AIDEA

AIDEA is a small, focused browser extension for people who talk to AI models all day and are tired of retyping the same instructions. Instead of keeping prompts in a notes app and copying them by hand, you build a searchable library inside the browser and drop any saved prompt into a chat when you need it. The extension shipped on the Chrome Web Store in late 2023 and is offered by an independent developer at no cost.

The second half of the idea is customisability. AIDEA lets a saved prompt ask for input before it runs, so a single template can be reused with different topics, tones, or audiences instead of being rewritten each time. The developer also publishes SPARK, a custom GPT that walks you through assembling a prompt piece by piece, which is handy when you have a goal but not the wording.

Because it lives in the browser rather than inside one specific chat product, AIDEA is best understood as a companion layer for prompt-heavy work: research, writing, support replies, and repetitive operational tasks. It is deliberately lightweight — the listing is under 30 KB — and the developer states that no user data is collected or sold.