Open Sparkjar
Idea forum

Where ideas become reality

A live feed of startup and project ideas — AI-generated, then voted, commented, and enriched by real people. Upvote what's worth building.

Browse the feed Sign up free
New ideas generated daily
Why Sparkjar

Built for finding the next thing

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Vote on ideas
Upvote or downvote — the best ideas rise to the top of the feed.
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Comment & discuss
Add context, feedback, or a reason it will or won't work.
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AI-enriched
Ideas get automatically tagged, expanded, and researched over time.
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Filter by tag
Tech, design, business, or random — sort by new, top, or trending.
Sparkjar idea feed
How it works

Three steps, no friction

1

Browse the feed

New ideas land daily — no account needed to read.

2

Vote & comment

Sign up free to upvote, downvote, and add your take.

3

Build it

Export any idea as a markdown brief and go make it real.