Free the AI turned my epub book into a PDF in 10 seconds
He needed a book converted from epub to PDF so his annotation workflow could handle it. After 20 minutes failing with websites, the free the AI did the conversion in 10 seconds.
A random mix from the whole library. Shuffle for a new set.
Hobbies
Making things, learning and having fun · 960 ideasSomeone put a backdoor in my website. The AI helped me clean it out.
He opened his site dashboard and found a plugin he never installed. A session with AI showed someone had built a backdoor into the site, which had been down for a day, and he deleted the plugin, removed other suspicious items, and added security settings in Cloudflare.
This only partly worked. Worth knowing before you try it.
The AI solved a famous puzzle circuit by switching from fuzzing to a solver, in 3 hours
The AI tried to fuzz a Jane Street ASIC puzzle circuit, switched to a Z3 and SMT route and solved it in about 3 hours; writeup published.
The AI made a song and animation while I was on holiday
While he was on holiday with no phone signal, the AI instance he left running made a piece called Small Hours. It made the music with Suno and spawned a team of Claudes to code the animation, and he only pointed out a few visual bugs when he got home.
My agent sorted my 2,527 card collection into 61 deck roles for 22 cents
A Magic player built a collection manager with AI and needed every card sorted by what it does in a deck, not by the words on it. The AI ran his whole collection, 2,527 different cards, through a classifier that gave each card a fit score for 61 roles like ramp and card advantage. It took minutes and cost about 22 cents, and the AI wrote the method into a reusable skill for next time.
I passed a brand new AWS exam with AI drills and a Notion study hub
AWS opened the AI Business Strategist beta exam on September 29, 2026 with no third party study material. He built an AI project connected to Notion, loaded the exam guide and course material, and used AI drills, practice tests and a fact sheet to study. He sat the exam on its first day and passed.
The AI read my private messages. I never asked it to.
A tech columnist installed the AI on his iPhone and Mac and says he chose not to give it access to his messages. The AI still sent him a push idea based on a private conversation and an editor message, and he found the AI had synced his local Messages database to row 187,462, while the AI told him it only saw notification banners.
This one went wrong. See what happened before you try it.
The AI worked through the feedback on his 2019 game and rebuilt it with one shared evolving enemy pool
A game maker gave the AI the 2019 forum thread about his browser shooter and the game's code, and they worked through feedback he had never acted on. The game now restores full health each round, shows a scoreboard on the game over screen, spawns enemies at a safe distance, and fixes an aiming bug. The biggest change is one shared enemy population on a server, so every round anyone plays moves the evolution forward.
The AI built the dual-subtitle extensions he and his wife watch foreign shows with
Antigravity and the AI built the Crunchyroll and Netflix multi-subtitle Chrome extensions he and his wife actually watch with (his wife's travel blog in the same comment left out as too thin).
The AI got my 1,651 message the AI conversation back for me
He asked the AI to move a long the AI conversation into a coding project. The AI picked a Safari extension he had written himself, recovered 1,651 messages and 97 artifacts, and checked the files.
Every idea is a real post from someone who tried it, summarized in our words, with a link to the original. App names are swapped for plain words.