Life & fun · alternatives · 2026
24 alternatives to Open CAT : Free CAT Exam Prep Portal
Everything a CAT aspirant needs, in one place
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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Cats attack on your screen
2019 · chromewebstore.google.com · its alternatives →
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CATS is a REST API Fuzzer and negative testing tool for OpenAPI endpoints. CATS automatically generates, runs and reports tests with minimum configuration and no coding effort. Tests are self-healing and do not require maintenance. - Endava/cats
2020 · github.com · its alternatives →
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Orbit, the cat▲127On each new tab, my cat will tell you how awesome you are.
2018 · chromewebstore.google.com · its alternatives →
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Procatinator▲89Random full screen cat gifs to music. Need I say more?
2014 · procatinator.com · its alternatives →
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It’s 2025, and somehow, there’s still no good self-hosted alternative to sites like ILoveIMG.com or OnlineTools.com... until now. OmniTools is here to fill that gap! It’s a free web-based, open-source self-hosted platform that brings together all your favorite online tools in one place—fully self-hosted and ad-free. Project: https://github.com/iib0011/omni-tools Why Omni Tools? Completely FREE & Open-Source – No hidden fees, ever. Self-Hosted – Keep control of your data, no tracking, no nonsense. All Your Favorite Tools in One Place – Image, coding, file utilities and…
2025 · github.com · its alternatives →
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2012 · cats.io · its alternatives →
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Postcat▲16A powerful open source, cross-platform API development tool.
2024 · github.com · its alternatives →
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Quizlet, a popular tool among high schoolers and college students used to study for tests recently made it's core functionality paid. In an era where Autodesk, Adobe, and Microsoft hold their proprietary software to their chests, it's exciting to see opensource alternatives come to compete with them. I'm 15, and I'm excited to do my part to keep education free for everyone. https://openlearn.vercel.app
2022 · its alternatives →
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free exam prep for popular IT certifications
2023 · examcatalog.com · its alternatives →
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Offline-first, open source and free forever.
May 2026 · focuscat.app · its alternatives →
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QuizKnit is an open source quiz creator to create quizzes by pasting in text or selecting from a large range of historical categories. Started as a very simple app for me to play around with OpenAI’s API last year then morphed into a portfolio project during my job search earlier this year. Now happily employed so decided to open source it. Right now, a user can create a quiz, take a quiz, save it and share the quiz with other people using a URL. You can try out the full working application at https://quizknit.com Github Links: Frontend:…
2025 · quizknit.com · 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 →