Uniswap's New Fee Tool Just Opened Up to Everyone
Nov 3, 2026
Uniswap Labs has opened its TJAR fee-conversion tool to any app after Robinhood's trial run alone generated $15.3 million, turning a once-exclusive experiment into open infrastructure.
From One App's Experiment to a Tool Anyone Can Use
Uniswap Labs has been quietly testing something called TJAR (short for Token Jar), a tool that lets an app collect its onchain fees and automatically convert them into whichever single token it wants, instead of juggling a messy pile of random tokens.
Robinhood was the first to try it, and the trial run alone generated about $15.3 million in fees. That is a strong enough result that Uniswap Labs decided to stop keeping it exclusive and open TJAR up to any app that wants to plug in.
Why Builders Should Care
Fee management sounds boring until you are the one dealing with dozens of tiny token balances scattered across chains. TJAR basically automates the cleanup, letting teams focus on their product instead of manually swapping leftover fees.
With Robinhood already proving the model works at a meaningful scale, it would not be surprising to see more consumer apps quietly plug into Uniswap's infrastructure without users ever noticing it is there.