ZeroJitter
Stream LLM tokens without layout jitter. Canvas + Web Worker
What it does
Every AI chat app has the same bug — scrollbar jitter when streaming tokens. ZeroJitter is a React component that renders streaming LLM text on instead of the DOM. The result: → 0 layout reflows (DOM causes 1 per token) → 60fps locked (DOM drops to 45-58fps) → <1ms layout time (DOM: 0.3-2ms) → Zero dependencies → Full accessibility (aria-live mirror) → International text (CJK, BiDi, Thai, emoji) Text measurement happens in a Web Worker. The main thread just paints pixels.
Does the same job
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Hey HN, We got tired of browser frameworks restricting the LLM, so we removed the framework and gave the LLM maximum freedom to do whatever it's trained on. We gave the harness the ability to self correct and add new tools if the LLM wants (is pre-trained on) that. Our Browser Use library is tens of thousands of lines of deterministic heuristics wrapping Chrome (CDP websocket). Element extractors, click helpers, target managemenet (SUPER painful), watchdogs (crash handling, file downloads, alerts), cross origin iframes (if you want to click on an element you have to switch the target first,…
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