free
2023 · atlas.scoutflo.com · its alternatives →
- 14AD
Hi guys, I want to share the recent project i developed. I built AlternateOSS, a directory of free, open source alternatives and competitors to popular software. Currently, i have listed 200+ tools so far and organized them carefully based on their main functionalities. I ranked them based on its category relevancy and feature completeness. Some technical details & features: - fully static site built with Astro - View Transition API for smooth navigation - Instant/static search with Astro static endpoints If you have an open source project that can be an alternative to popular software,…
2024 · alternateoss.com · its alternatives →
- 15
SaaS Blocks 2.0▲188300+ open-source and paid tools to build a SaaS application
2022 · saasblocks.io · its alternatives →
- 16
The official Slack AI product looks great, but with limited access and add-on pricing, I decided to open-source the version I built. Especially for all the communities on Slack that would have to convert to paid and buy the upgrade to access the official SlackAI product/add-on which is not going to be financially viable in most cases. There's no plan to sell anything, just something I built as a way to learn some new tools that I thought others might get use out of. The repo is a ready-to-run slack app that provides thread summaries and channel overviews on demand using OpenAI (heavy…
2024 · github.com · its alternatives →
- 17
KillSaaS is my answer to subscription software in the AI era. I'm building this because I believe small teams can use modern AI tools to create free alternatives to giants like Figma and DocuSign in weeks, not years. We're creating a platform where developers vote on which SaaS to replace, then build it together as open source. wdyt?
2025 · kill-saas.com · its alternatives →
- 18
- 19
Free open source alternatives to paid software
Jul 2026 · oss-finder.com · its alternatives →
- 20
Easiest and smartest way to search for the AI tool you want
2023 · its alternatives →
- 21CL
Hey people! I have been compiling a database of opensource alternatives and I'm super proud of it so far. It serves as a searchable directory for high-quality opensource. After tons of hours I've managed to compile a database of 1000+ opensource software. I've seen other sites which have the same premise and all the GitHub Awesome Lists, but they lack in showing if the repo is active, abandoned, experimental, buggy/unstable, has a restrictive license or corporate influence like this does. Thanks for your time, if you have any recommendations for features/additions I'd love to hear.
Feb 2026 · opensrc.me · its alternatives →
- 22
Winners of PH, DevHunt, HackerNews, GitHub & viral/trending
2023 · osssoftware.org · its alternatives →
- 23
Resources for searching and analyzing online information
2016 · namecheap.com · its alternatives →
- 24
300+ Paid Tools. 300+ Free Alternatives. Zero Paywalls
Jul 2026 · theresfreetoolforthat.lovable.app · 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 →