AI · alternatives · 2026
24 alternatives to JigsawCat AI
TL;DR: I built a puzzle platform that secretly gives you free access to all mainstream AI art models (GPT-4o, Flux, Stable Diffusion, Google Imagen 4+). Users think they're just playing puzzles, but they're actually getting unlimited AI image generation by earning credits through gameplay. No need to pay, no generation limits. I built JigsawCat (https://jigsawcat.ai) after getting frustrated with expensive AI art subscriptions. Midjourney costs $10-60/month, GPT-4o requires ChatGPT Plus at $20/month, and most platforms have strict daily limits. Meanwhile, I loved solving…
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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Playground▲198We build AI agents to find vulnerabilities in other AI agents. The playground started as an internal tool that we used to test our own offensive agent Nyx. But we realised that hacking an AI is about have as wide a distribution of attacks as possible, especially those which aren't in the distribution of the models. So we are launching playground as a platform to crowdsource agent jailbreaks. And although hacking AI is super fun and we are sure people will do it for free, we want to reward those who help us push forward the offensive frontier of AI. So we are committing $100K in prizes over…
Jul 2026 · playground.fabraix.com · its alternatives →
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Dear Hacker News, I'm kindly asking for your participation in the open beta for my AI-managed mini-games website. Thank you in advance! For a limited time window, I'm setting the all-free feature flag to true. I hope you have a lot of fun exploring the AI's sense for games! Here and there, I tweaked it to help with visual consistency. I would be deeply grateful if you opted into analytics. $2,300 in API tokens... Cheers!
Jun 2026 · minigames.world · its alternatives →
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2021 · colab.research.google.com · its alternatives →
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Hey HN, I built this simple puzzle generator to play around with wasm a bit. It's open source if anyone wants to play around with the code https://github.com/lnenad/puzzlip
2024 · puzzlip.com · its alternatives →
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Hi Hackernews! Mage is the incredibly simple and fun platform with over 50+ top, custom Text-to-Image AI models as well as Text-to-GIF for all to create with their imagination, unlimited & unfiltered. Start with fast and unlimited Stable Diffusion for free! The first Mage link posted ever was here on HackerNews back in September with the promise of Free, Fast, & Unfiltered Stable Diffusion. Turns out, avoiding the h*ll of pip installs and CUDA errors while enjoying this incredible tech was (and is) a popular idea! Since then, we've grown into an incredible community, with a lively Discord…
2023 · mage.space · its alternatives →
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One prompt, one AI model, one shot. Write a single prompt, run it once with any model, and the result is your entry. Six winners take a GTA VI copy (first place a PS5 too), one of them chosen by community vote. Winners announced at the World Models & GenAI Mixer @ SIGGRAPH in LA on July 20.
Jul 2026 · 1shotchallenge.ai · its alternatives →
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Free & Unlimited AI Image Generator, No Login Required.
2025 · artgenai.top · its alternatives →
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Hey HN, I'm Damiano Rodriguez, and I've been working solo on a project called Caisual Games. It's a free platform where anyone can create web games just by describing them with their voice. Here's how it works: You simply describe your game idea ("Make a cookie clicker game with 5 upgrades"), and the platform generates a playable web game in seconds using HTML and JavaScript. There's no coding required and no downloads needed—you can create and play directly in your browser. What's more, anyone can improve a published game, fostering a collaborative environment for game creation. The…
2024 · caisual.com · its alternatives →
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To keep busy over the weekend, I decided to build a small AI Art collection site .... and ended up building an amusingly enjoyable AI art buying web-game where you basically collect beautiful AI art using virtual (not real) dollars. Enjoy => https://yoomter.com
2024 · yoomter.com · its alternatives →
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I'm a solo dev in Taiwan. I built 4 AI agents that handle content, sales leads, security scanning, and ops for my tech agency — all on Gemini 2.5 Flash free tier (1,500 req/day). I use ~105. Monthly LLM cost: $0. Architecture: 4 agents on OpenClaw (open source), running on WSL2 at home with 25 systemd timers. What they do every day: - Generate 8 social posts across platforms (quality-gated: generate → self-review → rewrite if score < 7/10) - Engage with community posts and auto-reply to comments (context-aware, max 2 rounds) - Research via RSS + HN API + Jina Reader → feed…
Mar 2026 · its alternatives →
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We’ve open-sourced Heygem, a fast and free alternative to Heygen. It generates photorealistic AI avatar videos from a photo and voice — no training, no watermark, runs locally on 8GB GPUs, and supports 4K output. Ideal for developers building AI avatar pipelines with minimal setup. Built by the team behind duix.com. Feedback and contributions welcome!
2025 · github.com · its alternatives →
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Turn your photos into jigsaw puzzles. Try free.
Jun 2026 · apps.apple.com · its alternatives →
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PixelDojo▲17Hello HN! I’m excited to share PixelDojo.ai, an all-in-one generative AI studio for creators. I built PixelDojo to be a one-stop platform where you can generate images, create short videos, and even train custom AI models (LoRA fine-tunes) from your own images. The idea came about because the AI creative process felt fragmented. 10 months ago I set off on a journey to create the ultimate AI playground. A place where cutting-edge image-generation tools are easily accessible. My goal was to bring all the latest AI creativity tools under one roof so that anyone, even a “noob” with no prior…
2024 · pixeldojo.ai · its alternatives →
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I started off with a simple goal: port the game Soldat to Typescript. I ended up not only with the game, but with a full system to train AI bots to play my own game, building a neural net to train new bot AIs from tens of thousands of simulated matches with different strategies. It also runs live all the time on my website and has a news dashboard and you can replay any game exactly. It all was a very fun way to dig into Fable's capabilities. The bill if I had done this with API billing? Nearly $2000.
Jun 2026 · soldat.bobbby.online · its alternatives →
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Hi HN, I'm excited to share a project I've built: PixelateImage.org. Instead of being a traditional image editor, this is an *AI-powered tool that generates pixel art directly from your text prompts.* If you've ever wanted to create unique pixel art characters, scenes, or assets for games, art projects, or just for fun, but perhaps lacked the specific artistic skills or time, this might be for you. My goal was to make generating retro-style or modern pixel art more accessible. You can type in a description (e.g., "a brave knight in a dark forest," "a futuristic cityscape at night," "a cute…
2025 · pixelateimage.org · its alternatives →
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GPT Image▲14Hey HN, I built a web tool that wraps the latest AI image generation models with a conversational interface. The main idea is you can iterate on images through natural dialogue instead of rewriting prompts from scratch each time. Key features I focused on: - Multi-turn editing (the AI remembers previous context) - Character/style consistency across multiple images - Multi-image fusion Not affiliated with OpenAI – the name is just a playful nod. Would love feedback from this community, especially on the UX and what features would be useful for technical users. Try it:…
2025 · gptimage.ai · its alternatives →
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I haven't seen anything like this so I decided to build it in a weekend. How it works: You see a bunch of things pulled from Wikipedia displayed on cards. You ask yes or no questions to figure out which card is the secret article. The AI model has access to the image and wiki text and it's own knowledge to answer your question. Happy to have my credits burned for the day but I'll probably have to make this paid at some point so enjoy. I found it's not easy to get cheap+fast+good responses but the tech is getting there. Most of the prompts are running through Groq infra or hitting a cache…
Apr 2026 · sleuththetruth.com · its alternatives →
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Hi guys, For my startup at www.mithrin.ai which is about create AI Chatbot Agents for websites, I wanted to create some free tools to attract traffic to the site and decided to create specialized chatbots powered by LLMs, similar to OpenAI's Custom GPTs. I realized that by using gpt-4o-mini, I could create quite powerful alternatives to GPTs that are free to the public for a very small cost (given how cheap the model api cost is). I've employed some throttling to prevent abuse and to avoid being charged too much. Then I integrated this with my main service and allowed users to use the…
2024 · mithrin.ai · its alternatives →
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Hi there, looking for feedback on my new project "Featherless.AI" The idea is to allow users to run all the models on hugging face instantly. Via the OpenAI API compatible endpoint. Why? Because its a real chore to download models and spin up GPUs, especially if you want to test multiple models. Not to mention GPUs cost multiple dollars an hour to rent. And if we want more people to use open source AI, we got to make it easier for them to try and play with all of them. So what if instead of spinning up dedicated GPUs per model (which is what every provider is doing) We can startup a LLM…
2024 · featherless.ai · its alternatives →
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Unlock your imagination with our free AI art generator
2023 · ai-art-generator.net · its alternatives →
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The toyshop for AI artists who want prompts that work
Jun 2026 · pixisburrow.art · its alternatives →
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